Merge pull request #27 from jannikw/exclude-bind-mounts

Allow excluding all bind mounts from backups

restic_compose_backup.env

@@ -6,6 +6,7 @@
 
 SWARM_MODE=true
 INCLUDE_PROJECT_NAME=false
+EXCLUDE_BIND_MOUNTS=false
 
 RESTIC_REPOSITORY=/restic_data
 RESTIC_PASSWORD=password

src/restic_compose_backup/cli.py

@@ -67,6 +67,7 @@ def status(config, containers):
     logger.info("Repository: '%s'", config.repository)
     logger.info("Backup currently running?: %s", containers.backup_process_running)
     logger.info("Include project name in backup path?: %s", utils.is_true(config.include_project_name))
+    logger.debug("Exclude bind mounts from backups?: %s", utils.is_true(config.exclude_bind_mounts))
     logger.info("Checking docker availability")
 
     utils.list_containers()

src/restic_compose_backup/config.py

@@ -14,6 +14,7 @@ class Config:
         self.cron_command = os.environ.get('CRON_COMMAND') or self.default_backup_command
         self.swarm_mode = os.environ.get('SWARM_MODE') or False
         self.include_project_name = os.environ.get('INCLUDE_PROJECT_NAME') or False
+        self.exclude_bind_mounts = os.environ.get('EXCLUDE_BIND_MOUNTS') or False
 
         # Log
         self.log_level = os.environ.get('LOG_LEVEL')

src/restic_compose_backup/containers.py

@@ -193,11 +193,15 @@ class Container:
         """Get all mounts for this container matching include/exclude filters"""
         filtered = []
 
+        # If exclude_bind_mounts is true, only volume mounts are kept in the list of mounts
+        exclude_bind_mounts = utils.is_true(config.exclude_bind_mounts)
+        mounts = list(filter(lambda m: not exclude_bind_mounts or m.type == "volume", self._mounts))
+
         if not self.volume_backup_enabled:
             return filtered
 
         if self._include:
-            for mount in self._mounts:
+            for mount in mounts:
                 for pattern in self._include:
                     if pattern in mount.source:
                         break
@@ -207,14 +211,14 @@ class Container:
                 filtered.append(mount)
 
         elif self._exclude:
-            for mount in self._mounts:
+            for mount in mounts:
                 for pattern in self._exclude:
                     if pattern in mount.source:
                         break
                 else:
                     filtered.append(mount)
         else:
-            return self._mounts
+            return mounts
 
         return filtered