Commit 957f8763 authored by Marcia Ramos's avatar Marcia Ramos

Merge branch 'dz-rename-custom-hooks' into 'master'

Rename custom hooks to server hooks

See merge request gitlab-org/gitlab!23064
parents eded27d0 8e351d82
---
title: Rename Custom hooks to Server hooks
merge_request: 23064
author:
type: changed
# Custom server-side Git hooks **(CORE ONLY)**
---
redirect_to: 'server_hooks.md'
---
NOTE: **Note:**
Custom Git hooks must be configured on the filesystem of the GitLab
server. Only GitLab server administrators will be able to complete these tasks.
Please explore [webhooks] and [CI] as an option if you do not
have filesystem access. For a user configurable Git hook interface, see
[Push Rules](../push_rules/push_rules.md),
available in GitLab Enterprise Edition.
NOTE: **Note:**
Custom Git hooks won't be replicated to secondary nodes if you use [GitLab Geo](geo/replication/index.md)
Git natively supports hooks that are executed on different actions.
Examples of server-side Git hooks include pre-receive, post-receive, and update.
See [Git SCM Server-Side Hooks][hooks] for more information about each hook type.
As of GitLab Shell version 2.2.0 (which requires GitLab 7.5+), GitLab
administrators can add custom Git hooks to any GitLab project.
## Create a custom Git hook for a repository
Server-side Git hooks are typically placed in the repository's `hooks`
subdirectory. In GitLab, hook directories are symlinked to the GitLab Shell
`hooks` directory for ease of maintenance between GitLab Shell upgrades.
Custom hooks are implemented differently, but the behavior is exactly the same
once the hook is created. Follow the steps below to set up a custom hook for a
repository:
1. Pick a project that needs a custom Git hook.
1. On the GitLab server, navigate to the project's repository directory.
For an installation from source the path is usually
`/home/git/repositories/<group>/<project>.git`. For Omnibus installs the path is
usually `/var/opt/gitlab/git-data/repositories/<group>/<project>.git`.
1. Create a new directory in this location called `custom_hooks`.
1. Inside the new `custom_hooks` directory, create a file with a name matching
the hook type. For a pre-receive hook the file name should be `pre-receive`
with no extension.
1. Make the hook file executable and make sure it's owned by Git.
1. Write the code to make the Git hook function as expected. Hooks can be
in any language. Ensure the 'shebang' at the top properly reflects the language
type. For example, if the script is in Ruby the shebang will probably be
`#!/usr/bin/env ruby`.
That's it! Assuming the hook code is properly implemented the hook will fire
as appropriate.
## Set a global Git hook for all repositories
To create a Git hook that applies to all of your repositories in
your instance, set a global Git hook. Since GitLab will look inside the GitLab Shell
`hooks` directory for global hooks, adding any hook there will apply it to all repositories.
Follow the steps below to properly set up a custom hook for all repositories:
1. On the GitLab server, navigate to the configured custom hook directory. The
default is in the GitLab Shell directory. The GitLab Shell `hook` directory
for an installation from source the path is usually
`/home/git/gitlab-shell/hooks`. For Omnibus installs the path is usually
`/opt/gitlab/embedded/service/gitlab-shell/hooks`.
To look in a different directory for the global custom hooks,
set `custom_hooks_dir` in the GitLab Shell config. For
Omnibus installations, this can be set in `gitlab.rb`; and in source
installations, this can be set in `gitlab-shell/config.yml`.
1. Create a new directory in this location. Depending on your hook, it will be
either a `pre-receive.d`, `post-receive.d`, or `update.d` directory.
1. Inside this new directory, add your hook. Hooks can be
in any language. Ensure the 'shebang' at the top properly reflects the language
type. For example, if the script is in Ruby the shebang will probably be
`#!/usr/bin/env ruby`.
1. Make the hook file executable and make sure it's owned by Git.
Now test the hook to see that it's functioning properly.
## Chained hooks support
> [Introduced][93] in GitLab Shell 4.1.0 and GitLab 8.15.
Hooks can be also global or be set per project directories and support a chained
execution of the hooks.
NOTE: **Note:**
`<hook_name>.d` would need to be either `pre-receive.d`,
`post-receive.d`, or `update.d` to work properly. Any other names will be ignored.
NOTE: **Note:**
Files in `.d` directories need to be executable and not match the backup file
pattern (`*~`).
The hooks are searched and executed in this order:
1. `gitlab-shell/hooks` directory as known to Gitaly
1. `<project>.git/hooks/<hook_name>` - executed by `git` itself, this is symlinked to `gitlab-shell/hooks/<hook_name>`
1. `<project>.git/custom_hooks/<hook_name>` - per project hook (this is already existing behavior)
1. `<project>.git/custom_hooks/<hook_name>.d/*` - per project hooks
1. `<project>.git/hooks/<hook_name>.d/*` OR `<custom_hooks_dir>/<hook_name.d>/*` - global hooks: all executable files (minus editor backup files)
The hooks of the same type are executed in order and execution stops on the
first script exiting with a non-zero value.
