LDAP Rake tasks

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The following are LDAP-related Rake tasks.

Check

The LDAP check Rake task tests the bind_dn and password credentials (if configured) and lists a sample of LDAP users. This task is also executed as part of the gitlab:check task, but can run independently using the command below.

Linux package installations:
```
sudo gitlab-rake gitlab:ldap:check
```

Self-compiled installations:

sudo -u git -H bundle exec rake gitlab:ldap:check RAILS_ENV=production

By default, the task returns a sample of 100 LDAP users. Change this limit by passing a number to the check task:

rake gitlab:ldap:check[50]

Run a group sync

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The following task runs a group sync immediately. This is valuable when you'd like to update all configured group memberships against LDAP without waiting for the next scheduled group sync to be run.

NOTE: If you'd like to change the frequency at which a group sync is performed, adjust the cron schedule instead.

Linux package installations:
```
sudo gitlab-rake gitlab:ldap:group_sync
```
Self-compiled installations:
```
bundle exec rake gitlab:ldap:group_sync
```

Rename a provider

If you change the LDAP server ID in gitlab.yml or gitlab.rb you need to update all user identities or users aren't able to sign in. Input the old and new provider and this task updates all matching identities in the database.

old_provider and new_provider are derived from the prefix ldap plus the LDAP server ID from the configuration file. For example, in gitlab.yml or gitlab.rb you may see LDAP configuration like this:

main:
  label: 'LDAP'
  host: '_your_ldap_server'
  port: 389
  uid: 'sAMAccountName'
  ...

main is the LDAP server ID. Together, the unique provider is ldapmain.

WARNING: If you input an incorrect new provider, users cannot sign in. If this happens, run the task again with the incorrect provider as the old_provider and the correct provider as the new_provider.

Linux package installations:

sudo gitlab-rake gitlab:ldap:rename_provider[old_provider,new_provider]

Self-compiled installations:

bundle exec rake gitlab:ldap:rename_provider[old_provider,new_provider] RAILS_ENV=production

Example

Consider beginning with the default server ID main (full provider ldapmain). If we change main to mycompany, the new_provider is ldapmycompany. To rename all user identities run the following command:

sudo gitlab-rake gitlab:ldap:rename_provider[ldapmain,ldapmycompany]

Example output:

100 users with provider 'ldapmain' will be updated to 'ldapmycompany'.
If the new provider is incorrect, users will be unable to sign in.
Do you want to continue (yes/no)? yes

User identities were successfully updated

Other options

If you do not specify an old_provider and new_provider the task prompts you for them:

Linux package installations:

sudo gitlab-rake gitlab:ldap:rename_provider

Self-compiled installations:

bundle exec rake gitlab:ldap:rename_provider RAILS_ENV=production

Example output:

What is the old provider? Ex. 'ldapmain': ldapmain
What is the new provider? Ex. 'ldapcustom': ldapmycompany

This task also accepts the force environment variable, which skips the confirmation dialog:

sudo gitlab-rake gitlab:ldap:rename_provider[old_provider,new_provider] force=yes

Secrets

GitLab can use LDAP configuration secrets to read from an encrypted file. The following Rake tasks are provided for updating the contents of the encrypted file.

Show secret

Show the contents of the current LDAP secrets.

Linux package installations:

sudo gitlab-rake gitlab:ldap:secret:show

Self-compiled installations:

bundle exec rake gitlab:ldap:secret:show RAILS_ENV=production

Example output:

main:
  password: '123'
  bind_dn: 'gitlab-adm'

Edit secret

Opens the secret contents in your editor, and writes the resulting content to the encrypted secret file when you exit.

Linux package installations:

sudo gitlab-rake gitlab:ldap:secret:edit EDITOR=vim

Self-compiled installations:

bundle exec rake gitlab:ldap:secret:edit RAILS_ENV=production EDITOR=vim

Write raw secret

Write new secret content by providing it on STDIN.

Linux package installations:

echo -e "main:\n  password: '123'" | sudo gitlab-rake gitlab:ldap:secret:write

Self-compiled installations:

echo -e "main:\n  password: '123'" | bundle exec rake gitlab:ldap:secret:write RAILS_ENV=production

Secrets examples

Editor example

The write task can be used in cases where the edit command does not work with your editor:

# Write the existing secret to a plaintext file
sudo gitlab-rake gitlab:ldap:secret:show > ldap.yaml
# Edit the ldap file in your editor
...
# Re-encrypt the file
cat ldap.yaml | sudo gitlab-rake gitlab:ldap:secret:write
# Remove the plaintext file
rm ldap.yaml

KMS integration example

It can also be used as a receiving application for content encrypted with a KMS:

gcloud kms decrypt --key my-key --keyring my-test-kms --plaintext-file=- --ciphertext-file=my-file --location=us-west1 | sudo gitlab-rake gitlab:ldap:secret:write

Google Cloud secret integration example

It can also be used as a receiving application for secrets out of Google Cloud:

gcloud secrets versions access latest --secret="my-test-secret" > $1 | sudo gitlab-rake gitlab:ldap:secret:write