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77 lines
2.8 KiB
Markdown
77 lines
2.8 KiB
Markdown
Use the Docker plugin to build and push Docker images to a registry.
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The following parameters are used to configure this plugin:
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* `registry` - authenticates to this registry
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* `username` - authenticates with this username
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* `password` - authenticates with this password
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* `email` - authenticates with this email
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* `repo` - repository name for the image
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* `tag` - repository tag for the image
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* `insecure` - enable insecure communication to this registry
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* `storage_driver` - use `aufs`, `devicemapper`, `btrfs` or `overlay` driver
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The following is a sample Docker configuration in your .drone.yml file:
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```yaml
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publish:
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docker:
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username: kevinbacon
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password: $$DOCKER_PASSWORD
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email: kevin.bacon@mail.com
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repo: foo/bar
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tag: latest
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file: Dockerfile
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insecure: false
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```
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You may want to dynamically tag your image. Use the `$$BRANCH`, `$$COMMIT` and `$$BUILD_NUMBER` variables to tag your image with the branch, commit sha or build number:
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```yaml
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publish:
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docker:
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username: kevinbacon
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password: $$DOCKER_PASSWORD
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email: kevin.bacon@mail.com
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repo: foo/bar
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tag: $$BRANCH
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```
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## Troubleshooting
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For detailed output you can set the `DOCKER_LAUNCH_DEBUG` environment variable in your plugin configuration. This starts Docker with verbose logging enabled.
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```
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publish:
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docker:
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environment:
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- DOCKER_LAUNCH_DEBUG=true
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```
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## Known Issues
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There are known issues when attempting to run this plugin on CentOS, RedHat, and Linux installations that do not have a supported storage driver installed. You can check by running `docker info | grep 'Storage Driver:'` on your host machine. If the storage driver is not `aufs` or `overlay` you will need to re-configure your host machine.
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This error occurs when trying to use the default `aufs` storage Driver but aufs is not installed:
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```
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level=fatal msg="Error starting daemon: error initializing graphdriver: driver not supported
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```
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This error occurs when trying to use the `overlay` storage Driver but overlay is not installed:
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```
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level=error msg="'overlay' not found as a supported filesystem on this host.
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Please ensure kernel is new enough and has overlay support loaded."
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level=fatal msg="Error starting daemon: error initializing graphdriver: driver not supported"
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```
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This error occurs when using CentOS or RedHat which default to the `devicemapper` storage driver:
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```
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level=error msg="There are no more loopback devices available."
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level=fatal msg="Error starting daemon: error initializing graphdriver: loopback mounting failed"
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Cannot connect to the Docker daemon. Is 'docker -d' running on this host?
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```
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The above issue can be resolved by setting `storage_driver: vfs` in the `.drone.yml` file. This may work, but will have very poor performance as discussed [here](https://github.com/rancher/docker-from-scratch/issues/20).
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