## Custom error messages
> [Introduced][5073] in GitLab 8.10.
To have custom error messages appear in GitLab's UI when the commit is
declined or an error occurs during the Git hook, your script should:
- Send the custom error messages to either the script's `stdout` or `stderr`.
- Prefix each message with `GL-HOOK-ERR:` with no characters appearing before the prefix.
### Example custom error message
This hook script written in bash will generate the following message in GitLab's UI:
```bash
#!/bin/sh
echo "GL-HOOK-ERR: My custom error message.";
exit 1
```
![Custom message from custom Git hook](img/custom_hooks_error_msg.png)
[CI]: ../ci/README.md
[hooks]: https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks#Server-Side-Hooks
[webhooks]: ../user/project/integrations/webhooks.md
[5073]: https://gitlab.com/gitlab-org/gitlab-foss/merge_requests/5073
[93]: https://gitlab.com/gitlab-org/gitlab-shell/merge_requests/93
This document was moved to [another location](server_hooks.md).
......@@ -352,9 +352,9 @@ coming in. One sure way to trigger a Gitaly request is to clone a repository
from your GitLab server over HTTP.
DANGER: **Danger:**
If you have [custom server-side Git hooks](../custom_hooks.md) configured,
If you have [Server hooks](../server_hooks.md) configured,
either per repository or globally, you must move these to the Gitaly node.
If you have multiple Gitaly nodes, copy your custom hook(s) to all nodes.
If you have multiple Gitaly nodes, copy your server hook(s) to all nodes.
### Disabling the Gitaly service in a cluster environment
......
......@@ -166,7 +166,7 @@ Learn how to install, configure, update, and maintain your GitLab instance.
## Git configuration options
- [Custom Git hooks](custom_hooks.md): Custom Git hooks (on the filesystem) for when webhooks aren't enough.
- [Server hooks](server_hooks.md): Server hooks (on the filesystem) for when webhooks aren't enough.
- [Git LFS configuration](lfs/lfs_administration.md): Learn how to configure LFS for GitLab.
- [Housekeeping](housekeeping.md): Keep your Git repositories tidy and fast.
- [Configuring Git Protocol v2](git_protocol.md): Git protocol version 2 support.
......
---
type: reference, howto
disqus_identifier: 'https://docs.gitlab.com/ee/administration/custom_hooks.html'
---
# Server hooks **(CORE ONLY)**
> **Notes:**
>
> - Server hooks were [introduced](https://gitlab.com/gitlab-org/gitlab/issues/196051) in GitLab 12.8 replacing Custom Hooks.
> - Server hooks must be configured on the filesystem of the GitLab server. Only GitLab server administrators will be able to complete these tasks. Please explore [webhooks](../user/project/integrations/webhooks.md) and [GitLab CI/CD](../ci/README.md) as an option if you do not have filesystem access. For a user-configurable Git hook interface, see [Push Rules](../push_rules/push_rules.md), available in GitLab Starter **(STARTER)**.
> - Server hooks won't be replicated to secondary nodes if you use [GitLab Geo](geo/replication/index.md).
Git natively supports hooks that are executed on different actions.
Examples of server-side Git hooks include pre-receive, post-receive, and update.
See [Git SCM Server-Side Hooks](https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks#Server-Side-Hooks) for more information about each hook type.
As of GitLab Shell version 2.2.0 (which requires GitLab 7.5+), GitLab
administrators can add custom Git hooks to any GitLab project.
## Create a server hook for a repository
Server-side Git hooks are typically placed in the repository's `hooks`
subdirectory. In GitLab, hook directories are symlinked to the GitLab Shell
`hooks` directory for ease of maintenance between GitLab Shell upgrades.
Server hooks are implemented differently, but the behavior is exactly the same
once the hook is created. Follow the steps below to set up a server hook for a
repository:
1. Pick a project that needs a server hook.
1. On the GitLab server, navigate to the project's repository directory.
For an installation from source the path is usually
`/home/git/repositories/<group>/<project>.git`. For Omnibus installs the path is
usually `/var/opt/gitlab/git-data/repositories/<group>/<project>.git`.
1. Create a new directory in this location called `custom_hooks`.
1. Inside the new `custom_hooks` directory, create a file with a name matching
the hook type. For a pre-receive hook the file name should be `pre-receive`
with no extension.
1. Make the hook file executable and make sure it's owned by Git.
1. Write the code to make the server hook function as expected. Hooks can be
in any language. Ensure the 'shebang' at the top properly reflects the language
type. For example, if the script is in Ruby the shebang will probably be
`#!/usr/bin/env ruby`.
That's it! Assuming the hook code is properly implemented the hook will fire
as appropriate.
