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+# 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 1.20+
+
+## Installing the Chart
+
+Full installation instructions, including details on how to configure extra
+functionality in cert-manager can be found in the [installation docs](https://cert-manager.io/docs/installation/kubernetes/).
+
+Before installing the chart, you must first install the cert-manager CustomResourceDefinition resources.
+This is performed in a separate step to allow you to easily uninstall and reinstall cert-manager without deleting your installed custom resources.
+
+```bash
+$ kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.12.2/cert-manager.crds.yaml
+```
+
+To install the chart with the release name `my-release`:
+
+```console
+## Add the Jetstack Helm repository
+$ helm repo add jetstack https://charts.jetstack.io
+
+## Install the cert-manager helm chart
+$ helm install my-release --namespace cert-manager --version v1.12.2 jetstack/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.io/docs/configuration/).
+
+For information on how to configure cert-manager to automatically provision
+Certificates for Ingress resources, take a look at the
+[Securing Ingresses documentation](https://cert-manager.io/docs/usage/ingress/).
+
+> **Tip**: List all releases using `helm list`
+
+## Upgrading the Chart
+
+Special considerations may be required when upgrading the Helm chart, and these
+are documented in our full [upgrading guide](https://cert-manager.io/docs/installation/upgrading/).
+
+**Please check here before performing upgrades!**
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```console
+$ helm delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+If you want to completely uninstall cert-manager from your cluster, you will also need to
+delete the previously installed CustomResourceDefinition resources:
+
+```console
+$ kubectl delete -f https://github.com/cert-manager/cert-manager/releases/download/v1.12.2/cert-manager.crds.yaml
+```
+
+## Configuration
+
+The following table lists the configurable parameters of the cert-manager chart and their default values.
+
+| Parameter | Description | Default |
+| --------- | ----------- | ------- |
+| `global.imagePullSecrets` | Reference to one or more secrets to be used when pulling images | `[]` |
+| `global.commonLabels` | Labels to apply to all resources | `{}` |
+| `global.rbac.create` | If `true`, create and use RBAC resources (includes sub-charts) | `true` |
+| `global.priorityClassName`| Priority class name for cert-manager and webhook pods | `""` |
+| `global.podSecurityPolicy.enabled` | If `true`, create and use PodSecurityPolicy (includes sub-charts) | `false` |
+| `global.podSecurityPolicy.useAppArmor` | If `true`, use Apparmor seccomp profile in PSP | `true` |
+| `global.leaderElection.namespace` | Override the namespace used to store the ConfigMap for leader election | `kube-system` |
+| `global.leaderElection.leaseDuration` | The duration that non-leader candidates will wait after observing a leadership renewal until attempting to acquire leadership of a led but unrenewed leader slot. This is effectively the maximum duration that a leader can be stopped before it is replaced by another candidate | |
+| `global.leaderElection.renewDeadline` | The interval between attempts by the acting master to renew a leadership slot before it stops leading. This must be less than or equal to the lease duration | |
+| `global.leaderElection.retryPeriod` | The duration the clients should wait between attempting acquisition and renewal of a leadership | |
+| `installCRDs` | If true, CRD resources will be installed as part of the Helm chart. If enabled, when uninstalling CRD resources will be deleted causing all installed custom resources to be DELETED | `false` |
+| `image.repository` | Image repository | `quay.io/jetstack/cert-manager-controller` |
+| `image.tag` | Image tag | `v1.12.2` |
+| `image.pullPolicy` | Image pull policy | `IfNotPresent` |
+| `replicaCount` | Number of cert-manager replicas | `1` |
+| `clusterResourceNamespace` | Override the namespace used to store DNS provider credentials etc. for ClusterIssuer resources | Same namespace as cert-manager pod |
