anchor.diff:  And verify that the agent has registered successfully in the logs:
   
   ```shell
  -$ kubectl logs buildkite-agent-3220167863-dtzcf
  +$ kubectl logs buildkite-agent-3220167863-dtzcf buildkite
   
     _           _ _     _ _    _ _                                _
    | |         (_) |   | | |  (_) |                              | |
  
positive.code:   containers:
    - ...
      volumeMounts:
      - name: ssh-keys
        mountPath: /root/.ssh/id_rsa
        subPath: id_rsa
      - name: ssh-keys
        mountPath: /root/.ssh/id_rsa.pub
        subPath: id_rsa.pub
      ...
    volumes:
    - name: ssh-keys
      secret:
        secretName: buildkite-agent-ssh
        defaultMode: 0400
    ...
  ```
  
  If you git clone over https (for example using a [GitHub API token](https://help.github.com/articles/creating-a-personal-access-token-for-the-command-line/)) you could mount a [git-credentials file](https://git-scm.com/docs/git-credential-store#_storage_format) instead:
  
negative.code:     metadata:
        labels:
          app: buildkite-agent
        annotations:
          "cluster-autoscaler.kubernetes.io/safe-to-evict": "true"
      spec:
        containers:
          - name: buildkite
            image: "buildkite/agent:3.29.0"
            env:
              - name: DOCKER_HOST
                value: tcp://localhost:2375
              - name: BUILDKITE_AGENT_TOKEN
                valueFrom: {secretKeyRef: {name: buildkite-agent, key: token}}
            volumeMounts:
              - name: buildkite-builds
                mountPath: /buildkite/builds
          - name: dind-daemon
            image: docker:20.10.6-dind
            command: ["dockerd", "--host=unix:///var/run/docker.sock", "--host=tcp://0.0.0.0:2375"]
            securityContext:
                privileged: true
            volumeMounts:
              - name: buildkite-builds
                mountPath: /buildkite/builds
              - name: docker-graph-storage
                mountPath: /var/lib/docker
        terminationGracePeriodSeconds: 900
        volumes:
          - name: docker-graph-storage
            emptyDir: {}
          - name: buildkite-builds
            emptyDir: {}
  
  # (press Control-D)
  
  deployment "buildkite-agent" created
  