remove unused traefik labels

* Backupbot will now copy all volumes from a service with
  backupbot.enabled = 'true' label from the /var/lib/docker/volumes/
  path directly. This reduces the resource overhead of copying
  stuff from one volume to another.
  Recipes need to be adjustet that db-dumps are saved into a volume
  now!
* Remove the Dockerfile and move stuff into a entrypoint. This
  simplifies the whole versioning thing and makes this "just"
  a recipe

Co-authored-by: Moritz < moritz.m@local-it.org>

.env.sample

@@ -4,9 +4,11 @@ SECRET_RESTIC_PASSWORD_VERSION=v1
 
 COMPOSE_FILE=compose.yml
 
-RESTIC_REPOSITORY=/backups/restic
+SERVER_NAME=example.com
+RESTIC_HOST=minio.example.com
 
-CRON_SCHEDULE='30 3 * * *'
+CRON_SCHEDULE='*/5 * * * *'
+REMOVE_BACKUP_VOLUME_AFTER_UPLOAD=1
 
 # swarm-cronjob, instead of built-in cron
 #COMPOSE_FILE="$COMPOSE_FILE:compose.swarm-cronjob.yml"
@@ -20,10 +22,3 @@ CRON_SCHEDULE='30 3 * * *'
 #SECRET_AWS_SECRET_ACCESS_KEY_VERSION=v1
 #AWS_ACCESS_KEY_ID=something-secret
 #COMPOSE_FILE="$COMPOSE_FILE:compose.s3.yml"
-
-# Secret restic repository
-# use a secret to store the RESTIC_REPOSITORY if the repository location contains a secret value
-# i.E rest:https://user:SECRET_PASSWORD@host:8000/
-# it overwrites the RESTIC_REPOSITORY variable
-#SECRET_RESTIC_REPO_VERSION=v1
-#COMPOSE_FILE="$COMPOSE_FILE:compose.secret.yml"

.envrc.sample

@@ -10,8 +10,6 @@ export DOCKER_CONTEXT=$SERVER_NAME
 # or this:
 #export AWS_SECRET_ACCESS_KEY_FILE=s3
 #export AWS_ACCESS_KEY_ID=easter-october-emphatic-tug-urgent-customer
-# or this:
-#export HTTPS_PASSWORD_FILE=/run/secrets/https_password
 
 # optionally limit subset of services for testing
 #export SERVICES_OVERRIDE="ghost_domain_tld_app ghost_domain_tld_db"

README.md

@@ -6,20 +6,6 @@ _This Time, It's Easily Configurable_
 
 Automatically take backups from all volumes of running Docker Swarm services and runs pre- and post commands.
 
-<!-- metadata -->
-
-* **Category**: Utilities
-* **Status**: 0, work-in-progress
-* **Image**: [`thecoopcloud/backup-bot-two`](https://hub.docker.com/r/thecoopcloud/backup-bot-two), 4, upstream
-* **Healthcheck**: No
-* **Backups**: N/A
-* **Email**: N/A
-* **Tests**: No
-* **SSO**: N/A
-
-<!-- endmetadata -->
-
-
 ## Background
 
 There are lots of Docker volume backup systems; all of them have one or both of these limitations:
@@ -34,135 +20,28 @@ Backupbot II tries to help, by
 
 ### With Co-op Cloud
 
+1. Set up Docker Swarm and [`abra`][abra]
+2. `abra app new backup-bot-two`
+3. `abra app config <your-app-name>`, and set storage options. Either configure `CRON_SCHEDULE`, or set up `swarm-cronjob`
+4. `abra app secret generate <your-app-name> restic-password v1`, optionally with `--pass` before `<your-app-name>` to save the generated secret in `pass`.
+5. `abra app secret insert <your-app-name> ssh-key v1 ...` or similar, to load required secrets.
+4. `abra app deploy <your-app-name>`
 
