container-registry/git-repo-updater
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Updated Approach to Scheduling

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This commit is contained in:
Nicole Rappe 2023-09-22 00:48:25 -06:00
parent 4fdaf788b5
commit 9038a7c9b2
4 changed files with 47 additions and 49 deletions
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12
Dockerfile
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@ -2,17 +2,13 @@ FROM ubuntu:latest
# Install necessary packages # Install necessary packages
RUN apt-get update && \ RUN apt-get update && \
apt-get install -y git curl cron rsync apt-get install -y git curl rsync
# Add script and cronjob # Add script
COPY repo_watcher.sh /root/Repo_Watcher/repo_watcher.sh COPY repo_watcher.sh /root/Repo_Watcher/repo_watcher.sh
COPY crontab.txt /crontab.txt
# Make script executable # Make script executable
RUN chmod +x /root/Repo_Watcher/repo_watcher.sh RUN chmod +x /root/Repo_Watcher/repo_watcher.sh
# Apply cron job # Start script
RUN crontab /crontab.txt CMD ["/bin/bash", "-c", "/root/Repo_Watcher/repo_watcher.sh"]
# Start cron in foreground
CMD ["cron", "-f"]

4
README.md
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@ -1,4 +0,0 @@
**Basic Docker Run Command**:
```
docker run -e REPO_URL='https://your.git.repo.url' -e COPY_DIR='/your/copy/dir' -e NTFY_URL='https://your.ntfy.url' -e GIT_USERNAME='your_username' -e GIT_PASSWORD='your_password' git_repo_updater
```

1
crontab.txt
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@ -1 +0,0 @@
* * * * * /bin/bash /root/Repo_Watcher/repo_watcher.sh

63
repo_watcher.sh
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@ -1,45 +1,52 @@
#!/bin/bash #!/bin/bash
# Fetch environment variables while true; do
repo_url=$REPO_URL
copy_dir=$COPY_DIR
ntfy_url=$NTFY_URL
git_username=$GIT_USERNAME
git_password=$GIT_PASSWORD
# Set Git credentials # Fetch environment variables
git config --global credential.helper 'store --file /tmp/git-credentials' repo_url=$REPO_URL
echo "url=$repo_url" > /tmp/git-credentials copy_dir=$COPY_DIR
echo "username=$git_username" >> /tmp/git-credentials ntfy_url=$NTFY_URL
echo "password=$git_password" >> /tmp/git-credentials git_username=$GIT_USERNAME
git_password=$GIT_PASSWORD
# Navigate to the watcher directory # Set Git credentials
cd /root/Repo_Watcher git config --global credential.helper 'store --file /tmp/git-credentials'
echo "url=$repo_url" > /tmp/git-credentials
echo "username=$git_username" >> /tmp/git-credentials
echo "password=$git_password" >> /tmp/git-credentials
# Clone the repo if it doesn't exist # Navigate to the watcher directory
if [ ! -d "repo" ]; then cd /root/Repo_Watcher
# Clone the repo if it doesn't exist
if [ ! -d "repo" ]; then
git clone $repo_url repo git clone $repo_url repo
fi fi
cd repo cd repo
# Fetch the latest changes # Fetch the latest changes
git fetch origin main git fetch origin main
# Check if the local repository is behind the remote # Check if the local repository is behind the remote
LOCAL=$(git rev-parse @) LOCAL=$(git rev-parse @)
REMOTE=$(git rev-parse @{u}) REMOTE=$(git rev-parse @{u})
BASE=$(git merge-base @ @{u}) BASE=$(git merge-base @ @{u})
if [ $LOCAL = $REMOTE ]; then if [ $LOCAL = $REMOTE ]; then
echo "Up-to-date" echo "Up-to-date"
elif [ $LOCAL = $BASE ]; then elif [ $LOCAL = $BASE ]; then
echo "Need to pull" echo "Need to pull"
git pull origin main git pull origin main
rsync -av --delete ./ $copy_dir rsync -av --delete ./ $copy_dir
curl -d "Data updated from Git repo" $ntfy_url curl -d "Data updated from Git repo" $ntfy_url
elif [ $REMOTE = $BASE ]; then elif [ $REMOTE = $BASE ]; then
echo "Need to push" echo "Need to push"
else else
echo "Data diverged" echo "Data diverged"
fi fi
# Wait for 5 seconds before the next iteration
sleep 5
done