Ch-backup commands with stopped Clickhouse (#166)

ch_backup/backup_context.py

@@ -101,7 +101,7 @@ def backup_layout(self) -> BackupLayout:
         Getter backup_layout
         """
         if not hasattr(self, "_backup_layout"):
-            self._backup_layout = BackupLayout(self._config)
+            self._backup_layout = BackupLayout(self._config_root)
         return self._backup_layout
 
     @backup_layout.setter
@@ -151,7 +151,7 @@ def restore_context(self) -> RestoreContext:
         Getter restore_context
         """
         if not hasattr(self, "_restore_context"):
-            self._restore_context = RestoreContext(self._config)
+            self._restore_context = RestoreContext(self.config)
         return self._restore_context
 
     @restore_context.setter
@@ -208,6 +208,8 @@ def ch_config(self) -> ClickhouseConfig:
         """
         Getter ch_config
         """
+        if not hasattr(self, "_ch_config"):
+            self._ch_config = ClickhouseConfig(self._config_root)
         return self._ch_config
 
     @ch_config.setter

ch_backup/ch_backup.py

@@ -13,13 +13,9 @@
     collect_dedup_info,
     collect_dedup_references_for_batch_backup_deletion,
 )
-from ch_backup.backup.layout import BackupLayout
 from ch_backup.backup.metadata import BackupMetadata, BackupState, TableMetadata
-from ch_backup.backup.restore_context import RestoreContext
 from ch_backup.backup.sources import BackupSources
 from ch_backup.backup_context import BackupContext
-from ch_backup.clickhouse.config import ClickhouseConfig
-from ch_backup.clickhouse.control import ClickhouseCTL
 from ch_backup.clickhouse.models import Database
 from ch_backup.config import Config
 from ch_backup.exceptions import (
@@ -64,18 +60,7 @@ def _context(self) -> BackupContext:
         """
         Create and configure BackupContext
         """
-
         ctx = BackupContext(self._config)
-        ctx.ch_ctl_conf = self._config["clickhouse"]
-        ctx.main_conf = self._config["main"]
-
-        ctx.ch_ctl = ClickhouseCTL(ctx.ch_ctl_conf, ctx.main_conf, ctx.config)
-        ctx.backup_layout = BackupLayout(self._config)
-
-        ctx.config = self._config["backup"]
-        ctx.zk_config = self._config.get("zookeeper")
-        ctx.restore_context = RestoreContext(ctx.config)
-        ctx.ch_config = ClickhouseConfig(self._config)
         return ctx
 
     def reload_config(self, config: Config) -> None:

tests/integration/ch_backup.featureset

@@ -23,3 +23,4 @@ features/backup_misc_commands.feature
 features/lock.feature
 features/traffic_limiting.feature
 features/named_collections.feature
+features/operations_without_ch.feature

tests/integration/features/operations_without_ch.feature

@@ -0,0 +1,20 @@
+Feature: Ch-backup operations without connection to clickhouse-server.
+
+  Background:
+    Given default configuration
+    And a working s3
+    And a working zookeeper on zookeeper01
+    And a working clickhouse on clickhouse01
+    And a working clickhouse on clickhouse02
+
+  Scenario: Version command without ch-server.
+    When we stop clickhouse at clickhouse01
+    Then we got a valid ch-backup version on clickhouse01
+
+  Scenario: List command without ch-server.
+    When we create clickhouse01 clickhouse backup
+    And we stop clickhouse at clickhouse01
+
+    Then we got the following backups on clickhouse01
+    | num | state   |
+    | 0   | created |