fix: add regex to fix promtail indentation

shutter/promtail_config.yaml

@@ -1,46 +1,44 @@
 server:
   http_listen_port: 9080
   grpc_listen_port: 0
-
 positions:
   filename: /tmp/positions.yaml
-
 client:
   url: https://logs.metrics.shutter.network/insert/loki/api/v1/push
   basic_auth:
     username: ${PUSHGATEWAY_USERNAME}
     password: ${PUSHGATEWAY_PASSWORD}
-
 scrape_configs:
- - job_name: configure
-   pipeline_stages:
-   - docker:
-   static_configs:
-   - targets:
-      - localhost
-     labels:
-      job: configure
-      host: ${KEYPER_NAME}
-      __path__: /tmp/configure.log
-
- - job_name: keyper
-   pipeline_stages:
-   - docker:
-   static_configs:
-   - targets:
-      - localhost
-     labels:
-      job: keyper
-      host: ${KEYPER_NAME}
-      __path__: /tmp/keyper.log
-
- - job_name: chain
-   pipeline_stages:
-   - docker:
-   static_configs:
-   - targets:
-      - localhost
-     labels:
-      job: chain
-      host: ${KEYPER_NAME}
-      __path__: /tmp/chain.log
+  - job_name: configure
+    pipeline_stages:
+      - regex:
+          expression: '^(?P<_msg>.*)$'
+    static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: configure
+          host: ${KEYPER_NAME}
+          __path__: /tmp/configure.log
+  - job_name: keyper
+    pipeline_stages:
+      - regex:
+          expression: '^(?P<_msg>.*)$'
+    static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: keyper
+          host: ${KEYPER_NAME}
+          __path__: /tmp/keyper.log
+  - job_name: chain
+    pipeline_stages:
+      - regex:
+          expression: '^(?P<_msg>.*)$'
+    static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: chain
+          host: ${KEYPER_NAME}
+          __path__: /tmp/chain.log