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replace RPC stack with netapp #123

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lx merged 5 commits from netapp into main 2021-10-25 13:49:35 +00:00
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2
Cargo.lock generated
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@ -874,7 +874,7 @@ dependencies = [
[[package]]
name = "netapp"
version = "0.3.0"
source = "git+https://git.deuxfleurs.fr/lx/netapp#9b64c27da68f7ac9049e02e26da918e871a63f07"
source = "git+https://git.deuxfleurs.fr/lx/netapp#c20d36892bcccae580603249706ba60d54a46d7f"
dependencies = [
"arc-swap",
"async-trait",

2
default.nix
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@ -65,7 +65,7 @@ in let
*/
''^(src|tests)'' # fixed default
''.*\.(rs|toml)$'' # fixed default
''^(crdt|replication)'' # our crate submodules
''^(crdt|replication|cli)'' # our crate submodules
];
};

1
doc/book/src/SUMMARY.md
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@ -30,3 +30,4 @@
- [Working Documents](./working_documents/index.md)
- [Load Balancing Data](./working_documents/load_balancing.md)
- [Migrating from 0.3 to 0.4](./working_documents/migration_04.md)

176
doc/book/src/cookbook/real_world.md
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@ -11,15 +11,12 @@ to get familiar with Garage's command line and usage patterns.
## Prerequisites
To run a real-world deployment, make sure you the following conditions are met:
To run a real-world deployment, make sure the following conditions are met:
- You have at least three machines with sufficient storage space available.
- Each machine has a public IP address which is reachable by other machines.
Running behind a NAT is possible, but having several Garage nodes behind a single NAT
is slightly more involved as each will have to have a different RPC port number
(the local port number of a node must be the same as the port number exposed publicly
by the NAT).
Running behind a NAT is likely to be possible but hasn't been tested for the latest version (TODO).
- Ideally, each machine should have a SSD available in addition to the HDD you are dedicating
to Garage. This will allow for faster access to metadata and has the potential
@ -45,44 +42,22 @@ For our example, we will suppose the following infrastructure with IPv6 connecti
## Get a Docker image
Our docker image is currently named `lxpz/garage_amd64` and is stored on the [Docker Hub](https://hub.docker.com/r/lxpz/garage_amd64/tags?page=1&ordering=last_updated).
We encourage you to use a fixed tag (eg. `v0.3.0`) and not the `latest` tag.
For this example, we will use the latest published version at the time of the writing which is `v0.3.0` but it's up to you
We encourage you to use a fixed tag (eg. `v0.4.0`) and not the `latest` tag.
For this example, we will use the latest published version at the time of the writing which is `v0.4.0` but it's up to you
to check [the most recent versions on the Docker Hub](https://hub.docker.com/r/lxpz/garage_amd64/tags?page=1&ordering=last_updated).
For example:
```
sudo docker pull lxpz/garage_amd64:v0.3.0
sudo docker pull lxpz/garage_amd64:v0.4.0
```
## Generating TLS certificates
You first need to generate TLS certificates to encrypt traffic between Garage nodes
(reffered to as RPC traffic).
To generate your TLS certificates, run on your machine:
```
wget https://git.deuxfleurs.fr/Deuxfleurs/garage/raw/branch/main/genkeys.sh
chmod +x genkeys.sh
./genkeys.sh
```
It will creates a folder named `pki/` containing the keys that you will used for the cluster.
These files will have to be copied to all of your cluster nodes, as explained below.
## Deploying and configuring Garage
On each machine, we will have a similar setup,
especially you must consider the following folders/files:
- `/etc/garage/garage.toml`: Garage daemon's configuration (see below)
- `/etc/garage/pki/`: Folder containing Garage certificates,
must be generated on your computer and copied on the servers.
Only the files `garage-ca.crt`, `garage.crt` and `garage.key` are necessary.
- `/etc/garage.toml`: Garage daemon's configuration (see below)
- `/var/lib/garage/meta/`: Folder containing Garage's metadata,
put this folder on a SSD if possible
@ -91,7 +66,7 @@ especially you must consider the following folders/files:
this folder will be your main data storage and must be on a large storage (e.g. large HDD)
A valid `/etc/garage/garage.toml` for our cluster would be:
A valid `/etc/garage/garage.toml` for our cluster would look as follows:
```toml
metadata_dir = "/var/lib/garage/meta"
@ -100,18 +75,8 @@ data_dir = "/var/lib/garage/data"
replication_mode = "3"
rpc_bind_addr = "[::]:3901"
bootstrap_peers = [
"[fc00:1::1]:3901",
"[fc00:1::2]:3901",
"[fc00:B::1]:3901",
"[fc00:F::1]:3901",
]
[rpc_tls]
ca_cert = "/etc/garage/pki/garage-ca.crt"
node_cert = "/etc/garage/pki/garage.crt"
node_key = "/etc/garage/pki/garage.key"
rpc_public_addr = "<this node's public IP>:3901"
rpc_secret = "<RPC secret>"
[s3_api]
s3_region = "garage"
@ -123,11 +88,14 @@ root_domain = ".web.garage"
index = "index.html"
```
Please make sure to change `bootstrap_peers` to **your** IP addresses!
Check the following for your configuration files:
Check the [configuration file reference documentation](../reference_manual/configuration.md)
to learn more about all available configuration options.
- Make sure `rpc_public_addr` contains the public IP address of the node you are configuring.
This parameter is optional but recommended: if your nodes have trouble communicating with
one another, consider adding it.
- Make sure `rpc_secret` is the same value on all nodes. It should be a 32-bytes hex-encoded secret key.
You can generate such a key with `openssl rand -hex 32`.
## Starting Garage using Docker
@ -139,11 +107,10 @@ docker run \
--name garaged \
--restart always \
--network host \
-v /etc/garage/pki:/etc/garage/pki \
-v /etc/garage/garage.toml:/garage/garage.toml \
-v /etc/garage.toml:/etc/garage.toml \
-v /var/lib/garage/meta:/var/lib/garage/meta \
-v /var/lib/garage/data:/var/lib/garage/data \
lxpz/garage_amd64:v0.3.0
lxpz/garage_amd64:v0.4.0
```
It should be restarted automatically at each reboot.
@ -155,101 +122,102 @@ but please check the relase notes before doing so!
To upgrade, simply stop and remove this container and
start again the command with a new version of Garage.
## Controling the daemon
The `garage` binary has two purposes:
- it acts as a daemon when launched with `garage server ...`
- it acts as a daemon when launched with `garage server`
- it acts as a control tool for the daemon when launched with any other command
In this section, we will see how to use the `garage` binary as a control tool for the daemon we just started.
You first need to get a shell having access to this binary. For instance, enter the Docker container with:
Ensure an appropriate `garage` binary (the same version as your Docker image) is available in your path.
If your configuration file is at `/etc/garage.toml`, the `garage` binary should work with no further change.
You can test your `garage` CLI utility by running a simple command such as:
```bash
sudo docker exec -ti garaged bash
garage status
```
You will now have a shell where the Garage binary is available as `/garage/garage`
*You can also install the binary on your machine to remotely control the cluster.*
## Talk to the daemon and create an alias
`garage` requires 4 options to talk with the daemon:
At this point, nodes are not yet talking to one another.
Your output should therefore look like follows:
```
--ca-cert <ca-cert>
--client-cert <client-cert>
--client-key <client-key>
-h, --rpc-host <rpc-host>
Mercury$ garage node-id
==== HEALTHY NODES ====
ID Hostname Address Tag Zone Capacity
563e1ac825ee3323… Mercury [fc00:1::1]:3901 NO ROLE ASSIGNED
```
The 3 first ones are certificates and keys needed by TLS, the last one is simply the address of Garage's RPC endpoint.
If you are invoking `garage` from a server node directly, you do not need to set `--rpc-host`
as the default value `127.0.0.1:3901` will allow it to contact Garage correctly.
## Connecting nodes together
To avoid typing the 3 first options each time we want to run a command,
you can use the following alias:
When your Garage nodes first start, they will generate a local node identifier
(based on a public/private key pair).
To obtain the node identifier of a node, once it is generated,
run `garage node-id`.
This will print keys as follows:
```bash
alias garagectl='/garage/garage \
--ca-cert /etc/garage/pki/garage-ca.crt \
--client-cert /etc/garage/pki/garage.crt \
--client-key /etc/garage/pki/garage.key'
Mercury$ garage node-id
563e1ac825ee3323aa441e72c26d1030d6d4414aeb3dd25287c531e7fc2bc95d@[fc00:1::1]:3901
Venus$ garage node-id
86f0f26ae4afbd59aaf9cfb059eefac844951efd5b8caeec0d53f4ed6c85f332@[fc00:1::2]:3901
etc.
```
You can now use all of the commands presented in the [quick start guide](../quick_start/index.md),
simply replace occurences of `garage` by `garagectl`.
You can then instruct nodes to connect to one another as follows:
#### Test the alias
You can test your alias by running a simple command such as:
```
garagectl status
```bash
# Instruct Venus to connect to Mercury (this will establish communication both ways)
Venus$ garage node connect 563e1ac825ee3323aa441e72c26d1030d6d4414aeb3dd25287c531e7fc2bc95d@[fc00:1::1]:3901
```
You should get something like that as result:
You don't nead to instruct all node to connect to all other nodes:
nodes will discover one another transitively.
Now if your run `garage status` on any node, you should have an output that looks as follows:
```
Healthy nodes:
8781c50c410a41b3… Mercury [fc00:1::1]:3901 UNCONFIGURED/REMOVED
2a638ed6c775b69a… Venus [fc00:1::2]:3901 UNCONFIGURED/REMOVED
68143d720f20c89d… Earth [fc00:B::1]:3901 UNCONFIGURED/REMOVED
212f7572f0c89da9… Mars [fc00:F::1]:3901 UNCONFIGURED/REMOVED
==== HEALTHY NODES ====
ID Hostname Address Tag Zone Capacity
563e1ac825ee3323… Mercury [fc00:1::1]:3901 NO ROLE ASSIGNED
86f0f26ae4afbd59… Venus [fc00:1::2]:3901 NO ROLE ASSIGNED
68143d720f20c89d… Earth [fc00:B::1]:3901 NO ROLE ASSIGNED
212f7572f0c89da9… Mars [fc00:F::1]:3901 NO ROLE ASSIGNED
```
## Configuring a cluster
## Giving roles to nodes
We will now inform Garage of the disk space available on each node of the cluster
as well as the zone (e.g. datacenter) in which each machine is located.
For our example, we will suppose we have the following infrastructure (Capacity, Identifier and Datacenter are specific values to Garage described in the following):
For our example, we will suppose we have the following infrastructure
(Capacity, Identifier and Zone are specific values to Garage described in the following):
| Location | Name | Disk Space | `Capacity` | `Identifier` | `Zone` |
|----------|---------|------------|------------|--------------|--------------|
| Paris | Mercury | 1 To | `2` | `8781c5` | `par1` |
| Paris | Venus | 2 To | `4` | `2a638e` | `par1` |
| London | Earth | 2 To | `4` | `68143d` | `lon1` |
| Brussels | Mars | 1.5 To | `3` | `212f75` | `bru1` |
| Paris | Mercury | 1 To | `2` | `563e` | `par1` |
| Paris | Venus | 2 To | `4` | `86f0` | `par1` |
| London | Earth | 2 To | `4` | `6814` | `lon1` |
| Brussels | Mars | 1.5 To | `3` | `212f` | `bru1` |
#### Node identifiers
After its first launch, Garage generates a random and unique identifier for each nodes, such as:
```
8781c50c410a41b363167e9d49cc468b6b9e4449b6577b64f15a249a149bdcbc
563e1ac825ee3323aa441e72c26d1030d6d4414aeb3dd25287c531e7fc2bc95d
```
Often a shorter form can be used, containing only the beginning of the identifier, like `8781c5`,
Often a shorter form can be used, containing only the beginning of the identifier, like `563e`,
which identifies the server "Mercury" located in "Paris" according to our previous table.
