Merge branch 'fine-tune-review-app-resource-requests' into 'master'

Fine-tune Review Apps pod resource requests

See merge request gitlab-org/gitlab-ce!24630

scripts/review_apps/review-apps.sh

@@ -143,11 +143,16 @@ HELM_CMD=$(cat << EOF
     --set global.hosts.hostSuffix="$HOST_SUFFIX" \
     --set global.hosts.domain="$REVIEW_APPS_DOMAIN" \
     --set certmanager.install=false \
+    --set prometheus.install=false \
     --set global.ingress.configureCertmanager=false \
     --set global.ingress.tls.secretName=tls-cert \
     --set global.ingress.annotations."external-dns\.alpha\.kubernetes\.io/ttl"="10"
+    --set nginx-ingress.defaultBackend.resources.requests.memory=7Mi \
+    --set nginx-ingress.controller.resources.requests.memory=440M \
+    --set nginx-ingress.controller.replicaCount=2 \
     --set gitlab.unicorn.resources.requests.cpu=200m \
     --set gitlab.sidekiq.resources.requests.cpu=100m \
+    --set gitlab.sidekiq.resources.requests.memory=800M \
     --set gitlab.gitlab-shell.resources.requests.cpu=100m \
     --set redis.resources.requests.cpu=100m \
     --set minio.resources.requests.cpu=100m \