Editing GitLab

[[wikipedia:GitLab]] ([[2011]]) is a web-based [[DevOps]] lifecycle software service or locally installed, available since 2011, that provides a [[Git]]-repository manager providing wiki, issue-tracking and [[CI/CD]] pipeline features, using an open-source license.
* https://www.google.com/finance/quote/GTLB:NASDAQ?hl=en&window=5Y

Since April 2018, GitLab support integration with [[Google Kubernetes Engine]] (GKE) to simplify the process of spinning up a new [[Kubernetes]] cluster and deploy applications.

GitLab is integrated of different modules including [[GitLab Runner]]<ref>https://docs.gitlab.com/runner/</ref> (<code>.[[gitlab-ci.yml]]</code>) responsible for the [[continuous integration]]<ref>https://docs.gitlab.com/runner/</ref> with an embedded HTTP Statistics Server with Prometheus metrics available on <code>/metrics</code> since GitLab Runner 1.8.0.<ref>https://docs.gitlab.com/runner/monitoring/README.html</ref>

GitLab offers many features such as:
* [[Audit events]]<ref>https://docs.gitlab.com/ee/administration/audit_events.html</ref>
* [[GitLab container registry]]<ref>https://docs.gitlab.com/ee/user/packages/container_registry/</ref>
* [[ElasticSearch]] and [[Sentry]] integration <ref>https://docs.gitlab.com/ee/integration/elasticsearch.html</ref> (not installed with GitLab)
* read-only mirrors called GitLab Geo (Premium)
* [[SAML]] 2.0 Service Provider (SP) capabilities used for Web Browser Single Sign-On ([[SSO]])
* [[Project members permissions]]: Guest, Reporter, Developer, [[Maintainer]], Owner <ref>https://docs.gitlab.com/ee/user/permissions.html</ref>

An integrates with many platforms such as [[Salesforce]] DX and [[Snowplow]].

== GitLab Software ==
=== Binaries ===
* <code>[[gitlab-ctl]]</code>
** <code>[[gitlab-ctl status]]</code>
** <code>gitlab-ctl tail</code>
** <code>gitlab-ctl pg-password-md5 gitlab</code>
** <code>[[gitlab-ctl reconfigure]]</code>

=== Configuration files ===
* Default configuration file: <code>/etc/gitlab/[[gitlab.rb]]</code>
* Secrets: <code>/etc/gitlab/[[gitlab-secrets.json]]</code>
* Default data directory: <code>[[/var/opt/gitlab/]]git-data</code>
* Default [[Gitlab backups|backup]] directory: <code>[[/var/opt/gitlab/]]backup</code>
* GitLab [[CI/CD]] pipelines: <code>.[[gitlab-ci.yml]]</code> https://docs.gitlab.com/ee/ci/yaml/

=== [[GitLab logs]] ===
* <code>/var/log/gitlab/gitlab-rails/[[production.log]]</code>
* <code>[[application.log]]</code> and <code>application_json.log</code> (Since [[GitLab 12.7]])

== [[Health check]]s and monitoring ==
[[Health check]]s  https://docs.gitlab.com/ee/user/admin_area/monitoring/health_check.html
* <code>GET http://localhost/-/health</code>
* <code>GET http://localhost/-/readiness</code>
* <code>GET http://localhost/-/liveness</code>

[[GitLab]] provides a [[Prometheus]] and [[Grafana]] integration, GitLab export GitLab metrics to [[Prometheus]] monitoring system<ref>{{Cite web|url = https://docs.gitlab.com/ee/administration/monitoring/prometheus/gitlab_metrics.html|title = GitLab Prometheus metrics|accessdate = December 26, 2018}}</ref> and it is activated by default since version 9.0 in 2017.<ref>https://about.gitlab.com/2017/03/22/gitlab-9-0-released/</ref>



== Components ==
* [[Sidekiq]] job scheduler

== [[GitLab editions]] ==

==Activities==
=== Basic ===
# Read GitLab CI/CD Pipeline Configuration Reference:<code>.gitlab-ci.yml</code> https://docs.gitlab.com/ee/ci/yaml/
# [[Create a backup from GitLab]]

=== Medium ===
# Read [[GitLab release notes/Changelog|GitLab release notes/Changelog/versions]]
# [[Install GitLab]] using docker containers. Note: Gitlab uses [[PostgreSQL]] as database backend.<ref>https://docs.gitlab.com/omnibus/settings/database.html</ref>
# Review [[GitLab Automatic Let’s Encrypt Renewal]]
# Review [[GitLab project members permissions]]/privileges: Guest, Reporter, Developer, Maintainer, Owner, and external users.
# Generate new 2FA codes: [[GitLab: ssh git@gitlab.com 2fa recovery codes]]

=== Advanced ===
# Review [[Ansible]] GitLab modules https://docs.ansible.com/ansible/latest/modules/list_of_all_modules.html
# Enable Gitlab [[container registry]] in: <code>/etc/gitlab/gitlab.rb</code><ref>https://docs.gitlab.com/ee/administration/packages/container_registry.html#container-registry-storage-driver</ref>
# Read https://about.gitlab.com/devops-tools/teamcity-vs-gitlab.html

== GitLab and Kubernetes ==
Since April 2018, GitLab simplifies process of spinning up a new [[Kubernetes]] cluster in [[Google Kubernetes Engine]] ([[GKE]]) to deploy applications.<ref>https://about.gitlab.com/2018/04/05/gke-gitlab->in [[Google Kubernetes Engine]] (GKE) integration/</ref>

== Related terms ==
* [[U2F]]
* [[GitLab groups]] https://about.gitlab.com/blog/2014/06/30/feature-highlight-groups/
* [[EKS]] integration
* [[Bitbucket]]
* [[Azure DevOps Server]]
* [[GitHub Enterprise Server]]
* [[Terraform resource: gitlab_deploy_token]]
* [[ICONIQ Capital]]
* [[Meltano]] [[ETL]]
* [[GitLab environment variables]]

== See also ==
* {{GitLab}}
* {{git software}}
* {{SCA}}
* {{VCS}}
* [[wikipedia:Comparison_of_source-code-hosting_facilities]]

[[Category:Cloud computing| ]]
[[Category: Software development]]
[[Category:Version Control]]
[[Category:CI]]

{{CC license}}
Source: https://en.wikiversity.org/wiki/DevOps/GitLab