The most simple way to match an identifier to a node is to run:
```
garagectl status
garage status
```
It will display the IP address associated with each node;
@ -287,16 +255,16 @@ have 66% chance of being stored by Venus and 33% chance of being stored by Mercu
Given the information above, we will configure our cluster as follow:
```
garagectl node configure -z par1 -c 2 -t mercury 8781c5
garagectl node configure -z par1 -c 4 -t venus 2a638e
garagectl node configure -z lon1 -c 4 -t earth 68143d
garagectl node configure -z bru1 -c 3 -t mars 212f75
garage node configure -z par1 -c 2 -t mercury 563e
garage node configure -z par1 -c 4 -t venus 86f0
garage node configure -z lon1 -c 4 -t earth 6814
garage node configure -z bru1 -c 3 -t mars 212f
```
## Using your Garage cluster
Creating buckets and managing keys is done using the `garagectl` CLI,
Creating buckets and managing keys is done using the `garage` CLI,
and is covered in the [quick start guide](../quick_start/index.md).
Remember also that the CLI is self-documented thanks to the `--help` flag and
the `help` subcommand (e.g. `garage help`, `garage key --help`).

42
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@ -10,8 +10,6 @@ Following this guide is recommended before moving on to
Note that this kind of deployment should not be used in production, as it provides
no redundancy for your data!
We will also skip intra-cluster TLS configuration, meaning that if you add nodes
to your cluster, communication between them will not be secure.
## Get a binary
@ -30,7 +28,10 @@ you can [build Garage from source](../cookbook/from_source.md).
## Writing a first configuration file
This first configuration file should allow you to get started easily with the simplest
possible Garage deployment:
possible Garage deployment.
**Save it as `/etc/garage.toml`.**
You can also store it somewhere else, but you will have to specify `-c path/to/garage.toml`
at each invocation of the `garage` binary (for example: `garage -c ./garage.toml server`, `garage -c ./garage.toml status`).
```toml
metadata_dir = "/tmp/meta"
@ -39,10 +40,10 @@ data_dir = "/tmp/data"
replication_mode = "none"
rpc_bind_addr = "[::]:3901"
rpc_public_addr = "127.0.0.1:3901"
rpc_secret = "1799bccfd7411eddcf9ebd316bc1f5287ad12a68094e1c6ac6abde7e6feae1ec"
bootstrap_peers = [
"127.0.0.1:3901",
]
bootstrap_peers = []
[s3_api]
s3_region = "garage"
@ -54,7 +55,10 @@ root_domain = ".web.garage"
index = "index.html"
```
Save your configuration file as `garage.toml`.
The `rpc_secret` value provided above is just an example. It will work, but in
order to secure your cluster you will need to use another one. You can generate
such a value with `openssl rand -hex 32`.
As you can see in the `metadata_dir` and `data_dir` parameters, we are saving Garage's data
in `/tmp` which gets erased when your system reboots. This means that data stored on this
@ -67,15 +71,15 @@ your data to be persisted properly.
Use the following command to launch the Garage server with our configuration file:
```
RUST_LOG=garage=info garage server -c garage.toml
RUST_LOG=garage=info garage server
```
You can tune Garage's verbosity as follows (from less verbose to more verbose):
```
RUST_LOG=garage=info garage server -c garage.toml
RUST_LOG=garage=debug garage server -c garage.toml
RUST_LOG=garage=trace garage server -c garage.toml
RUST_LOG=garage=info garage server
RUST_LOG=garage=debug garage server
RUST_LOG=garage=trace garage server
```
Log level `info` is recommended for most use cases.
@ -85,11 +89,12 @@ Log level `debug` can help you check why your S3 API calls are not working.
## Checking that Garage runs correctly
The `garage` utility is also used as a CLI tool to configure your Garage deployment.
It tries to connect to a Garage server through the RPC protocol, by default looking
for a Garage server at `localhost:3901`.
It uses values from the TOML configuration file to find the Garage daemon running on the
local node, therefore if your configuration file is not at `/etc/garage.toml` you will
again have to specify `-c path/to/garage.toml`.
Since our deployment already binds to port 3901, the following command should be sufficient
to show Garage's status:
If the `garage` CLI is able to correctly detect the parameters of your local Garage node,
the following command should be enough to show the status of your cluster:
```
garage status
@ -98,8 +103,9 @@ garage status
This should show something like this:
```
Healthy nodes:
2a638ed6c775b69a… linuxbox 127.0.0.1:3901 UNCONFIGURED/REMOVED
==== HEALTHY NODES ====
ID Hostname Address Tag Zone Capacity
563e1ac825ee3323… linuxbox 127.0.0.1:3901 NO ROLE ASSIGNED
```
## Configuring your Garage node
@ -117,7 +123,7 @@ garage node configure -z dc1 -c 1 <node_id>
where `<node_id>` corresponds to the identifier of the node shown by `garage status` (first column).
You can enter simply a prefix of that identifier.
For instance here you could write just `garage node configure -z dc1 -c 1 2a63`.
For instance here you could write just `garage node configure -z dc1 -c 1 563e`.

83
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@ -10,31 +10,26 @@ block_size = 1048576
replication_mode = "3"
rpc_secret = "4425f5c26c5e11581d3223904324dcb5b5d5dfb14e5e7f35e38c595424f5f1e6"
rpc_bind_addr = "[::]:3901"
rpc_public_addr = "[fc00:1::1]:3901"
bootstrap_peers = [
"[fc00:1::1]:3901",
"[fc00:1::2]:3901",
"[fc00:B::1]:3901",
"[fc00:F::1]:3901",
"563e1ac825ee3323aa441e72c26d1030d6d4414aeb3dd25287c531e7fc2bc95d@[fc00:1::1]:3901",
"86f0f26ae4afbd59aaf9cfb059eefac844951efd5b8caeec0d53f4ed6c85f332[fc00:1::2]:3901",
"681456ab91350f92242e80a531a3ec9392cb7c974f72640112f90a600d7921a4@[fc00:B::1]:3901",
"212fd62eeaca72c122b45a7f4fa0f55e012aa5e24ac384a72a3016413fa724ff@[fc00:F::1]:3901",
]
consul_host = "consul.service"
consul_service_name = "garage-daemon"
max_concurrent_rpc_requests = 12
sled_cache_capacity = 134217728
sled_flush_every_ms = 2000
[rpc_tls]
ca_cert = "/etc/garage/pki/garage-ca.crt"
node_cert = "/etc/garage/pki/garage.crt"
node_key = "/etc/garage/pki/garage.key"
[s3_api]
s3_region = "garage"
api_bind_addr = "[::]:3900"
s3_region = "garage"
[s3_web]
bind_addr = "[::]:3902"
@ -63,10 +58,15 @@ when [configuring it](../getting_started/05_cluster.md).
#### `block_size`
Garage splits stored objects in consecutive chunks of size `block_size` (except the last
one which might be standard). The default size is 1MB and should work in most cases.
If you are interested in tuning this, feel free to do so (and remember to report your
findings to us!)
Garage splits stored objects in consecutive chunks of size `block_size`
(except the last one which might be smaller). The default size is 1MB and
should work in most cases. If you are interested in tuning this, feel free
to do so (and remember to report your findings to us!). If this value is
changed for a running Garage installation, only files newly uploaded will be
affected. Previously uploaded files will remain available. This however
means that chunks from existing files will not be deduplicated with chunks
from newly uploaded files, meaning you might use more storage space that is
optimally possible.
#### `replication_mode`
@ -97,6 +97,14 @@ Never run a Garage cluster where that is not the case.**
Changing the `replication_mode` of a cluster might work (make sure to shut down all nodes
and changing it everywhere at the time), but is not officially supported.
#### `rpc_secret`
Garage uses a secret key that is shared between all nodes of the cluster
in order to identify these nodes and allow them to communicate together.
This key should be specified here in the form of a 32-byte hex-encoded
random string. Such a string can be generated with a command
such as `openssl rand -hex 32`.
#### `rpc_bind_addr`
The address and port on which to bind for inter-cluster communcations
@ -106,10 +114,28 @@ the node, even in the case of a NAT: the NAT should be configured to forward the
port number to the same internal port nubmer. This means that if you have several nodes running
behind a NAT, they should each use a different RPC port number.
#### `rpc_public_addr`
The address and port that other nodes need to use to contact this node for
RPC calls. **This parameter is optional but recommended.** In case you have
a NAT that binds the RPC port to a port that is different on your public IP,
this field might help making it work.
#### `bootstrap_peers`
A list of IPs and ports on which to contact other Garage peers of this cluster.
This should correspond to the RPC ports set up with `rpc_bind_addr`.
A list of peer identifiers on which to contact other Garage peers of this cluster.
These peer identifiers have the following syntax:
```
<node public key>@<node public IP or hostname>:<port>
```
In the case where `rpc_public_addr` is correctly specified in the
configuration file, the full identifier of a node including IP and port can
be obtained by running `garage node-id` and then included directly in the
`bootstrap_peers` list of other nodes. Otherwise, only the node's public
key will be returned by `garage node-id` and you will have to add the IP
yourself.
#### `consul_host` and `consul_service_name`
@ -121,12 +147,6 @@ The `consul_host` parameter should be set to the hostname of the Consul server,
and `consul_service_name` should be set to the service name under which Garage's
RPC ports are announced.
#### `max_concurrent_rpc_requests`
Garage implements rate limiting for RPC requests: no more than
`max_concurrent_rpc_requests` concurrent outbound RPC requests will be made
by a Garage node (additionnal requests will be put in a waiting queue).
#### `sled_cache_capacity`
This parameter can be used to tune the capacity of the cache used by
@ -143,21 +163,6 @@ of a power outage (though this should not matter much as data is replicated on o
nodes). The default value, 2000ms, should be appropriate for most use cases.
## The `[rpc_tls]` section
This section should be used to configure the TLS certificates used to encrypt
intra-cluster traffic (RPC traffic). The following parameters should be set:
- `ca_cert`: the certificate of the CA that is allowed to sign individual node certificates
- `node_cert`: the node certificate for the current node
- `node_key`: the key associated with the node certificate
Note tha several nodes may use the same node certificate, as long as it is signed
by the CA.
If this section is absent, TLS is not used to encrypt intra-cluster traffic.
## The `[s3_api]` section
#### `api_bind_addr`

89
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@ -23,76 +23,35 @@ Not implemented:
All APIs that are not mentionned are not implemented and will return a 400 bad request.
#### AbortMultipartUpload
| Endpoint | Status |
|------------------------------|----------------------------------|
| AbortMultipartUpload | Implemented |
| CompleteMultipartUpload | Implemented |
| CopyObject | Implemented |
| CreateBucket | Unsupported, stub (see below) |
| CreateMultipartUpload | Implemented |
| DeleteBucket | Unsupported (see below) |
| DeleteObject | Implemented |
| DeleteObjects | Implemented |
| GetBucketLocation | Implemented |
| GetBucketVersioning | Stub (see below) |
| GetObject | Implemented |
| HeadBucket | Implemented |
| HeadObject | Implemented |
| ListBuckets | Implemented |
| ListObjects | Implemented, bugs? (see below) |
| ListObjectsV2 | Implemented |
| PutObject | Implemented |
| UploadPart | Implemented |
Implemented.
#### CompleteMultipartUpload
Implemented badly. Garage will not check that all the parts stored correspond to the list given by the client in the request body. This means that the multipart upload might be completed with an invalid size. This is a bug and will be fixed.
- **CreateBucket:** Garage does not yet accept creating buckets or giving access using API calls, it has to be done using the CLI tools. CreateBucket will return a 200 if the bucket exists and user has write access, and a 403 Forbidden in all other cases.
#### CopyObject
- **DeleteBucket:** Garage does not yet accept deleting buckets using API calls, it has to be done using the CLI tools. This request will return a 403 Forbidden.
