21285: Adds MaxGatewayTunnels' value to nginx's request queue size.

[arvados.git] / tools / salt-install / config_examples / multi_host / aws / pillars / nginx_balancer_configuration.sls

diff --git a/tools/salt-install/config_examples/multi_host/aws/pillars/nginx_balancer_configuration.sls b/tools/salt-install/config_examples/multi_host/aws/pillars/nginx_balancer_configuration.sls
index 92ad3af2e8381de829980eda56789d8331122344..25027b85716b6049c2c30d735529da261d51c67b 100644 (file)
--- a/tools/salt-install/config_examples/multi_host/aws/pillars/nginx_balancer_configuration.sls
+++ b/tools/salt-install/config_examples/multi_host/aws/pillars/nginx_balancer_configuration.sls
@@ -6,12 +6,19 @@
 {%- import_yaml "ssl_key_encrypted.sls" as ssl_key_encrypted_pillar %}
 {%- set domain = "__DOMAIN__" %}
 {%- set balancer_backends = "__CONTROLLER_NODES__".split(",") %}
+{%- set controller_nr = balancer_backends|length %}
+{%- set disabled_controller = "__DISABLED_CONTROLLER__" %}
+{%- set max_reqs = ("__CONTROLLER_MAX_QUEUED_REQUESTS__" or 128)|int %}
+{%- set max_tunnels = ("__CONTROLLER_MAX_GATEWAY_TUNNELS__" or 1000)|int %}
 
 ### NGINX
 nginx:
   ### SERVER
   server:
     config:
+      worker_rlimit_nofile: {{ (max_reqs * 3 + max_tunnels) * controller_nr }}
+      events:
+        worker_connections: {{ (max_reqs * 3 + max_tunnels) * controller_nr }}
       ### STREAMS
       http:
         'geo $external_client':
@@ -20,7 +27,11 @@ nginx:
           '__CLUSTER_INT_CIDR__': 0
         upstream controller_upstream:
         {%- for backend in balancer_backends %}
+          {%- if disabled_controller == "" or not backend.startswith(disabled_controller) %}
           'server {{ backend }}:80': ''
+          {%- else %}
+          'server {{ backend }}:80 down': ''
+          {% endif %}
         {%- endfor %}
 
   ### SNIPPETS