+| `featureGates` | Set of comma-separated key=value pairs that describe feature gates on the controller. Some feature gates may also have to be enabled on other components, and can be set supplying the `feature-gate` flag to `<component>.extraArgs` | `` |
+| `extraArgs` | Optional flags for cert-manager | `[]` |
+| `extraEnv` | Optional environment variables for cert-manager | `[]` |
+| `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 | |
+| `serviceAccount.annotations` | Annotations to add to the service account | |
+| `serviceAccount.automountServiceAccountToken` | Automount API credentials for the Service Account | `true` |
+| `volumes` | Optional volumes for cert-manager | `[]` |
+| `volumeMounts` | Optional volume mounts for cert-manager | `[]` |
+| `resources` | CPU/memory resource requests/limits | `{}` |
+| `securityContext` | Security context for the controller pod assignment | refer to [Default Security Contexts](#default-security-contexts) |
+| `containerSecurityContext` | Security context to be set on the controller component container | refer to [Default Security Contexts](#default-security-contexts) |
+| `nodeSelector` | Node labels for pod assignment | `{}` |
+| `affinity` | Node affinity for pod assignment | `{}` |
+| `tolerations` | Node tolerations for pod assignment | `[]` |
+| `topologySpreadConstraints` | Topology spread constraints for pod assignment | `[]` |
+| `livenessProbe.enabled` | Enable or disable the liveness probe for the controller container in the controller Pod. See https://cert-manager.io/docs/installation/best-practice/ to learn about when you might want to enable this livenss probe. | `false` |
+| `livenessProbe.initialDelaySeconds` | The liveness probe initial delay (in seconds) | `10` |
+| `livenessProbe.periodSeconds` | The liveness probe period (in seconds) | `10` |
+| `livenessProbe.timeoutSeconds` | The liveness probe timeout (in seconds) | `10` |
+| `livenessProbe.periodSeconds` | The liveness probe period (in seconds) | `10` |
+| `livenessProbe.successThreshold` | The liveness probe success threshold | `1` |
+| `livenessProbe.failureThreshold` | The liveness probe failure threshold | `8` |
+| `ingressShim.defaultIssuerName` | Optional default issuer to use for ingress resources | |
+| `ingressShim.defaultIssuerKind` | Optional default issuer kind to use for ingress resources | |
+| `ingressShim.defaultIssuerGroup` | Optional default issuer group to use for ingress resources | |
+| `prometheus.enabled` | Enable Prometheus monitoring | `true` |
+| `prometheus.servicemonitor.enabled` | Enable Prometheus Operator ServiceMonitor monitoring | `false` |
+| `prometheus.servicemonitor.namespace` | Define namespace where to deploy the ServiceMonitor resource | (namespace where you are deploying) |
+| `prometheus.servicemonitor.prometheusInstance` | Prometheus Instance definition | `default` |
+| `prometheus.servicemonitor.targetPort` | Prometheus scrape port | `9402` |
+| `prometheus.servicemonitor.path` | Prometheus scrape path | `/metrics` |
+| `prometheus.servicemonitor.interval` | Prometheus scrape interval | `60s` |
+| `prometheus.servicemonitor.labels` | Add custom labels to ServiceMonitor | |
+| `prometheus.servicemonitor.scrapeTimeout` | Prometheus scrape timeout | `30s` |
+| `prometheus.servicemonitor.honorLabels` | Enable label honoring for metrics scraped by Prometheus (see [Prometheus scrape config docs](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config) for details). By setting `honorLabels` to `true`, Prometheus will prefer label contents given by cert-manager on conflicts. Can be used to remove the "exported_namespace" label for example. | `false` |
+| `podAnnotations` | Annotations to add to the cert-manager pod | `{}` |
+| `deploymentAnnotations` | Annotations to add to the cert-manager deployment | `{}` |
+| `podDisruptionBudget.enabled` | Adds a PodDisruptionBudget for the cert-manager deployment | `false` |
+| `podDisruptionBudget.minAvailable` | Configures the minimum available pods for voluntary disruptions. Cannot used if `maxUnavailable` is set. | `1` |