-* `abra app new backup-bot-two`
-* `abra app config <app-name>`
-    - set storage options. Either configure `CRON_SCHEDULE`, or set up `swarm-cronjob`
-* `abra app secret generate -a <app_name>`
-* `abra app deploy <app-name>`
+<!-- metadata -->
+
+* **Category**: Utilities
+* **Status**: 0, work-in-progress
+* **Image**: [`thecoopcloud/backup-bot-two`](https://hub.docker.com/r/thecoopcloud/backup-bot-two), 4, upstream
+* **Healthcheck**: No
+* **Backups**: N/A
+* **Email**: N/A
+* **Tests**: No
+* **SSO**: N/A
+
+<!-- endmetadata -->
 
 ## Configuration
 
-Per default Backupbot stores the backups locally in the repository `/backups/restic`, which is accessible as volume at `/var/lib/docker/volumes/<app_name>_backups/_data/restic/`
-
-The backup location can be changed using the `RESTIC_REPOSITORY` env variable.
-
-### S3 Storage
-
-To use S3 storage as backup location set the following envs:
-```
-RESTIC_REPOSITORY=s3:<S3-SERVICE-URL>/<BUCKET-NAME>
-SECRET_AWS_SECRET_ACCESS_KEY_VERSION=v1
-AWS_ACCESS_KEY_ID=<MY_ACCESS_KEY>
-COMPOSE_FILE="$COMPOSE_FILE:compose.s3.yml"
-```
-and add your `<SECRET_ACCESS_KEY>` as docker secret:
-`abra app secret insert <app_name> aws_secret_access_key v1 <SECRET_ACCESS_KEY>`
-
-See [restic s3 docs](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#amazon-s3) for more information.
-
-### SFTP Storage
-
-> With sftp it is not possible to prevent the backupbot from deleting backups in case of a compromised machine. Therefore we recommend to use S3, REST or rclone server without delete permissions.
-
-To use SFTP storage as backup location set the following envs:
-```
-RESTIC_REPOSITORY=sftp:user@host:/restic-repo-path
-SECRET_SSH_KEY_VERSION=v1
-SSH_HOST_KEY="hostname ssh-rsa AAAAB3...
-COMPOSE_FILE="$COMPOSE_FILE:compose.ssh.yml"
-```
-To get the `SSH_HOST_KEY` run the following command `ssh-keyscan <hostname>`
-
-Generate an ssh keypair: `ssh-keygen -t ed25519 -f backupkey -P ''`
-Add the key to your `authorized_keys`:
-`ssh-copy-id -i backupkey <user>@<hostname>`
-Add your `SSH_KEY` as docker secret:
-```
-abra app secret insert <app_name> ssh_key v1 """$(cat backupkey)
-"""
-```
-> Attention: This command needs to be executed exactly as stated above, because it places a trailing newline at the end, if this is missing you will get the following error: `Load key "/run/secrets/ssh_key": error in libcrypto`
-
-### Restic REST server Storage
-
-You can simply set the `RESTIC_REPOSITORY` variable to your REST server URL `rest:http://host:8000/`.
-If you access the REST server with a password `rest:https://user:pass@host:8000/` you should hide the whole URL containing the password inside a secret.
-Uncomment these lines:
-```
-SECRET_RESTIC_REPO_VERSION=v1
-COMPOSE_FILE="$COMPOSE_FILE:compose.secret.yml"
-```
-Add your REST server url as secret:
-```
-`abra app secret insert <app_name> restic_repo v1 "rest:https://user:pass@host:8000/"`
-```
-The secret will overwrite the `RESTIC_REPOSITORY` variable.
-
-
-See [restic REST docs](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#rest-server) for more information.
-
-## Usage
-
-
-Create a backup of all apps:
-
-`abra app run <app_name> app -- backup create`
-
-> The apps to backup up need to be deployed
-
-Create an individual backup:
-
-`abra app run <app_name> app -- backup --host <target_app_name> create`
-
-Create a backup to a local repository:
-
-`abra app run <app_name> app -- backup create -r /backups/restic`
-
-> It is recommended to shutdown/undeploy an app before restoring the data
-
-Restore the latest snapshot of all including apps:
-
-`abra app run <app_name> app -- backup restore`