Implemented.
#### CreateBucket
Garage does not accept creating buckets or giving access using API calls, it has to be done using the CLI tools. CreateBucket will return a 200 if the bucket exists and user has write access, and a 403 Forbidden in all other cases.
#### CreateMultipartUpload
Implemented.
#### DeleteBucket
Garage does not accept deleting buckets using API calls, it has to be done using the CLI tools. This request will return a 403 Forbidden.
#### DeleteObject
Implemented.
#### DeleteObjects
Implemented.
#### GetBucketLocation
Implemented.
#### GetBucketVersioning
Stub implementation (Garage does not yet support versionning so this always returns
- **GetBucketVersioning:** Stub implementation (Garage does not yet support versionning so this always returns
"versionning not enabled").
#### GetObject
Implemented.
#### HeadBucket
Implemented.
#### HeadObject
Implemented.
#### ListBuckets
Implemented.
#### ListObjects
Implemented, but there isn't a very good specification of what `encoding-type=url` covers so there might be some encoding bugs. In our implementation the url-encoded fields are in the same in ListObjects as they are in ListObjectsV2.
#### ListObjectsV2
Implemented.
#### PutObject
Implemented.
#### UploadPart
Implemented.
- **ListObjects:** Implemented, but there isn't a very good specification of what `encoding-type=url` covers so there might be some encoding bugs. In our implementation the url-encoded fields are in the same in ListObjects as they are in ListObjectsV2.

61
doc/book/src/working_documents/migration_04.md Normal file
View file

@ -0,0 +1,61 @@
# Migrating from 0.3 to 0.4
**Migrating from 0.3 to 0.4 is unsupported. This document is only intended to document the process internally for the Deuxfleurs cluster where we have to do it. Do not try it yourself, you will lose your data and we will not help you.**
**Migrating from 0.2 to 0.4 will break everything for sure. Never try it.**
The internal data format of Garage hasn't changed much between 0.3 and 0.4.
The Sled database is still the same, and the data directory as well.
The following has changed, all in the meta directory:
- `node_id` in 0.3 contains the identifier of the current node. In 0.4, this file does nothing and should be deleted. It is replaced by `node_key` (the secret key) and `node_key.pub` (the associated public key). A node's identifier on the ring is its public key.
- `peer_info` in 0.3 contains the list of peers saved automatically by Garage. The format has changed and it is now stored in `peer_list` (`peer_info` should be deleted).
When migrating, all node identifiers will change. This also means that the affectation of data partitions on the ring will change, and lots of data will have to be rebalanced.
- If your cluster has only 3 nodes, all nodes store everything, therefore nothing has to be rebalanced.
- If your cluster has only 4 nodes, for any partition there will always be at least 2 nodes that stored data before that still store it after. Therefore the migration should in theory be transparent and Garage should continue to work during the rebalance.
- If your cluster has 5 or more nodes, data will disappear during the migration. Do not migrate (fortunately we don't have this scenario at Deuxfleurs), or if you do, make Garage unavailable until things stabilize (disable web and api access).
The migration steps are as follows:
1. Prepare a new configuration file for 0.4. For each node, point to the same meta and data directories as Garage 0.3. Basically, the things that change are the following:
- No more `rpc_tls` section
- You have to generate a shared `rpc_secret` and put it in all config files
- `bootstrap_nodes` has a different syntax as it has to contain node keys. Leave it empty and use `garage node-id` and `garage node connect` instead (new features of 0.4)
- put the publicly accessible RPC address of your node in `rpc_public_addr` if possible (its optional but recommended)
- If you are using Consul, change the `consul_service_name` to NOT be the name advertised by Nomad. Now Garage is responsible for advertising its own service itself.
2. Disable api and web access for some time, do `garage repair --all --yes tables` and `garage repair --all --yes blocks`, check the logs and check that all data seems to be synced correctly between nodes.
3. Save somewhere the output of `garage status`. We will need this to remember how to reconfigure nodes in 0.4.
4. Turn off Garage 0.3
5. Backup metadata folders if you can (i.e. if you have space to do it somewhere). Backuping data folders could also be usefull but that's much harder to do. If your filesystem supports snapshots, this could be a good time to use them.
6. Turn on Garage 0.4
7. At this point, running `garage status` should indicate that all nodes of the previous cluster are "unavailable". The nodes have new identifiers that should appear in healthy nodes once they can talk to one another (use `garage node connect` if necessary`). They should have NO ROLE ASSIGNED at the moment.
8. Prepare a script with several `garage node configure` commands that replace each of the v0.3 node ID with the corresponding v0.4 node ID, with the same zone/tag/capacity. For example if your node `drosera` had identifier `c24e` before and now has identifier `789a`, and it was configured with capacity `2` in zone `dc1`, put the following command in your script:
```bash
garage node configure 789a -z dc1 -c 2 -t drosera --replace c24e
```
9. Run your reconfiguration script. Check that the new output of `garage status` contains the correct node IDs with the correct values for capacity and zone. Old nodes should no longer be mentioned.
10. If your cluster has 4 nodes or less, and you are feeling adventurous, you can reenable Web and API access now. Things will probably work.
11. Garage might already be resyncing stuff. Issue a `garage repair --all --yes tables` and `garage repair --all --yes blocks` to force it to do so.
12. Wait for resyncing activity to stop in the logs. Do steps 11 and 12 two or three times, until you see that when you issue the repair commands, nothing gets resynced any longer.
13. Your upgraded cluster should be in a working state. Re-enable API and Web access and check that everything went well.

6
script/dev-bucket.sh
View file

@ -9,11 +9,11 @@ GARAGE_RELEASE="${REPO_FOLDER}/target/release/"
NIX_RELEASE="${REPO_FOLDER}/result/bin/"
PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:${NIX_RELEASE}:$PATH"
garage bucket create eprouvette
KEY_INFO=`garage key new --name opérateur`
garage -c /tmp/config.1.toml bucket create eprouvette
KEY_INFO=$(garage -c /tmp/config.1.toml key new --name opérateur)
ACCESS_KEY=`echo $KEY_INFO|grep -Po 'GK[a-f0-9]+'`
SECRET_KEY=`echo $KEY_INFO|grep -Po 'Secret key: [a-f0-9]+'|grep -Po '[a-f0-9]+$'`
garage bucket allow eprouvette --read --write --key $ACCESS_KEY
garage -c /tmp/config.1.toml bucket allow eprouvette --read --write --key $ACCESS_KEY
echo "$ACCESS_KEY $SECRET_KEY" > /tmp/garage.s3
echo "Bucket s3://eprouvette created. Credentials stored in /tmp/garage.s3."

28
script/dev-cluster.sh
View file

@ -17,6 +17,10 @@ MAIN_LABEL="\e[${FANCYCOLORS[0]}[main]\e[49m"
WHICH_GARAGE=$(which garage || exit 1)
echo -en "${MAIN_LABEL} Found garage at: ${WHICH_GARAGE}\n"
NETWORK_SECRET="$(openssl rand -hex 32)"
# <<<<<<<<< BEGIN FOR LOOP ON NODES
for count in $(seq 1 3); do
CONF_PATH="/tmp/config.$count.toml"
LABEL="\e[${FANCYCOLORS[$count]}[$count]\e[49m"
@ -26,13 +30,10 @@ block_size = 1048576 # objects are split in blocks of maximum this number of b
metadata_dir = "/tmp/garage-meta-$count"
data_dir = "/tmp/garage-data-$count"
rpc_bind_addr = "0.0.0.0:$((3900+$count))" # the port other Garage nodes will use to talk to this node
bootstrap_peers = [
"127.0.0.1:3901",
"127.0.0.1:3902",
"127.0.0.1:3903"
]
max_concurrent_rpc_requests = 12
rpc_public_addr = "127.0.0.1:$((3900+$count))"
bootstrap_peers = []
replication_mode = "3"
rpc_secret = "$NETWORK_SECRET"
[s3_api]
api_bind_addr = "0.0.0.0:$((3910+$count))" # the S3 API port, HTTP without TLS. Add a reverse proxy for the TLS part.
@ -61,11 +62,21 @@ if [ -z "$SKIP_HTTPS" ]; then
socat openssl-listen:4443,reuseaddr,fork,cert=/tmp/garagessl/test.pem,verify=0 tcp4-connect:localhost:3911 &
fi
(garage server -c /tmp/config.$count.toml 2>&1|while read r; do echo -en "$LABEL $r\n"; done) &
(garage -c /tmp/config.$count.toml server 2>&1|while read r; do echo -en "$LABEL $r\n"; done) &
done
# >>>>>>>>>>>>>>>> END FOR LOOP ON NODES
sleep 3
# Establish connections between nodes
for count in $(seq 1 3); do
NODE=$(garage -c /tmp/config.$count.toml node-id -q)
for count2 in $(seq 1 3); do
garage -c /tmp/config.$count2.toml node connect $NODE
done
done
RETRY=120
until garage status 2>&1|grep -q Healthy ; do
until garage -c /tmp/config.1.toml status 2>&1|grep -q HEALTHY ; do
(( RETRY-- ))
if (( RETRY <= 0 )); then
echo -en "${MAIN_LABEL} Garage did not start"
@ -74,6 +85,7 @@ until garage status 2>&1|grep -q Healthy ; do
echo -en "${MAIN_LABEL} cluster starting...\n"
sleep 1
done
echo -en "${MAIN_LABEL} cluster started\n"
wait

8
script/dev-configure.sh
View file

@ -11,7 +11,7 @@ PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:${NIX_RELEASE}:$PATH"
sleep 5
RETRY=120
until garage status 2>&1|grep -q Healthy ; do
until garage -c /tmp/config.1.toml status 2>&1|grep -q HEALTHY ; do
(( RETRY-- ))
if (( RETRY <= 0 )); then
echo "garage did not start in time, failing."
