# Raises an error if tls config is invalid
karma.bin-should-fail --log.format=text --log.config=false --log.level=error --config.file=karma.yaml
! stdout .
stderr 'msg="Failed to create HTTP transport for Alertmanager ''client-auth'' with URI ''https://localhost:9093'': open /xxx/xxx-ca-bundle.crt: no such file or directory"'

-- karma.yaml --
alertmanager:
  servers:
    - name: client-auth
      uri: https://localhost:9093
      timeout: 10s
      tls:
        ca: /xxx/xxx-ca-bundle.crt
        cert: /xxx/karma/client.pem
        key: /xxx/karma/client.key
