mirror of
https://github.com/thegeeklab/wp-docker-buildx.git
synced 2024-11-13 22:50:41 +00:00
221 lines
7.0 KiB
Markdown
221 lines
7.0 KiB
Markdown
Use the Docker plugin to build and push Docker images to a public or even a
|
|
private registry.
|
|
|
|
## Config
|
|
|
|
The following parameters are used to configure the plugin:
|
|
|
|
* **registry** - authenticates to this registry
|
|
* **username** - authenticates with this username
|
|
* **password** - authenticates with this password
|
|
* **email** - authenticates with this email
|
|
* **repo** - repository name for the image
|
|
* **tag** - repository tag for the image
|
|
* **file** - dockerfile to be used, defaults to Dockerfile
|
|
* **context** - the context path to use, defaults to root of the git repo
|
|
* **insecure** - enable insecure communication to this registry
|
|
* **mirror** - use a mirror registry instead of pulling images directly from the central Hub
|
|
* **bip** - use for pass bridge ip
|
|
* **dns** - set custom dns servers for the container
|
|
* **storage_driver** - use `aufs`, `devicemapper`, `btrfs` or `overlay` driver
|
|
* **storage_path** - location of docker daemon storage on disk
|
|
* **build_args** - [build arguments](https://docs.docker.com/engine/reference/commandline/build/#set-build-time-variables-build-arg) to pass to `docker build`
|
|
* **mtu** - custom [mtu settings](https://docs.docker.com/v1.8/articles/networking/#docker0) when starting the docker daemon
|
|
|
|
The following secret values can be set to configure the plugin.
|
|
|
|
* **DOCKER_REGISTRY** - corresponds to **registry**
|
|
* **DOCKER_USERNAME** - corresponds to **username**
|
|
* **DOCKER_PASSWORD** - corresponds to **password**
|
|
* **DOCKER_EMAIL** - corresponds to **email**
|
|
|
|
It is highly recommended to put the **DOCKER_USERNAME**, **DOCKER_PASSWORD**
|
|
and **DOCKER_EMAIL** into secrets so it is not exposed to users. This can be
|
|
done using the drone-cli.
|
|
|
|
```bash
|
|
drone secret add --image=plugins/docker \
|
|
octocat/hello-world DOCKER_USERNAME kevinbacon
|
|
|
|
drone secret add --image=plugins/docker \
|
|
octocat/hello-world DOCKER_PASSWORD pa55word
|
|
|
|
drone secret add --image=plugins/docker \
|
|
octocat/hello-world DOCKER_EMAIL kevin.bacon@mail.com
|
|
```
|
|
|
|
Then sign the YAML file after all secrets are added.
|
|
|
|
```bash
|
|
drone sign octocat/hello-world
|
|
```
|
|
|
|
See [secrets](http://readme.drone.io/0.5/usage/secrets/) for additional
|
|
information on secrets
|
|
|
|
## Examples
|
|
|
|
Simple publishing of a docker container:
|
|
|
|
```yaml
|
|
pipeline:
|
|
docker:
|
|
image: plugins/docker
|
|
username: kevinbacon
|
|
password: pa55word
|
|
email: kevin.bacon@mail.com
|
|
repo: foo/bar
|
|
tag: latest
|
|
file: Dockerfile
|
|
insecure: false
|
|
```
|
|
|
|
Publish and image with multiple tags:
|
|
|
|
```yaml
|
|
pipeline:
|
|
docker:
|
|
image: plugins/docker
|
|
username: kevinbacon
|
|
password: pa55word
|
|
email: kevin.bacon@mail.com
|
|
repo: foo/bar
|
|
tags:
|
|
- latest
|
|
- 1.0.1
|
|
- "1.0"
|
|
```
|
|
|
|
Build an image with additional arguments:
|
|
|
|
```yaml
|
|
pipeline:
|
|
docker:
|
|
image: plugins/docker
|
|
username: kevinbacon
|
|
password: pa55word
|
|
email: kevin.bacon@mail.com
|
|
repo: foo/bar
|
|
build_args:
|
|
- HTTP_PROXY=http://yourproxy.com
|
|
```
|
|
|
|
## Caching
|
|
|
|
The Drone build environment is, by default, ephemeral meaning that you layers
|
|
are not saved between builds. There are two methods for caching your layers.
