Update middlewares to latest stable versions (getsentry#1002)

This PR is a try to update most middlewares used by Sentry to latest stable versions.
[As mentioned in the forum](https://forum.sentry.io/t/middleware-version-compatibility/14353/2) I didn't update Postgresql & Clickhouse due to known issues.

I also :
- changed versions to immutable tags (MAJOR.MINOR.PATCH semver versions when possible).
- changed nginx to the Alpine variant

docker-compose.yml

@@ -58,7 +58,7 @@ services:
       - "sentry-smtp-log:/var/log/exim4"
   memcached:
     <<: *restart_policy
-    image: "memcached:1.5-alpine"
+    image: "memcached:1.6.9-alpine"
     healthcheck:
       # From: https://stackoverflow.com/a/31877626/5155484
       test: echo stats | nc 127.0.0.1 11211
@@ -68,7 +68,7 @@ services:
       start_period: 3s
   redis:
     <<: *restart_policy
-    image: "redis:5.0-alpine"
+    image: "redis:6.2.4-alpine"
     healthcheck:
       test: redis-cli ping
       interval: 2s
@@ -103,7 +103,7 @@ services:
         target: /opt/sentry/
   zookeeper:
     <<: *restart_policy
-    image: "confluentinc/cp-zookeeper:5.5.0"
+    image: "confluentinc/cp-zookeeper:6.2.0"
     environment:
       ZOOKEEPER_CLIENT_PORT: "2181"
       CONFLUENT_SUPPORT_METRICS_ENABLE: "false"
@@ -123,7 +123,7 @@ services:
     <<: *restart_policy
     depends_on:
       - zookeeper
-    image: "confluentinc/cp-kafka:5.5.0"
+    image: "confluentinc/cp-kafka:6.2.0"
     environment:
       KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
       KAFKA_ADVERTISED_LISTENERS: "PLAINTEXT://kafka:9092"
@@ -165,7 +165,7 @@ services:
       # You might want to change this to a higher value (and ensure your host has enough memory)
       MAX_MEMORY_USAGE_RATIO: 0.3
   geoipupdate:
-    image: "maxmindinc/geoipupdate:latest"
+    image: "maxmindinc/geoipupdate:v4.7.1"
     # Override the entrypoint in order to avoid using envvars for config.
     # Futz with settings so we can keep mmdb and conf in same dir on host
     # (image looks for them in separate dirs by default).
@@ -272,7 +272,7 @@ services:
     <<: *restart_policy
     ports:
       - "$SENTRY_BIND:80/tcp"
-    image: "nginx:1.16"
+    image: "nginx:1.21.0-alpine"
     volumes:
       - type: bind
         read_only: true

install/wrap-up.sh

@@ -3,7 +3,7 @@ if [[ "$MINIMIZE_DOWNTIME" ]]; then
 
   # Start the whole setup, except nginx and relay.
   $dc up -d --remove-orphans $($dc config --services | grep -v -E '^(nginx|relay)$')
-  $dc exec -T nginx service nginx reload
+  $dc exec -T nginx nginx -s reload
 
   docker run --rm --network="${COMPOSE_PROJECT_NAME}_default" alpine ash \
     -c 'while [[ "$(wget -T 1 -q -O- http://web:9000/_health/)" != "ok" ]]; do sleep 0.5; done'