**Purpose**: Docker container running Alpine Linux that automates and improves upon much of the script mentioned in the [Git Repo Updater](https://docs.bunny-lab.io/Scripts/Bash/Git%20Repo%20Updater) document. It offers the additional benefits of checking for updates every 5 seconds instead of every 60 seconds. It also accepts environment variables to provide credentials and notification settings, and can have an infinite number of monitored repositories. ### Deployment You can find the current up-to-date Gitea repository that includes the `docker-compose.yml` and `.env` files that you need to deploy everything [here](https://git.bunny-lab.io/container-registry/-/packages/container/git-repo-updater/latest) ```jsx title="docker-compose.yml" version: '3.3' services: git-repo-updater: privileged: true container_name: git-repo-updater env_file: - stack.env image: git.bunny-lab.io/container-registry/git-repo-updater:latest volumes: - /srv/containers:/srv/containers - /srv/containers/git-repo-updater/Repo_Cache:/root/Repo_Cache restart: always ``` ```jsx title=".env" # Gitea Credentials GIT_USERNAME=nicole.rappe GIT_PASSWORD=USE-AN-APP-PASSWORD # NTFY Push Notification Server URL NTFY_URL=https://ntfy.cyberstrawberry.net/git-repo-updater # Repository/Destination Pairs (Add as Many as Needed) REPO_01="https://${GIT_USERNAME}:${GIT_PASSWORD}@git.bunny-lab.io/bunny-lab/docs.git,/srv/containers/material-mkdocs/docs/docs" REPO_02="https://${GIT_USERNAME}:${GIT_PASSWORD}@git.bunny-lab.io/GitOps/servers.bunny-lab.io.git,/srv/containers/homepage-docker" ``` ### Build / Development If you want to learn how the container was assembled, the related build files are located [here](https://git.cyberstrawberry.net/container-registry/git-repo-updater) ```jsx title="Dockerfile" # Use Alpine as the base image of the container FROM alpine:latest # Install necessary packages RUN apk --no-cache add git curl rsync # Add script COPY repo_watcher.sh /repo_watcher.sh RUN chmod +x /repo_watcher.sh #Create Directory to store Repositories RUN mkdir -p /root/Repo_Cache # Start script (Alpine uses /bin/sh instead of /bin/bash) CMD ["/bin/sh", "-c", "/repo_watcher.sh"] ``` ```jsx title="repo_watcher.sh" #!/bin/sh # Function to process each repo-destination pair process_repo() { FULL_REPO_URL=$1 DESTINATION=$2 # Extract the URL without credentials for logging and notifications CLEAN_REPO_URL=$(echo "$FULL_REPO_URL" | sed 's/https:\/\/[^@]*@/https:\/\//') # Directory to hold the repository locally REPO_DIR="/root/Repo_Cache/$(basename $CLEAN_REPO_URL .git)" # Clone the repo if it doesn't exist, or navigate to it if it does if [ ! -d "$REPO_DIR" ]; then curl -d "Cloning: $CLEAN_REPO_URL" $NTFY_URL git clone "$FULL_REPO_URL" "$REPO_DIR" > /dev/null 2>&1 fi cd "$REPO_DIR" || exit # Fetch the latest changes git fetch origin main > /dev/null 2>&1 # Check if the local repository is behind the remote LOCAL=$(git rev-parse @) REMOTE=$(git rev-parse @{u}) if [ "$LOCAL" != "$REMOTE" ]; then curl -d "Updating: $CLEAN_REPO_URL" $NTFY_URL git pull origin main > /dev/null 2>&1 rsync -av --delete --exclude '.git/' ./ "$DESTINATION" > /dev/null 2>&1 fi } # Main loop while true; do # Iterate over each environment variable matching 'REPO_[0-9]+' env | grep '^REPO_[0-9]\+=' | while IFS='=' read -r name value; do # Split the value by comma and read into separate variables OLD_IFS="$IFS" # Save the original IFS IFS=',' # Set IFS to comma for splitting set -- $value # Set positional parameters ($1, $2, ...) REPO_URL="$1" # Assign first parameter to REPO_URL DESTINATION="$2" # Assign second parameter to DESTINATION IFS="$OLD_IFS" # Restore original IFS process_repo "$REPO_URL" "$DESTINATION" done # Wait for 5 seconds before the next iteration sleep 5 done ```