diff --git a/backup_and_restore/backup_docker_container.sh b/backup_and_restore/backup_docker_container.sh index 8b2d39d..6491e8a 100644 --- a/backup_and_restore/backup_docker_container.sh +++ b/backup_and_restore/backup_docker_container.sh @@ -1,26 +1,27 @@ #!/bin/bash -# This script backs up all running Docker containers. +# This script backs up all running Docker containers and their associated volumes. # For each container, it creates a compressed archive file (.tar.gz) containing -# the container's state at the time of execution. -# Backups are stored in a directory called "backup_docker_container". +# the container's state and any named volumes used by the container at the time of execution. +# Backups are stored in a directory called "backup_docker_container" and "backup_docker_volumes". # Each backup file is named with the container name and the current date and time, # making it easy to identify when the backup was taken. # # Usage: -# 1. Save this script to a file, for example: backup_containers.sh -# 2. Make the script executable: chmod +x backup_containers.sh -# 3. Run the script: ./backup_containers.sh +# 1. Save this script to a file, for example: backup_containers_volumes.sh +# 2. Make the script executable: chmod +x backup_containers_volumes.sh +# 3. Run the script: ./backup_containers_volumes.sh # # Automation with Cron: # You can automate the execution of this script and manage old backups with a Cron job: # # 1. To back up all Docker containers every Sunday at midnight: -# 0 0 * * 0 /root/backup_docker_container.sh +# 0 0 * * 0 /root/backup_containers_volumes.sh # # 2. To delete backup files older than 14 days every day at 1 AM: # 0 1 * * * find /root/backup_docker_container/* -mtime +14 -exec rm {} \; -# +# 0 1 * * * find /root/backup_docker_volumes/* -mtime +14 -exec rm {} \; +# # Restoring a backup: # To restore a Docker container from a backup, follow these steps: # @@ -35,20 +36,16 @@ # 3. Start a new container from the restored image: # docker run -d --name new_container_name new_image_name # -# This will launch a new container based on the restored image. -# -# Note: This process does not restore Docker volumes. If your container used volumes, -# you will need to restore or recreate them separately. -# -# This script only backs up running containers at the time of execution. -# It exports only the container's file system (container content) and does not back up -# Docker volumes that may be mounted from the host. +# 4. Restore the Docker volumes using the backed-up volume files. +# Use `docker volume create` and `docker run` to copy data back to the restored volumes. -# Backup directory -backup_dir="backup_docker_container" +# Backup directories +backup_container_dir="backup_docker_container" +backup_volume_dir="backup_docker_volumes" -# Create backup directory if it doesn't exist -mkdir -p "$backup_dir" +# Create backup directories if they don't exist +mkdir -p "$backup_container_dir" +mkdir -p "$backup_volume_dir" # Get current date and time current_datetime=$(date +"%Y-%m-%d_%H-%M-%S") @@ -60,9 +57,21 @@ containers=$(docker ps --format '{{.Names}}') for container in $containers do echo "Backing up container $container..." - docker export "$container" | gzip > "$backup_dir/${container}_${current_datetime}.tar.gz" + docker export "$container" | gzip > "$backup_container_dir/${container}_${current_datetime}.tar.gz" echo "Backup of container $container completed." + + # Get the volumes associated with the container + volumes=$(docker inspect --format '{{ range .Mounts }}{{ if eq .Type "volume" }}{{ .Name }} {{ end }}{{ end }}' "$container") + + # Iterate through each volume and create a backup + for volume in $volumes + do + echo "Backing up volume $volume for container $container..." + docker run --rm -v "$volume":/volume -v "$backup_volume_dir":/backup busybox tar czf "/backup/${volume}_${current_datetime}.tar.gz" -C /volume . + echo "Backup of volume $volume completed." + done + done # Indicate that the backup process is completed -echo "Backup process completed." +echo "Backup process completed." \ No newline at end of file