Vault Secrets Operator helm chart

The chart is customizable using Helm configuration values.

Top-Level Stanzas

Use these links to navigate to a particular top-level stanza.

All Values

controller

controller - Top level configuration for the vault secrets operator deployment. This consists of a controller and a kube rbac proxy container.
- replicas (integer: 1) - Set the number of replicas for the operator.
- hostAliases (array<map>) - Host Aliases settings for vault-secrets-operator pod. The value is an array of PodSpec HostAlias maps. ref: https://kubernetes.io/docs/tasks/network/customize-hosts-file-for-pods/ Example: hostAliases:
  - ip: 192.168.1.100 hostnames:
    - vault.example.com
- nodeSelector (map) - nodeSelector labels for vault-secrets-operator pod assignment. ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector Example: nodeSelector: beta.kubernetes.io/arch: amd64
- tolerations (array<map>) - Toleration Settings for vault-secrets-operator pod. The value is an array of PodSpec Toleration maps. ref: https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/ Example: tolerations:
  - key: "key1" operator: "Equal" value: "value1" effect: "NoSchedule"
- affinity - Affinity settings for vault-secrets-operator pod. The value is a map of PodSpec Affinity maps. ref: https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity Example: affinity: nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms:
```
  - matchExpressions:
    - key: topology.kubernetes.io/zone
      operator: In
      values:
      - antarctica-east1
      - antarctica-west1
```
- kubeRbacProxy - Settings related to the kubeRbacProxy container. This container is an HTTP proxy for the controller manager which performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
  - image - Image sets the repo and tag of the kube-rbac-proxy image to use for the controller.
    - repository (string: gcr.io/kubebuilder/kube-rbac-proxy)
    - tag (string: v0.15.0)
  - resources (map) - Configures the default resources for the kube rbac proxy container. For more information on configuring resources, see the K8s documentation: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
    - limits
      - cpu (string: 500m)
      - memory (string: 128Mi)
    - requests
      - cpu (string: 5m)
      - memory (string: 64Mi)
- imagePullSecrets (array<map>) - Image pull secret to use for private container registry authentication which will be applied to the controllers service account. Alternatively, the value may be specified as an array of strings. Example:
```
imagePullSecrets:
  - name: pull-secret-name-1
  - name: pull-secret-name-2
```
  Refer to https://kubernetes.io/docs/concepts/containers/images/#using-a-private-registry.
- extraLabels - Extra labels to attach to the deployment. This should be formatted as a YAML object (map)
- annotations - This value defines additional annotations for the deployment. This should be formatted as a YAML object (map)
- manager - Settings related to the vault-secrets-operator container.
  - image - Image sets the repo and tag of the vault-secrets-operator image to use for the controller.
    - repository (string: hashicorp/vault-secrets-operator)
    - tag (string: 0.4.0)
  - clientCache - Configures the client cache which is used by the controller to cache (and potentially persist) vault tokens that are the result of using the VaultAuthMethod. This enables re-use of Vault Tokens throughout their TTLs as well as the ability to renew. Persistence is only useful in the context of Dynamic Secrets, so "none" is an okay default.
    - persistenceModel (string: "") - Defines the -client-cache-persistence-model which caches+persists vault tokens. Valid values are: "none" - in-memory client cache is used, no tokens are persisted. "direct-unencrypted" - in-memory client cache is persisted, unencrypted. This is NOT recommended for any production workload. "direct-encrypted" - in-memory client cache is persisted encrypted using the Vault Transit engine. Note: It is strongly encouraged to not use the setting of "direct-unencrypted" in production due to the potential of vault tokens being leaked as they would then be stored in clear text.
      default: "none"
    - cacheSize (integer: "") - Defines the size of the in-memory LRU cache in entries, that is used by the client cache controller. Larger numbers will increase memory usage by the controller, lower numbers will cause more frequent evictions of the client cache which can result in additional Vault client counts.
      default: 10000
    - storageEncryption - StorageEncryption provides the necessary configuration to encrypt the client storage cache within Kubernetes objects using (required) Vault Transit Engine. This should only be configured when client cache persistence with encryption is enabled and will deploy an additional VaultAuthMethod to be used by the Vault Transit Engine. E.g. when controller.manager.clientCache.persistenceModel=direct-encrypted Supported Vault authentication methods for the Transit Auth method are: jwt, appRole, aws, and kubernetes. Typically, there should only ever be one VaultAuth configured with StorageEncryption in the Cluster.
      - enabled (boolean: false) - toggles the deployment of the Transit VaultAuthMethod CR.
      - vaultConnectionRef (string: default) - Vault Connection Ref to be used by the Transit VaultAuthMethod. Default setting will use the default VaultConnectionRef, which must also be configured.
      - keyName (string: "") - KeyName to use for encrypt/decrypt operations via Vault Transit.
      - transitMount (string: "") - Mount path for the Transit VaultAuthMethod.
      - namespace (string: "") - Vault namespace for the Transit VaultAuthMethod CR.
      - method (string: kubernetes) - Vault Auth method to be used with the Transit VaultAuthMethod CR.
      - mount (string: kubernetes) - Mount path for the Transit VaultAuthMethod.
      - kubernetes - Vault Kubernetes auth method specific configuration
        role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if defaultAuthMethod.enabled=true
