Actualiser backup_and_restore/backup_docker_container.sh

backup_and_restore/backup_docker_container.sh

@@ -1,25 +1,26 @@
 #!/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=$(date +"%Y-%m-%d_%H-%M-%S")
@@ -60,8 +57,20 @@ containers=$(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