kevinveenbirkenbach/docker-volume-backup
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kevinveenbirkenbach:feature-mysqldump

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backup-docker-to-local.py
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@ -150,23 +150,17 @@ def getFileRsyncDestinationPath(volume_dir):
return f"{path}/"
def backup_volume(volume_name, volume_dir):
try:
"""Backup files of a volume with incremental backups."""
print(f"Starting backup routine for volume: {volume_name}")
files_rsync_destination_path = getFileRsyncDestinationPath(volume_dir)
pathlib.Path(files_rsync_destination_path).mkdir(parents=True, exist_ok=True)
"""Backup files of a volume with incremental backups."""
print(f"Starting backup routine for volume: {volume_name}")
files_rsync_destination_path = getFileRsyncDestinationPath(volume_dir)
pathlib.Path(files_rsync_destination_path).mkdir(parents=True, exist_ok=True)
last_backup_dir = get_last_backup_dir(volume_name, files_rsync_destination_path)
link_dest_option = f"--link-dest='{last_backup_dir}'" if last_backup_dir else ""
last_backup_dir = get_last_backup_dir(volume_name, files_rsync_destination_path)
link_dest_option = f"--link-dest='{last_backup_dir}'" if last_backup_dir else ""
source_dir = getStoragePath(volume_name)
rsync_command = f"rsync -abP --delete --delete-excluded {link_dest_option} {source_dir} {files_rsync_destination_path}"
execute_shell_command(rsync_command)
except BackupException as e:
if "file has vanished" in e.args[0]:
print("Warning: Some files vanished before transfer. Continuing.")
else:
raise
source_dir = getStoragePath(volume_name)
rsync_command = f"rsync -abP --delete --delete-excluded {link_dest_option} {source_dir} {files_rsync_destination_path}"
execute_shell_command(rsync_command)
print(f"Backup routine for volume: {volume_name} completed.")
def get_image_info(container):
@ -177,14 +171,17 @@ def has_image(container,image):
image_info = get_image_info(container)
return image in image_info[0]
def change_containers_status(containers,status):
def stop_containers(containers):
"""Stop a list of containers."""
if containers:
container_list = ' '.join(containers)
print(f"{status} containers {container_list}...")
execute_shell_command(f"docker {status} {container_list}")
else:
print(f"No containers to {status}.")
container_list = ' '.join(containers)
print(f"Stopping containers {container_list}...")
execute_shell_command(f"docker stop {container_list}")
def start_containers(containers):
"""Start a list of containers."""
container_list = ' '.join(containers)
print(f"Start containers {container_list}...")
execute_shell_command(f"docker start {container_list}")
def get_container_with_image(containers,image):
for container in containers:
@ -220,12 +217,15 @@ def is_image_ignored(container):
return False
def backup_with_containers_paused(volume_name, volume_dir, containers, shutdown):
change_containers_status(containers,'stop')
if containers:
stop_containers(containers)
else:
print(f"{volume_name} has no containers to stop. Skipped.")
backup_volume(volume_name, volume_dir)
# Just restart containers if shutdown is false
if not shutdown:
change_containers_status(containers,'start')
start_containers(containers)
def backup_mariadb_or_postgres(container, volume_dir):
'''Performs database image specific backup procedures'''