Use pgbouncer

Author: frederikspang

docker-compose.yml

@@ -36,7 +36,7 @@ x-sentry-defaults: &sentry_defaults
       <<: *depends_on-healthy
     kafka:
       <<: *depends_on-healthy
-    pgcat:
+    pgbouncer:
       <<: *depends_on-healthy
     memcached:
       <<: *depends_on-default
@@ -146,20 +146,24 @@ services:
       POSTGRES_PASSWORD: "sentry"
     volumes:
       - "sentry-postgres:/var/lib/postgresql/data"
-  pgcat:
-    image: "ghcr.io/postgresml/pgcat:v1.2.0"
+  pgbouncer:
+    image: "edoburu/pgbouncer:v1.24.1-p1"
     healthcheck:
       <<: *healthcheck_defaults
       # Using default user "postgres" from sentry/sentry.conf.example.py or value of POSTGRES_USER if provided
       test: ["CMD-SHELL", "PGPASSWORD=\"sentry\" psql -U postgres -p 5432 -h 127.0.0.1 -tA -c \"select 1;\" -d postgres >/dev/null"]
     depends_on:
       postgres:
         <<: *depends_on-healthy
-    volumes:
-      - type: bind
-        read_only: true
-        source: ./pgcat.toml
-        target: /etc/pgcat/pgcat.toml
+    environment:
+      DB_USER: ${POSTGRES_USER:-postgres}
+      DB_PASSWORD: sentry
+      DB_HOST: postgres
+      DB_NAME: postgres
+      POOL_MODE: transaction
+      ADMIN_USERS: postgres,sentry
+      MAX_CLIENT_CONN: 10000
+
   kafka:
     <<: *restart_policy
     image: "confluentinc/cp-kafka:7.6.1"

install/set-up-and-migrate-database.sh

@@ -3,7 +3,7 @@ echo "${_group}Setting up / migrating database ..."
 if [[ -z "${SKIP_SENTRY_MIGRATIONS:-}" ]]; then
   # Fixes https://github.com/getsentry/self-hosted/issues/2758, where a migration fails due to indexing issue
   start_service_and_wait_ready postgres
-  start_service_and_wait_ready pgcat
+  start_service_and_wait_ready pgbouncer
 
   os=$($dc exec postgres cat /etc/os-release | grep 'ID=debian')
   if [[ -z $os ]]; then

pgcat.toml

@@ -24,7 +24,7 @@ on the host filesystem. Commands that write files should write them to the '/sen
 # Actual invocation that runs the command in the container.
 invocation() {
   start_service_and_wait_ready postgres
-  start_service_and_wait_ready pgcat
+  start_service_and_wait_ready pgbouncer
   start_service_and_wait_ready redis --wait
   $dcr --no-deps -v "$VOLUME_MAPPING" -T -e SENTRY_LOG_LEVEL=CRITICAL web "$@" 2>&1
 }

sentry-admin.sh

@@ -48,7 +48,7 @@ def get_internal_network():
         "NAME": "postgres",
         "USER": "postgres",
         "PASSWORD": "sentry",
-        "HOST": "pgcat",
+        "HOST": "pgbouncer",
         "PORT": "",
     }
 }