-
-Restore a specific snapshot of an individual app:
-
-`abra app run <app_name> app -- backup --host <target_app_name> restore --snapshot <snapshot_id>`
-
-Show all snapshots:
-
-`abra app run <app_name> app -- backup snapshots`
-
-Show all snapshots containing a specific app:
-
-`abra app run <app_name> app -- backup --host <target_app_name> snapshots`
-
-Show all files inside the latest snapshot (can be very verbose):
-
-`abra app run <app_name> app -- backup ls`
-
-Show specific files inside a selected snapshot:
-
-`abra app run <app_name> app -- backup ls --snapshot <snapshot_id> --path /var/lib/docker/volumes/`
-
-Download files from a snapshot:
-
-```
-filename=$(abra app run <app_name> app -- backup download --snapshot <snapshot_id> --path <absolute_path>)
-abra app cp <app_name> app:$filename .
-```
-
-## Run restic
-
-```
-abra app run <app_name> app bash
-export AWS_SECRET_ACCESS_KEY=$(cat $AWS_SECRET_ACCESS_KEY_FILE)
-export RESTIC_PASSWORD=$(cat $RESTIC_PASSWORD_FILE)
-restic snapshots
-```
-
-## Recipe Configuration
-
 Like Traefik, or `swarm-cronjob`, Backupbot II uses access to the Docker socket to read labels from running Docker Swarm services:
 
 ```
@@ -181,4 +60,11 @@ services:
 
 As in the above example, you can reference Docker Secrets, e.g. for looking up database passwords, by reading the files in `/run/secrets` directly.
 
+## Development
+
+1. Install `direnv`
+2. `cp .envrc.sample .envrc`
+3. Edit `.envrc` as appropriate, including setting `DOCKER_CONTEXT` to a remote Docker context, if you're not running a swarm server locally.
+4. Run `./backup.sh` -- you can add the `--skip-backup` or `--skip-upload` options if you just want to test one other step
+
 [abra]: https://git.autonomic.zone/autonomic-cooperative/abra

abra.sh

@@ -1,3 +1,2 @@
 export ENTRYPOINT_VERSION=v1
-export BACKUPBOT_VERSION=v1
-export SSH_CONFIG_VERSION=v1
+export BACKUP_VERSION=v1

backup.sh

@@ -0,0 +1,119 @@
+#!/bin/bash
+
+set -e
+
+server_name="${SERVER_NAME:?SERVER_NAME not set}"
+
+restic_password_file="${RESTIC_PASSWORD_FILE:?RESTIC_PASSWORD_FILE not set}"
+
+restic_host="${RESTIC_HOST:?RESTIC_HOST not set}"
+
+backup_paths=()
+
+# shellcheck disable=SC2153
+ssh_key_file="${SSH_KEY_FILE}"
+s3_key_file="${AWS_SECRET_ACCESS_KEY_FILE}"
+
+restic_repo=
+restic_extra_options=
+
+if [ -n "$ssh_key_file" ] && [ -f "$ssh_key_file" ]; then
+	restic_repo="sftp:$restic_host:/$server_name"
+
+	# Only check server against provided SSH_HOST_KEY, if set
+	if [ -n "$SSH_HOST_KEY" ]; then
+		tmpfile=$(mktemp)
+		echo "$SSH_HOST_KEY" >>"$tmpfile"
+		echo "using host key $SSH_HOST_KEY"
+		ssh_options="-o 'UserKnownHostsFile $tmpfile'"
+	elif [ "$SSH_HOST_KEY_DISABLE" = "1" ]; then
+		echo "disabling SSH host key checking"
+		ssh_options="-o 'StrictHostKeyChecking=No'"
+	else
+		echo "neither SSH_HOST_KEY nor SSH_HOST_KEY_DISABLE set"
+	fi
+	restic_extra_options="sftp.command=ssh $ssh_options -i $ssh_key_file $restic_host -s sftp"
+fi
+
+if [ -n "$s3_key_file" ] && [ -f "$s3_key_file" ] && [ -n "$AWS_ACCESS_KEY_ID" ]; then
+	AWS_SECRET_ACCESS_KEY="$(cat "${s3_key_file}")"
+	export AWS_SECRET_ACCESS_KEY
+	restic_repo="s3:$restic_host:/$server_name"
+fi
+
+if [ -z "$restic_repo" ]; then
+	echo "you must configure either SFTP or S3 storage, see README"
+	exit 1
+fi
+
+echo "restic_repo: $restic_repo"
+
+# Pre-bake-in some default restic options
+_restic() {
+	if [ -z "$restic_extra_options" ]; then
+		# shellcheck disable=SC2068
+		restic -p "$restic_password_file" \
+			--quiet -r "$restic_repo" \
+			$@
+	else
+		# shellcheck disable=SC2068
