Ajouter backup_and_restore/backup_docker_container.sh

backup_and_restore/backup_docker_container.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+
+# This script backs up all running Docker containers.
+# 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".
+# 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
+# 
+# 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
+#
+# 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 {} \;
+# 
+# Restoring a backup:
+# To restore a Docker container from a backup, follow these steps:
+# 
+# 1. Uncompress the .tar.gz file:
+#    gunzip /path/to/backup_docker_container/container_name_date.tar.gz
+#
+# 2. Create a Docker image from the .tar file:
+#    cat /path/to/backup_docker_container/container_name_date.tar | docker import - new_image_name
+#
+#    This will create a new Docker image from the container's backup.
+#
+# 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.
+
+# Backup directory
+backup_dir="backup_docker_container"
+
+# Create backup directory if it doesn't exist
+mkdir -p "$backup_dir"
+
+# Get current date and time
+current_datetime=$(date +"%Y-%m-%d_%H-%M-%S")
+
+# Get list of running Docker containers
+containers=$(docker ps --format '{{.Names}}')
+
+# Iterate through each container and create a compressed backup with container name and current date and time
+for container in $containers
+do
+    echo "Backing up container $container..."
+    docker export "$container" | gzip > "$backup_dir/${container}_${current_datetime}.tar.gz"
+    echo "Backup of container $container completed."
+done
+
+# Indicate that the backup process is completed
+echo "Backup process completed."