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git-sync
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A sidecar app which clones a git repo and keeps it in sync with the upstream.
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README.md

git-sync

git-sync is a simple command that pulls a git repository into a local directory. It is a perfect "sidecar" container in Kubernetes - it can periodically pull files down from a repository so that an application can consume them.

git-sync can pull one time, or on a regular inteval. It can pull from the HEAD of a branch, or from a git tag, or from a specific git hash. It will only re-pull if the target of the run has changed in the upstream repository. When it re-pulls, it updates the destination directory atomically. In order to do this, it uses a git worktree in a subdirectory of the --root and flips a symlink.

Usage

# build the container
make container REGISTRY=registry TAG=tag

# run the container
docker run -d \
    -v /tmp/git-data:/git \
    registry/git-sync:tag \
        --repo=https://github.com/kubernetes/git-sync
        --branch=master
        --wait=30

# run an nginx container to serve the content
docker run -d \
    -p 8080:80 \
    -v /tmp/git-data:/usr/share/nginx/html \
    nginx

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