@ -21,10 +21,10 @@ until garage status 2>&1|grep -q Healthy ; do
sleep 1
done
garage status \
| grep UNCONFIGURED \
garage -c /tmp/config.1.toml status \
| grep 'NO ROLE' \
| grep -Po '^[0-9a-f]+' \
| while read id; do
garage node configure -z dc1 -c 1 $id
garage -c /tmp/config.1.toml node configure -z dc1 -c 1 $id
done

17
script/test-smoke.sh
View file

@ -17,13 +17,14 @@ SKIP_DUCK=1
echo "⏳ Setup"
${SCRIPT_FOLDER}/dev-clean.sh
${SCRIPT_FOLDER}/dev-cluster.sh > /tmp/garage.log 2>&1 &
sleep 6
${SCRIPT_FOLDER}/dev-configure.sh
${SCRIPT_FOLDER}/dev-bucket.sh
which garage
garage status
garage key list
garage bucket list
garage -c /tmp/config.1.toml status
garage -c /tmp/config.1.toml key list
garage -c /tmp/config.1.toml bucket list
dd if=/dev/urandom of=/tmp/garage.1.rnd bs=1k count=2 # No multipart, inline storage (< INLINE_THRESHOLD = 3072 bytes)
dd if=/dev/urandom of=/tmp/garage.2.rnd bs=1M count=5 # No multipart but file will be chunked
@ -116,9 +117,9 @@ if [ -z "$SKIP_AWS" ]; then
echo "<h1>hello world</h1>" > /tmp/garage-index.html
aws s3 cp /tmp/garage-index.html s3://eprouvette/index.html
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3923/ ` == 404 ]
garage bucket website --allow eprouvette
garage -c /tmp/config.1.toml bucket website --allow eprouvette
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3923/ ` == 200 ]
garage bucket website --deny eprouvette
garage -c /tmp/config.1.toml bucket website --deny eprouvette
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3923/ ` == 404 ]
aws s3 rm s3://eprouvette/index.html
rm /tmp/garage-index.html
@ -127,8 +128,8 @@ fi
echo "🏁 Teardown"
AWS_ACCESS_KEY_ID=`cat /tmp/garage.s3 |cut -d' ' -f1`
AWS_SECRET_ACCESS_KEY=`cat /tmp/garage.s3 |cut -d' ' -f2`
garage bucket deny --read --write eprouvette --key $AWS_ACCESS_KEY_ID
garage bucket delete --yes eprouvette
garage key delete --yes $AWS_ACCESS_KEY_ID
garage -c /tmp/config.1.toml bucket deny --read --write eprouvette --key $AWS_ACCESS_KEY_ID
garage -c /tmp/config.1.toml bucket delete --yes eprouvette
garage -c /tmp/config.1.toml key delete --yes $AWS_ACCESS_KEY_ID
echo "✅ Success"

8
src/api/error.rs
View file

@ -83,7 +83,9 @@ impl Error {
Error::NotFound => StatusCode::NOT_FOUND,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::InternalError(
GarageError::Timeout | GarageError::RemoteError(_) | GarageError::TooManyErrors(_),
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => StatusCode::SERVICE_UNAVAILABLE,
Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => {
StatusCode::INTERNAL_SERVER_ERROR
@ -98,7 +100,9 @@ impl Error {
Error::Forbidden(_) => "AccessDenied",
Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
Error::InternalError(
GarageError::Timeout | GarageError::RemoteError(_) | GarageError::TooManyErrors(_),
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => "ServiceUnavailable",
Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => "InternalError",
_ => "InvalidRequest",

6
src/garage/admin_rpc.rs → src/garage/admin.rs
View file

@ -349,11 +349,7 @@ impl AdminRpcHandler {
PRIO_NORMAL,
)
.await;
let is_err = match resp {
Ok(Ok(_)) => false,
_ => true,
};
if is_err {
if !matches!(resp, Ok(Ok(_))) {
failures.push(node);
}
}

657
src/garage/cli.rs
View file

@ -1,657 +0,0 @@
use std::collections::HashSet;
use std::path::PathBuf;
use serde::{Deserialize, Serialize};
use structopt::StructOpt;
use garage_util::data::Uuid;
use garage_util::error::Error;
use garage_util::time::*;
use garage_rpc::ring::*;
use garage_rpc::system::*;
use garage_rpc::*;
use garage_model::bucket_table::*;
use garage_model::key_table::*;
use crate::admin_rpc::*;
#[derive(StructOpt, Debug)]
pub enum Command {
/// Run Garage server
#[structopt(name = "server")]
Server(ServerOpt),
/// Get network status
#[structopt(name = "status")]
Status,
/// Garage node operations
#[structopt(name = "node")]
Node(NodeOperation),
/// Bucket operations
#[structopt(name = "bucket")]
Bucket(BucketOperation),
/// Key operations
#[structopt(name = "key")]
Key(KeyOperation),
/// Start repair of node data
#[structopt(name = "repair")]
Repair(RepairOpt),
/// Gather node statistics
#[structopt(name = "stats")]
Stats(StatsOpt),
}
#[derive(StructOpt, Debug)]
pub struct ServerOpt {
/// Configuration file
#[structopt(short = "c", long = "config", default_value = "./config.toml")]
pub config_file: PathBuf,
}
#[derive(StructOpt, Debug)]
pub enum NodeOperation {
/// Connect to Garage node that is currently isolated from the system
#[structopt(name = "connect")]
Connect(ConnectNodeOpt),
/// Configure Garage node
#[structopt(name = "configure")]
Configure(ConfigureNodeOpt),
/// Remove Garage node from cluster
#[structopt(name = "remove")]
Remove(RemoveNodeOpt),
}
#[derive(StructOpt, Debug)]
pub struct ConnectNodeOpt {
/// Node public key and address, in the format:
/// `<public key hexadecimal>@<ip or hostname>:<port>`
node: String,
}
#[derive(StructOpt, Debug)]
pub struct ConfigureNodeOpt {
/// Node to configure (prefix of hexadecimal node id)
node_id: String,
/// Location (zone or datacenter) of the node
#[structopt(short = "z", long = "zone")]
zone: Option<String>,
/// Capacity (in relative terms, use 1 to represent your smallest server)
#[structopt(short = "c", long = "capacity")]
capacity: Option<u32>,
/// Gateway-only node
#[structopt(short = "g", long = "gateway")]
gateway: bool,
/// Optional node tag
#[structopt(short = "t", long = "tag")]
tag: Option<String>,
/// Replaced node(s): list of node IDs that will be removed from the current cluster
#[structopt(long = "replace")]
replace: Vec<String>,
}
#[derive(StructOpt, Debug)]
pub struct RemoveNodeOpt {
/// Node to configure (prefix of hexadecimal node id)
node_id: String,
/// If this flag is not given, the node won't be removed
#[structopt(long = "yes")]
yes: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub enum BucketOperation {
/// List buckets
#[structopt(name = "list")]
List,
/// Get bucket info
#[structopt(name = "info")]
Info(BucketOpt),
/// Create bucket
#[structopt(name = "create")]
Create(BucketOpt),
/// Delete bucket
#[structopt(name = "delete")]
Delete(DeleteBucketOpt),
/// Allow key to read or write to bucket
#[structopt(name = "allow")]
Allow(PermBucketOpt),
/// Deny key from reading or writing to bucket
#[structopt(name = "deny")]
Deny(PermBucketOpt),
/// Expose as website or not
#[structopt(name = "website")]
Website(WebsiteOpt),
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct WebsiteOpt {
/// Create
#[structopt(long = "allow")]
pub allow: bool,
/// Delete
#[structopt(long = "deny")]
pub deny: bool,
/// Bucket name
pub bucket: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct BucketOpt {
/// Bucket name
pub name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct DeleteBucketOpt {
/// Bucket name
pub name: String,
/// If this flag is not given, the bucket won't be deleted
#[structopt(long = "yes")]
pub yes: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct PermBucketOpt {
/// Access key name or ID
#[structopt(long = "key")]
pub key_pattern: String,
/// Allow/deny read operations
#[structopt(long = "read")]
pub read: bool,
/// Allow/deny write operations
#[structopt(long = "write")]
pub write: bool,
/// Bucket name
pub bucket: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub enum KeyOperation {
/// List keys
#[structopt(name = "list")]
List,
/// Get key info
#[structopt(name = "info")]
Info(KeyOpt),
/// Create new key
#[structopt(name = "new")]
New(KeyNewOpt),
/// Rename key
#[structopt(name = "rename")]
Rename(KeyRenameOpt),
/// Delete key
#[structopt(name = "delete")]
Delete(KeyDeleteOpt),
/// Import key
#[structopt(name = "import")]
Import(KeyImportOpt),
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyOpt {
/// ID or name of the key
pub key_pattern: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyNewOpt {
/// Name of the key
#[structopt(long = "name", default_value = "Unnamed key")]
pub name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyRenameOpt {
/// ID or name of the key
pub key_pattern: String,
/// New name of the key
pub new_name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyDeleteOpt {
/// ID or name of the key
pub key_pattern: String,
/// Confirm deletion
#[structopt(long = "yes")]
pub yes: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyImportOpt {
/// Access key ID
pub key_id: String,
/// Secret access key
pub secret_key: String,
/// Key name
#[structopt(short = "n", default_value = "Imported key")]
pub name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Clone)]
pub struct RepairOpt {
/// Launch repair operation on all nodes
#[structopt(short = "a", long = "all-nodes")]
pub all_nodes: bool,
/// Confirm the launch of the repair operation
#[structopt(long = "yes")]
pub yes: bool,
#[structopt(subcommand)]
pub what: Option<RepairWhat>,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Eq, PartialEq, Clone)]
pub enum RepairWhat {
/// Only do a full sync of metadata tables
#[structopt(name = "tables")]
Tables,
/// Only repair (resync/rebalance) the set of stored blocks
#[structopt(name = "blocks")]
Blocks,
/// Only redo the propagation of object deletions to the version table (slow)
#[structopt(name = "versions")]
Versions,
/// Only redo the propagation of version deletions to the block ref table (extremely slow)
#[structopt(name = "block_refs")]
BlockRefs,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Clone)]
pub struct StatsOpt {
/// Gather statistics from all nodes
#[structopt(short = "a", long = "all-nodes")]
pub all_nodes: bool,
/// Gather detailed statistics (this can be long)
#[structopt(short = "d", long = "detailed")]
pub detailed: bool,
}
pub async fn cli_cmd(
cmd: Command,
system_rpc_endpoint: &Endpoint<SystemRpc, ()>,
admin_rpc_endpoint: &Endpoint<AdminRpc, ()>,
rpc_host: NodeID,
) -> Result<(), Error> {
match cmd {
Command::Status => cmd_status(system_rpc_endpoint, rpc_host).await,
Command::Node(NodeOperation::Connect(connect_opt)) => {
cmd_connect(system_rpc_endpoint, rpc_host, connect_opt).await
}
Command::Node(NodeOperation::Configure(configure_opt)) => {
cmd_configure(system_rpc_endpoint, rpc_host, configure_opt).await
}
Command::Node(NodeOperation::Remove(remove_opt)) => {
cmd_remove(system_rpc_endpoint, rpc_host, remove_opt).await
}
Command::Bucket(bo) => {
cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::BucketOperation(bo)).await
}
Command::Key(ko) => {
cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::KeyOperation(ko)).await
}
Command::Repair(ro) => {
cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::LaunchRepair(ro)).await
}
Command::Stats(so) => cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::Stats(so)).await,
_ => unreachable!(),
}
}
pub async fn cmd_status(rpc_cli: &Endpoint<SystemRpc, ()>, rpc_host: NodeID) -> Result<(), Error> {
let status = match rpc_cli
.call(&rpc_host, &SystemRpc::GetKnownNodes, PRIO_NORMAL)
.await??
{
SystemRpc::ReturnKnownNodes(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let config = match rpc_cli
.call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL)
.await??
{
SystemRpc::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
println!("Healthy nodes:");
let mut healthy_nodes = vec!["ID\tHostname\tAddress\tTag\tZone\tCapacity".to_string()];
for adv in status.iter().filter(|adv| adv.is_up) {
if let Some(cfg) = config.members.get(&adv.id) {
healthy_nodes.push(format!(
"{id:?}\t{host}\t{addr}\t[{tag}]\t{zone}\t{capacity}",
id = adv.id,
host = adv.status.hostname,
addr = adv.addr,
tag = cfg.tag,
zone = cfg.zone,
capacity = cfg.capacity_string(),
));
} else {
healthy_nodes.push(format!(
"{id:?}\t{h}\t{addr}\tUNCONFIGURED/REMOVED",
id = adv.id,
h = adv.status.hostname,
addr = adv.addr,
));
}
}
format_table(healthy_nodes);
let status_keys = status.iter().map(|adv| adv.id).collect::<HashSet<_>>();
let failure_case_1 = status.iter().any(|adv| !adv.is_up);
let failure_case_2 = config
.members
.iter()
.any(|(id, _)| !status_keys.contains(id));
if failure_case_1 || failure_case_2 {
println!("\nFailed nodes:");
let mut failed_nodes = vec!["ID\tHostname\tAddress\tTag\tZone\tCapacity\tLast seen".to_string()];
for adv in status.iter().filter(|adv| !adv.is_up) {
if let Some(cfg) = config.members.get(&adv.id) {
failed_nodes.push(format!(
"{id:?}\t{host}\t{addr}\t[{tag}]\t{zone}\t{capacity}\t{last_seen}s ago",
id = adv.id,
host = adv.status.hostname,
addr = adv.addr,
tag = cfg.tag,
zone = cfg.zone,
capacity = cfg.capacity_string(),
last_seen = (now_msec() - 0) / 1000,
));
}
}
for (id, cfg) in config.members.iter() {
if !status.iter().any(|adv| adv.id == *id) {
failed_nodes.push(format!(
"{id:?}\t??\t??\t[{tag}]\t{zone}\t{capacity}\tnever seen",
id = id,
tag = cfg.tag,
zone = cfg.zone,
capacity = cfg.capacity_string(),
));
}
}
format_table(failed_nodes);
}
Ok(())
}
pub async fn cmd_connect(
rpc_cli: &Endpoint<SystemRpc, ()>,
rpc_host: NodeID,
args: ConnectNodeOpt,
) -> Result<(), Error> {
match rpc_cli.call(&rpc_host, &SystemRpc::Connect(args.node), PRIO_NORMAL).await?? {
SystemRpc::Ok => {
println!("Success.");
Ok(())
}
r => {
Err(Error::BadRpc(format!("Unexpected response: {:?}", r)))
}
}
}
pub async fn cmd_configure(
rpc_cli: &Endpoint<SystemRpc, ()>,
rpc_host: NodeID,
args: ConfigureNodeOpt,
) -> Result<(), Error> {
let status = match rpc_cli
.call(&rpc_host, &SystemRpc::GetKnownNodes, PRIO_NORMAL)
.await??