        serviceAccount (string: "") - Kubernetes ServiceAccount associated with the Transit Vault Auth Role Defaults to using the Operator's service-account.
        tokenAudiences (array<string>: []) - Token Audience should match the audience of the vault kubernetes auth role.
      - jwt - Vault JWT auth method specific configuration
        role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if using JWT for the Transit VaultAuthMethod.
        secretRef (string: "") - One of the following is required prior to deploying the helm chart
        K8s secret that contains the JWT
        K8s service account if a service account JWT is used as a Vault JWT auth token and needs generating by VSO.
        Name of Kubernetes Secret that has the Vault JWT auth token. The Kubernetes Secret must contain a key named jwt which references the JWT token, and must exist in the namespace of any consuming VaultSecret CR. This is a required field if a JWT token is provided.
        serviceAccount (string: default) - Kubernetes ServiceAccount to generate a service account JWT
        tokenAudiences (array<string>: []) - Token Audience should match the bound_audiences or the aud list in bound_claims if applicable of the Vault JWT auth role.
      - appRole - AppRole auth method specific configuration
        roleId (string: "") - AppRole Role's RoleID to use for authenticating to Vault. This is a required field when using appRole and must be setup in Vault prior to deploying the helm chart.
        secretRef (string: "") - Name of Kubernetes Secret that has the AppRole Role's SecretID used to authenticate with Vault. The Kubernetes Secret must contain a key named id which references the AppRole Role's SecretID, and must exist in the namespace of any consuming VaultSecret CR. This is a required field when using appRole and must be setup in Vault prior to deploying the helm chart.
      - aws - AWS auth method specific configuration
        role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if using the AWS for the Transit auth method.
        region (string: "") - AWS region to use for signing the authentication request Optional, but most commonly will be the EKS cluster region.
        headerValue (string: "") - Vault header value to include in the STS signing request
        sessionName (string: "") - The role session name to use when creating a WebIdentity provider
        stsEndpoint (string: "") - The STS endpoint to use; if not set will use the default
        iamEndpoint (string: "") - The IAM endpoint to use; if not set will use the default
        secretRef (string: "") - The name of a Kubernetes Secret which holds credentials for AWS. Supported keys include access_key_id, secret_access_key, session_token
        irsaServiceAccount (string: "") - Name of a Kubernetes service account that is configured with IAM Roles for Service Accounts (IRSA). Should be annotated with "eks.amazonaws.com/role-arn".
      - gcp
        role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if using GCP for the Transit auth method.
        workloadIdentityServiceAccount (string: "") - Name of a Kubernetes service account that is configured for workload identity in GKE.
        region (string: "") - GCP Region of the GKE cluster's identity provider. Defaults to the region returned from the operator pod's local metadata server if unspecified.
        clusterName (string: "") - GKE cluster name. Defaults to the cluster-name returned from the operator pod's local metadata server if unspecified.
        projectID (string: "") - GCP project id. Defaults to the project-id returned from the operator pod's local metadata server if unspecified.
      - params (map) - Params to use when authenticating to Vault using this auth method. params: param-something1: "foo"
      - headers ( map: "") - Headers to be included in all Vault requests. headers: X-vault-something1: "foo"
  - maxConcurrentReconciles (integer: "") - Defines the maximum number of concurrent reconciles by the controller. NOTE: Currently this is only used by the reconciliation logic of dynamic secrets.
    default: 100
  - extraEnv (array<map>) - Defines additional environment variables to be added to the vault-secrets-opearator manager container. extraEnv:
    - name: HTTP_PROXY value: http://proxy.example.com
  - extraArgs (array: []) - Defines additional commandline arguments to be passed to the vault-secrets-operator manager container. extraArgs:
    - -zap-log-level=5
  - resources (map) - Configures the default resources for the vault-secrets-operator container. For more information on configuring resources, see the K8s documentation: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
    - limits
      - cpu (string: 500m)
      - memory (string: 128Mi)
    - requests
      - cpu (string: 10m)
      - memory (string: 64Mi)
- podSecurityContext - Configures the Pod Security Context https://kubernetes.io/docs/tasks/configure-pod-container/security-context
  - runAsNonRoot (boolean: true)
- securityContext - Configures the Container Security Context https://kubernetes.io/docs/tasks/configure-pod-container/security-context
  - allowPrivilegeEscalation (boolean: false)
- controllerConfigMapYaml (map) - Sets the configuration settings used by the controller. Any custom changes will be reflected in the data field of the configmap. For more information on configuring resources, see the K8s documentation: https://kubernetes.io/docs/concepts/configuration/configmap/
  - health
    - healthProbeBindAddress (string: :8081)
  - leaderElection
    - leaderElect (boolean: true)
    - resourceName (string: b0d477c0.hashicorp.com)
  - metrics
    - bindAddress (string: 127.0.0.1:8080)
  - webhook
    - port (integer: 9443)
- kubernetesClusterDomain (string: cluster.local) - Configures the environment variable KUBERNETES_CLUSTER_DOMAIN used by KubeDNS.
- terminationGracePeriodSeconds (integer: 120) - Duration in seconds the pod needs to terminate gracefully. See: https://kubernetes.io/docs/concepts/containers/container-lifecycle-hooks/
- preDeleteHookTimeoutSeconds (integer: 120) - Timeout in seconds for the pre-delete hook

