The Infisical Operator is a collection of Kubernetes controllers that streamline how secrets are managed between Infisical and your Kubernetes cluster. It provides multiple Custom Resource Definitions (CRDs) which enable you to:

  • Sync secrets from Infisical into Kubernetes (InfisicalSecret).
  • Push new secrets from Kubernetes to Infisical (InfisicalPushSecret).
  • Manage dynamic secrets and automatically create time-bound leases (InfisicalDynamicSecret).

When these CRDs are configured, the Infisical Operator will continuously monitors for changes and performs necessary updates to keep your Kubernetes secrets up to date. It can also automatically reload dependent Deployments resources whenever relevant secrets are updated.

If you are already using the External Secrets operator, you can view the integration documentation for it here.

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Install

The operator can be install via Helm. Helm is a package manager for Kubernetes that allows you to define, install, and upgrade Kubernetes applications.

Install the latest Helm repository

helm repo add infisical-helm-charts 'https://dl.cloudsmith.io/public/infisical/helm-charts/helm/charts/' 

helm repo update

The operator can be installed either cluster-wide or restricted to a specific namespace. If you require stronger isolation and stricter access controls, a namespace-scoped installation may make more sense.

helm install --generate-name infisical-helm-charts/secrets-operator

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Custom Resource Definitions

Currently the operator supports the following CRD’s. We are constantly expanding the functionality of the operator, and this list will be updated as new CRD’s are added.

  1. InfisicalSecret: Sync secrets from Infisical to a Kubernetes secret.
  2. InfisicalPushSecret: Push secrets from a Kubernetes secret to Infisical.
  3. InfisicalDynamicSecret: Sync dynamic secrets and create leases automatically in Kubernetes.

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General Configuration

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Private/self-signed certificate

To connect to Infisical instances behind a private/self-signed certificate, you can configure the TLS settings in the CRD to point to a CA certificate stored in a Kubernetes secret resource.

---
spec:
  hostAPI: https://app.infisical.com/api
  tls:
    caRef:
      secretName: custom-ca-certificate
      secretNamespace: default
      key: ca.crt
---

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Advanced Templating

With the Infisical Secrets Operator, you can use templating to dynamically generate secrets in Kubernetes. The templating is built on top of Go templates, which is a powerful and flexible template engine built into Go.

Please be aware that trying to reference non-existing keys will result in an error. Additionally, each template field is processed individually, which means one template field cannot reference another template field.

Please note that templating is currently only supported for the InfisicalPushSecret and InfisicalSecret CRDs.

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Available helper functions

The Infisical Secrets Operator exposes a wide range of helper functions to make it easier to work with secrets in Kubernetes.

FunctionDescriptionSignature
decodeBase64ToBytesGiven a base64 encoded string, this function will decode the base64-encoded string.decodeBase64ToBytes(encodedString string) string
encodeBase64Given a string, this function will encode the string to a base64 encoded string.encodeBase64(plainString string) string
pkcs12keyExtracts all private keys from a PKCS#12 archive and encodes them in PKCS#8 PEM format.pkcs12key(input string) string
pkcs12keyPassSame as pkcs12key. Uses the provided password to decrypt the PKCS#12 archive.pkcs12keyPass(pass string, input string) string
pkcs12certExtracts all certificates from a PKCS#12 archive and orders them if possible. If disjunct or multiple leaf certs are provided they are returned as-is. Sort order: leaf / intermediate(s) / root.pkcs12cert(input string) string
pkcs12certPassSame as pkcs12cert. Uses the provided password to decrypt the PKCS#12 archive.pkcs12certPass(pass string, input string) string
pemToPkcs12Takes a PEM encoded certificate and key and creates a base64 encoded PKCS#12 archive.pemToPkcs12(cert string, key string) string
pemToPkcs12PassSame as pemToPkcs12. Uses the provided password to encrypt the PKCS#12 archive.pemToPkcs12Pass(cert string, key string, pass string) string
fullPemToPkcs12Takes a PEM encoded certificates chain and key and creates a base64 encoded PKCS#12 archive.fullPemToPkcs12(cert string, key string) string
fullPemToPkcs12PassSame as fullPemToPkcs12. Uses the provided password to encrypt the PKCS#12 archive.fullPemToPkcs12Pass(cert string, key string, pass string) string
filterPEMFilters PEM blocks with a specific type from a list of PEM blocks..filterPEM(pemType string, input string) string
filterCertChainFilters PEM block(s) with a specific certificate type (leaf, intermediate or root) from a certificate chain of PEM blocks (PEM blocks with type CERTIFICATE).filterCertChain(certType string, input string) string
jwkPublicKeyPemTakes an json-serialized JWK and returns an PEM block of type PUBLIC KEY that contains the public key. See here for details.jwkPublicKeyPem(jwkjson string) string
jwkPrivateKeyPemTakes an json-serialized JWK and returns an PEM block of type PRIVATE KEY that contains the private key. See here for details.jwkPrivateKeyPem(jwkjson string) string
toYamlTakes an interface, marshals it to yaml. It returns a string, even on marshal error (empty string).toYaml(v any) string
fromYamlFunction converts a YAML document into a map[string]any.fromYaml(str string) map[string]any

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Sprig functions

The Infisical Secrets Operator integrates with the Sprig library to provide additional helper functions.

We’ve removed expandEnv and env from the supported functions for security reasons.

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Global configuration

To configure global settings that will apply to all instances of InfisicalSecret, you can define these configurations in a Kubernetes ConfigMap. For example, you can configure all InfisicalSecret instances to fetch secrets from a single backend API without specifying the hostAPI parameter for each instance.

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Available global properties

PropertyDescriptionDefault value
hostAPIIf hostAPI in InfisicalSecret instance is left empty, this value will be usedhttps://app.infisical.com/api

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Applying global configurations

All global configurations must reside in a Kubernetes ConfigMap named infisical-config in the namespace infisical-operator-system. To apply global configuration to the operator, copy the following yaml into infisical-config.yaml file.

infisical-config.yaml
apiVersion: v1
kind: Namespace
metadata:
  name: infisical-operator-system
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: infisical-config
  namespace: infisical-operator-system
data:
  hostAPI: https://example.com/api # <-- global hostAPI

Then apply this change via kubectl by running the following

kubectl apply -f infisical-config.yaml

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Troubleshoot operator

If the operator is unable to fetch secrets from the API, it will not affect the managed Kubernetes secret. It will continue attempting to reconnect to the API indefinitely. The InfisicalSecret resource uses the status.conditions field to report its current state and any errors encountered.

$ kubectl get infisicalSecrets
NAME                     AGE
infisicalsecret-sample   12s

$ kubectl describe infisicalSecret infisicalsecret-sample
...
Spec:
...
Status:
  Conditions:
    Last Transition Time:  2022-12-18T04:29:09Z
    Message:               Infisical controller has located the Infisical token in provided Kubernetes secret
    Reason:                OK
    Status:                True
    Type:                  secrets.infisical.com/LoadedInfisicalToken
    Last Transition Time:  2022-12-18T04:29:10Z
    Message:               Failed to update secret because: 400 Bad Request
    Reason:                Error
    Status:                False
    Type:                  secrets.infisical.com/ReadyToSyncSecrets
Events:                    <none>

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Uninstall Operator

The managed secret created by the operator will not be deleted when the operator is uninstalled.

Install Infisical Helm repository

helm uninstall <release name>