+		restic -p "$restic_password_file" \
+			--quiet -r "$restic_repo" \
+			-o "$restic_extra_options" \
+			$@
+	fi
+}
+
+if [ -n "$SERVICES_OVERRIDE" ]; then
+	# this is fine because docker service names should never include spaces or
+	# glob characters
+	# shellcheck disable=SC2206
+	services=($SERVICES_OVERRIDE)
+else
+	mapfile -t services < <(docker service ls --format '{{ .Name }}')
+fi
+
+post_commands=()
+if [[ \ $*\  != *\ --skip-backup\ * ]]; then
+
+	for service in "${services[@]}"; do
+		echo "service: $service"
+		details=$(docker service inspect "$service" --format "{{ json .Spec.Labels }}")
+		if echo "$details" | jq -r '.["backupbot.backup"]' | grep -q 'true'; then
+			pre=$(echo "$details" | jq -r '.["backupbot.backup.pre-hook"]')
+			post=$(echo "$details" | jq -r '.["backupbot.backup.post-hook"]')
+			container=$(docker container ls -f "name=$service" --format '{{ .ID }}')
+			stack_name=$(echo "$details" | jq -r '.["com.docker.stack.namespace"]')
+
+			if [ "$pre" != "null" ]; then
+				# run the precommand
+				echo "executing precommand $pre in container $container"
+				docker exec "$container" sh -c "$pre"
+			fi
+			if [ "$post" != "null" ]; then
+				# append post command
+				post_commands+=("docker exec $container sh -c \"$post\"")
+			fi
+
+			# add volume paths to backup path
+			backup_paths+=(/var/lib/docker/volumes/"${stack_name}"_*)
+		fi
+	done
+
+	# check if restic repo exists, initialise if not
+	if [ -z "$(_restic cat config)" ] 2>/dev/null; then
+		echo "initializing restic repo"
+		_restic init
+	fi
+fi
+
+if [[ \ $*\  != *\ --skip-upload\ * ]]; then
+	echo "${backup_paths[@]}"
+	_restic backup --host "$server_name" --tag coop-cloud "${backup_paths[@]}"
+fi
+
+# run post commands
+for post in "${post_commands[@]}"; do
+	echo "executing postcommand $post"
+	eval "$post"
+done

backupbot.py

@@ -1,328 +0,0 @@
-#!/usr/bin/python3
-
-import os
-import click
-import json
-import subprocess
-import logging
-import docker
-import restic
-import tarfile
-import io
-from datetime import datetime, timezone
-from restic.errors import ResticFailedError
-from pathlib import Path
-from shutil import copyfile, rmtree
-# logging.basicConfig(level=logging.INFO)
-
-VOLUME_PATH = "/var/lib/docker/volumes/"
-SECRET_PATH = '/secrets/'
-SERVICE = None
-
-
-@click.group()
-@click.option('-l', '--log', 'loglevel')
-@click.option('service', '--host', '-h', envvar='SERVICE')
-@click.option('repository', '--repo', '-r', envvar='RESTIC_REPOSITORY', required=True)
-def cli(loglevel, service, repository):
-    global SERVICE
-    if service:
-        SERVICE = service.replace('.', '_')
-    if repository:
-        os.environ['RESTIC_REPOSITORY'] = repository
-    if loglevel:
-        numeric_level = getattr(logging, loglevel.upper(), None)
-        if not isinstance(numeric_level, int):
-            raise ValueError('Invalid log level: %s' % loglevel)
-        logging.basicConfig(level=numeric_level)
-    export_secrets()
-    init_repo()
-
-
-def init_repo():
-    repo = os.environ['RESTIC_REPOSITORY']
-    logging.debug(f"set restic repository location: {repo}")
-    restic.repository = repo
-    restic.password_file = '/var/run/secrets/restic_password'
-    try:
-        restic.cat.config()
-    except ResticFailedError as error:
-        if 'unable to open config file' in str(error):
-            result = restic.init()
-            logging.info(f"Initialized restic repo: {result}")
-        else:
-            raise error
-
-
-def export_secrets():
-    for env in os.environ:
-        if env.endswith('FILE') and not "COMPOSE_FILE" in env:
