Install Gitlab Ce Docker

Docker GitLab-CE: ulimit. Ask Question Asked 1 year, 6 months ago. 1 on saturday I tried to install Gitlab-CE on a new root Ubuntu Server. I got this error. Docker is a open source container program that performs operating-system-level virtualization. Docker currently provides three products Enterprise Edition (EE) 、 Community Edition (CE) and Cloud. This article documents how to install and configure Docker CE in GNU/Linux, then implement the entire process through Shell script. Cd /gitlab docker-compose ps. You will get the GitLab container is up and running. Check GitLab Service Status inside the Container. To check all GitLab services inside the Gitlab container, use the 'docker exec' command as below. Sudo docker exec -it gitlabweb1 gitlab-ctl status. Below is the result you will get.

To create a backup of your repositories and GitLab metadata, follow the backup create documentation. Backup create will store a tar file in /var/opt/gitlab/backups. If you want to store your GitLab backups in a different directory, add the following setting to /etc/gitlab/gitlab.rb and run sudo gitlab-ctl reconfigure. Gitlab-runner exec docker can only be used when Docker is installed locally. This is needed because GitLab Runner is using host-bind volumes to access the Git sources. Internal commands. GitLab Runner is distributed as a single binary and contains a few internal commands that are used during builds. Gitlab-runner artifacts-downloader.

  • Registration-related commands
    • gitlab-runner register
    • gitlab-runner unregister
  • Service-related commands
  • Run-related commands
    • gitlab-runner exec
  • Internal commands
  • Troubleshooting

GitLab Runner contains a set of commands you use to register, manage, andrun your builds.

You can check a recent list of commands by executing:

Append --help after a command to see its specific help page:

Using environment variables

Most of the commands support environment variables as a method to pass theconfiguration to the command.

You can see the name of the environment variable when invoking --help for aspecific command. For example, you can see below the help message for the runcommand:

The output is similar to:

Running in debug mode

Debug mode is especially useful when looking for the cause of some undefinedbehavior or error.

To run a command in debug mode, prepend the command with --debug:

Super-user permission

Commands that access the configuration of GitLab Runner behave differently whenexecuted as super-user (root). The file location depends on the user executingthe command.

When you execute gitlab-runner commands, you see the mode it is running in:

You should use user-mode if you are sure this is the mode youwant to work with. Otherwise, prefix your command with sudo:

In the case of Windows, you may need to run the command prompt asan administrator.

Configuration file

GitLab Runner configuration uses the TOML format.

You can find the file to be edited:

  1. On *nix systems when GitLab Runner isexecuted as super-user (root): /etc/gitlab-runner/config.toml
  2. On *nix systems when GitLab Runner isexecuted as non-root: ~/.gitlab-runner/config.toml
  3. On other systems: ./config.toml

Most of the commands accept an argument to specify a custom configuration file,so you can have a multiple different configurations on a single machine.To specify a custom configuration file, use the -c or --config flag, or usethe CONFIG_FILE environment variable.

Signals

You can use system signals to interact with GitLab Runner. Thefollowing commands support the following signals:
CommandSignalAction
registerSIGINTCancel runner registration and delete if it was already registered.
run, exec, run-singleSIGINT, SIGTERMAbort all running builds and exit as soon as possible. Use twice to exit now (forceful shutdown).
run, exec, run-singleSIGQUITStop accepting a new builds. Exit as soon as currently running builds do finish (graceful shutdown).
runSIGHUPForce to reload configuration file.

For example, to force a reload of a runner’s configuration file, run:

For graceful shutdowns:

Do not use killall or pkill for graceful shutdowns if you are using shellor docker executors. This can cause improper handling of the signals due to subprocessessbeing killed as well. Use it only on the main process handling the jobs.

If your operating system is configured to automatically restart the service if it fails (which is the default on some platforms) it may automatically restart the runner if it’s shut down by the signals above.

Commands overview

This is what you see if you run gitlab-runner without any arguments:

Below we explain what each command does in detail.

Registration-related commands

Use the following commands to register a new runner, or list and verifythem if they are still registered.

  • gitlab-runner register
These commands support the following arguments:
ParameterDefaultDescription
--configSee the configuration file sectionSpecify a custom configuration file to be used

gitlab-runner register

This command registers your runner in GitLab by using the GitLab Runners API.