{
SystemRpc::ReturnKnownNodes(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let added_node = find_matching_node(status.iter().map(|adv| adv.id), &args.node_id)?;
let mut config = match rpc_cli
.call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL)
.await??
{
SystemRpc::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
for replaced in args.replace.iter() {
let replaced_node = find_matching_node(config.members.keys().cloned(), replaced)?;
if config.members.remove(&replaced_node).is_none() {
return Err(Error::Message(format!(
"Cannot replace node {:?} as it is not in current configuration",
replaced_node
)));
}
}
if args.capacity.is_some() && args.gateway {
return Err(Error::Message(
"-c and -g are mutually exclusive, please configure node either with c>0 to act as a storage node or with -g to act as a gateway node".into()));
}
if args.capacity == Some(0) {
return Err(Error::Message("Invalid capacity value: 0".into()));
}
let new_entry = match config.members.get(&added_node) {
None => {
let capacity = match args.capacity {
Some(c) => Some(c),
None if args.gateway => None,
_ => return Err(Error::Message(
"Please specify a capacity with the -c flag, or set node explicitly as gateway with -g".into())),
};
NetworkConfigEntry {
zone: args.zone.expect("Please specifiy a zone with the -z flag"),
capacity,
tag: args.tag.unwrap_or_default(),
}
}
Some(old) => {
let capacity = match args.capacity {
Some(c) => Some(c),
None if args.gateway => None,
_ => old.capacity,
};
NetworkConfigEntry {
zone: args.zone.unwrap_or_else(|| old.zone.to_string()),
capacity,
tag: args.tag.unwrap_or_else(|| old.tag.to_string()),
}
}
};
config.members.insert(added_node, new_entry);
config.version += 1;
rpc_cli
.call(&rpc_host, &SystemRpc::AdvertiseConfig(config), PRIO_NORMAL)
.await??;
Ok(())
}
pub async fn cmd_remove(
rpc_cli: &Endpoint<SystemRpc, ()>,
rpc_host: NodeID,
args: RemoveNodeOpt,
) -> Result<(), Error> {
let mut config = match rpc_cli
.call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL)
.await??
{
SystemRpc::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let deleted_node = find_matching_node(config.members.keys().cloned(), &args.node_id)?;
if !args.yes {
return Err(Error::Message(format!(
"Add the flag --yes to really remove {:?} from the cluster",
deleted_node
)));
}
config.members.remove(&deleted_node);
config.version += 1;
rpc_cli
.call(&rpc_host, &SystemRpc::AdvertiseConfig(config), PRIO_NORMAL)
.await??;
Ok(())
}
pub async fn cmd_admin(
rpc_cli: &Endpoint<AdminRpc, ()>,
rpc_host: NodeID,
args: AdminRpc,
) -> Result<(), Error> {
match rpc_cli.call(&rpc_host, &args, PRIO_NORMAL).await?? {
AdminRpc::Ok(msg) => {
println!("{}", msg);
}
AdminRpc::BucketList(bl) => {
println!("List of buckets:");
for bucket in bl {
println!("{}", bucket);
}
}
AdminRpc::BucketInfo(bucket) => {
print_bucket_info(&bucket);
}
AdminRpc::KeyList(kl) => {
println!("List of keys:");
for key in kl {
println!("{}\t{}", key.0, key.1);
}
}
AdminRpc::KeyInfo(key) => {
print_key_info(&key);
}
r => {
error!("Unexpected response: {:?}", r);
}
}
Ok(())
}
// --- Utility functions ----
fn print_key_info(key: &Key) {
println!("Key name: {}", key.name.get());
println!("Key ID: {}", key.key_id);
println!("Secret key: {}", key.secret_key);
if key.deleted.get() {
println!("Key is deleted.");
} else {
println!("Authorized buckets:");
for (b, _, perm) in key.authorized_buckets.items().iter() {
println!("- {} R:{} W:{}", b, perm.allow_read, perm.allow_write);
}
}
}
fn print_bucket_info(bucket: &Bucket) {
println!("Bucket name: {}", bucket.name);
match bucket.state.get() {
BucketState::Deleted => println!("Bucket is deleted."),
BucketState::Present(p) => {
println!("Authorized keys:");
for (k, _, perm) in p.authorized_keys.items().iter() {
println!("- {} R:{} W:{}", k, perm.allow_read, perm.allow_write);
}
println!("Website access: {}", p.website.get());
}
};
}
fn format_table(data: Vec<String>) {
let data = data
.iter()
.map(|s| s.split('\t').collect::<Vec<_>>())
.collect::<Vec<_>>();
let columns = data.iter().map(|row| row.len()).fold(0, std::cmp::max);
let mut column_size = vec![0; columns];
let mut out = String::new();
for row in data.iter() {
for (i, col) in row.iter().enumerate() {
column_size[i] = std::cmp::max(column_size[i], col.chars().count());
}
}
for row in data.iter() {
for (col, col_len) in row[..row.len() - 1].iter().zip(column_size.iter()) {
out.push_str(col);
(0..col_len - col.chars().count() + 2).for_each(|_| out.push(' '));
}
out.push_str(&row[row.len() - 1]);
out.push('\n');
}
print!("{}", out);
}
pub fn find_matching_node(
cand: impl std::iter::Iterator<Item = Uuid>,
pattern: &str,
) -> Result<Uuid, Error> {
let mut candidates = vec![];
for c in cand {
if hex::encode(&c).starts_with(&pattern) {
candidates.push(c);
}
}
if candidates.len() != 1 {
Err(Error::Message(format!(
"{} nodes match '{}'",
candidates.len(),
pattern,
)))
} else {
Ok(candidates[0])
}
}

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use std::collections::HashSet;
use garage_util::error::*;
use garage_rpc::ring::*;
use garage_rpc::system::*;
use garage_rpc::*;
use crate::admin::*;
use crate::cli::*;
pub async fn cli_command_dispatch(
cmd: Command,
system_rpc_endpoint: &Endpoint<SystemRpc, ()>,
admin_rpc_endpoint: &Endpoint<AdminRpc, ()>,
rpc_host: NodeID,
) -> Result<(), Error> {
match cmd {
Command::Status => cmd_status(system_rpc_endpoint, rpc_host).await,
Command::Node(NodeOperation::Connect(connect_opt)) => {
cmd_connect(system_rpc_endpoint, rpc_host, connect_opt).await
}
Command::Node(NodeOperation::Configure(configure_opt)) => {
cmd_configure(system_rpc_endpoint, rpc_host, configure_opt).await
}
Command::Node(NodeOperation::Remove(remove_opt)) => {
cmd_remove(system_rpc_endpoint, rpc_host, remove_opt).await
}
Command::Bucket(bo) => {
cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::BucketOperation(bo)).await
}
Command::Key(ko) => {
cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::KeyOperation(ko)).await
}
Command::Repair(ro) => {
cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::LaunchRepair(ro)).await
}
Command::Stats(so) => cmd_admin(admin_rpc_endpoint, rpc_host, AdminRpc::Stats(so)).await,
_ => unreachable!(),
}
}
pub async fn cmd_status(rpc_cli: &Endpoint<SystemRpc, ()>, rpc_host: NodeID) -> Result<(), Error> {
let status = match rpc_cli
.call(&rpc_host, &SystemRpc::GetKnownNodes, PRIO_NORMAL)
.await??
{
SystemRpc::ReturnKnownNodes(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let config = match rpc_cli
.call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL)
.await??
{
SystemRpc::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
println!("==== HEALTHY NODES ====");
let mut healthy_nodes = vec!["ID\tHostname\tAddress\tTag\tZone\tCapacity".to_string()];
for adv in status.iter().filter(|adv| adv.is_up) {
if let Some(cfg) = config.members.get(&adv.id) {
healthy_nodes.push(format!(
"{id:?}\t{host}\t{addr}\t[{tag}]\t{zone}\t{capacity}",
id = adv.id,
host = adv.status.hostname,
addr = adv.addr,
tag = cfg.tag,
zone = cfg.zone,
capacity = cfg.capacity_string(),
));
} else {
healthy_nodes.push(format!(
"{id:?}\t{h}\t{addr}\tNO ROLE ASSIGNED",
id = adv.id,
h = adv.status.hostname,
addr = adv.addr,
));
}
}
format_table(healthy_nodes);
let status_keys = status.iter().map(|adv| adv.id).collect::<HashSet<_>>();
let failure_case_1 = status.iter().any(|adv| !adv.is_up);
let failure_case_2 = config
.members
.iter()
.any(|(id, _)| !status_keys.contains(id));
if failure_case_1 || failure_case_2 {
println!("\n==== FAILED NODES ====");
let mut failed_nodes =
vec!["ID\tHostname\tAddress\tTag\tZone\tCapacity\tLast seen".to_string()];
for adv in status.iter().filter(|adv| !adv.is_up) {
if let Some(cfg) = config.members.get(&adv.id) {
failed_nodes.push(format!(
"{id:?}\t{host}\t{addr}\t[{tag}]\t{zone}\t{capacity}\t{last_seen}",
id = adv.id,
host = adv.status.hostname,
addr = adv.addr,
tag = cfg.tag,
zone = cfg.zone,
capacity = cfg.capacity_string(),
last_seen = adv
.last_seen_secs_ago
.map(|s| format!("{}s ago", s))
.unwrap_or_else(|| "never seen".into()),
));
}
}
for (id, cfg) in config.members.iter() {
if !status_keys.contains(id) {
failed_nodes.push(format!(
"{id:?}\t??\t??\t[{tag}]\t{zone}\t{capacity}\tnever seen",
id = id,
tag = cfg.tag,
zone = cfg.zone,
capacity = cfg.capacity_string(),
));
}
}
format_table(failed_nodes);
}
Ok(())
}
pub async fn cmd_connect(
rpc_cli: &Endpoint<SystemRpc, ()>,
rpc_host: NodeID,
args: ConnectNodeOpt,
) -> Result<(), Error> {
match rpc_cli
.call(&rpc_host, &SystemRpc::Connect(args.node), PRIO_NORMAL)
.await??
{
SystemRpc::Ok => {
println!("Success.");
Ok(())
}
r => Err(Error::BadRpc(format!("Unexpected response: {:?}", r))),
}
}
pub async fn cmd_configure(
rpc_cli: &Endpoint<SystemRpc, ()>,
rpc_host: NodeID,
args: ConfigureNodeOpt,
) -> Result<(), Error> {
let status = match rpc_cli
.call(&rpc_host, &SystemRpc::GetKnownNodes, PRIO_NORMAL)
.await??
{
SystemRpc::ReturnKnownNodes(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let added_node = find_matching_node(status.iter().map(|adv| adv.id), &args.node_id)?;
let mut config = match rpc_cli
.call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL)
.await??