-            logging.debug(f"exported secret: {env}")
-            with open(os.environ[env]) as file:
-                secret = file.read()
-                os.environ[env.removesuffix('_FILE')] = secret
-                # logging.debug(f"Read secret value: {secret}")
-
-
-@cli.command()
-def create():
-    pre_commands, post_commands, backup_paths, apps = get_backup_cmds()
-    copy_secrets(apps)
-    backup_paths.append(SECRET_PATH)
-    run_commands(pre_commands)
-    backup_volumes(backup_paths, apps)
-    run_commands(post_commands)
-
-
-def get_backup_cmds():
-    client = docker.from_env()
-    container_by_service = {
-        c.labels['com.docker.swarm.service.name']: c for c in client.containers.list()}
-    backup_paths = set()
-    backup_apps = set()
-    pre_commands = {}
-    post_commands = {}
-    services = client.services.list()
-    for s in services:
-        labels = s.attrs['Spec']['Labels']
-        if (backup := labels.get('backupbot.backup')) and bool(backup):
-            stack_name = labels['com.docker.stack.namespace']
-            # Remove this lines to backup only a specific service
-            # This will unfortenately decrease restice performance
-            # if SERVICE and SERVICE != stack_name:
-            #     continue
-            backup_apps.add(stack_name)
-            backup_paths = backup_paths.union(
-                Path(VOLUME_PATH).glob(f"{stack_name}_*"))
-            if not (container:= container_by_service.get(s.name)):
-                logging.error(
-                    f"Container {s.name} is not running, hooks can not be executed")
-                continue
-            if prehook := labels.get('backupbot.backup.pre-hook'):
-                pre_commands[container] = prehook
-            if posthook := labels.get('backupbot.backup.post-hook'):
-                post_commands[container] = posthook
-    return pre_commands, post_commands, list(backup_paths), list(backup_apps)
-
-
-def copy_secrets(apps):
-    #TODO: check if it is deployed
-    rmtree(SECRET_PATH, ignore_errors=True)
-    os.mkdir(SECRET_PATH)
-    client = docker.from_env()
-    container_by_service = {
-        c.labels['com.docker.swarm.service.name']: c for c in client.containers.list()}
-    services = client.services.list()
-    for s in services:
-        app_name = s.attrs['Spec']['Labels']['com.docker.stack.namespace']
-        if (app_name in apps and
-                (app_secs := s.attrs['Spec']['TaskTemplate']['ContainerSpec'].get('Secrets'))):
-            if not container_by_service.get(s.name):
-                logging.error(
-                    f"Container {s.name} is not running, secrets can not be copied.")
-                continue
-            container_id = container_by_service[s.name].id
-            for sec in app_secs:
-                src = f'/var/lib/docker/containers/{container_id}/mounts/secrets/{sec["SecretID"]}'
-                if not Path(src).exists():
-                    logging.error(f"For the secret {sec['SecretName']} the file {src} does not exist for {s.name}")
-                    continue
-                dst = SECRET_PATH + sec['SecretName']
-                copyfile(src, dst)
-
-
-def run_commands(commands):
-    for container, command in commands.items():
-        if not command:
-            continue
-        # Remove bash/sh wrapping
-        command = command.removeprefix('bash -c').removeprefix('sh -c')
-        # Remove quotes surrounding the command
-        if (len(command) >= 2 and command[0] == command[-1] and (command[0] == "'" or command[0] == '"')):
-            command[1:-1]
