Initial version of filthy backup script

backup.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# FIXME: just for testing
+backup_path=backups
+
+# FIXME: just for testing
+export DOCKER_CONTEXT=demo.coopcloud.tech
+
+mapfile -t services < <(docker service ls --format '{{ .Name }}')
+
+# FIXME: just for testing
+services=( "ghost_demo_app" "ghost_demo_db" )
+
+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"]')
+		path=$(echo "$details" | jq -r '.["backupbot.backup.path"]')
+		
+		if [ "$path" = "null" ]; then
+			echo "ERROR: missing 'path' for $service"
+			continue  # or maybe exit?
+		fi
+
+		container=$(docker container ls -f "name=$service" --format '{{ .ID }}')
+		
+		echo "backing up $service"
+		test -d "$backup_path/$service" || mkdir "$backup_path/$service"
+		
+		if [ "$pre" != "null" ]; then
+			# run the precommand
+			# shellcheck disable=SC2086
+			docker exec "$container" $pre
+		fi
+
+		# run the backup
+		docker cp "$container:$path" "$backup_path/$service"
+
+		if [ "$post" != "null" ]; then
+			# run the postcommand
+			# shellcheck disable=SC2086
+			docker exec "$container" $post
+		fi
+	fi
+	restic -p restic-password \
+		backup --quiet -r sftp:u272979@u272979.your-storagebox.de:/demo.coopcloud.tech \
+		--tag coop-cloud "$backup_path"
+done