{
SystemRpc::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
for replaced in args.replace.iter() {
let replaced_node = find_matching_node(config.members.keys().cloned(), replaced)?;
if config.members.remove(&replaced_node).is_none() {
return Err(Error::Message(format!(
"Cannot replace node {:?} as it is not in current configuration",
replaced_node
)));
}
}
if args.capacity.is_some() && args.gateway {
return Err(Error::Message(
"-c and -g are mutually exclusive, please configure node either with c>0 to act as a storage node or with -g to act as a gateway node".into()));
}
if args.capacity == Some(0) {
return Err(Error::Message("Invalid capacity value: 0".into()));
}
let new_entry = match config.members.get(&added_node) {
None => {
let capacity = match args.capacity {
Some(c) => Some(c),
None if args.gateway => None,
_ => return Err(Error::Message(
"Please specify a capacity with the -c flag, or set node explicitly as gateway with -g".into())),
};
NetworkConfigEntry {
zone: args.zone.ok_or("Please specifiy a zone with the -z flag")?,
capacity,
tag: args.tag.unwrap_or_default(),
}
}
Some(old) => {
let capacity = match args.capacity {
Some(c) => Some(c),
None if args.gateway => None,
_ => old.capacity,
};
NetworkConfigEntry {
zone: args.zone.unwrap_or_else(|| old.zone.to_string()),
capacity,
tag: args.tag.unwrap_or_else(|| old.tag.to_string()),
}
}
};
config.members.insert(added_node, new_entry);
config.version += 1;
rpc_cli
.call(&rpc_host, &SystemRpc::AdvertiseConfig(config), PRIO_NORMAL)
.await??;
Ok(())
}
pub async fn cmd_remove(
rpc_cli: &Endpoint<SystemRpc, ()>,
rpc_host: NodeID,
args: RemoveNodeOpt,
) -> Result<(), Error> {
let mut config = match rpc_cli
.call(&rpc_host, &SystemRpc::PullConfig, PRIO_NORMAL)
.await??
{
SystemRpc::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let deleted_node = find_matching_node(config.members.keys().cloned(), &args.node_id)?;
if !args.yes {
return Err(Error::Message(format!(
"Add the flag --yes to really remove {:?} from the cluster",
deleted_node
)));
}
config.members.remove(&deleted_node);
config.version += 1;
rpc_cli
.call(&rpc_host, &SystemRpc::AdvertiseConfig(config), PRIO_NORMAL)
.await??;
Ok(())
}
pub async fn cmd_admin(
rpc_cli: &Endpoint<AdminRpc, ()>,
rpc_host: NodeID,
args: AdminRpc,
) -> Result<(), Error> {
match rpc_cli.call(&rpc_host, &args, PRIO_NORMAL).await?? {
AdminRpc::Ok(msg) => {
println!("{}", msg);
}
AdminRpc::BucketList(bl) => {
println!("List of buckets:");
for bucket in bl {
println!("{}", bucket);
}
}
AdminRpc::BucketInfo(bucket) => {
print_bucket_info(&bucket);
}
AdminRpc::KeyList(kl) => {
println!("List of keys:");
for key in kl {
println!("{}\t{}", key.0, key.1);
}
}
AdminRpc::KeyInfo(key) => {
print_key_info(&key);
}
r => {
error!("Unexpected response: {:?}", r);
}
}
Ok(())
}
// --- Utility functions ----

65
src/garage/cli/init.rs Normal file
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use std::path::PathBuf;
use garage_util::error::*;
pub const READ_KEY_ERROR: &str = "Unable to read node key. It will be generated by your garage node the first time is it launched. Ensure that your garage node is currently running. (The node key is supposed to be stored in your metadata directory.)";
pub fn node_id_command(config_file: PathBuf, quiet: bool) -> Result<(), Error> {
let config = garage_util::config::read_config(config_file.clone()).err_context(format!(
"Unable to read configuration file {}",
config_file.to_string_lossy(),
))?;
let node_id =
garage_rpc::system::read_node_id(&config.metadata_dir).err_context(READ_KEY_ERROR)?;
let idstr = if let Some(addr) = config.rpc_public_addr {
let idstr = format!("{}@{}", hex::encode(&node_id), addr);
println!("{}", idstr);
idstr
} else {
let idstr = hex::encode(&node_id);
println!("{}", idstr);
if !quiet {
eprintln!("WARNING: I don't know the public address to reach this node.");
eprintln!("In all of the instructions below, replace 127.0.0.1:3901 by the appropriate address and port.");
}
format!("{}@127.0.0.1:3901", idstr)
};
if !quiet {
eprintln!();
eprintln!(
"To instruct a node to connect to this node, run the following command on that node:"
);
eprintln!(" garage [-c <config file path>] node connect {}", idstr);
eprintln!();
eprintln!("Or instruct them to connect from here by running:");
eprintln!(
" garage -c {} -h <remote node> node connect {}",
config_file.to_string_lossy(),
idstr
);
eprintln!(
"where <remote_node> is their own node identifier in the format: <pubkey>@<ip>:<port>"
);
eprintln!();
eprintln!("This node identifier can also be added as a bootstrap node in other node's garage.toml files:");
eprintln!(" bootstrap_peers = [");
eprintln!(" \"{}\",", idstr);
eprintln!(" ...");
eprintln!(" ]");
eprintln!();
eprintln!(
r#"Security notice: Garage's intra-cluster communications are secured primarily by the shared
secret value rpc_secret. However, an attacker that knows rpc_secret (for example if it
leaks) cannot connect if they do not know any of the identifiers of the nodes in the
cluster. It is thus a good security measure to try to keep them secret if possible.
"#
);
}
Ok(())
}

9
src/garage/cli/mod.rs Normal file
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pub(crate) mod cmd;
pub(crate) mod init;
pub(crate) mod structs;
pub(crate) mod util;
pub(crate) use cmd::*;
pub(crate) use init::*;
pub(crate) use structs::*;
pub(crate) use util::*;

296
src/garage/cli/structs.rs Normal file
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use serde::{Deserialize, Serialize};
use structopt::StructOpt;
#[derive(StructOpt, Debug)]
pub enum Command {
/// Run Garage server
#[structopt(name = "server")]
Server,
/// Print identifier (public key) of this garage node.
/// Generates a new keypair if necessary.
#[structopt(name = "node-id")]
NodeId(NodeIdOpt),
/// Get network status
#[structopt(name = "status")]
Status,
/// Garage node operations
#[structopt(name = "node")]
Node(NodeOperation),
/// Bucket operations
#[structopt(name = "bucket")]
Bucket(BucketOperation),
/// Key operations
#[structopt(name = "key")]
Key(KeyOperation),
/// Start repair of node data
#[structopt(name = "repair")]
Repair(RepairOpt),
/// Gather node statistics
#[structopt(name = "stats")]
Stats(StatsOpt),
}
#[derive(StructOpt, Debug)]
pub enum NodeOperation {
/// Connect to Garage node that is currently isolated from the system
#[structopt(name = "connect")]
Connect(ConnectNodeOpt),
/// Configure Garage node
#[structopt(name = "configure")]
Configure(ConfigureNodeOpt),
/// Remove Garage node from cluster
#[structopt(name = "remove")]
Remove(RemoveNodeOpt),
}
#[derive(StructOpt, Debug)]
pub struct NodeIdOpt {
/// Do not print usage instructions to stderr
#[structopt(short = "q", long = "quiet")]
pub(crate) quiet: bool,
}
#[derive(StructOpt, Debug)]
pub struct ConnectNodeOpt {
/// Node public key and address, in the format:
/// `<public key hexadecimal>@<ip or hostname>:<port>`
pub(crate) node: String,
}
#[derive(StructOpt, Debug)]
pub struct ConfigureNodeOpt {
/// Node to configure (prefix of hexadecimal node id)
pub(crate) node_id: String,
/// Location (zone or datacenter) of the node
#[structopt(short = "z", long = "zone")]
pub(crate) zone: Option<String>,
/// Capacity (in relative terms, use 1 to represent your smallest server)
#[structopt(short = "c", long = "capacity")]
pub(crate) capacity: Option<u32>,
/// Gateway-only node
#[structopt(short = "g", long = "gateway")]
pub(crate) gateway: bool,
/// Optional node tag
#[structopt(short = "t", long = "tag")]
pub(crate) tag: Option<String>,
/// Replaced node(s): list of node IDs that will be removed from the current cluster
#[structopt(long = "replace")]
pub(crate) replace: Vec<String>,
}
#[derive(StructOpt, Debug)]
pub struct RemoveNodeOpt {
/// Node to configure (prefix of hexadecimal node id)
pub(crate) node_id: String,
/// If this flag is not given, the node won't be removed
#[structopt(long = "yes")]
pub(crate) yes: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub enum BucketOperation {
/// List buckets
#[structopt(name = "list")]
List,
/// Get bucket info
#[structopt(name = "info")]
Info(BucketOpt),
/// Create bucket
#[structopt(name = "create")]
Create(BucketOpt),
/// Delete bucket
#[structopt(name = "delete")]
Delete(DeleteBucketOpt),
/// Allow key to read or write to bucket
#[structopt(name = "allow")]
Allow(PermBucketOpt),
/// Deny key from reading or writing to bucket
#[structopt(name = "deny")]
Deny(PermBucketOpt),
/// Expose as website or not
#[structopt(name = "website")]
Website(WebsiteOpt),
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct WebsiteOpt {
/// Create
#[structopt(long = "allow")]
pub allow: bool,
/// Delete
#[structopt(long = "deny")]
pub deny: bool,
/// Bucket name
pub bucket: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct BucketOpt {
/// Bucket name
pub name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct DeleteBucketOpt {
/// Bucket name
pub name: String,
/// If this flag is not given, the bucket won't be deleted
#[structopt(long = "yes")]
pub yes: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct PermBucketOpt {
/// Access key name or ID
#[structopt(long = "key")]
pub key_pattern: String,
/// Allow/deny read operations
#[structopt(long = "read")]
pub read: bool,
/// Allow/deny write operations
#[structopt(long = "write")]
pub write: bool,
/// Bucket name
pub bucket: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub enum KeyOperation {
/// List keys
#[structopt(name = "list")]
List,
/// Get key info
#[structopt(name = "info")]
Info(KeyOpt),
/// Create new key
#[structopt(name = "new")]
New(KeyNewOpt),
/// Rename key
#[structopt(name = "rename")]
Rename(KeyRenameOpt),
/// Delete key
#[structopt(name = "delete")]
Delete(KeyDeleteOpt),
/// Import key
#[structopt(name = "import")]
Import(KeyImportOpt),
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyOpt {
/// ID or name of the key
pub key_pattern: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyNewOpt {
/// Name of the key
#[structopt(long = "name", default_value = "Unnamed key")]
pub name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyRenameOpt {
/// ID or name of the key
pub key_pattern: String,
/// New name of the key
pub new_name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyDeleteOpt {
/// ID or name of the key
pub key_pattern: String,
/// Confirm deletion
#[structopt(long = "yes")]
pub yes: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug)]