-        # Use bash's pipefail to return exit codes inside a pipe to prevent silent failure
-        command = f"bash -c 'set -o pipefail;{command}'"
-        logging.info(f"run command in {container.name}:")
-        logging.info(command)
-        result = container.exec_run(command)
-        if result.exit_code:
-            logging.error(
-                f"Failed to run command {command} in {container.name}: {result.output.decode()}")
-        else:
-            logging.info(result.output.decode())
-
-
-def backup_volumes(backup_paths, apps, dry_run=False):
-    try:
-        result = restic.backup(backup_paths, dry_run=dry_run, tags=apps)
-        print(result)
-        logging.info(result)
-    except ResticFailedError as error:
-        logging.error(f"Backup failed for {apps}. Could not Backup these paths: {backup_paths}")
-        logging.error(error)
-        exit(1)
-
-
-@cli.command()
-@click.option('snapshot', '--snapshot', '-s', envvar='SNAPSHOT', default='latest')
-@click.option('target', '--target', '-t', envvar='TARGET', default='/')
-@click.option('noninteractive', '--noninteractive', envvar='NONINTERACTIVE', default=False)
-def restore(snapshot, target, noninteractive):
-    # Todo: recommend to shutdown the container
-    service_paths = VOLUME_PATH
-    if SERVICE:
-        service_paths = service_paths + f'{SERVICE}_*'
-    snapshots = restic.snapshots(snapshot_id=snapshot)
-    if not snapshot:
-        logging.error("No Snapshots with ID {snapshots}")
-        exit(1)
-    if not noninteractive:
-        snapshot_date = datetime.fromisoformat(snapshots[0]['time'])
-        delta = datetime.now(tz=timezone.utc) - snapshot_date
-        print(
-            f"You are going to restore Snapshot {snapshot} of {service_paths} at {target}")
-        print(f"This snapshot is {delta} old")
-        print(
-            f"THIS COMMAND WILL IRREVERSIBLY OVERWRITES {target}{service_paths.removeprefix('/')}")
-        prompt = input("Type YES (uppercase) to continue: ")
-        if prompt != 'YES':
-            logging.error("Restore aborted")
-            exit(1)
-    print(f"Restoring Snapshot {snapshot} of {service_paths} at {target}")
-    result = restic.restore(snapshot_id=snapshot,
-                            include=service_paths, target_dir=target)
-    logging.debug(result)
-
-
-@cli.command()
-def snapshots():
-    snapshots = restic.snapshots()
-    no_snapshots = True
-    for snap in snapshots:
-        if not SERVICE or (tags := snap.get('tags')) and SERVICE in tags:
-            print(snap['time'], snap['id'])
-            no_snapshots = False
-    if no_snapshots:
-        err_msg = "No Snapshots found"
-        if SERVICE:
-            err_msg += f' for app {SERVICE}'
-        logging.warning(err_msg)
-
-
-@cli.command()
-@click.option('snapshot', '--snapshot', '-s', envvar='SNAPSHOT', default='latest')
-@click.option('path', '--path', '-p', envvar='INCLUDE_PATH')
-def ls(snapshot, path):
-    results = list_files(snapshot, path)
-    for r in results:
-        if r.get('path'):
-            print(f"{r['ctime']}\t{r['path']}")
-
-
-def list_files(snapshot, path):
-    cmd = restic.cat.base_command() + ['ls']
-    if SERVICE:
-        cmd = cmd + ['--tag', SERVICE]
-    cmd.append(snapshot)
-    if path:
-        cmd.append(path)
-    try:
-        output = restic.internal.command_executor.execute(cmd)
-    except ResticFailedError as error:
-        if 'no snapshot found' in str(error):
-            err_msg = f'There is no snapshot {snapshot}'
-            if SERVICE:
-                err_msg += f'for the app {SERVICE}'
-            logging.error(err_msg)
