escripts/docker_backups/docker_backups.sh
Eugene Amos 2923de827e docker backups
> Updating README
> Adding bash script
2023-12-05 12:56:53 -08:00

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Bash
Executable File

#!/bin/bash
#
#
# Make sure to set username to your own.
# You will need to change it in (3) places.
#
# [USERNAME]
#
#
# Location of the log file
LOGFILE="/home/[USERNAME]/scripts/backups/docker_backups_logs/docker_backups.log"
# Location of backup files. This can be a mapped NAS location if needed.
BACKUPLOCATION="/home/[USERNAME]/server_backups/docker_zips/"
# Generate a timestamp
timestamp=$(date +"%Y-%m-%d")
# Capture the start time
start_time=$(date +%s)
# Log the start of the backup
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Starting backup" | tee -a "$LOGFILE"
# Step 0: Delete backups older than two weeks
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Deleting backups older than two weeks..." | tee -a "$LOGFILE"
sudo find "$BACKUPLOCATION" -name "docker_backups_*.tar.gz" -mtime +14 -exec rm {} \; 2>&1 | tee -a "$LOGFILE"
# Capture the list of running Docker containers
running_containers=$(sudo docker ps --format "{{.Names}}")
# Check if there are any running containers
echo " " | tee -a "$LOGFILE"
echo " " | tee -a "$LOGFILE"
if [ -z "$running_containers" ]; then
echo "[$(date +"%Y-%m-%d %H:%M:%S")] No Docker containers are running." | tee -a "$LOGFILE"
else
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Currently running Docker containers:" | tee -a "$LOGFILE"
echo "$running_containers" | tee -a "$LOGFILE"
# Step 1: Stop all running Docker containers
echo " " | tee -a "$LOGFILE"
echo " " | tee -a "$LOGFILE"
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Stopping all running Docker containers..." | tee -a "$LOGFILE"
sudo docker stop $running_containers 2>&1 | tee -a "$LOGFILE"
fi
# Step 2: Create a tarball (zip) of your custom Docker folder with a timestamp
echo " " | tee -a "$LOGFILE"
echo " " | tee -a "$LOGFILE"
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Creating tarball backup of custom Docker directory..." | tee -a "$LOGFILE"
# Create backup in backup location defined above
sudo tar czvf "${BACKUPLOCATION}docker_backups_${timestamp}.tar.gz" /home/[USERNAME]/docker 2>&1 | tee -a "$LOGFILE"
# Step 3: Restart all previously running Docker containers if any were running
if [ -n "$running_containers" ]; then
echo " " | tee -a "$LOGFILE"
echo " " | tee -a "$LOGFILE"
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Restarting all previously running Docker containers..." | tee -a "$LOGFILE"
sudo docker start $running_containers 2>&1 | tee -a "$LOGFILE"
fi
# Capture the end time
end_time=$(date +%s)
# Calculate the duration in minutes and remaining seconds
duration=$((end_time - start_time))
minutes=$((duration / 60))
seconds=$((duration % 60))
# Log and display the duration
echo " " | tee -a "$LOGFILE"
echo " " | tee -a "$LOGFILE"
echo "[$(date +"%Y-%m-%d %H:%M:%S")] Backup process completed in ${minutes} minutes, ${seconds} seconds." | tee -a "$LOGFILE"