metricsService

metricsService (map) - Configure the metrics service ports used by the metrics service. Set the configuration fo the metricsService port.
- ports (map) - Set the port settings for the metrics service. For more information on configuring resources, see the K8s documentation: https://kubernetes.io/docs/concepts/services-networking/service/
- name (string: https)
- port (integer: 8443)
- protocol (string: TCP)
- targetPort (string: https)
- type (string: ClusterIP)

defaultVaultConnection

defaultVaultConnection - Configures the default VaultConnection CR which will be used by resources if they do not specify a VaultConnection reference. The name is 'default' and will always be installed in the same namespace as the operator. NOTE:
- It is strongly recommended to deploy the vault secrets operator in a secure Vault environment which includes a configuration utilizing TLS and installing Vault into its own restricted namespace.
- enabled (boolean: false) - toggles the deployment of the VaultAuthMethod CR
- address (string: "") - Address of the Vault Server Example: http://vault.default.svc.cluster.local:8200
- caCertSecret (string: "") - CACertSecret is the name of a Kubernetes secret containing the trusted PEM encoded CA certificate chain as ca.crt. Note: This secret must exist prior to deploying the CR.
- tlsServerName (string: "") - TLSServerName to use as the SNI host for TLS connections.
- skipTLSVerify (boolean: false) - SkipTLSVerify for TLS connections.
- headers (map) - Headers to be included in all Vault requests. headers: X-vault-something: "foo"

