cert-manager

cert-manager is a Kubernetes addon to automate the management and issuance of TLS certificates from various issuing sources.

It will ensure certificates are valid and up to date periodically, and attempt to renew certificates at an appropriate time before expiry.

Prerequisites

• Kubernetes 1.7+

Installing the Chart

Full installation instructions, including details on how to configure extra functionality in cert-manager can be found in the getting started docs.

To install the chart with the release name my-release:

$ helm install --name my-release stable/cert-manager

In order to begin issuing certificates, you will need to set up a ClusterIssuer or Issuer resource (for example, by creating a 'letsencrypt-staging' issuer).

More information on the different types of issuers and how to configure them can be found in our documentation:

https://cert-manager.readthedocs.io/en/latest/reference/issuers.html

For information on how to configure cert-manager to automatically provision Certificates for Ingress resources, take a look at the ingress-shim documentation:

https://cert-manager.readthedocs.io/en/latest/reference/ingress-shim.html

Tip: List all releases using helm list

Uninstalling the Chart

To uninstall/delete the my-release deployment:

$ helm delete my-release

The command removes all the Kubernetes components associated with the chart and deletes the release.

Configuration

The following table lists the configurable parameters of the cert-manager chart and their default values.

Parameter	Description	Default
image.repository	Image repository	quay.io/jetstack/cert-manager-controller
image.tag	Image tag	v0.3.1
image.pullPolicy	Image pull policy	IfNotPresent
replicaCount	Number of cert-manager replicas	1
createCustomResource	Create CRD/TPR with this release	true
clusterResourceNamespace	Override the namespace used to store DNS provider credentials etc. for ClusterIssuer resources	Same namespace as cert-manager pod
leaderElection.Namespace	Override the namespace used to store the ConfigMap for leader election	Same namespace as cert-manager pod
certificateResourceShortNames	Custom aliases for Certificate CRD	["cert", "certs"]
extraArgs	Optional flags for cert-manager	[]
rbac.create	If true, create and use RBAC resources	true
serviceAccount.create	If true, create a new service account	true
serviceAccount.name	Service account to be used. If not set and serviceAccount.create is true, a name is generated using the fullname template
resources	CPU/memory resource requests/limits	requests: {cpu: 10m, memory: 32Mi}
nodeSelector	Node labels for pod assignment	{}
affinity	Node affinity for pod assignment	{}
tolerations	Node tolerations for pod assignment	[]
ingressShim.defaultIssuerName	Optional default issuer to use for ingress resources
ingressShim.defaultIssuerKind	Optional default issuer kind to use for ingress resources
ingressShim.defaultACMEChallengeType	Optional default challenge type to use for ingresses using ACME issuers
ingressShim.defaultACMEDNS01ChallengeProvider	Optional default DNS01 challenge provider to use for ingresses using ACME issuers with DNS01
podAnnotations	Annotations to add to the cert-manager pod	{}
podDnsPolicy	Optional cert-manager pod DNS policy
podDnsConfig	Optional cert-manager pod DNS configurations
podLabels	Labels to add to the cert-manager pod	{}

Specify each parameter using the --set key=value[,key=value] argument to helm install.

Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,

$ helm install --name my-release -f values.yaml .

Tip: You can use the default values.yaml

Contributing

This chart is maintained at github.com/jetstack/cert-manager.