## Set a global server hook for all repositories
To create a Git hook that applies to all of your repositories in
your instance, set a global server hook. Since GitLab will look inside the GitLab Shell
`hooks` directory for global hooks, adding any hook there will apply it to all repositories.
Follow the steps below to properly set up a server hook for all repositories:
1. On the GitLab server, navigate to the configured custom hook directory. The
default is in the GitLab Shell directory. The GitLab Shell `hook` directory
for an installation from source the path is usually
`/home/git/gitlab-shell/hooks`. For Omnibus installs the path is usually
`/opt/gitlab/embedded/service/gitlab-shell/hooks`.
To look in a different directory for the global custom hooks,
set `custom_hooks_dir` in the GitLab Shell config. For
Omnibus installations, this can be set in `gitlab.rb`; and in source
installations, this can be set in `gitlab-shell/config.yml`.
1. Create a new directory in this location. Depending on your hook, it will be
either a `pre-receive.d`, `post-receive.d`, or `update.d` directory.
1. Inside this new directory, add your hook. Hooks can be
in any language. Ensure the 'shebang' at the top properly reflects the language
type. For example, if the script is in Ruby the shebang will probably be
`#!/usr/bin/env ruby`.
1. Make the hook file executable and make sure it's owned by Git.
Now test the hook to check whether it is functioning properly.
## Chained hooks support
> [Introduced](https://gitlab.com/gitlab-org/gitlab-shell/merge_requests/93) in GitLab Shell 4.1.0 and GitLab 8.15.
Hooks can be also global or be set per project directories and support a chained
execution of the hooks.
NOTE: **Note:**
`<hook_name>.d` would need to be either `pre-receive.d`,
`post-receive.d`, or `update.d` to work properly. Any other names will be ignored.
NOTE: **Note:**
Files in `.d` directories need to be executable and not match the backup file
pattern (`*~`).
The hooks are searched and executed in this order:
1. `gitlab-shell/hooks` directory as known to Gitaly.
1. `<project>.git/hooks/<hook_name>` - executed by `git` itself, this is symlinked to `gitlab-shell/hooks/<hook_name>`.
1. `<project>.git/custom_hooks/<hook_name>` - per-project hook (this was kept as the already existing behavior).
1. `<project>.git/custom_hooks/<hook_name>.d/*` - per-project hooks.
1. `<project>.git/hooks/<hook_name>.d/*` OR `<custom_hooks_dir>/<hook_name.d>/*` - global hooks: all executable files (except editor backup files).
The hooks of the same type are executed in order and execution stops on the
first script exiting with a non-zero value.
## Custom error messages
> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/merge_requests/5073) in GitLab 8.10.
To have custom error messages appear in GitLab's UI when the commit is
declined or an error occurs during the Git hook, your script should:
- Send the custom error messages to either the script's `stdout` or `stderr`.
- Prefix each message with `GL-HOOK-ERR:` with no characters appearing before the prefix.
### Example custom error message
This hook script written in bash will generate the following message in GitLab's UI:
```bash
#!/bin/sh
echo "GL-HOOK-ERR: My custom error message.";
exit 1
```
![Custom message from custom Git hook](img/custom_hooks_error_msg.png)
---
redirect_to: '../administration/custom_hooks.md'
redirect_to: '../administration/server_hooks.md'
---
# Custom Git Hooks
This document was moved to [administration/custom_hooks.md](../administration/custom_hooks.md).
This document was moved to [administration/server_hooks.md](../administration/server_hooks.md).
......@@ -52,9 +52,9 @@ will get rejected.
### Custom Push Rules **(CORE ONLY)**
It's possible to create custom push rules rather than the push rules available in
**Admin Area > Push Rules** by using more advanced server-side Git hooks.
**Admin Area > Push Rules** by using more advanced server hooks.
See [custom server-side Git hooks](../administration/custom_hooks.md) for more information.
See [server hooks](../administration/server_hooks.md) for more information.
## Enabling push rules
......
......@@ -69,7 +69,7 @@ If you have problems with Git, the following may help:
The following are advanced topics for those who want to get the most out of Git:
- [Custom Git Hooks](../../administration/custom_hooks.md)
- [Server Hooks](../../administration/server_hooks.md)
- [Git Attributes](../../user/project/git_attributes.md)
- Git Submodules: [Using Git submodules with GitLab CI](../../ci/git_submodules.md#using-git-submodules-with-gitlab-ci)
- [Partial Clone](partial_clone.md)
......
......@@ -341,7 +341,7 @@ the upstream Git repository. In this configuration one Git repository acts as
the authoritative upstream, and the other as downstream. The `pre-receive` hook
will be installed on the downstream repository.
Read about [configuring custom Git hooks](../../../administration/custom_hooks.md) on the GitLab server.
Read about [configuring Server hooks](../../../administration/server_hooks.md) on the GitLab server.
A sample `pre-receive` hook is provided below.
......
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