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Actualiser backup_and_restore/backup_docker_container.sh

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Philippe Favre
2024-10-18 07:10:42 +02:00
parent 486c973f18
commit c1e242816b
1 changed files with 31 additions and 22 deletions
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backup_and_restore/backup_docker_container.sh
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@@ -1,26 +1,27 @@
#!/bin/bash #!/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 # For each container, it creates a compressed archive file (.tar.gz) containing
# the container's state at the time of execution. # 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". # 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, # 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. # making it easy to identify when the backup was taken.
# #
# Usage: # Usage:
# 1. Save this script to a file, for example: 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.sh # 2. Make the script executable: chmod +x backup_containers_volumes.sh
# 3. Run the script: ./backup_containers.sh # 3. Run the script: ./backup_containers_volumes.sh
# #
# Automation with Cron: # Automation with Cron:
# You can automate the execution of this script and manage old backups with a Cron job: # 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: # 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: # 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_container/* -mtime +14 -exec rm {} \;
# # 0 1 * * * find /root/backup_docker_volumes/* -mtime +14 -exec rm {} \;
#
# Restoring a backup: # Restoring a backup:
# To restore a Docker container from a backup, follow these steps: # To restore a Docker container from a backup, follow these steps:
# #
@@ -35,20 +36,16 @@
# 3. Start a new container from the restored image: # 3. Start a new container from the restored image:
# docker run -d --name new_container_name new_image_name # docker run -d --name new_container_name new_image_name
# #
# This will launch a new container based on the restored image. # 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.
# 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 directories
backup_dir="backup_docker_container" backup_container_dir="backup_docker_container"
backup_volume_dir="backup_docker_volumes"
# Create backup directory if it doesn't exist # Create backup directories if they don't exist
mkdir -p "$backup_dir" mkdir -p "$backup_container_dir"
mkdir -p "$backup_volume_dir"
# Get current date and time # Get current date and time
current_datetime=$(date +"%Y-%m-%d_%H-%M-%S") current_datetime=$(date +"%Y-%m-%d_%H-%M-%S")
@@ -60,9 +57,21 @@ containers=$(docker ps --format '{{.Names}}')
for container in $containers for container in $containers
do do
echo "Backing up container $container..." 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." 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 done
# Indicate that the backup process is completed # Indicate that the backup process is completed
echo "Backup process completed." echo "Backup process completed."