Configuration
=============
This chapter is a collection of configuration snippets for different
scenarios.
Including files
---------------
`hydra.conf` supports Apache-style includes. This is **IMPORTANT**
because that is how you keep your **secrets** out of the **Nix store**.
Hopefully this got your attention 😌
This:
```
<github_authorization>
NixOS = Bearer gha-secret😱secret😱secret😱
</github_authorization>
```
should **NOT** be in `hydra.conf`.
`hydra.conf` is rendered in the Nix store and is therefore world-readable.
Instead, the above should be written to a file outside the Nix store by
other means (manually, using Nixops' secrets feature, etc) and included
like so:
```
Include github_authorizations.conf
```
Note that the included files must be relative to `hydra.conf` (not absolute).
Serving behind reverse proxy
----------------------------
To serve hydra web server behind reverse proxy like *nginx* or *httpd*
some additional configuration must be made.
Edit your `hydra.conf` file in a similar way to this example:
```conf
using_frontend_proxy 1
base_uri example.com
```
`base_uri` should be your hydra servers proxied URL. If you are using
Hydra nixos module then setting `hydraURL` option should be enough.
If you want to serve Hydra with a prefix path, for example
[http://example.com/hydra]() then you need to configure your reverse
proxy to pass `X-Request-Base` to hydra, with prefix path as value. For
example if you are using nginx, then use configuration similar to
following:
server {
listen 433 ssl;
server_name example.com;
.. other configuration ..
location /hydra/ {
proxy_pass http://127.0.0.1:3000;
proxy_redirect http://127.0.0.1:3000 https://example.com/hydra;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Request-Base /hydra;
}
}
Statsd Configuration
--------------------
By default, Hydra will send stats to statsd at `localhost:8125`. Point Hydra to a different server via:
```
<statsd>
host = alternative.host
port = 18125
</statsd>
```
Using LDAP as authentication backend (optional)
-----------------------------------------------
Instead of using Hydra\'s built-in user management you can optionally
use LDAP to manage roles and users.
The `hydra-server` accepts the environment variable
*HYDRA\_LDAP\_CONFIG*. The value of the variable should point to a valid
YAML file containing the Catalyst LDAP configuration. The format of the
configuration file is describe in the
[*Catalyst::Authentication::Store::LDAP*
documentation](https://metacpan.org/pod/Catalyst::Authentication::Store::LDAP#CONFIGURATION-OPTIONS).
An example is given below.
Roles can be assigned to users based on their LDAP group membership
(*use\_roles: 1* in the below example). For a user to have the role
*admin* assigned to them they should be in the group *hydra\_admin*. In
general any LDAP group of the form *hydra\_some\_role* (notice the
*hydra\_* prefix) will work.
credential:
class: Password
password_field: password
password_type: self_check
store:
class: LDAP
ldap_server: localhost
ldap_server_options.timeout: 30
binddn: "cn=root,dc=example"
bindpw: notapassword
start_tls: 0
start_tls_options
verify: none
user_basedn: "ou=users,dc=example"
user_filter: "(&(objectClass=inetOrgPerson)(cn=%s))"
user_scope: one
user_field: cn
user_search_options:
deref: always
use_roles: 1
role_basedn: "ou=groups,dc=example"
role_filter: "(&(objectClass=groupOfNames)(member=%s))"
role_scope: one
role_field: cn
role_value: dn
role_search_options:
deref: always