The registered runner isadded to the configuration file.You can use multiple configurations in a single installation of GitLab Runner. Executinggitlab-runner register adds a new configuration entry. It doesn’t remove theprevious ones.

Install Gitlab-ce Docker

There are two options to register a runner:

  • interactive.
  • non-interactive.
Runners can be registered directly by using the GitLab Runners API butconfiguration is not generated automatically.

Interactive registration

This command is usually used in interactive mode (default). You areasked multiple questions during a runner’s registration.

This question can be pre-filled by adding arguments when invoking the registration command:

Or by configuring the environment variable before the register command:

To check all possible arguments and environments execute:

Non-interactive registration

It’s possible to use registration in non-interactive / unattended mode.

You can specify the arguments when invoking the registration command:

Or by configuring the environment variable before the register command:

Boolean parameters must be passed in the command line with --key={true false}.

[[runners]] configuration template file

Additional options can be easily configured during runner registration using theconfiguration template file feature.

gitlab-runner list

This command lists all runners saved in theconfiguration file.

gitlab-runner verify

This command checks if the registered runners can connect to GitLab, but itdoesn’t verify if the runners are being used by the GitLab Runner service. Anexample output is:

To remove the old runners that have been removed from GitLab, execute the followingcommand.

This operation cannot be undone. It updates the configuration file, somake sure to have a backup of config.toml before executing it.

gitlab-runner unregister

This command unregisters registered runners by using the GitLab Runners API.

It expects either:

  • A full URL and the runner’s token.
  • The runner’s name.

With the --all-runners option, it unregisters all the attached runners.

Runners can be unregistered directly by using the GitLab Runners API butconfiguration is not modified for the user.

To unregister a specific runner, first get the runner’s details by executinggitlab-runner list:

Then use this information to unregister it, using one of the following commands.

This operation cannot be undone. It updates the configuration file, somake sure to have a backup of config.toml before executing it.

By URL and token

By name

If there is more than one runner with the given name, only the first one is removed.

All runners

Service-related commands

The following commands allow you to manage the runner as a system or userservice. Use them to install, uninstall, start, and stop the runner service.

All service related commands accept these arguments:
ParameterDefaultDescription
--servicegitlab-runnerSpecify custom service name
--configSee the configuration fileSpecify a custom configuration file to use

gitlab-runner install

This command installs GitLab Runner as a service. It accepts different sets ofarguments depending on which system it’s run on.

When run on Windows or as super-user, it accepts the --user flag whichallows you to drop privileges of builds run with the shell executor.
ParameterDefaultDescription
--servicegitlab-runnerSpecify service name to use
--configSee the configuration fileSpecify a custom configuration file to use
--syslogtrue (for non systemd systems)Specify if the service should integrate with system logging service
--working-directorythe current directorySpecify the root directory where all data is stored when builds are run with the shell executor
--userrootSpecify the user that executes the builds
--passwordnoneSpecify the password for the user that executes the builds
Install gitlab ce docker online

gitlab-runner uninstall

This command stops and uninstalls GitLab Runner from being run as anservice.

gitlab-runner start

This command starts the GitLab Runner service.

gitlab-runner stop

This command stops the GitLab Runner service.

gitlab-runner restart

This command stops and then starts the GitLab Runner service.

gitlab-runner status

This command prints the status of the GitLab Runner service. The exit code is zero when the service is running and non-zero when the service is not running.

Multiple services

By specifying the --service flag, it is possible to have multiple GitLabRunner services installed, with multiple separate configurations.

Run-related commands

This command allows to fetch and process builds from GitLab.

gitlab-runner run

This is main command that is executed when GitLab Runner is started as aservice. It reads all defined runners from config.toml and tries to run allof them.

The command is executed and works until it receives a signal.

It accepts the following parameters.
ParameterDefaultDescription
--configSee configuration-fileSpecify a custom configuration file to be used
--working-directorythe current directorySpecify the root directory where all data is stored when builds run with the shell executor
--userthe current userSpecify the user that executes builds
--syslogfalseSend all logs to SysLog (Unix) or EventLog (Windows)
--listen-addressemptyAddress (<host>:<port>) on which the Prometheus metrics HTTP server should be listening

gitlab-runner run-single

This is a supplementary command that can be used to run only a single buildfrom a single GitLab instance. It doesn’t use any configuration file andrequires to pass all options either as parameters or environment variables.The GitLab URL and Runner token need to be specified too.

