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Code Issues Releases Wiki Activity

Add some specific examples for registry mirror settings

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Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>
This commit is contained in:
Sven Dowideit 2017-06-12 12:36:04 +10:00
parent d52b995450
commit d0bfdb444e
1 changed files with 39 additions and 2 deletions
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41
docs/os/configuration/docker/index.md
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@ -28,7 +28,7 @@ You can also customize Docker after it's been started using `ros config`.
$ sudo ros config set rancher.docker.storage_driver overlay
```
#### Valid Keys for Docker
#### User Docker settings
Many of the standard Docker daemon arguments can be placed under the `rancher.docker` key. The command needed to start the Docker daemon will be generated based on these arguments. The following arguments are currently supported.
@ -77,7 +77,7 @@ rancher:
storage_driver: overlay
```
#### Valid Keys for System Docker
#### System Docker settings
All daemon arguments shown in the first table are also available to System Docker. The following are also supported.
@ -85,3 +85,40 @@ Key | Value | Default | Description
---|---|---| ---
`extra_args` | List of Strings | `[]` | Arbitrary daemon arguments, appended to the generated command
`environment` | List of Strings (optional) | `[]` |
### Using a pull through registry mirror
There are 3 Docker engines that can be configured to use the pull-through Docker Hub registry mirror cache:
```
#cloud-config
rancher:
bootstrap_docker:
registry_mirror: "http://10.10.10.23:5555"
docker:
registry_mirror: "http://10.10.10.23:5555"
system_docker:
registry_mirror: "http://10.10.10.23:5555"
```
`bootstrap_docker` is used to prepare and initial network and pull any cloud-config options that can be used to configure the final network configuration and System-docker - its very unlikely to pull any images.
A successful pull through mirror cache request by System-docker looks like:
```
[root@rancher-dev rancher]# system-docker pull alpine
Using default tag: latest
DEBU[0201] Calling GET /v1.23/info
> WARN[0201] Could not get operating system name: Error opening /usr/lib/os-release: open /usr/lib/os-release: no such file or directory
WARN[0201] Could not get operating system name: Error opening /usr/lib/os-release: open /usr/lib/os-release: no such file or directory
DEBU[0201] Calling POST /v1.23/images/create?fromImage=alpine%3Alatest
DEBU[0201] hostDir: /etc/docker/certs.d/10.10.10.23:5555
DEBU[0201] Trying to pull alpine from http://10.10.10.23:5555/ v2
DEBU[0204] Pulling ref from V2 registry: alpine:latest
DEBU[0204] pulling blob "sha256:2aecc7e1714b6fad58d13aedb0639011b37b86f743ba7b6a52d82bd03014b78e" latest: Pulling from library/alpine
DEBU[0204] Downloaded 2aecc7e1714b to tempfile /var/lib/system-docker/tmp/GetImageBlob281102233 2aecc7e1714b: Extracting 1.99 MB/1.99 MB
DEBU[0204] Untar time: 0.161064213s
DEBU[0204] Applied tar sha256:3fb66f713c9fa9debcdaa58bb9858bd04c17350d9614b7a250ec0ee527319e59 to 841c99a5995007d7a66b922be9bafdd38f8090af17295b4a44436ef433a2aecc7e1714b: Pull complete
Digest: sha256:0b94d1d1b5eb130dd0253374552445b39470653fb1a1ec2d81490948876e462c
Status: Downloaded newer image for alpine:latest
```