Add worker-rlimit-nofile configmap key

examples/customization/README.md

@@ -40,6 +40,7 @@ The table below summarizes some of the options. More options (extensions) are av
 | `nginx.org/listen-ports` | N/A | Configures HTTP ports that NGINX will listen on. | `[80]` |
 | `nginx.org/listen-ports-ssl` | N/A | Configures HTTPS ports that NGINX will listen on. | `[443]` |
 | N/A | `worker-processes` | Sets the value of the [worker_processes](http://nginx.org/en/docs/ngx_core_module.html#worker_processes) directive. | `auto` |
+| N/A | `worker-rlimit-nofile` | Sets the value of the [worker_rlimit_nofile](http://nginx.org/en/docs/ngx_core_module.html#worker_rlimit_nofile) directive. | N/A |
 | N/A | `worker-connections` | Sets the value of the [worker_connections](http://nginx.org/en/docs/ngx_core_module.html#worker_connections) directive. | `1024` |
 | N/A | `worker-cpu-affinity` | Sets the value of the [worker_cpu_affinity](http://nginx.org/en/docs/ngx_core_module.html#worker_cpu_affinity) directive. | N/A |
 | N/A | `worker-shutdown-timeout` | Sets the value of the [worker_shutdown_timeout](http://nginx.org/en/docs/ngx_core_module.html#worker_shutdown_timeout) directive. | N/A |

examples/customization/nginx-config.yaml

@@ -48,6 +48,7 @@ data:
     proxy_temp_path  /var/nginx/proxy_temp;
     charset  koi8-r;
   worker-processes: "1" # default is "auto". Sets the value of the worker_processes directive. See http://nginx.org/en/docs/ngx_core_module.html#worker_processes
+  worker-rlimit-nofile: "65536" # No default. Sets the value of the worker_rlimit_nofile directive. See http://nginx.org/en/docs/ngx_core_module.html#worker_rlimit_nofile
   worker-connections: "10240" # default is "1024". Sets the value of the worker_connections directive. See http://nginx.org/en/docs/ngx_core_module.html#worker_connections
   worker-cpu-affinity: "auto" # No default. Sets the value of the worker_cpu_affinity directive. See http://nginx.org/en/docs/ngx_core_module.html#worker_cpu_affinity
   worker-shutdown-timeout: "5m" # No default. Sets the value of the worker_shutdown_timeout directive. See http://nginx.org/en/docs/ngx_core_module.html#worker_shutdown_timeout

nginx-controller/controller/controller.go

@@ -598,6 +598,9 @@ func (lbc *LoadBalancerController) syncCfgm(task Task) {
 		if workerConnections, exists := cfgm.Data["worker-connections"]; exists {
 			cfg.MainWorkerConnections = workerConnections
 		}
+		if workerRlimitNofile, exists := cfgm.Data["worker-rlimit-nofile"]; exists {
+			cfg.MainWorkerRlimitNofile = workerRlimitNofile
+		}
 		if keepalive, exists, err := nginx.GetMapKeyAsInt(cfgm.Data, "keepalive", cfgm); exists {
 			if err != nil {
 				glog.Error(err)

nginx-controller/nginx/config.go

@@ -31,6 +31,7 @@ type Config struct {
 	MainWorkerCPUAffinity         string
 	MainWorkerShutdownTimeout     string
 	MainWorkerConnections         string
+	MainWorkerRlimitNofile        string
 	Keepalive                     int64
 
 	// http://nginx.org/en/docs/http/ngx_http_realip_module.html

nginx-controller/nginx/configurator.go

@@ -710,6 +710,7 @@ func (cnf *Configurator) UpdateConfig(config *Config, ingExes []*IngressEx) erro
 		WorkerCPUAffinity:     config.MainWorkerCPUAffinity,
 		WorkerShutdownTimeout: config.MainWorkerShutdownTimeout,
 		WorkerConnections:     config.MainWorkerConnections,
+		WorkerRlimitNofile:     config.MainWorkerRlimitNofile,
 	}
 
 	cnf.nginx.UpdateMainConfigFile(mainCfg)

nginx-controller/nginx/nginx.go

@@ -120,6 +120,7 @@ type NginxMainConfig struct {
 	WorkerCPUAffinity      string
 	WorkerShutdownTimeout  string
 	WorkerConnections      string
+	WorkerRlimitNofile      string
 }
 
 // NewUpstreamWithDefaultServer creates an upstream with the default server.

nginx-controller/nginx/templates/nginx-plus.tmpl

@@ -1,6 +1,8 @@
 
 user  nginx;
 worker_processes  {{.WorkerProcesses}};
+{{- if .WorkerRlimitNofile}}
+worker_rlimit_nofile {{.WorkerRlimitNofile}};{{end}}
 {{- if .WorkerCPUAffinity}}
 worker_cpu_affinity {{.WorkerCPUAffinity}};{{end}}
 {{- if .WorkerShutdownTimeout}}

nginx-controller/nginx/templates/nginx.tmpl

@@ -1,6 +1,8 @@
 
 user  nginx;
 worker_processes  {{.WorkerProcesses}};
+{{- if .WorkerRlimitNofile}}
+worker_rlimit_nofile {{.WorkerRlimitNofile}};{{end}}
 {{- if .WorkerCPUAffinity}}
 worker_cpu_affinity {{.WorkerCPUAffinity}};{{end}}
 {{- if .WorkerShutdownTimeout}}

nginx-controller/nginx/templates/templates_test.go

@@ -58,6 +58,7 @@ var mainCfg = nginx.NginxMainConfig{
 	WorkerCPUAffinity:      "auto",
 	WorkerShutdownTimeout:  "1m",
 	WorkerConnections:      "1024",
+	WorkerRlimitNofile:     "65536",
 }
 
 func TestIngressForNGINXPlus(t *testing.T) {