defaultAuthMethod

defaultAuthMethod - Configures and deploys the default VaultAuthMethod CR which will be used by resources if they do not specify a VaultAuthMethod reference. The name is 'default' and will always be installed in the same namespace as the operator. NOTE:
- It is strongly recommended to deploy the vault secrets operator in a secure Vault environment which includes a configuration utilizing TLS and installing Vault into its own restricted namespace.
- enabled (boolean: false) - toggles the deployment of the VaultAuthMethod CR
- namespace (string: "") - Vault namespace for the VaultAuthMethod CR
- method (string: kubernetes) - Vault Auth method to be used with the VaultAuthMethod CR
- mount (string: kubernetes) - Mount path for the Vault Auth Method.
- kubernetes - Vault Kubernetes auth method specific configuration
  - role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if defaultAuthMethod.enabled=true
  - serviceAccount (string: default) - Kubernetes ServiceAccount associated with the default Vault Auth Role
  - tokenAudiences (array<string>: []) - Token Audience should match the audience of the vault kubernetes auth role.
- jwt - Vault JWT auth method specific configuration
  - role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if using the JWT for the default auth method.
  - secretRef (string: "") - One of the following is required prior to deploying the helm chart
    - K8s secret that contains the JWT
    - K8s service account if a service account JWT is used as a Vault JWT auth token and needs generating by VSO
    Name of Kubernetes Secret that has the Vault JWT auth token. The Kubernetes Secret must contain a key named jwt which references the JWT token, and must exist in the namespace of any consuming VaultSecret CR. This is a required field if a JWT token is provided.
  - serviceAccount (string: default) - Kubernetes ServiceAccount to generate a service account JWT
  - tokenAudiences (array<string>: []) - Token Audience should match the bound_audiences or the aud list in bound_claims if applicable of the Vault JWT auth role.
- appRole - AppRole auth method specific configuration
  - roleId (string: "") - AppRole Role's RoleID to use for authenticating to Vault. This is a required field when using appRole and must be setup in Vault prior to deploying the helm chart.
  - secretRef (string: "") - Name of Kubernetes Secret that has the AppRole Role's SecretID used to authenticate with Vault. The Kubernetes Secret must contain a key named id which references the AppRole Role's SecretID, and must exist in the namespace of any consuming VaultSecret CR. This is a required field when using appRole and must be setup in Vault prior to deploying the helm chart.
- aws - AWS auth method specific configuration
  - role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if using the AWS for the default auth method.
  - region (string: "") - AWS region to use for signing the authentication request Optional, but most commonly will be the region where the EKS cluster is running
  - headerValue (string: "") - Vault header value to include in the STS signing request
  - sessionName (string: "") - The role session name to use when creating a WebIdentity provider
  - stsEndpoint (string: "") - The STS endpoint to use; if not set will use the default
  - iamEndpoint (string: "") - The IAM endpoint to use; if not set will use the default
  - secretRef (string: "") - The name of a Kubernetes Secret which holds credentials for AWS. Supported keys include access_key_id, secret_access_key, session_token
  - irsaServiceAccount (string: "") - Name of a Kubernetes service account that is configured with IAM Roles for Service Accounts (IRSA). Should be annotated with "eks.amazonaws.com/role-arn".
- gcp
  - role (string: "") - Vault Auth Role to use This is a required field and must be setup in Vault prior to deploying the helm chart if using GCP for the Transit auth method.
  - workloadIdentityServiceAccount (string: "") - Name of a Kubernetes service account that is configured for workload identity in GKE.
  - region (string: "") - GCP Region of the GKE cluster's identity provider. Defaults to the region returned from the operator pod's local metadata server if unspecified.
  - clusterName (string: "") - GKE cluster name. Defaults to the cluster-name returned from the operator pod's local metadata server if unspecified.
  - projectID (string: "") - GCP project id. Defaults to the project-id returned from the operator pod's local metadata server if unspecified.
- params (map) - Params to use when authenticating to Vault params: param-something1: "foo"
- headers (map) - Headers to be included in all Vault requests. headers: X-vault-something1: "foo"

telemetry

telemetry - Configures a Prometheus ServiceMonitor
- serviceMonitor
  - enabled (boolean: false) - The Prometheus operator must be installed before enabling this feature, if not the chart will fail to install due to missing CustomResourceDefinitions provided by the operator.
    Instructions on how to install the Helm chart can be found here: https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack More information can be found here: https://github.com/prometheus-operator/prometheus-operator https://github.com/prometheus-operator/kube-prometheus
    Enable deployment of the Vault Secrets Operator ServiceMonitor CustomResource.
  - selectors (string: "") - Selector labels to add to the ServiceMonitor. When empty, defaults to: release: prometheus
  - scheme (string: https) - Scheme of the service Prometheus scrapes metrics from. This must match the scheme of the metrics service of VSO
  - port (string: https) - Port at which Prometheus scrapes metrics. This must match the port of the metrics service of VSO
  - path (string: /metrics) - Path at which Prometheus scrapes metrics
  - bearerTokenFile (string: /var/run/secrets/kubernetes.io/serviceaccount/token) - File Prometheus reads bearer token from for scraping metrics
  - interval (string: 30s) - Interval at which Prometheus scrapes metrics
  - scrapeTimeout (string: 10s) - Timeout for Prometheus scrapes

tests

tests - # Used by unit tests, and will not be rendered except when using helm template, this can be safely ignored.
- enabled (boolean: true)

Helm chart examples

The below config.yaml results in a single replica installation of the Vault Secrets Operator with a default vault connection and auth method custom resource deployed. It expects a local Vault installation within the kubernetes cluster accessible via http://vault.default.svc.cluster.local:8200 with TLS disabled, and a Vault Auth Method to be setup against the default ServiceAccount.

# config.yaml

defaultVaultConnection:
  enabled: true
defaultAuthMethod:
  enabled: true

Customizing the helm chart

If you need to extend the Helm chart with additional options, we recommend using a third-party tool, such as kustomize using the project repo config/ path in the vault-secrets-operator project.