-            exit(1)
-        else:
-            raise error
-    output = output.replace('}\n{', '}|{')
-    results = list(map(json.loads, output.split('|')))
-    return results
-
-
-@cli.command()
-@click.option('snapshot', '--snapshot', '-s', envvar='SNAPSHOT', default='latest')
-@click.option('path', '--path', '-p', envvar='INCLUDE_PATH')
-@click.option('volumes', '--volumes', '-v', is_flag=True)
-@click.option('secrets', '--secrets', '-c', is_flag=True)
-def download(snapshot, path, volumes, secrets):
-    file_dumps = []
-    if not any([path, volumes, secrets]):
-        volumes = secrets = True
-    if path:
-        path = path.removesuffix('/')
-        binary_output = dump(snapshot, path)
-        files = list_files(snapshot, path)
-        filetype = [f.get('type') for f in files if f.get('path') == path][0]
-        filename = Path(path).name
-        if filetype == 'dir':
-            filename = filename + ".tar"
-        tarinfo = tarfile.TarInfo(name=filename)
-        tarinfo.size = len(binary_output)
-        file_dumps.append((binary_output, tarinfo))
-    if volumes:
-        if not SERVICE:
-            logging.error("Please specify '--host' when using '--volumes'")
-            exit(1)
-        files = list_files(snapshot, VOLUME_PATH)
-        for f in files[1:]:
-            path = f['path']
-            if Path(path).name.startswith(SERVICE) and f['type'] == 'dir':
-                binary_output = dump(snapshot, path)
-                filename = f"{Path(path).name}.tar"
-                tarinfo = tarfile.TarInfo(name=filename)
-                tarinfo.size = len(binary_output)
-                file_dumps.append((binary_output, tarinfo))
-    if secrets:
-        if not SERVICE:
-            logging.error("Please specify '--host' when using '--secrets'")
-            exit(1)
-        filename = f"{SERVICE}.json"
-        files = list_files(snapshot, SECRET_PATH)
-        secrets = {}
-        for f in files[1:]:
-            path = f['path']
-            if Path(path).name.startswith(SERVICE) and f['type'] == 'file':
-                secret = dump(snapshot, path).decode()
-                secret_name = path.removeprefix(f'{SECRET_PATH}{SERVICE}_')
-                secrets[secret_name] = secret
-        binary_output = json.dumps(secrets).encode()
-        tarinfo = tarfile.TarInfo(name=filename)
-        tarinfo.size = len(binary_output)
-        file_dumps.append((binary_output, tarinfo))
-    with tarfile.open('/tmp/backup.tar.gz', "w:gz") as tar:
-        print(f"Writing files to /tmp/backup.tar.gz...")
-        for binary_output, tarinfo in file_dumps:
-            tar.addfile(tarinfo, fileobj=io.BytesIO(binary_output))
-    size = get_formatted_size('/tmp/backup.tar.gz')
-    print(f"Backup has been written to /tmp/backup.tar.gz with a size of {size}")
-
-
-def get_formatted_size(file_path):
-    file_size = os.path.getsize(file_path)
-    units = ['Bytes', 'KB', 'MB', 'GB', 'TB']
-    for unit in units:
-        if file_size < 1024:
-            return f"{round(file_size, 3)} {unit}"
-        file_size /= 1024
-    return f"{round(file_size, 3)} {units[-1]}"
-
-
-def dump(snapshot, path):
-    cmd = restic.cat.base_command() + ['dump']
-    if SERVICE:
-        cmd = cmd + ['--tag', SERVICE]
-    cmd = cmd + [snapshot, path]
-    print(f"Dumping {path} from snapshot '{snapshot}'")
-    output = subprocess.run(cmd, capture_output=True)
-    if output.returncode:
-        logging.error(
-            f"error while dumping {path} from snapshot '{snapshot}': {output.stderr}")
-        exit(1)
-    return output.stdout
-
-