|
|
|
|
### Graph directory caching
|
|
|
|
This is the preferred method when using the `overlay` or `aufs` storage
|
|
drivers. Just use Drone's caching feature to backup and restore the directory
|
|
`/drone/docker`, as shown in the following example:
|
|
|
|
```yaml
|
|
pipeline:
|
|
sftp_cache:
|
|
image: plugins/sftp-cache
|
|
restore: true
|
|
mount: /drone/docker
|
|
|
|
docker:
|
|
image: plugins/docker
|
|
storage_path: /drone/docker
|
|
username: kevinbacon
|
|
password: pa55word
|
|
email: kevin.bacon@mail.com
|
|
repo: foo/bar
|
|
tags:
|
|
- latest
|
|
- "1.0.1"
|
|
|
|
sftp_cache:
|
|
image: plugins/sftp-cache
|
|
rebuild: true
|
|
mount: /drone/docker
|
|
```
|
|
|
|
## Troubleshooting
|
|
|
|
For detailed output you can set the `DOCKER_LAUNCH_DEBUG` environment variable
|
|
in your plugin configuration. This starts Docker with verbose logging enabled.
|
|
|
|
```yaml
|
|
pipeline:
|
|
docker:
|
|
environment:
|
|
- DOCKER_LAUNCH_DEBUG=true
|
|
```
|
|
|
|
## Known Issues
|
|
|
|
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.
|
|
|
|
This error occurs when trying to use the default `aufs` storage Driver but aufs
|
|
is not installed:
|
|
|
|
```
|
|
level=fatal msg="Error starting daemon: error initializing graphdriver: driver not supported
|
|
```
|
|
|
|
This error occurs when trying to use the `overlay` storage Driver but overlay
|
|
is not installed:
|
|
|
|
```
|
|
level=error msg="'overlay' not found as a supported filesystem on this host.
|
|
Please ensure kernel is new enough and has overlay support loaded."
|
|
level=fatal msg="Error starting daemon: error initializing graphdriver: driver not supported"
|
|
```
|
|
|
|
This error occurs when using CentOS or RedHat which default to the
|
|
`devicemapper` storage driver:
|
|
|
|
```
|
|
level=error msg="There are no more loopback devices available."
|
|
level=fatal msg="Error starting daemon: error initializing graphdriver: loopback mounting failed"
|
|
Cannot connect to the Docker daemon. Is 'docker -d' running on this host?
|
|
```
|
|
|
|
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).
|
|
|
|
This error occurs when using Debian wheezy or jessie and cgroups memory
|
|
features are not configured at the kernel level:
|
|
|
|
```
|
|
time="2015-12-17T08:06:57Z" level=debug msg="Mounting none /sys/fs/cgroup/blkio cgroup blkio"
|
|
time="2015-12-17T08:06:57Z" level=debug msg="Mounting none /sys/fs/cgroup/perf_event cgroup perf_event"
|
|
time="2015-12-17T08:06:57Z" level=debug msg="Mounting none /sys/fs/cgroup/cpuset cgroup cpuset"
|
|
time="2015-12-17T08:06:57Z" level=debug msg="Mounting none /sys/fs/cgroup/cpu,cpuacct cgroup cpu,cpuacct"
|
|
time="2015-12-17T08:06:57Z" level=debug msg="Creating /sys/fs/cgroup/memory"
|
|
time="2015-12-17T08:06:57Z" level=debug msg="Mounting none /sys/fs/cgroup/memory cgroup memory"
|
|
time="2015-12-17T08:06:57Z" level=fatal msg="no such file or directory"
|
|
```
|
|
|
|
The above issue can be resolved by editing your `grub.cfg` and adding
|
|
`cgroup_enable=memory swapaccount=1` to you kernel image. This change should
|
|
look like that afterwards:
|
|
|
|
```
|
|
menuentry 'Debian GNU/Linux, avec Linux 3.16.0-0.bpo.4-amd64' --class debian --class gnu-linux --class gnu --class os {
|
|
load_video
|
|
insmod gzio
|
|
insmod raid
|
|
insmod mdraid09
|
|
insmod part_msdos
|
|
insmod part_msdos
|
|
insmod part_msdos
|
|
insmod ext2
|
|
set root='(mduuid/dab6cffad124a3d7a4d2adc226fd5302)'
|
|
search --no-floppy --fs-uuid --set=root a4085974-c507-4993-a9ed-bdc17e375cad
|
|
echo 'Chargement de Linux 3.16.0-0.bpo.4-amd64 ...'
|
|
linux /boot/vmlinuz-3.16.0-0.bpo.4-amd64 root=/dev/md1 ro cgroup_enable=memory swapaccount=1 quiet
|
|
echo 'Chargement du disque mémoire initial ...'
|
|
initrd /boot/initrd.img-3.16.0-0.bpo.4-amd64
|
|
```
|