pub struct KeyImportOpt {
/// Access key ID
pub key_id: String,
/// Secret access key
pub secret_key: String,
/// Key name
#[structopt(short = "n", default_value = "Imported key")]
pub name: String,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Clone)]
pub struct RepairOpt {
/// Launch repair operation on all nodes
#[structopt(short = "a", long = "all-nodes")]
pub all_nodes: bool,
/// Confirm the launch of the repair operation
#[structopt(long = "yes")]
pub yes: bool,
#[structopt(subcommand)]
pub what: Option<RepairWhat>,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Eq, PartialEq, Clone)]
pub enum RepairWhat {
/// Only do a full sync of metadata tables
#[structopt(name = "tables")]
Tables,
/// Only repair (resync/rebalance) the set of stored blocks
#[structopt(name = "blocks")]
Blocks,
/// Only redo the propagation of object deletions to the version table (slow)
#[structopt(name = "versions")]
Versions,
/// Only redo the propagation of version deletions to the block ref table (extremely slow)
#[structopt(name = "block_refs")]
BlockRefs,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Clone)]
pub struct StatsOpt {
/// Gather statistics from all nodes
#[structopt(short = "a", long = "all-nodes")]
pub all_nodes: bool,
/// Gather detailed statistics (this can be long)
#[structopt(short = "d", long = "detailed")]
pub detailed: bool,
}

83
src/garage/cli/util.rs Normal file
View file

@ -0,0 +1,83 @@
use garage_util::data::Uuid;
use garage_util::error::*;
use garage_model::bucket_table::*;
use garage_model::key_table::*;
pub fn print_key_info(key: &Key) {
println!("Key name: {}", key.name.get());
println!("Key ID: {}", key.key_id);
println!("Secret key: {}", key.secret_key);
if key.deleted.get() {
println!("Key is deleted.");
} else {
println!("Authorized buckets:");
for (b, _, perm) in key.authorized_buckets.items().iter() {
println!("- {} R:{} W:{}", b, perm.allow_read, perm.allow_write);
}
}
}
pub fn print_bucket_info(bucket: &Bucket) {
println!("Bucket name: {}", bucket.name);
match bucket.state.get() {
BucketState::Deleted => println!("Bucket is deleted."),
BucketState::Present(p) => {
println!("Authorized keys:");
for (k, _, perm) in p.authorized_keys.items().iter() {
println!("- {} R:{} W:{}", k, perm.allow_read, perm.allow_write);
}
println!("Website access: {}", p.website.get());
}
};
}
pub fn format_table(data: Vec<String>) {
let data = data
.iter()
.map(|s| s.split('\t').collect::<Vec<_>>())
.collect::<Vec<_>>();
let columns = data.iter().map(|row| row.len()).fold(0, std::cmp::max);
let mut column_size = vec![0; columns];
let mut out = String::new();
for row in data.iter() {
for (i, col) in row.iter().enumerate() {
column_size[i] = std::cmp::max(column_size[i], col.chars().count());
}
}
for row in data.iter() {
for (col, col_len) in row[..row.len() - 1].iter().zip(column_size.iter()) {
out.push_str(col);
(0..col_len - col.chars().count() + 2).for_each(|_| out.push(' '));
}
out.push_str(&row[row.len() - 1]);
out.push('\n');
}
print!("{}", out);
}
pub fn find_matching_node(
cand: impl std::iter::Iterator<Item = Uuid>,
pattern: &str,
) -> Result<Uuid, Error> {
let mut candidates = vec![];
for c in cand {
if hex::encode(&c).starts_with(&pattern) {
candidates.push(c);
}
}
if candidates.len() != 1 {
Err(Error::Message(format!(
"{} nodes match '{}'",
candidates.len(),
pattern,
)))
} else {
Ok(candidates[0])
}
}

68
src/garage/main.rs
View file

@ -4,22 +4,24 @@
#[macro_use]
extern crate log;
mod admin_rpc;
mod admin;
mod cli;
mod repair;
mod server;
use std::path::PathBuf;
use structopt::StructOpt;
use netapp::util::parse_peer_addr;
use netapp::util::parse_and_resolve_peer_addr;
use netapp::NetworkKey;
use garage_util::error::Error;
use garage_util::error::*;
use garage_rpc::system::*;
use garage_rpc::*;
use admin_rpc::*;
use admin::*;
use cli::*;
#[derive(StructOpt, Debug)]
@ -34,6 +36,10 @@ struct Opt {
#[structopt(short = "s", long = "rpc-secret")]
pub rpc_secret: Option<String>,
/// Configuration file (garage.toml)
#[structopt(short = "c", long = "config", default_value = "/etc/garage.toml")]
pub config_file: PathBuf,
#[structopt(subcommand)]
cmd: Command,
}
@ -45,38 +51,68 @@ async fn main() {
let opt = Opt::from_args();
let res = if let Command::Server(server_opt) = opt.cmd {
let res = match opt.cmd {
Command::Server => {
// Abort on panic (same behavior as in Go)
std::panic::set_hook(Box::new(|panic_info| {
error!("{}", panic_info.to_string());
std::process::abort();
}));
server::run_server(server_opt.config_file).await
} else {
cli_command(opt).await
server::run_server(opt.config_file).await
}
Command::NodeId(node_id_opt) => node_id_command(opt.config_file, node_id_opt.quiet),
_ => cli_command(opt).await,
};
if let Err(e) = res {
error!("{}", e);
eprintln!("Error: {}", e);
std::process::exit(1);
}
}
async fn cli_command(opt: Opt) -> Result<(), Error> {
let net_key_hex_str = &opt.rpc_secret.expect("No RPC secret provided");
let config = if opt.rpc_secret.is_none() || opt.rpc_host.is_none() {
Some(garage_util::config::read_config(opt.config_file.clone())
.err_context(format!("Unable to read configuration file {}. Configuration file is needed because -h or -s is not provided on the command line.", opt.config_file.to_string_lossy()))?)
} else {
None
};
// Find and parse network RPC secret
let net_key_hex_str = opt
.rpc_secret
.as_ref()
.or_else(|| config.as_ref().map(|c| &c.rpc_secret))
.ok_or("No RPC secret provided")?;
let network_key = NetworkKey::from_slice(
&hex::decode(net_key_hex_str).expect("Invalid RPC secret key (bad hex)")[..],
&hex::decode(net_key_hex_str).err_context("Invalid RPC secret key (bad hex)")?[..],
)
.expect("Invalid RPC secret provided (wrong length)");
.ok_or("Invalid RPC secret provided (wrong length)")?;
// Generate a temporary keypair for our RPC client
let (_pk, sk) = sodiumoxide::crypto::sign::ed25519::gen_keypair();
let netapp = NetApp::new(network_key, sk);
let (id, addr) =
parse_peer_addr(&opt.rpc_host.expect("No RPC host provided")).expect("Invalid RPC host");
netapp.clone().try_connect(addr, id).await?;
// Find and parse the address of the target host
let (id, addr) = if let Some(h) = opt.rpc_host {
let (id, addrs) = parse_and_resolve_peer_addr(&h).ok_or_else(|| format!("Invalid RPC remote node identifier: {}. Expected format is <pubkey>@<IP or hostname>:<port>.", h))?;
(id, addrs[0])
} else if let Some(a) = config.as_ref().map(|c| c.rpc_public_addr).flatten() {
let node_id = garage_rpc::system::read_node_id(&config.unwrap().metadata_dir)
.err_context(READ_KEY_ERROR)?;
(node_id, a)
} else {
return Err(Error::Message("No RPC host provided".into()));
};
// Connect to target host
netapp.clone().try_connect(addr, id).await
.err_context("Unable to connect to destination RPC host. Check that you are using the same value of rpc_secret as them, and that you have their correct public key.")?;
let system_rpc_endpoint = netapp.endpoint::<SystemRpc, ()>(SYSTEM_RPC_PATH.into());
let admin_rpc_endpoint = netapp.endpoint::<AdminRpc, ()>(ADMIN_RPC_PATH.into());
cli_cmd(opt.cmd, &system_rpc_endpoint, &admin_rpc_endpoint, id).await
cli_command_dispatch(opt.cmd, &system_rpc_endpoint, &admin_rpc_endpoint, id).await
}

2
src/garage/server.rs
View file

@ -10,7 +10,7 @@ use garage_api::run_api_server;
use garage_model::garage::Garage;
use garage_web::run_web_server;
use crate::admin_rpc::*;
use crate::admin::*;
async fn wait_from(mut chan: watch::Receiver<bool>) {
while !*chan.borrow() {

4
src/model/block.rs
View file

@ -98,7 +98,9 @@ impl BlockManager {
.open_tree("block_local_resync_queue")
.expect("Unable to open block_local_resync_queue tree");
let endpoint = system.netapp.endpoint(format!("garage_model/block.rs/Rpc"));
let endpoint = system
.netapp
.endpoint("garage_model/block.rs/Rpc".to_string());
let block_manager = Arc::new(Self {
replication,

7
src/model/garage.rs
View file

@ -57,14 +57,9 @@ impl Garage {
info!("Initialize membership management system...");
let system = System::new(
network_key,
config.metadata_dir.clone(),
background.clone(),
replication_mode.replication_factor(),
config.rpc_bind_addr,
config.rpc_public_addr,
config.bootstrap_peers.clone(),
config.consul_host.clone(),
config.consul_service_name.clone(),
&config,
);
let data_rep_param = TableShardedReplication {

4
src/rpc/rpc_helper.rs
View file

@ -14,8 +14,8 @@ pub use netapp::proto::*;
pub use netapp::{NetApp, NodeID};
use garage_util::background::BackgroundRunner;
use garage_util::error::Error;
use garage_util::data::Uuid;
use garage_util::error::Error;
const DEFAULT_TIMEOUT: Duration = Duration::from_secs(10);
@ -203,7 +203,7 @@ impl RpcHelper {
Ok(results)
} else {
let errors = errors.iter().map(|e| format!("{}", e)).collect::<Vec<_>>();
Err(Error::TooManyErrors(errors))
Err(Error::Quorum(quorum, results.len(), to.len(), errors))
}
}
}

139
src/rpc/system.rs
View file

@ -2,9 +2,9 @@
use std::collections::HashMap;
use std::io::{Read, Write};
use std::net::SocketAddr;
use std::path::{Path, PathBuf};
use std::path::Path;
use std::sync::{Arc, RwLock};
use std::time::Duration;
use std::time::{Duration, Instant};
use arc_swap::ArcSwap;
use async_trait::async_trait;
@ -18,12 +18,13 @@ use tokio::sync::Mutex;
use netapp::endpoint::{Endpoint, EndpointHandler};
use netapp::peering::fullmesh::FullMeshPeeringStrategy;
use netapp::proto::*;
use netapp::{NetApp, NetworkKey, NodeID, NodeKey};
use netapp::util::parse_and_resolve_peer_addr;
use netapp::{NetApp, NetworkKey, NodeID, NodeKey};
use garage_util::background::BackgroundRunner;
use garage_util::config::Config;
use garage_util::data::Uuid;
use garage_util::error::Error;
use garage_util::error::*;
use garage_util::persister::Persister;
use garage_util::time::*;
@ -38,6 +39,8 @@ const PING_TIMEOUT: Duration = Duration::from_secs(2);
/// RPC endpoint used for calls related to membership
pub const SYSTEM_RPC_PATH: &str = "garage_rpc/membership.rs/SystemRpc";
pub const CONNECT_ERROR_MESSAGE: &str = "Error establishing RPC connection to remote node. This can happen if the remote node is not reachable on the network, but also if the two nodes are not configured with the same rpc_secret";
/// RPC messages related to membership
#[derive(Debug, Serialize, Deserialize, Clone)]
pub enum SystemRpc {
@ -109,10 +112,27 @@ pub struct KnownNodeInfo {
pub id: Uuid,
pub addr: SocketAddr,
pub is_up: bool,
pub last_seen_secs_ago: Option<u64>,
pub status: NodeStatus,
}
