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mutual_tls

Usage

Some charms require knowledge of other charms' public TLS certificates for trusted communication with them. This relation interface describes the expected behaviour of any charm claiming to be able to authenticate (or be authenticated) through TLS communication.

Warning: This relation interface should not be used by charms requiring certificates for themselves. Please use the tls-certificates interface for this usecase.

Direction

flowchart TD
    Provider -- certificate, ca, chain --> Requirer
Loading

As with all Juju relations, the mutual_tls interface consists of two parties: a Provider and a Requirer.

Behavior

Both the Requirer and the Provider need to adhere to criteria to be considered compatible with the interface.

Provider

  • Is expected to provide its own public certificate and/or its CA certificate and/or its chain.

Requirer

  • Is expected to use the provider's certificate and/or CA certificate and/or chain to authenticate the provider when communicating with it.

Relation Data

Provider

[JSON Schema]

The provider writes its certficate, CA certificate and CA chain in its unit relation data.

Example

relation-info:
  - endpoint: mutual_tls
    related-endpoint: mutual_tls
    unit-data:
      certificate: "-----BEGIN CERTIFICATE-----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\n49g5yWQR2jilYYM3j9BHDuB+Rs+YS5BCep1JnQ==\n-----END CERTIFICATE-----\n"
      ca: "-----BEGIN CERTIFICATE-----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\nRtMI6iTjzSj/UV8DiAx0yeM+bKoy4jGeXmaL3g==\n-----END CERTIFICATE-----\n"
      chain: [
        "-----BEGIN CERTIFICATE-----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\n49g5yWQR2jilYYM3j9BHDuB+Rs+YS5BCep1JnQ==\n-----END CERTIFICATE-----\n",
        "-----BEGIN CERTIFICATE-----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\nRtMI6iTjzSj/UV8DiAx0yeM+bKoy4jGeXmaL3g==\n-----END CERTIFICATE-----\n"
      ]