For example:

You can see all possible configuration options by using the --help flag:

You can use the --max-builds option to control how many builds the runner executes before exiting. Thedefault of 0 means that the runner has no build limit and jobs run forever.

You can also use the --wait-timeout option to control how long the runner waits for a job beforeexiting. The default of 0 means that the runner has no timeout and waits forever between jobs.

gitlab-runner exec

Not all features of .gitlab-ci.yml are supported by exec. Pleasecheck what exactly is supported in the limitations of gitlab-runner execsection.

This command allows you to run builds locally, trying to replicate the CIenvironment as much as possible. It doesn’t need to connect to GitLab, insteadit reads the local .gitlab-ci.yml and creates a new build environment inwhich all the build steps are executed.

This command is useful for fast checking and verifying .gitlab-ci.yml as wellas debugging broken builds since everything is run locally.

When executing exec you need to specify the executor and the job name that ispresent in .gitlab-ci.yml. The command should be executed from the rootdirectory of your Git repository that contains .gitlab-ci.yml.

gitlab-runner exec clones the current state of the local Git repository.Make sure you have committed any changes you want to test beforehand.

For example, the following command executes the job named tests locallyusing a shell executor:

To see a list of available executors, run:

To see a list of all available options for the shell executor, run:

If you want to use the docker executor with the exec command, use that incontext of docker-machine shell or boot2docker shell. This is required toproperly map your local directory to the directory inside the Docker container.

Limitations of gitlab-runner exec

With the current implementation of exec, some of the features of GitLab CI/CDmay not work or may work partially.

We’re currently thinking about how to replace current exec implementation,to make it fully compatible with all features. Please track the issuefor more details.

Compatibility table - features based on .gitlab-ci.yml

The following features are supported. If a feature is not listed in this table, it is not supported.
GitLab CI featureAvailable with execComments
imageyesExtended configuration (name, entrypoint) are also supported.
servicesyesExtended configuration (name, alias, entrypoint, command) are also supported.
before_scriptyesSupports both global and job-level before_script.
after_scriptpartiallyGlobal after_script is not supported. Only job-level after_script; only commands are taken into consideration, when is hardcoded to always.
variablesyesSupports default (partially), global and job-level variables; default variables are pre-set as can be seen in https://gitlab.com/gitlab-org/gitlab-runner/blob/master/helpers/gitlab_ci_yaml_parser/parser.go#L147.
cachepartiallyRegarding the specific configuration it may or may not work as expected.
YAML featuresyesAnchors (&), aliases (*), map merging (<<) are part of YAML specification and are handled by the parser.
pagespartiallyJob’s script is executed if explicitly asked, but it doesn’t affect pages state, which is managed by GitLab.
Compatibility table - features based on variables
GitLab CI featureAvailable with execComments
GIT_STRATEGYyes
GIT_CHECKOUTyes
GIT_SUBMODULE_STRATEGYyes
GET_SOURCES_ATTEMPTSyes
ARTIFACT_DOWNLOAD_ATTEMPTSnoArtifacts are not supported.
RESTORE_CACHE_ATTEMPTSyes
GIT_DEPTHyes
Compatibility table - other features
GitLab CI featureAvailable with execComments
Secret Variablesno
triggersno
schedulesno
job timeoutnoHardcoded to 1 hour.
[ci skip]no

Other requirements and limitations

gitlab-runner exec docker can only be used when Docker is installed locally.This is needed because GitLab Runner is using host-bind volumes to access theGit sources.

Internal commands

GitLab Runner is distributed as a single binary and contains a few internalcommands that are used during builds.

gitlab-runner artifacts-downloader

Download the artifacts archive from GitLab.

gitlab-runner artifacts-uploader

Upload the artifacts archive to GitLab.

Install Docker Gitlab Ce

gitlab-runner cache-archiver

Create a cache archive, store it locally or upload it to an external server.

gitlab-runner cache-extractor

Restore the cache archive from a locally or externally stored file.

Troubleshooting

Below are some common pitfalls.

Access Denied when running the service-related commands

Usually the service related commands requireadministrator privileges:

  • On Unix (Linux, macOS, FreeBSD) systems, prefix gitlab-runner with sudo
  • On Windows systems use the elevated command prompt.Run an Administrator command prompt.The simplest way is to write Command Prompt in the Windows search field,right click and select Run as administrator. You are asked to confirmthat you want to execute the elevated command prompt.

Help & feedback

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