fn gen_node_key(metadata_dir: &Path) -> Result<NodeKey, Error> {
pub fn read_node_id(metadata_dir: &Path) -> Result<NodeID, Error> {
let mut pubkey_file = metadata_dir.to_path_buf();
pubkey_file.push("node_key.pub");
let mut f = std::fs::File::open(pubkey_file.as_path())?;
let mut d = vec![];
f.read_to_end(&mut d)?;
if d.len() != 32 {
return Err(Error::Message("Corrupt node_key.pub file".to_string()));
}
let mut key = [0u8; 32];
key.copy_from_slice(&d[..]);
Ok(NodeID::from_slice(&key[..]).unwrap())
}
pub fn gen_node_key(metadata_dir: &Path) -> Result<NodeKey, Error> {
let mut key_file = metadata_dir.to_path_buf();
key_file.push("node_key");
if key_file.as_path().exists() {
@ -127,10 +147,30 @@ fn gen_node_key(metadata_dir: &Path) -> Result<NodeKey, Error> {
key.copy_from_slice(&d[..]);
Ok(NodeKey::from_slice(&key[..]).unwrap())
} else {
let (_, key) = ed25519::gen_keypair();
if !metadata_dir.exists() {
info!("Metadata directory does not exist, creating it.");
std::fs::create_dir(&metadata_dir)?;
}
info!("Generating new node key pair.");
let (pubkey, key) = ed25519::gen_keypair();
{
use std::os::unix::fs::PermissionsExt;
let mut f = std::fs::File::create(key_file.as_path())?;
let mut perm = f.metadata()?.permissions();
perm.set_mode(0o600);
std::fs::set_permissions(key_file.as_path(), perm)?;
f.write_all(&key[..])?;
}
{
let mut pubkey_file = metadata_dir.to_path_buf();
pubkey_file.push("node_key.pub");
let mut f2 = std::fs::File::create(pubkey_file.as_path())?;
f2.write_all(&pubkey[..])?;
}
Ok(key)
}
}
@ -139,20 +179,16 @@ impl System {
/// Create this node's membership manager
pub fn new(
network_key: NetworkKey,
metadata_dir: PathBuf,
background: Arc<BackgroundRunner>,
replication_factor: usize,
rpc_listen_addr: SocketAddr,
rpc_public_address: Option<SocketAddr>,
bootstrap_peers: Vec<(NodeID, SocketAddr)>,
consul_host: Option<String>,
consul_service_name: Option<String>,
config: &Config,
) -> Arc<Self> {
let node_key = gen_node_key(&metadata_dir).expect("Unable to read or generate node ID");
let node_key =
gen_node_key(&config.metadata_dir).expect("Unable to read or generate node ID");
info!("Node public key: {}", hex::encode(&node_key.public_key()));
let persist_config = Persister::new(&metadata_dir, "network_config");
let persist_peer_list = Persister::new(&metadata_dir, "peer_list");
let persist_config = Persister::new(&config.metadata_dir, "network_config");
let persist_peer_list = Persister::new(&config.metadata_dir, "peer_list");
let net_config = match persist_config.load() {
Ok(x) => x,
@ -169,14 +205,14 @@ impl System {
hostname: gethostname::gethostname()
.into_string()
.unwrap_or_else(|_| "<invalid utf-8>".to_string()),
replication_factor: replication_factor,
replication_factor,
config_version: net_config.version,
};
let ring = Ring::new(net_config, replication_factor);
let (update_ring, ring) = watch::channel(Arc::new(ring));
if let Some(addr) = rpc_public_address {
if let Some(addr) = config.rpc_public_addr {
println!("{}@{}", hex::encode(&node_key.public_key()), addr);
} else {
println!("{}", hex::encode(&node_key.public_key()));
@ -185,8 +221,8 @@ impl System {
let netapp = NetApp::new(network_key, node_key);
let fullmesh = FullMeshPeeringStrategy::new(
netapp.clone(),
bootstrap_peers.clone(),
rpc_public_address,
config.bootstrap_peers.clone(),
config.rpc_public_addr,
);
let system_endpoint = netapp.endpoint(SYSTEM_RPC_PATH.into());
@ -200,19 +236,19 @@ impl System {
netapp: netapp.clone(),
fullmesh: fullmesh.clone(),
rpc: RpcHelper {
fullmesh: fullmesh.clone(),
fullmesh,
background: background.clone(),
},
system_endpoint,
replication_factor,
rpc_listen_addr,
rpc_public_addr: rpc_public_address,
bootstrap_peers,
consul_host,
consul_service_name,
rpc_listen_addr: config.rpc_bind_addr,
rpc_public_addr: config.rpc_public_addr,
bootstrap_peers: config.bootstrap_peers.clone(),
consul_host: config.consul_host.clone(),
consul_service_name: config.consul_service_name.clone(),
ring,
update_ring: Mutex::new(update_ring),
background: background.clone(),
background,
});
sys.system_endpoint.set_handler(sys.clone());
sys
@ -255,7 +291,7 @@ impl System {
rpc_public_addr,
)
.await
.map_err(|e| Error::Message(format!("Error while publishing Consul service: {}", e)))
.err_context("Error while publishing Consul service")
}
/// Save network configuration to disc
@ -277,18 +313,31 @@ impl System {
}
async fn handle_connect(&self, node: &str) -> Result<SystemRpc, Error> {
let (pubkey, addrs) = parse_and_resolve_peer_addr(node)
.ok_or_else(|| Error::Message(format!("Unable to parse or resolve node specification: {}", node)))?;
let (pubkey, addrs) = parse_and_resolve_peer_addr(node).ok_or_else(|| {
Error::Message(format!(
"Unable to parse or resolve node specification: {}",
node
))
})?;
let mut errors = vec![];
for ip in addrs.iter() {
match self.netapp.clone().try_connect(*ip, pubkey).await {
match self
.netapp
.clone()
.try_connect(*ip, pubkey)
.await
.err_context(CONNECT_ERROR_MESSAGE)
{
Ok(()) => return Ok(SystemRpc::Ok),
Err(e) => {
errors.push((*ip, e));
}
}
}
return Err(Error::Message(format!("Could not connect to specified peers. Errors: {:?}", errors)));
return Err(Error::Message(format!(
"Could not connect to specified peers. Errors: {:?}",
errors
)));
}
fn handle_pull_config(&self) -> SystemRpc {
@ -298,21 +347,24 @@ impl System {
fn handle_get_known_nodes(&self) -> SystemRpc {
let node_status = self.node_status.read().unwrap();
let known_nodes =
self.fullmesh
let known_nodes = self
.fullmesh
.get_peer_list()
.iter()
.map(|n| KnownNodeInfo {
id: n.id.into(),
addr: n.addr,
is_up: n.is_up(),
status: node_status.get(&n.id.into()).cloned().map(|(_, st)| st).unwrap_or(
NodeStatus {
last_seen_secs_ago: n.last_seen.map(|t| (Instant::now() - t).as_secs()),
status: node_status
.get(&n.id.into())
.cloned()
.map(|(_, st)| st)
.unwrap_or(NodeStatus {
hostname: "?".to_string(),
replication_factor: 0,
config_version: 0,
},
),
}),
})
.collect::<Vec<_>>();
SystemRpc::ReturnKnownNodes(known_nodes)
@ -361,14 +413,14 @@ impl System {
drop(update_ring);
let self2 = self.clone();
let adv2 = adv.clone();
let adv = adv.clone();
self.background.spawn_cancellable(async move {
self2
.rpc
.broadcast(
&self2.system_endpoint,
SystemRpc::AdvertiseConfig(adv2),
RequestStrategy::with_priority(PRIO_NORMAL),
SystemRpc::AdvertiseConfig(adv),
RequestStrategy::with_priority(PRIO_HIGH),
)
.await;
Ok(())
@ -439,7 +491,12 @@ impl System {
}
for (node_id, node_addr) in ping_list {
tokio::spawn(self.netapp.clone().try_connect(node_addr, node_id));
tokio::spawn(
self.netapp
.clone()
.try_connect(node_addr, node_id)
.map(|r| r.err_context(CONNECT_ERROR_MESSAGE)),
);
}
}

6
src/table/replication/fullcopy.rs
View file

@ -28,11 +28,7 @@ impl TableReplication for TableFullReplication {
fn write_nodes(&self, _hash: &Hash) -> Vec<Uuid> {
let ring = self.system.ring.borrow();
ring.config
.members
.keys()
.cloned()
.collect::<Vec<_>>()
ring.config.members.keys().cloned().collect::<Vec<_>>()
}
fn write_quorum(&self) -> usize {
let nmembers = self.system.ring.borrow().config.members.len();

16
src/util/config.rs
View file

@ -6,8 +6,8 @@ use std::path::PathBuf;
use serde::de::Error as SerdeError;
use serde::{de, Deserialize};
use netapp::NodeID;
use netapp::util::parse_and_resolve_peer_addr;
use netapp::NodeID;
use crate::error::Error;
@ -46,10 +46,6 @@ pub struct Config {
/// Consul service name to use
pub consul_service_name: Option<String>,
/// Max number of concurrent RPC request
#[serde(default = "default_max_concurrent_rpc_requests")]
pub max_concurrent_rpc_requests: usize,
/// Sled cache size, in bytes
#[serde(default = "default_sled_cache_capacity")]
pub sled_cache_capacity: u64,
@ -91,9 +87,6 @@ fn default_sled_cache_capacity() -> u64 {
fn default_sled_flush_every_ms() -> u64 {
2000
}
fn default_max_concurrent_rpc_requests() -> usize {
12
}
fn default_block_size() -> usize {
1048576
}
@ -117,10 +110,11 @@ where
let mut ret = vec![];
for peer in <Vec<&str>>::deserialize(deserializer)? {
let (pubkey, addrs) = parse_and_resolve_peer_addr(peer)
.ok_or_else(|| D::Error::custom(format!("Unable to parse or resolve peer: {}", peer)))?;
let (pubkey, addrs) = parse_and_resolve_peer_addr(peer).ok_or_else(|| {
D::Error::custom(format!("Unable to parse or resolve peer: {}", peer))
})?;
for ip in addrs {
ret.push((pubkey.clone(), ip));
ret.push((pubkey, ip));
}
}

6
src/util/data.rs
View file

@ -93,9 +93,9 @@ impl From<netapp::NodeID> for FixedBytes32 {
}
}
impl Into<netapp::NodeID> for FixedBytes32 {
fn into(self) -> netapp::NodeID {
netapp::NodeID::from_slice(self.as_slice()).unwrap()
impl From<FixedBytes32> for netapp::NodeID {
fn from(bytes: FixedBytes32) -> netapp::NodeID {
netapp::NodeID::from_slice(bytes.as_slice()).unwrap()
}
}

39
src/util/error.rs
View file

@ -47,8 +47,14 @@ pub enum Error {
#[error(display = "Timeout")]
Timeout,
#[error(display = "Too many errors: {:?}", _0)]
TooManyErrors(Vec<String>),
#[error(
display = "Could not reach quorum of {}. {} of {} request succeeded, others returned errors: {:?}",
_0,
_1,
_2,
_3
)]
Quorum(usize, usize, usize, Vec<String>),
#[error(display = "Bad RPC: {}", _0)]
BadRpc(String),
@ -81,6 +87,35 @@ impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
}
}
impl<'a> From<&'a str> for Error {
fn from(v: &'a str) -> Error {
Error::Message(v.to_string())
}
}
impl From<String> for Error {
fn from(v: String) -> Error {
Error::Message(v)
}
}
pub trait ErrorContext<T, E> {
fn err_context<C: std::borrow::Borrow<str>>(self, ctx: C) -> Result<T, Error>;
}
impl<T, E> ErrorContext<T, E> for Result<T, E>
where
E: std::fmt::Display,
{
#[inline]
fn err_context<C: std::borrow::Borrow<str>>(self, ctx: C) -> Result<T, Error> {
match self {
Ok(x) => Ok(x),
Err(e) => Err(Error::Message(format!("{}\n{}", ctx.borrow(), e))),
}
}
}
// Custom serialization for our error type, for use in RPC.
// Errors are serialized as a string of their Display representation.
// Upon deserialization, they all become a RemoteError with the

4
src/web/error.rs
View file

@ -39,7 +39,9 @@ impl Error {
Error::NotFound => StatusCode::NOT_FOUND,
Error::ApiError(e) => e.http_status_code(),
Error::InternalError(
GarageError::Timeout | GarageError::RemoteError(_) | GarageError::TooManyErrors(_),
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => StatusCode::SERVICE_UNAVAILABLE,
Error::InternalError(_) => StatusCode::INTERNAL_SERVER_ERROR,
_ => StatusCode::BAD_REQUEST,