+| `podDisruptionBudget.maxUnavailable` | Configures the maximum unavailable pods for voluntary disruptions. Cannot used if `minAvailable` is set. | |
+| `podDnsPolicy` | Optional cert-manager pod [DNS policy](https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pods-dns-policy) | |
+| `podDnsConfig` | Optional cert-manager pod [DNS configurations](https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pods-dns-config) | |
+| `podLabels` | Labels to add to the cert-manager pod | `{}` |
+| `serviceLabels` | Labels to add to the cert-manager controller service | `{}` |
+| `serviceAnnotations` | Annotations to add to the cert-manager service | `{}` |
+| `http_proxy` | Value of the `HTTP_PROXY` environment variable in the cert-manager pod | |
+| `https_proxy` | Value of the `HTTPS_PROXY` environment variable in the cert-manager pod | |
+| `no_proxy` | Value of the `NO_PROXY` environment variable in the cert-manager pod | |
+| `dns01RecursiveNameservers` | Comma separated string with host and port of the recursive nameservers cert-manager should query | `` |
+| `dns01RecursiveNameserversOnly` | Forces cert-manager to only use the recursive nameservers for verification. | `false` |
+| `enableCertificateOwnerRef` | When this flag is enabled, secrets will be automatically removed when the certificate resource is deleted | `false` |
+| `webhook.replicaCount` | Number of cert-manager webhook replicas | `1` |
+| `webhook.timeoutSeconds` | Seconds the API server should wait the webhook to respond before treating the call as a failure. | `10` |
+| `webhook.podAnnotations` | Annotations to add to the webhook pods | `{}` |
+| `webhook.podLabels` | Labels to add to the cert-manager webhook pod | `{}` |
+| `webhook.serviceLabels` | Labels to add to the cert-manager webhook service | `{}` |
+| `webhook.deploymentAnnotations` | Annotations to add to the webhook deployment | `{}` |
+| `webhook.podDisruptionBudget.enabled` | Adds a PodDisruptionBudget for the cert-manager deployment | `false` |
+| `webhook.podDisruptionBudget.minAvailable` | Configures the minimum available pods for voluntary disruptions. Cannot used if `maxUnavailable` is set. | `1` |
+| `webhook.podDisruptionBudget.maxUnavailable` | Configures the maximum unavailable pods for voluntary disruptions. Cannot used if `minAvailable` is set. | |
+| `webhook.mutatingWebhookConfigurationAnnotations` | Annotations to add to the mutating webhook configuration | `{}` |
+| `webhook.validatingWebhookConfigurationAnnotations` | Annotations to add to the validating webhook configuration | `{}` |
+| `webhook.serviceAnnotations` | Annotations to add to the webhook service | `{}` |
+| `webhook.config` | WebhookConfiguration YAML used to configure flags for the webhook. Generates a ConfigMap containing contents of the field. See `values.yaml` for example. | `{}` |
+| `webhook.extraArgs` | Optional flags for cert-manager webhook component | `[]` |
+| `webhook.serviceAccount.create` | If `true`, create a new service account for the webhook component | `true` |
+| `webhook.serviceAccount.name` | Service account for the webhook component to be used. If not set and `webhook.serviceAccount.create` is `true`, a name is generated using the fullname template | |
+| `webhook.serviceAccount.annotations` | Annotations to add to the service account for the webhook component | |
+| `webhook.serviceAccount.automountServiceAccountToken` | Automount API credentials for the webhook Service Account | |
+| `webhook.resources` | CPU/memory resource requests/limits for the webhook pods | `{}` |
+| `webhook.nodeSelector` | Node labels for webhook pod assignment | `{}` |
+| `webhook.networkPolicy.enabled` | Enable default network policies for webhooks egress and ingress traffic | `false` |
+| `webhook.networkPolicy.ingress` | Sets ingress policy block. See NetworkPolicy documentation. See `values.yaml` for example. | `{}` |
+| `webhook.networkPolicy.egress` | Sets ingress policy block. See NetworkPolicy documentation. See `values.yaml` for example. | `{}` |
+| `webhook.affinity` | Node affinity for webhook pod assignment | `{}` |
+| `webhook.tolerations` | Node tolerations for webhook pod assignment | `[]` |
