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Update documentation: real_world.md

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169
doc/book/src/cookbook/real_world.md
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@ -16,10 +16,7 @@ To run a real-world deployment, make sure you the following conditions are met:
- You have at least three machines with sufficient storage space available. - You have at least three machines with sufficient storage space available.
- Each machine has a public IP address which is reachable by other machines. - 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 Running behind a NAT is likely to be possible but hasn't been tested for the latest version (TODO).
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).
- Ideally, each machine should have a SSD available in addition to the HDD you are dedicating - 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 to Garage. This will allow for faster access to metadata and has the potential
@ -45,44 +42,23 @@ For our example, we will suppose the following infrastructure with IPv6 connecti
## Get a Docker image ## 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). 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. 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 `v0.3.0` but it's up to you 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). 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: 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 ## Deploying and configuring Garage
On each machine, we will have a similar setup, On each machine, we will have a similar setup,
especially you must consider the following folders/files: especially you must consider the following folders/files:
- `/etc/garage/garage.toml`: Garage daemon's configuration (see below) - `/etc/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.
- `/var/lib/garage/meta/`: Folder containing Garage's metadata, - `/var/lib/garage/meta/`: Folder containing Garage's metadata,
put this folder on a SSD if possible put this folder on a SSD if possible
@ -91,7 +67,7 @@ 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) 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 ```toml
metadata_dir = "/var/lib/garage/meta" metadata_dir = "/var/lib/garage/meta"
@ -100,19 +76,13 @@ data_dir = "/var/lib/garage/data"
replication_mode = "3" replication_mode = "3"
rpc_bind_addr = "[::]:3901" rpc_bind_addr = "[::]:3901"
rpc_public_addr = "<this node's public IP>:3901"
rpc_secret = "<RPC secret>"
bootstrap_peers = [ bootstrap_peers = [
"[fc00:1::1]:3901", # We will fill this in later
"[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"
[s3_api] [s3_api]
s3_region = "garage" s3_region = "garage"
api_bind_addr = "[::]:3900" api_bind_addr = "[::]:3900"
@ -123,7 +93,37 @@ root_domain = ".web.garage"
index = "index.html" index = "index.html"
``` ```
Please make sure to change `bootstrap_peers` to **your** IP addresses! Check the following for your configuration files:
- 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`.
You will now have to run `garage node-id` on all nodes to generate node keys.
This will print keys as follows:
```bash
Mercury$ garage node-id
563e1ac825ee3323aa441e72c26d1030d6d4414aeb3dd25287c531e7fc2bc95d@[fc00:1::1]:3901
Venus$ garage node-id
86f0f26ae4afbd59aaf9cfb059eefac844951efd5b8caeec0d53f4ed6c85f332[fc00:1::2]:3901
etc.
```
You can then add these nodes to the `bootstrap_peers` list of at least one of your nodes:
```toml
bootstrap_peers = [
"563e1ac825ee3323aa441e72c26d1030d6d4414aeb3dd25287c531e7fc2bc95d@[fc00:1::1]:3901",
"86f0f26ae4afbd59aaf9cfb059eefac844951efd5b8caeec0d53f4ed6c85f332[fc00:1::2]:3901",
...
]
```
Check the [configuration file reference documentation](../reference_manual/configuration.md) Check the [configuration file reference documentation](../reference_manual/configuration.md)
to learn more about all available configuration options. to learn more about all available configuration options.
@ -139,11 +139,10 @@ docker run \
--name garaged \ --name garaged \
--restart always \ --restart always \
--network host \ --network host \
-v /etc/garage/pki:/etc/garage/pki \ -v /etc/garage.toml:/etc/garage.toml \
-v /etc/garage/garage.toml:/garage/garage.toml \
-v /var/lib/garage/meta:/var/lib/garage/meta \ -v /var/lib/garage/meta:/var/lib/garage/meta \
-v /var/lib/garage/data:/var/lib/garage/data \ -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. It should be restarted automatically at each reboot.
@ -159,65 +158,27 @@ start again the command with a new version of Garage.
## Controling the daemon ## Controling the daemon
The `garage` binary has two purposes: 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 - 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. Ensure an appropriate `garage` binary (the same version as your Docker image) is available in your path.
You first need to get a shell having access to this binary. For instance, enter the Docker container with: If your configuration file is at `/etc/garage.toml`, the `garage` binary should work with no further change.
```bash You can test your `garage` CLI utility by running a simple command such as:
sudo docker exec -ti garaged bash
```
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:
``` ```
--ca-cert <ca-cert> garage status
--client-cert <client-cert>
--client-key <client-key>
-h, --rpc-host <rpc-host>
```
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.
To avoid typing the 3 first options each time we want to run a command,
you can use the following alias:
```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'
```
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`.