-if __name__ == '__main__':
-    cli()

compose.secret.yml

@@ -1,13 +0,0 @@
----
-version: "3.8"
-services:
-  app:
-    environment:
-      - RESTIC_REPOSITORY_FILE=/run/secrets/restic_repo
-    secrets:
-      - restic_repo
-
-secrets:
-  restic_repo:
-    external: true
-    name: ${STACK_NAME}_restic_repo_${SECRET_RESTIC_REPO_VERSION}

compose.ssh.yml

@@ -5,19 +5,12 @@ services:
     environment:
       - SSH_KEY_FILE=/run/secrets/ssh_key
       - SSH_HOST_KEY
+      - SSH_HOST_KEY_DISABLE
     secrets:
       - source: ssh_key
         mode: 0400
-    configs:
-      - source: ssh_config
-        target: /root/.ssh/config
 
 secrets:
   ssh_key:
     external: true
     name: ${STACK_NAME}_ssh_key_${SECRET_SSH_KEY_VERSION}
-
-configs:
-  ssh_config:
-    name: ${STACK_NAME}_ssh_config_${SSH_CONFIG_VERSION}
-    file: ssh_config

compose.yml

@@ -2,50 +2,41 @@
 version: "3.8"
 services:
   app:
-    image: docker:24.0.7-dind
+    image: docker:24.0.2-dind
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock"
-      - "/var/lib/docker/volumes/:/var/lib/docker/volumes/"
-      - "/var/lib/docker/containers/:/var/lib/docker/containers/:ro"
-      - backups:/backups
+      - "/var/lib/docker/volumes/:/var/lib/docker/volumes/:ro"
     environment:
       - CRON_SCHEDULE
-      - RESTIC_REPOSITORY
+      - RESTIC_REPO
       - RESTIC_PASSWORD_FILE=/run/secrets/restic_password
+      - BACKUP_DEST=/backups
+      - RESTIC_HOST
+      - SERVER_NAME
+      - REMOVE_BACKUP_VOLUME_AFTER_UPLOAD=1
     secrets:
       - restic_password
     deploy:
       labels:
         - coop-cloud.${STACK_NAME}.version=0.1.0+latest
-        - coop-cloud.${STACK_NAME}.timeout=${TIMEOUT:-300}
-        - coop-cloud.backupbot.enabled=true
     configs:
       - source: entrypoint
         target: /entrypoint.sh
         mode: 0555
-      - source: backupbot
-        target: /usr/bin/backup
+      - source: backup
+        target: /backup.sh
         mode: 0555
     entrypoint: ['/entrypoint.sh']
-    healthcheck:
-      test: "pgrep crond"
-      interval: 30s
-      timeout: 10s
-      retries: 10
-      start_period: 5m
 
 secrets:
   restic_password:
     external: true
     name: ${STACK_NAME}_restic_password_${SECRET_RESTIC_PASSWORD_VERSION}
-    
-volumes:
-  backups:
 
 configs:
   entrypoint:
     name: ${STACK_NAME}_entrypoint_${ENTRYPOINT_VERSION}
     file: entrypoint.sh
-  backupbot:
-    name: ${STACK_NAME}_backupbot_${BACKUPBOT_VERSION}
-    file: backupbot.py
+  backup:
+    name: ${STACK_NAME}_backup_${BACKUP_VERSION}
+    file: backup.sh

entrypoint.sh

@@ -1,20 +1,12 @@
 #!/bin/sh
 
-set -e -o pipefail
+set -e
 
-apk add --upgrade --no-cache restic bash python3 py3-pip
-
-# Todo use requirements file with specific versions
-pip install click==8.1.7 docker==6.1.3 resticpy==1.0.2
-
-if [ -n "$SSH_HOST_KEY" ]
-then
-    echo "$SSH_HOST_KEY" > /root/.ssh/known_hosts
-fi
+apk add --upgrade --no-cache bash curl jq restic
 
 cron_schedule="${CRON_SCHEDULE:?CRON_SCHEDULE not set}"
 
-echo "$cron_schedule backup create" | crontab -
+echo "$cron_schedule /backup.sh" | crontab -
 crontab -l
 
 crond -f -d8 -L /dev/stdout

release/1.0.0+latest

@@ -1,3 +0,0 @@
-Breaking Change: the variables `SERVER_NAME` and `RESTIC_HOST` are merged into `RESTIC_REPOSITORY`. The format can be looked up here: https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html
-ssh/sftp: `sftp:user@host:/repo-path`
-S3:  `s3:https://s3.example.com/bucket_name`

ssh_config

@@ -1,4 +0,0 @@
-Host *
-    IdentityFile    /run/secrets/ssh_key
-    ServerAliveInterval 60
-    ServerAliveCountMax 240