81 lines
2.8 KiB
Markdown
81 lines
2.8 KiB
Markdown
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# rsync docker image.
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A simple alpine based docker image for rsync and ssh deployments.
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## Using this image
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This image has two primary uses. Firstly, as a deployment image for GitLab CI runs. Secondly, as a base image for other images.
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### gitlab-ci.yml
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```yml
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image: drinternet/rsync:1.0.1
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...
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before_script:
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- source agent-autostart "$CI_PROJECT_ID-$CI_PIPELINE_ID-$_CI_CONCURRENT_ID"
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- hosts-add "$SSH_KNOWN_HOSTS"
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after_script:
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- agent-stop "$CI_PROJECT_ID-$CI_PIPELINE_ID-$_CI_CONCURRENT_ID"
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```
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### Base image in a `Dockerfile
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```dockerfile
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FROM drinternet/rsync:1.0.1
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COPY some/file or/whatever
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```
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## Inbuilt commands.
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This base image also includes a few shell scripts, to help with managing SSH agents and known hosts files.
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### SSH Agent Management
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#### agent-start
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This command starts the SSH agent, if it isn't already started (SSH_AGENT_PID set or ssh agent ID file found).
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It takes one optional argument, for the name of the agent to be started. Defaults to "default".
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This program needs to be source'd to work correctly.
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`source agent-start "default"`
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#### agent-stop
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This command stops the SSH agent, if it is started (SSH_AGENT_PID set or ssh agent ID file found).
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It takes one optional argument, for the name of the agent to be stopped. Defaults to "default".
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`agent-stop "my-agent-name"`
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#### agent-add
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This command adds a key to the currently running SSH agent. The key is taken from stdin, and the agent used is that in SSH_AGENT_PID.
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#### agent-autoadd
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This command starts the SSH agent and loads the private key from the "SSH_PRIVATE_KEY" environment var. The command takes one optional argument, for the name of the agent to be started. Defaults to "default".
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As with agent-start, this command needs to be sourced.
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### known_hosts management
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#### hosts-clear
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This command truncates the known_hosts file and sets its permissions.
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#### hosts-add
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This command adds an entry to the known hosts file, and ensures its permissions are correct. It takes one argument, which is the new key to add.
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## Tags
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Most numeric tags are simple version numbers for the various scripts. However, there are some special tags.
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staging: The latest build from the master branch.
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*-rc: release candidate builds, nearly ready but might contain small changes.
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*-beta: beta builds, still need testing but shouldn't change too much.
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*-alpha: alpha builds, which are likely to change.
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## Example gitlab-ci.yml
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```yml
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image: drinternet/rsync:1.0.1
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stages:
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- deploy
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before_script:
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- source agent-autostart "$CI_PROJECT_ID-$CI_PIPELINE_ID-$_CI_CONCURRENT_ID"
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- hosts-add "$SSH_KNOWN_HOSTS"
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after_script:
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- agent-stop "$CI_PROJECT_ID-$CI_PIPELINE_ID-$_CI_CONCURRENT_ID"
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deploy:
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stage: deploy
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script:
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- rsync -zrSlhaO --chmod=D2775,F664 --delete-after . $FTP_USER@$FTP_HOST:/var/www/deployment/
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```
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