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README.md
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@ -3,17 +3,39 @@ in order to provide a redundant (high-availability) LDAP server on a Nomad+Consu
It is a reimplementation of [superboum's Bottin](https://github.com/superboum/bottin)
using the Go programming language.
Features:
- most LDAP operations implemented (add, modify, delete, compare, search with most basic filters)
- TLS support with STARTTLS
- Access control through an ACL (hardcoded in the configuration file)
Building `gobottin` can be done simply by running `go build` in this folder.
`gobottin` takes a single command line argument, `-config <filename>`, which is the
path to its config file (defaults to `./config.json`).
The configuration file is a JSON file whose contents is described in the following section.
# Server initialization
When `gobottin` is launched on an empty database,
it creates a special admin entity with the name `cn=admin,your_suffix`.
It will have a randomly generated password that is printed out by the server.
Check your logs to retrieve the password.
The admin entity has no powers other than those granted by the ACL rules,
so unless you don't want to use it, make sure to keep rules that allow to
bind to the admin entity and that allows the admin entity to do everything.
# Configuration of `gobottin`
## The LDAP suffix
`gobottin` only handles LDAP entries under a given path, which is typically of the form `dn=sld,dn=tld`, where `sld.tld` is your domain name. Specify this suffix in the `suffix` key of the json config file.
`gobottin` only handles LDAP entries under a given path, which is typically of
the form `dn=sld,dn=tld`, where `sld.tld` is your domain name. Specify this
suffix in the `suffix` key of the json config file.
## Connection to the Consul server
@ -54,17 +76,20 @@ A rule is a string composed of five fields separated by `:`. The fields are the
### Rule examples
```
// Anybody (before binding) can bind to an entity under ou=users,dc=gobottin,dc=eu
"ANONYMOUS::bind:*,ou=users,dc=gobottin,dc=eu:",
// Anybody (before binding) can bind to the specific admin entity
"ANONYMOUS::bind:cn=admin,dc=gobottin,dc=eu:",
// Anybody who is logged in can read anything that is not a userpassword attribute
"*,dc=gobottin,dc=eu::read:*:* !userpassword",
// Anybody can read and modify anything from their own entry
"*::read modify:SELF:*",
// The admin can read, add, modify, delete anything
"cn=admin,dc=gobottin,dc=eu::read add modify delete:*:*",
// Members of the admin group can read, add, modify, delete anything
"*:cn=admin,ou=groups,dc=gobottin,dc=eu:read add modify delete:*:*"
```
- Anybody (before binding) can bind to an entity under `ou=users,dc=gobottin,dc=eu`:
`ANONYMOUS::bind:*,ou=users,dc=gobottin,dc=eu:`
- Anybody (before binding) can bind to the specific admin entity:
`ANONYMOUS::bind:cn=admin,dc=gobottin,dc=eu:`
- Anybody who is logged in can read anything that is not a userpassword attribute:
`*,dc=gobottin,dc=eu::read:*:* !userpassword`
- Anybody can read and modify anything from their own entry:
`*::read modify:SELF:*`
- The admin can read, add, modify, delete anything:
`cn=admin,dc=gobottin,dc=eu::read add modify delete:*:*`
- Members of the admin group can read, add, modify, delete anything:
`*:cn=admin,ou=groups,dc=gobottin,dc=eu:read add modify delete:*:*`