+| `webhook.topologySpreadConstraints` | Topology spread constraints for webhook pod assignment | `[]` |
+| `webhook.image.repository` | Webhook image repository | `quay.io/jetstack/cert-manager-webhook` |
+| `webhook.image.tag` | Webhook image tag | `v1.12.2` |
+| `webhook.image.pullPolicy` | Webhook image pull policy | `IfNotPresent` |
+| `webhook.securePort` | The port that the webhook should listen on for requests. | `10250` |
+| `webhook.securityContext` | Security context for webhook pod assignment | refer to [Default Security Contexts](#default-security-contexts) |
+| `webhook.containerSecurityContext` | Security context to be set on the webhook component container | refer to [Default Security Contexts](#default-security-contexts) |
+| `webhook.hostNetwork` | If `true`, run the Webhook on the host network. | `false` |
+| `webhook.serviceType` | The type of the `Service`. | `ClusterIP` |
+| `webhook.loadBalancerIP` | The specific load balancer IP to use (when `serviceType` is `LoadBalancer`). | |
+| `webhook.url.host` | The host to use to reach the webhook, instead of using internal cluster DNS for the service. | |
+| `webhook.livenessProbe.failureThreshold` | The liveness probe failure threshold | `3` |
+| `webhook.livenessProbe.initialDelaySeconds` | The liveness probe initial delay (in seconds) | `60` |
+| `webhook.livenessProbe.periodSeconds` | The liveness probe period (in seconds) | `10` |
+| `webhook.livenessProbe.successThreshold` | The liveness probe success threshold | `1` |
+| `webhook.livenessProbe.timeoutSeconds` | The liveness probe timeout (in seconds) | `1` |
+| `webhook.readinessProbe.failureThreshold` | The readiness probe failure threshold | `3` |
+| `webhook.readinessProbe.initialDelaySeconds` | The readiness probe initial delay (in seconds) | `5` |
+| `webhook.readinessProbe.periodSeconds` | The readiness probe period (in seconds) | `5` |
+| `webhook.readinessProbe.successThreshold` | The readiness probe success threshold | `1` |
+| `webhook.readinessProbe.timeoutSeconds` | The readiness probe timeout (in seconds) | `1` |
+| `cainjector.enabled` | Toggles whether the cainjector component should be installed (required for the webhook component to work) | `true` |
+| `cainjector.replicaCount` | Number of cert-manager cainjector replicas | `1` |
+| `cainjector.podAnnotations` | Annotations to add to the cainjector pods | `{}` |
+| `cainjector.podLabels` | Labels to add to the cert-manager cainjector pod | `{}` |
+| `cainjector.deploymentAnnotations` | Annotations to add to the cainjector deployment | `{}` |
+| `cainjector.podDisruptionBudget.enabled` | Adds a PodDisruptionBudget for the cert-manager deployment | `false` |
+| `cainjector.podDisruptionBudget.minAvailable` | Configures the minimum available pods for voluntary disruptions. Cannot used if `maxUnavailable` is set. | `1` |
+| `cainjector.podDisruptionBudget.maxUnavailable` | Configures the maximum unavailable pods for voluntary disruptions. Cannot used if `minAvailable` is set. | |
+| `cainjector.extraArgs` | Optional flags for cert-manager cainjector component | `[]` |
+| `cainjector.serviceAccount.create` | If `true`, create a new service account for the cainjector component | `true` |
+| `cainjector.serviceAccount.name` | Service account for the cainjector component to be used. If not set and `cainjector.serviceAccount.create` is `true`, a name is generated using the fullname template | |
+| `cainjector.serviceAccount.annotations` | Annotations to add to the service account for the cainjector component | |
+| `cainjector.serviceAccount.automountServiceAccountToken` | Automount API credentials for the cainjector Service Account | `true` |
+| `cainjector.resources` | CPU/memory resource requests/limits for the cainjector pods | `{}` |
+| `cainjector.nodeSelector` | Node labels for cainjector pod assignment | `{}` |
+| `cainjector.affinity` | Node affinity for cainjector pod assignment | `{}` |
+| `cainjector.tolerations` | Node tolerations for cainjector pod assignment | `[]` |
+| `cainjector.topologySpreadConstraints` | Topology spread constraints for cainjector pod assignment | `[]` |
