sourcegraph: add json_gcp log format in gcp example overrides (#330)

Author: michaellzc

charts/sourcegraph/examples/gcp/README.md

@@ -2,6 +2,8 @@
 
 Deploy Sourcegraph on GKE and use [Container-native load balancing through Ingress] to make Sourcegraph publicly accessible.
 
+Additionally, it will configure output logs format that works better with GCP Logging by setting `SRC_LOG_FORMAT=json_gcp` in all services.
+
 ## Get started
 
 Deploy or upgrade Sourcegraph Helm chart with the provided [override.yaml](./override.yaml). This will create a public-facing load balancer that supports HTTP traffic. You can then access your deployment via the IP of the load balancer.

charts/sourcegraph/examples/gcp/override.yaml

@@ -11,6 +11,9 @@ frontend:
     cloud.google.com/neg: '{"ingress": true}'
     # Reference the `BackendConfig` CR created below
     beta.cloud.google.com/backend-config: '{"default": "sourcegraph-frontend"}'
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
 
 storageClass:
   create: true
@@ -30,3 +33,68 @@ extraResources:
         timeoutSec: 5
         requestPath: /ready
         port: 6060 # we use a custom port to perform healthcheck
+
+migrator:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+githubProxy:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+gitserver:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+grafana:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+indexedSearch:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+indexedSearchIndexer:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+blobstore:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+preciseCodeIntel:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+repoUpdater:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+searcher:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+symbols:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+syntectServer:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp
+
+worker:
+  env:
+    SRC_LOG_FORMAT: 
+      value: json_gcp