Add volumed-out config directory for symbolicator. (#566)

I would like to be able to customize the configuration for my Sentry 10 symbolicator instance, which this change allows me to easily do.

See related: https://github.com/getsentry/symbolicator/issues/245

Co-authored-by: Burak Yigit Kaya <ben@byk.im>

.gitignore

@@ -79,3 +79,4 @@ sentry/config.yml
 sentry/*.bak
 sentry/requirements.txt
 relay/credentials.json
+symbolicator/config.yml

docker-compose.yml

@@ -136,7 +136,11 @@ services:
     image: 'getsentry/symbolicator:$SYMBOLICATOR_VERSION'
     volumes:
       - 'sentry-symbolicator:/data'
-    command: run
+      - type: bind
+        read_only: true
+        source: ./symbolicator
+        target: /etc/symbolicator
+    command: run -c /etc/symbolicator/config.yml
   symbolicator-cleanup:
     << : *restart_policy
     image: symbolicator-cleanup-onpremise-local

install.sh

@@ -14,6 +14,7 @@ MIN_RAM=2400 # MB
 
 SENTRY_CONFIG_PY='sentry/sentry.conf.py'
 SENTRY_CONFIG_YML='sentry/config.yml'
+SYMBOLICATOR_CONFIG_YML='symbolicator/config.yml'
 RELAY_CONFIG_YML='relay/config.yml'
 RELAY_CREDENTIALS_JSON='relay/credentials.json'
 SENTRY_EXTRA_REQUIREMENTS='sentry/requirements.txt'
@@ -95,6 +96,7 @@ echo ""
 ensure_file_from_example $SENTRY_CONFIG_PY
 ensure_file_from_example $SENTRY_CONFIG_YML
 ensure_file_from_example $SENTRY_EXTRA_REQUIREMENTS
+ensure_file_from_example $SYMBOLICATOR_CONFIG_YML
 
 if grep -xq "system.secret-key: '!!changeme!!'" $SENTRY_CONFIG_YML ; then
     echo ""
@@ -171,7 +173,7 @@ echo ""
 echo "Docker images built."
 
 ZOOKEEPER_SNAPSHOT_FOLDER_EXISTS=$($dcr zookeeper bash -c 'ls 2>/dev/null -Ubad1 -- /var/lib/zookeeper/data/version-2 | wc -l | tr -d '[:space:]'')
-if [ "$ZOOKEEPER_SNAPSHOT_FOLDER_EXISTS" -eq "1" ]; then  
+if [ "$ZOOKEEPER_SNAPSHOT_FOLDER_EXISTS" -eq "1" ]; then
   ZOOKEEPER_LOG_FILE_COUNT=$($dcr zookeeper bash -c 'ls 2>/dev/null -Ubad1 -- /var/lib/zookeeper/log/version-2/* | wc -l | tr -d '[:space:]'')
   ZOOKEEPER_SNAPSHOT_FILE_COUNT=$($dcr zookeeper bash -c 'ls 2>/dev/null -Ubad1 -- /var/lib/zookeeper/data/version-2/* | wc -l | tr -d '[:space:]'')
   # This is a workaround for a ZK upgrade bug: https://issues.apache.org/jira/browse/ZOOKEEPER-3056

symbolicator/config.example.yml

@@ -0,0 +1,8 @@
+# See: https://getsentry.github.io/symbolicator/#configuration
+cache_dir: "/data"
+bind: "0.0.0.0:3021"
+logging:
+  level: "warn"
+metrics:
+  statsd: null
+sentry_dsn: null # TODO: Automatically fill this with the internal project DSN