+| `cainjector.image.repository` | cainjector image repository | `quay.io/jetstack/cert-manager-cainjector` |
+| `cainjector.image.tag` | cainjector image tag | `v1.12.2` |
+| `cainjector.image.pullPolicy` | cainjector image pull policy | `IfNotPresent` |
+| `cainjector.securityContext` | Security context for cainjector pod assignment | refer to [Default Security Contexts](#default-security-contexts) |
+| `cainjector.containerSecurityContext` | Security context to be set on cainjector component container | refer to [Default Security Contexts](#default-security-contexts) |
+| `acmesolver.image.repository` | acmesolver image repository | `quay.io/jetstack/cert-manager-acmesolver` |
+| `acmesolver.image.tag` | acmesolver image tag | `v1.12.2` |
+| `acmesolver.image.pullPolicy` | acmesolver image pull policy | `IfNotPresent` |
+| `startupapicheck.enabled` | Toggles whether the startupapicheck Job should be installed | `true` |
+| `startupapicheck.securityContext` | Security context for startupapicheck pod assignment | refer to [Default Security Contexts](#default-security-contexts) |
+| `startupapicheck.containerSecurityContext` | Security context to be set on startupapicheck component container | refer to [Default Security Contexts](#default-security-contexts) |
+| `startupapicheck.timeout` | Timeout for 'kubectl check api' command | `1m` |
+| `startupapicheck.backoffLimit` | Job backoffLimit | `4` |
+| `startupapicheck.jobAnnotations` | Optional additional annotations to add to the startupapicheck Job | `{}` |
+| `startupapicheck.podAnnotations` | Optional additional annotations to add to the startupapicheck Pods | `{}` |
+| `startupapicheck.extraArgs` | Optional additional arguments for startupapicheck | `[]` |
+| `startupapicheck.resources` | CPU/memory resource requests/limits for the startupapicheck pod | `{}` |
+| `startupapicheck.nodeSelector` | Node labels for startupapicheck pod assignment | `{}` |
+| `startupapicheck.affinity` | Node affinity for startupapicheck pod assignment | `{}` |
+| `startupapicheck.tolerations` | Node tolerations for startupapicheck pod assignment | `[]` |
+| `startupapicheck.podLabels` | Optional additional labels to add to the startupapicheck Pods | `{}` |
+| `startupapicheck.image.repository` | startupapicheck image repository | `quay.io/jetstack/cert-manager-ctl` |
+| `startupapicheck.image.tag` | startupapicheck image tag | `v1.12.2` |
+| `startupapicheck.image.pullPolicy` | startupapicheck image pull policy | `IfNotPresent` |
+| `startupapicheck.serviceAccount.create` | If `true`, create a new service account for the startupapicheck component | `true` |
+| `startupapicheck.serviceAccount.name` | Service account for the startupapicheck component to be used. If not set and `startupapicheck.serviceAccount.create` is `true`, a name is generated using the fullname template | |
+| `startupapicheck.serviceAccount.annotations` | Annotations to add to the service account for the startupapicheck component | |
+| `startupapicheck.serviceAccount.automountServiceAccountToken` | Automount API credentials for the startupapicheck Service Account | `true` |
+| `maxConcurrentChallenges` | The maximum number of challenges that can be scheduled as 'processing' at once | `60` |
+
+### Default Security Contexts
+
+The default pod-level and container-level security contexts, below, adhere to the [restricted](https://kubernetes.io/docs/concepts/security/pod-security-standards/#restricted) Pod Security Standards policies.
+
+Default pod-level securityContext:
+```yaml
+runAsNonRoot: true
+seccompProfile:
+ type: RuntimeDefault
+```
+
+Default containerSecurityContext:
+```yaml
+allowPrivilegeEscalation: false
+capabilities:
+ drop:
+ - ALL
+```
+
+### Assigning Values
+
+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,
+
+```console
+$ helm install my-release -f values.yaml .
+```
+> **Tip**: You can use the default [values.yaml](https://github.com/cert-manager/cert-manager/blob/master/deploy/charts/cert-manager/values.yaml)
+
+## Contributing
+
+This chart is maintained at [github.com/cert-manager/cert-manager](https://github.com/cert-manager/cert-manager/tree/master/deploy/charts/cert-manager).