#### Test the alias
You can test your alias by running a simple command such as:
```
garagectl status
``` ```
You should get something like that as result: You should get something like that as result:
``` ```
Healthy nodes: ==== HEALTHY NODES ====
8781c50c410a41b3… Mercury [fc00:1::1]:3901 UNCONFIGURED/REMOVED ID Hostname Address Tag Zone Capacity
2a638ed6c775b69a… Venus [fc00:1::2]:3901 UNCONFIGURED/REMOVED 563e1ac825ee3323… Mercury [fc00:1::1]:3901 NO ROLE ASSIGNED
68143d720f20c89d… Earth [fc00:B::1]:3901 UNCONFIGURED/REMOVED 86f0f26ae4afbd59… Venus [fc00:1::2]:3901 NO ROLE ASSIGNED
212f7572f0c89da9… Mars [fc00:F::1]:3901 UNCONFIGURED/REMOVED 68143d720f20c89d… Earth [fc00:B::1]:3901 NO ROLE ASSIGNED
212f7572f0c89da9… Mars [fc00:F::1]:3901 NO ROLE ASSIGNED
``` ```
@ -230,26 +191,26 @@ For our example, we will suppose we have the following infrastructure (Capacity,
| Location | Name | Disk Space | `Capacity` | `Identifier` | `Zone` | | Location | Name | Disk Space | `Capacity` | `Identifier` | `Zone` |
|----------|---------|------------|------------|--------------|--------------| |----------|---------|------------|------------|--------------|--------------|
| Paris | Mercury | 1 To | `2` | `8781c5` | `par1` | | Paris | Mercury | 1 To | `2` | `563e` | `par1` |
| Paris | Venus | 2 To | `4` | `2a638e` | `par1` | | Paris | Venus | 2 To | `4` | `86f0` | `par1` |
| London | Earth | 2 To | `4` | `68143d` | `lon1` | | London | Earth | 2 To | `4` | `6814` | `lon1` |
| Brussels | Mars | 1.5 To | `3` | `212f75` | `bru1` | | Brussels | Mars | 1.5 To | `3` | `212f` | `bru1` |
#### Node identifiers #### Node identifiers
After its first launch, Garage generates a random and unique identifier for each nodes, such as: 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. 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: 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; It will display the IP address associated with each node;
@ -287,16 +248,16 @@ 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: Given the information above, we will configure our cluster as follow:
``` ```
garagectl node configure -z par1 -c 2 -t mercury 8781c5 garage node configure -z par1 -c 2 -t mercury 563e
garagectl node configure -z par1 -c 4 -t venus 2a638e garage node configure -z par1 -c 4 -t venus 86f0
garagectl node configure -z lon1 -c 4 -t earth 68143d garage node configure -z lon1 -c 4 -t earth 6814
garagectl node configure -z bru1 -c 3 -t mars 212f75 garage node configure -z bru1 -c 3 -t mars 212f
``` ```
## Using your Garage cluster ## 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). 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 Remember also that the CLI is self-documented thanks to the `--help` flag and
the `help` subcommand (e.g. `garage help`, `garage key --help`). the `help` subcommand (e.g. `garage help`, `garage key --help`).

2
doc/book/src/quick_start/index.md
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@ -105,7 +105,7 @@ This should show something like this:
``` ```
==== HEALTHY NODES ==== ==== HEALTHY NODES ====
ID Hostname Address Tag Zone Capacity ID Hostname Address Tag Zone Capacity
563e1ac825ee3323… linuxbox 127.0.0.1:3901 UNCONFIGURED/REMOVED 563e1ac825ee3323… linuxbox 127.0.0.1:3901 NO ROLE ASSIGNED
``` ```
## Configuring your Garage node ## Configuring your Garage node

2
script/dev-cluster.sh
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@ -76,7 +76,7 @@ for count in $(seq 1 3); do
done done
RETRY=120 RETRY=120
until garage -c /tmp/config.1.toml status 2>&1|grep -q Healthy ; do until garage -c /tmp/config.1.toml status 2>&1|grep -q HEALTHY ; do
(( RETRY-- )) (( RETRY-- ))
if (( RETRY <= 0 )); then if (( RETRY <= 0 )); then
echo -en "${MAIN_LABEL} Garage did not start" echo -en "${MAIN_LABEL} Garage did not start"

4
script/dev-configure.sh
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@ -11,7 +11,7 @@ PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:${NIX_RELEASE}:$PATH"
sleep 5 sleep 5
RETRY=120 RETRY=120
until garage -c /tmp/config.1.toml status 2>&1|grep -q Healthy ; do until garage -c /tmp/config.1.toml status 2>&1|grep -q HEALTHY ; do
(( RETRY-- )) (( RETRY-- ))
if (( RETRY <= 0 )); then if (( RETRY <= 0 )); then
echo "garage did not start in time, failing." echo "garage did not start in time, failing."
@ -22,7 +22,7 @@ until garage -c /tmp/config.1.toml status 2>&1|grep -q Healthy ; do
done done
garage -c /tmp/config.1.toml status \ garage -c /tmp/config.1.toml status \
| grep UNCONFIGURED \ | grep 'NO ROLE' \
| grep -Po '^[0-9a-f]+' \ | grep -Po '^[0-9a-f]+' \
| while read id; do | while read id; do
garage -c /tmp/config.1.toml node configure -z dc1 -c 1 $id garage -c /tmp/config.1.toml node configure -z dc1 -c 1 $id

2
src/garage/cli.rs
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@ -371,7 +371,7 @@ pub async fn cmd_status(rpc_cli: &Endpoint<SystemRpc, ()>, rpc_host: NodeID) ->
)); ));
} else { } else {
healthy_nodes.push(format!( healthy_nodes.push(format!(
"{id:?}\t{h}\t{addr}\tUNCONFIGURED/REMOVED", "{id:?}\t{h}\t{addr}\tNO ROLE ASSIGNED",
id = adv.id, id = adv.id,
h = adv.status.hostname, h = adv.status.hostname,
addr = adv.addr, addr = adv.addr,