Istio PeerAuthentication

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/api-evangelist/istio/blob/main/json-schema/peer-authentication.json",
  "title": "Istio PeerAuthentication",
  "description": "A PeerAuthentication defines how traffic will be tunneled (or not) to the sidecar proxy. It configures mutual TLS (mTLS) mode for workload-to-workload communication within the mesh.",
  "type": "object",
  "properties": {
    "selector": {
      "type": "object",
      "properties": {
        "matchLabels": {
          "type": "object",
          "additionalProperties": {
            "type": "string"
          },
          "description": "One or more labels that indicate a specific set of pods/VMs on which the policy should be applied."
        }
      },
      "description": "Workload selector to apply the policy to specific workloads. If not set, the policy applies to all workloads in the namespace."
    },
    "mtls": {
      "type": "object",
      "properties": {
        "mode": {
          "type": "string",
          "enum": ["UNSET", "DISABLE", "PERMISSIVE", "STRICT"],
          "description": "Defines the mTLS mode used for peer authentication. UNSET inherits from parent, DISABLE disables mTLS tunnel, PERMISSIVE accepts both plaintext and mTLS, STRICT requires mTLS."
        }
      },
      "description": "Mutual TLS settings for workload communication."
    },
    "portLevelMtls": {
      "type": "object",
      "additionalProperties": {
        "type": "object",
        "properties": {
          "mode": {
            "type": "string",
            "enum": ["UNSET", "DISABLE", "PERMISSIVE", "STRICT"],
            "description": "Defines the mTLS mode for this specific port."
          }
        }
      },
      "description": "Port-specific mutual TLS settings. Keys are port numbers."
    }
  }
}