Tune production resource defaults

Author: Omni

docker-compose/production-hardening.md

@@ -11,10 +11,10 @@ The compose service files define non-secret defaults that can be overridden by
 the production environment:
 
 ```sh
-BACKEND_MEM_LIMIT=5g
-BACKEND_MEMSWAP_LIMIT=5g
-DB_MEM_LIMIT=5g
-DB_MEMSWAP_LIMIT=5g
+BACKEND_MEM_LIMIT=4g
+BACKEND_MEMSWAP_LIMIT=4g
+DB_MEM_LIMIT=6g
+DB_MEMSWAP_LIMIT=6g
 STATS_MEM_LIMIT=1g
 STATS_MEMSWAP_LIMIT=1g
 STATS_DB_MEM_LIMIT=1g

docker-compose/services/backend.yml

@@ -5,8 +5,8 @@ services:
     image: blockscout/${DOCKER_REPO:-blockscout}:${DOCKER_TAG:-latest}
     pull_policy: always
     restart: always
-    mem_limit: ${BACKEND_MEM_LIMIT:-5g}
-    memswap_limit: ${BACKEND_MEMSWAP_LIMIT:-5g}
+    mem_limit: ${BACKEND_MEM_LIMIT:-4g}
+    memswap_limit: ${BACKEND_MEMSWAP_LIMIT:-4g}
     stop_grace_period: 5m
     container_name: 'backend'
     command: sh -c "bin/blockscout eval \"Elixir.Explorer.ReleaseTasks.create_and_migrate()\" && bin/blockscout start"

docker-compose/services/db.yml

@@ -16,8 +16,8 @@ services:
     user: 2000:2000
     shm_size: 256m
     restart: always
-    mem_limit: ${DB_MEM_LIMIT:-5g}
-    memswap_limit: ${DB_MEMSWAP_LIMIT:-5g}
+    mem_limit: ${DB_MEM_LIMIT:-6g}
+    memswap_limit: ${DB_MEMSWAP_LIMIT:-6g}
     container_name: 'db'
     command: postgres -c 'max_connections=200' -c 'client_connection_check_interval=60000'
     environment: