[7.x] [Bazel] Only persist cache and create build invocations in on-m…

…erge pipeline (elastic#114035) (elastic#114339)

* [Bazel] Only persist cache and create build invocations in on-merge pipeline (elastic#114035)

Signed-off-by: Tyler Smalley <tyler.smalley@elastic.co>

* [ci] Fix setup_bazel permissions

Signed-off-by: Tyler Smalley <tyler.smalley@elastic.co>

Co-authored-by: Tyler Smalley <tyler.smalley@elastic.co>

.bazelrc

@@ -2,12 +2,13 @@
 # Import shared settings first so we can override below
 import %workspace%/.bazelrc.common
 
-## Disabled for now
 # Remote cache settings for local env
-# build --remote_cache=https://storage.googleapis.com/kibana-bazel-cache
-# build --incompatible_remote_results_ignore_disk=true
-# build --remote_accept_cached=true
-# build --remote_upload_local_results=false
+build --remote_cache=grpcs://cloud.buildbuddy.io
+build --incompatible_remote_results_ignore_disk=true
+build --noremote_upload_local_results
+build --remote_timeout=30
+build --remote_header=x-buildbuddy-api-key=3EYk49W2NefOx2n3yMze
+build --remote_accept_cached=true
 
 # BuildBuddy
 ## Metadata settings

.buildkite/scripts/lifecycle/pre_command.sh

@@ -89,7 +89,6 @@ if [[ "${SKIP_CI_SETUP:-}" != "true" ]]; then
   if [[ -d .buildkite/scripts && "${BUILDKITE_COMMAND:-}" != "buildkite-agent pipeline upload"* ]]; then
     source .buildkite/scripts/common/env.sh
     source .buildkite/scripts/common/setup_node.sh
-    source .buildkite/scripts/common/setup_bazel.sh
   fi
 fi
 

.buildkite/scripts/steps/on_merge_build_and_metrics.sh

@@ -2,6 +2,9 @@
 
 set -euo pipefail
 
+# Write Bazel cache for Linux
+.buildkite/scripts/common/setup_bazel.sh
+
 .buildkite/scripts/bootstrap.sh
 .buildkite/scripts/build_kibana.sh
 .buildkite/scripts/post_build_kibana.sh