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Secret

Author: Nick Santos

Helper functions for creating Kubernetes secrets.

Functions

secret_yaml_generic

secret_yaml_generic(
    name: str,
    namespace: str = "",
    from_file: str | list[str] = None,
    secret_type: str = None,
    from_env_file: str = None
) -> Blob

Returns YAML for a generic secret.

Equivalent to kubectl create secret generic -o=yaml --dry-run=client

  • name ( str ) - Secret name.
  • namespace ( str ) - Secret namespace.
  • from_file ( str | list[str] ) – Populate secret from a file path or multiple file paths.
  • secret_type ( str ) - The type of secret to create.
  • from_env_file ( str ) – Specify the path to a file to read lines of key=val pairs to create a secret.

secret_create_generic

secret_create_generic(
    name: str,
    namespace: str = "",
    from_file: str | list[str] = None,
    secret_type: str = None,
    from_env_file: str = None
) -> None

Deploys a secret to the cluster. Equivalent to:

load('ext://secret', 'secret_yaml_generic')
k8s_yaml(secret_yaml_generic(...))

Arguments are the same as secret_yaml_generic.

secret_from_dict

secret_from_dict(
    name: str,
    namespace: str = "",
    inputs: dict[str, Any] = {}
) -> Blob

Returns YAML for a secret from a dictionary. Equivalent to kubectl create secret generic --from-literal=key=value

  • name ( str ) - Secret name.
  • namespace ( str ) - Secret namespace.
  • inputs ( dict ) - A dictionary of keys and values to use. Nesting is not supported.

secret_yaml_registry

secret_yaml_registry(
    name: str,
    namespace: str = "",
    flags_dict: dict = {}
) -> Blob

Returns YAML for a docker-registry type secret. Equivelent to kubectl create secret docker-registry.

  • name ( str ) - Secret name.
  • namespace ( str ) - Secret namespace.
  • flags_dict ( dict ) - A dictionary of keys and values to be passed to the command as flags (--key=value).

secret_yaml_tls

secret_yaml_tls(
    name: str,
    cert: str,
    key: str,
    namespace: str = ""
) -> Blob

Returns YAML for a TLS secret. Equivalent to kubectl create secret tls.

  • name ( str ) - Secret name.
  • cert ( str ) - Path to PEM encoded public key certificate.
  • key ( str ) - Path to private key associated with given certificate.
  • namespace ( str ) - Secret namespace.

secret_create_tls

secret_create_tls(
    name: str,
    cert: str,
    key: str,
    namespace: str = ""
) -> None

Deploys a TLS secret to the cluster. Equivalent to

load('ext://secret', 'secret_yaml_tls')
k8s_yaml(secret_yaml_tls(...))

Arguments are the same as secret_yaml_tls.

secret_yaml_docker_registry

secret_yaml_docker_registry(
    name: str,
    username: str,
    password: str,
    server: str = "",
    namespace: str = ""
) -> Blob

Returns YAML for a Docker Registry secret.

secret_create_docker_registry

secret_create_docker_registry(
    name: str,
    username: str,
    password: str,
    server: str = "",
    namespace: str = ""
) -> Blob

Deploys a Docker Registry secret to the cluster.

secret_yaml_docker_registry_ecr

secret_yaml_docker_registry_ecr(
    name: str,
    account_id: str = "",
    region: str = "",
    namespace: str = ""
) -> Blob

Returns YAML for an ECR Docker Registry secret.

Auto-detects the default AWS account and region when not specified.

secret_create_docker_registry_ecr

secret_create_docker_registry_ecr(
    name: str,
    account_id: str = "",
    region: str = "",
    namespace: str = ""
) -> Blob

Deploys an ECR Docker Registry secret to the cluster.

Auto-detects the default AWS account and region when not specified.

Example Usage

For a Postgres password:

load('ext://secret', 'secret_create_generic')
secret_create_generic('pgpass', from_file='.pgpass=./.pgpass')

For Google Cloud Platform Key:

load('ext://secret', 'secret_create_generic')
secret_create_generic('gcp-key', from_file='key.json=./gcp-creds.json')

From a dict:

load('ext://secret', 'secret_from_dict')
k8s_yaml(secret_from_dict("secrets", inputs = {
    'SOME_TOKEN' : os.getenv('SOME_TOKEN')
}))

For a docker-registry secret

k8s_yaml(registry_secret("artifact-registry", flags_dict = {
    'docker-server': 'registry_hostname',
    'docker-username': '_json_key',
    'docker-email': 'test@test.com,
    'docker-password': read_file(service-account.json')
}))

For a TLS cert:

Check out mkcert for generating HTTPS certs for localhost.

load('ext://secret', 'secret_create_tls')
cert_file='./.secrets/cert.pem'
key_file='./.secrets/key.pem'
secret_create_tls('subdomain-localhost', cert=cert_file, key=key_file)

Caveats

  • This extension doesn't do any validation to confirm that names or namespaces are valid.