application-tc.yaml

spring.temporal:
  namespace: <namespace_id> # https://docs.temporal.io/cloud/#temporal-cloud-namespace-id
  connection:
    target: <namespace_id>.tmprl.cloud:7233
    mtls:
      key-file: /path/to/key.key
      cert-chain-file: /path/to/cert.pem

# more configuration options https://github.com/temporalio/sdk-java/tree/master/temporal-spring-boot-autoconfigure-alpha#mtls