ingress-nginx-helm/docs/user-guide/cli-arguments.md

Command line arguments

The following command line arguments are accepted by the Ingress controller executable.

They are set in the container spec of the nginx-ingress-controller Deployment manifest

Argument	Description
--add_dir_header	If true, adds the file directory to the header
--alsologtostderr	log to standard error as well as files
--annotations-prefix	Prefix of the Ingress annotations specific to the NGINX controller. (default "nginx.ingress.kubernetes.io")
--apiserver-host	Address of the Kubernetes API server. Takes the form "protocol://address:port". If not specified, it is assumed the program runs inside a Kubernetes cluster and local discovery is attempted.
--certificate-authority	Path to a cert file for the certificate authority. This certificate is used only when the flag --apiserver-host is specified.
--configmap	Name of the ConfigMap containing custom global configurations for the controller.
--default-backend-service	Service used to serve HTTP requests not matching any known server name (catch-all). Takes the form "namespace/name". The controller configures NGINX to forward requests to the first port of this Service.
--default-server-port	Port to use for exposing the default server (catch-all). (default 8181)
--default-ssl-certificate	Secret containing a SSL certificate to be used by the default HTTPS server (catch-all). Takes the form "namespace/name".
--disable-catch-all	Disable support for catch-all Ingresses
--election-id	Election id to use for Ingress status updates. (default "ingress-controller-leader")
--enable-metrics	Enables the collection of NGINX metrics (default true)
--enable-ssl-chain-completion	Autocomplete SSL certificate chains with missing intermediate CA certificates. Certificates uploaded to Kubernetes must have the "Authority Information Access" X.509 v3 extension for this to succeed.
--enable-ssl-passthrough	Enable SSL Passthrough.
--health-check-path	URL path of the health check endpoint. Configured inside the NGINX status server. All requests received on the port defined by the healthz-port parameter are forwarded internally to this path. (default "/healthz")
--health-check-timeout	Time limit, in seconds, for a probe to health-check-path to succeed. (default 10)
--healthz-port	Port to use for the healthz endpoint. (default 10254)
--http-port	Port to use for servicing HTTP traffic. (default 80)
--https-port	Port to use for servicing HTTPS traffic. (default 443)
--ingress-class	Name of the ingress class this controller satisfies. The class of an Ingress object is set using the field IngressClassName in Kubernetes clusters version v1.18.0 or higher or the annotation "kubernetes.io/ingress.class" (deprecated). If this parameter is not set, or set to the default value of "nginx", it will handle ingresses with either an empty or "nginx" class name.
--kubeconfig	Path to a kubeconfig file containing authorization and API server information.
--log_backtrace_at	when logging hits line file:N, emit a stack trace (default :0)
--log_dir	If non-empty, write log files in this directory
--log_file	If non-empty, use this log file
--log_file_max_size	Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
--logtostderr	log to standard error instead of files (default true)
--maxmind-edition-ids	Maxmind edition ids to download GeoLite2 Databases. (default "GeoLite2-City,GeoLite2-ASN")
--maxmind-retries-timeout	Maxmind downloading delay between 1st and 2nd attempt, 0s - do not retry to download if something went wrong. (default 0s)
--maxmind-retries-count	Number of attempts to download the GeoIP DB. (default 1)
--maxmind-license-key	Maxmind license key to download GeoLite2 Databases. https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases
--metrics-per-host	Export metrics per-host (default true)
--profiler-port	Port to use for expose the ingress controller Go profiler when it is enabled. (default 10245)
--profiling	Enable profiling via web interface host:port/debug/pprof/ (default true)
--publish-service	Service fronting the Ingress controller. Takes the form "namespace/name". When used together with update-status, the controller mirrors the address of this service's endpoints to the load-balancer status of all Ingress objects it satisfies.
--publish-status-address	Customized address (or addresses, separated by comma) to set as the load-balancer status of Ingress objects this controller satisfies. Requires the update-status parameter.
--report-node-internal-ip-address	Set the load-balancer status of Ingress objects to internal Node addresses instead of external. Requires the update-status parameter.
--skip_headers	If true, avoid header prefixes in the log messages
--skip_log_headers	If true, avoid headers when opening log files
--ssl-passthrough-proxy-port	Port to use internally for SSL Passthrough. (default 442)
--status-port	Port to use for the lua HTTP endpoint configuration. (default 10246)
--status-update-interval	Time interval in seconds in which the status should check if an update is required. Default is 60 seconds (default 60)
--stderrthreshold	logs at or above this threshold go to stderr (default 2)
--stream-port	Port to use for the lua TCP/UDP endpoint configuration. (default 10247)
--sync-period	Period at which the controller forces the repopulation of its local object stores. Disabled by default.
--sync-rate-limit	Define the sync frequency upper limit (default 0.3)
--tcp-services-configmap	Name of the ConfigMap containing the definition of the TCP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form "namespace/name:port", where "port" can either be a port number or name. TCP ports 80 and 443 are reserved by the controller for servicing HTTP traffic.
--udp-services-configmap	Name of the ConfigMap containing the definition of the UDP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form "namespace/name:port", where "port" can either be a port name or number.
--update-status	Update the load-balancer status of Ingress objects this controller satisfies. Requires setting the publish-service parameter to a valid Service reference. (default true)
--update-status-on-shutdown	Update the load-balancer status of Ingress objects when the controller shuts down. Requires the update-status parameter. (default true)
--shutdown-grace-period	Seconds to wait after receiving the shutdown signal, before stopping the nginx process.
-v, --v Level	number for the log level verbosity
--validating-webhook	The address to start an admission controller on to validate incoming ingresses. Takes the form ":port". If not provided, no admission controller is started.
--validating-webhook-certificate	The path of the validating webhook certificate PEM.
--validating-webhook-key	The path of the validating webhook key PEM.
--version	Show release information about the NGINX Ingress controller and exit.
--vmodule	comma-separated list of pattern=N settings for file-filtered logging
--watch-namespace	Namespace the controller watches for updates to Kubernetes objects. This includes Ingresses, Services and all configuration resources. All namespaces are watched if this parameter is left empty.