adding script
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16
scripts/README.md
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16
scripts/README.md
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Make executable:
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```
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sudo chmod +x dccd.sh
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```
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Example:
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```
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./dccd.sh -b main -d /home/mafyuh/Auto-Homelab -p -f 'arrs'
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```
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Crontab:
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```
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*/30 * * * * /home/mafyuh/dccd.sh -b main -d /home/mafyuh/Auto-Homelab -l /tmp/dccd.txt -p -f 'arrs'
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```
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View Logs:
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```
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cat /tmp/dccd.txt
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```
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190
scripts/dccd.sh
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scripts/dccd.sh
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#!/bin/bash
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########################################
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# Default configuration values
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########################################
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BASE_DIR="" # Initialize empty variable
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LOG_FILE="/tmp/dccd.log" # Default log file name
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PRUNE=0 # Default prune setting
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REMOTE_BRANCH="main" # Default remote branch name
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########################################
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# Functions
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########################################
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log_message() {
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local message="$1"
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echo "$(date +'%Y-%m-%d %H:%M:%S') - $message" | tee -a "$LOG_FILE"
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}
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update_compose_files() {
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local dir="$1"
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local folder_pattern="$2" # Added parameter for folder pattern
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cd "$dir" || { log_message "ERROR: Directory doesn't exist, exiting..."; exit 127; }
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# Make sure we're in a git repo
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if [ ! -d .git ]; then
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log_message "ERROR: Directory is not a git repository, exiting..."
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exit 1
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else
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log_message "INFO: Git repository found!"
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fi
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# Check if there are any changes in the Git repository
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if ! git fetch origin; then
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log_message "ERROR: Unable to fetch changes from the remote repository (the server may be offline or unreachable)"
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exit 1
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fi
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local_hash=$(git rev-parse HEAD)
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remote_hash=$(git rev-parse "origin/$REMOTE_BRANCH")
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log_message "INFO: Local hash is $local_hash"
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log_message "INFO: Remote hash is $remote_hash"
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# Check for uncommitted local changes
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uncommitted_changes=$(git status --porcelain)
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if [ -n "$uncommitted_changes" ]; then
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log_message "ERROR: Uncommitted changes detected in $dir, exiting..."
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exit 1
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fi
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# Check if the local hash matches the remote hash
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if [ "$local_hash" != "$remote_hash" ]; then
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log_message "STATE: Hashes don't match, updating..."
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# Pull any changes in the Git repository
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if ! git pull --quiet origin "$REMOTE_BRANCH"; then
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log_message "ERROR: Unable to pull changes from the remote repository (the server may be offline or unreachable)"
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exit 1
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fi
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# Loop through directories matching the specified pattern
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find "$dir" -type d -name "$folder_pattern" | while IFS= read -r folder; do
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log_message "INFO: Found folder matching pattern: $folder"
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# If EXCLUDE is set and the directory matches the exclude pattern, skip
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if [ -n "$EXCLUDE" ] && [[ "$folder" == *"$EXCLUDE"* ]]; then
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log_message "INFO: Excluding directory $folder"
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continue
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fi
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# Go into the directory
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cd "$folder" || { log_message "ERROR: Failed to enter directory $folder"; continue; }
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# Redeploy compose file in this directory
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log_message "STATE: Redeploying compose file in directory: $folder"
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docker compose up -d --quiet-pull
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# Go back to the original directory
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cd "$dir" || { log_message "ERROR: Failed to return to directory $dir"; exit 1; }
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done
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else
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log_message "STATE: Hashes match, so nothing to do"
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fi
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# Check if PRUNE is provided
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if [ $PRUNE -eq 1 ]; then
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log_message "STATE: Pruning images"
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docker image prune --all --force
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fi
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log_message "STATE: Done!"
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}
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usage() {
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printf "
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Usage: $0 [OPTIONS]
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Options:
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-b <name> Specify the remote branch to track (default: main)
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-d <path> Specify the base directory of the git repository (required)
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-h Show this help message
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-l <path> Specify the path to the log file (default: /tmp/dccd.log)
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-p Specify if you want to prune docker images (default: don't prune)
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-x <path> Exclude directories matching the specified pattern (relative to the base directory)
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-f <pattern> Specify the pattern for folder names to match
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Example: /path/to/dccd.sh -b master -d /path/to/git_repo -l /tmp/dccd.txt -p -f 'arrs'
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"
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exit 1
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}
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########################################
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# Options
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########################################
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while getopts ":b:d:hl:px:f:" opt; do
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case "$opt" in
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b)
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REMOTE_BRANCH="$OPTARG"
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;;
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d)
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BASE_DIR="$OPTARG"
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;;
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h)
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usage
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;;
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l)
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LOG_FILE="$OPTARG"
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;;
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p)
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PRUNE=1
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;;
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x)
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EXCLUDE="$OPTARG"
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;;
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f)
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FOLDER_PATTERN="$OPTARG"
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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usage
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;;
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:)
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echo "Option -$OPTARG requires an argument." >&2
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usage
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;;
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esac
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done
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########################################
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# Script starts here
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########################################
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touch "$LOG_FILE"
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{
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echo "########################################"
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echo "# Starting!"
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echo "########################################"
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} >> "$LOG_FILE"
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# Check if BASE_DIR is provided
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if [ -z "$BASE_DIR" ]; then
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log_message "ERROR: The base directory (-d) is required, exiting..."
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usage
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else
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log_message "INFO: Base directory is set to $BASE_DIR"
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fi
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# Check if REMOTE_BRANCH is provided
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if [ -z "$REMOTE_BRANCH" ]; then
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log_message "INFO: The remote branch isn't specified, so using $REMOTE_BRANCH"
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else
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log_message "INFO: The remote branch is set to $REMOTE_BRANCH"
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fi
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# Check if EXCLUDE is provided
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if [ -n "$EXCLUDE" ]; then
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log_message "INFO: Will be excluding pattern $EXCLUDE"
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fi
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# Check if FOLDER_PATTERN is provided
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if [ -z "$FOLDER_PATTERN" ]; then
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log_message "ERROR: The folder pattern (-f) is required, exiting..."
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usage
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else
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log_message "INFO: Folder pattern is set to $FOLDER_PATTERN"
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fi
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update_compose_files "$BASE_DIR" "$FOLDER_PATTERN"
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