config.md

Configuration reference

The kubedock binary has the following commands available:

• server Start the kubedock api server
• dind Start the kubedock docker-in-docker proxy
• readme Display project readme
• version Display kubedock version details

The server command is the actual kubedock server, and is the command to start kubedock. The table below shows all possible commands and possible arguments. Some commands are also configurable via environment variables, as shown in the environment variable column.

command	argument	default	environment variable	description
server	--listen-addr	:2475	SERVER_LISTEN_ADDR	Webserver listen address
server	--unix-socket			Unix socket to listen to (instead of port)
server	--tls-enable	false	SERVER_TLS_ENABLE	Enable TLS on api server
server	--tls-key-file		SERVER_TLS_CERT_FILE	TLS keyfile
server	--tls-cert-file		SERVER_TLS_CERT_FILE	TLS certificate file
server	--namespace / -n		NAMESPACE	Namespace in which containers should be orchestrated
server	--initimage	joyrex2001/kubedock:version	INIT_IMAGE	Image to use as initcontainer for volume setup
server	--dindimage	joyrex2001/kubedock:version	DIND_IMAGE	Image to use as sidecar container for docker-in-docker support
server	--disable-dind	false	DISABLE_DIND	Disable docker-in-docker support
server	--pull-policy	ifnotpresent	PULL_POLICY	Pull policy that should be applied (ifnotpresent,never,always)
server	--service-account	default	SERVICE_ACCOUNT	Service account that should be used for deployed pods
server	--image-pull-secrets		IMAGE_PULL_SECRETS	Comma separated list of image pull secrets that should be used
server	--pod-template		POD_TEMPLATE	Pod file that should be used as the base for creating pods
server	--pod-name-prefix		POD_NAME_PREFIX	The prefix of the name to be used in the created pods
server	--inspector / -i	false		Enable image inspect to fetch container port config from a registry
server	--timeout / -t	1m	TIME_OUT	Container creating/deletion timeout
server	--reapmax / -r	60m	REAPER_REAPMAX	Reap all resources older than this time
server	--request-cpu		K8S_REQUEST_CPU	Default k8s cpu resource request (optionally add ,limit)
server	--request-memory		K8S_REQUEST_MEMORY	Default k8s memory resource request (optionally add ,limit)
server	--node-selector		K8S_NODE_SELECTOR	Default k8s node selector in the form of key1=value1[,key2=value2]
server	--runas-user		K8S_RUNAS_USER	Numeric UID to run pods as (defaults to UID in image)
server	--lock	false		Lock namespace for this instance
server	--lock-timeout	15m		Max time trying to acquire namespace lock
server	--verbosity / -v	1	VERBOSITY	Log verbosity level
server	--prune-start / -P	false		Prune all existing kubedock resources before starting
server	--port-forward	false		Open port-forwards for all services
server	--reverse-proxy	false		Reverse proxy all services via 0.0.0.0 on the kubedock host as well
server	--pre-archive	false		Enable support for copying single files to containers without starting them
server	--annotation		K8S_ANNOTATION_annotation	annotation that need to be added to every k8s resource (key=value)
server	--label		K8S_LABEL_label	label that need to be added to every k8s resource (key=value)
server	--active-deadline-seconds	-1	K8S_ACTIVE_DEADLINE_SECONDS	Default value for pod deadline, in seconds (a negative value means no deadline)
dind	--unix-socket	/var/run/docker.sock		Unix socket to listen to
dind	--kubedock-url			Kubedock url to proxy requests to
dind	--verbosity / -v	1	VERBOSITY	Log verbosity level
readme				Display project readme
readme	config			Display configuration reference
readme	licence			Display project licence
version				Display kubedock version details

Labels and annotations

Labels added to container images are added as annotations and labels to the created kubernetes pods. Additional labels and annotations can be added with the --annotation and --label cli argument. Environment variables that start with K8S_ANNOTATION_ and K8S_LABEL_ will be added as a kubernetes annotation or label as well. For example K8S_ANNOTATION_FOO will create an annotation foo with the value of the environment variable. Note that annotations and labels added via environment variables or cli will not be processed by kubedock if they have a specific control function. For these occasions specific environment variables and cli arguments are present.