Add PASSENGER_MAX_POOL_SIZE env var for web-api

Author: Rub21

osm-seed/templates/web/web-deployment.yaml

@@ -167,6 +167,8 @@ spec:
               value: "127.0.0.1"
             - name: CGIMAP_PORT
               value: {{ quote 8000 }}
+            - name: PASSENGER_MAX_POOL_SIZE
+              value: {{ .Values.web.env.PASSENGER_MAX_POOL_SIZE | default "6" | quote }}
             {{- end }}
           volumeMounts:
             - mountPath: /dev/shm

osm-seed/values.yaml

@@ -162,6 +162,7 @@ web:
     RAILS_STORAGE_REGION: us-east-1
     RAILS_STORAGE_BUCKET: osmseed-website-bucket
     EXTERNAL_CGIMAP: false
+    PASSENGER_MAX_POOL_SIZE: 6
   resources:
     enabled: false
     requests: