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55 lines
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3.6 KiB
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== Docker Registry Configuration
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NOTE: Docker authentication is disabled by default. To enable see link:{{book.installguide.profile.link}}[{{book.installguide.profile.name}}].
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This section describes how you can configure a Docker registry to use {{book.project.name}} as its authentication server.
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Fore more information on how to set up and configure a Docker registry, see the link:https://docs.docker.com/registry/configuration/[Docker Registry Configuration Guide].
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=== Docker Registry Configuration File Installation
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For users with more advanced docker registry configurations, it is generally recommended to provide your own registry configuration file. The {{book.project.name}} docker provider supports this mechanism via the _Registry Config File_ Format Option. Choosing this option will generate output similar to the following:
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auth:
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token:
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realm: http://localhost:8080/auth/auth/realms/master/protocol/docker-v2/auth
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service: docker-test
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issuer: http://localhost:8080/auth/auth/realms/master
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This output can then be copied into any existing registry config file. See the link:https://docs.docker.com/registry/configuration/[registry config file specification] for more information on how the file should be set up, or start with href:https://github.com/docker/distribution/blob/master/cmd/registry/config-example.yml[a basic example].
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WARNING: Don't forget to configure the `rootcertbundle` field with the location of the {{book.project.name}} realm's pulic certificate. The auth configuration will not work without this argument.
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=== Docker Registry Environment Variable Override Installation
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Often times it is appropriate to use a simple environment variable override for develop or POC Docker registries. While this apporach is usually not recommended for production use, it can be helpful when one requires quick-and-dirty way to stand up a registry. Simply use the _Variable Override_ Format Option from the client installation tab, and an output should appear like the one below:
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REGISTRY_AUTH_TOKEN_REALM: http://localhost:8080/auth/auth/realms/master/protocol/docker-v2/auth
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REGISTRY_AUTH_TOKEN_SERVICE: docker-test
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REGISTRY_AUTH_TOKEN_ISSUER: http://localhost:8080/auth/auth/realms/master
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WARNING: Don't forget to configure the `REGISTRY_AUTH_TOKEN_ROOTCERTBUNDLE` override with the location of the {{book.project.name}} realm's pulic certificate. The auth configuration will not work without this argument.
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=== Docker Compose YAML File
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WARNING: This installation method is meant to be an easy way to get a docker registry authenticating against a keycloak server. It is intended for development purposes only and should never be used in a production or production-like environment.
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The zip file installation mechanism provides a quickstart for developers who want to understand how the keycloak server can interact with the docker registry. In order to configure:
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1. From the desired realm, create a client configuration. At this point you won't have a docker registry - the quickstart will take care of that part.
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1. Choose the "Docker Compose YAML" option from the installation tab and download the .zip file
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1. Unzip the archive to the desired location, and open the directory.
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1. Start the docker registry with `docker-compose up`
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INFO: it is recommended that you configure the docker registry client in a realm other than 'master', since the HTTP Basic auth flow will not present forms.
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Once the above configuration has taken place, and the keycloak server and docker registry are running, docker authentication should be successful:
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[user ~]# docker login localhost:5000 -u $username
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Password: *******
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Login Succeeded |