What a staging task looks like

staging_task.json

{
  "rootfs": "preloaded:rabbit_hole",
  "env": [
    {
      "name": "LANG",
      "value": "en_US.UTF-8"
    }
  ],
  "action": {
    "timeout": {
      "action": {
        "serial": {
          "actions": [
            {
              "download": {
                "artifact": "app package",
                "from": "http://example-uri.com/bunny",
                "to": "/tmp/app",
                "cache_key": "",
                "user": "vcap"
              }
            },
            {
              "emit_progress": {
                "action": {
                  "parallel": {
                    "actions": [
                      {
                        "emit_progress": {
                          "action": {
                            "download": {
                              "from": "http://file-server.com/v1/static/rabbit-hole-compiler",
                              "to": "/tmp/lifecycle",
                              "cache_key": "buildpack-rabbit_hole-lifecycle",
                              "user": "vcap"
                            }
                          },
                          "start_message": "",
                          "success_message": "",
                          "failure_message_prefix": "Failed to set up staging environment"
                        }
                      },
                      {
                        "download": {
                          "artifact": "zfirst",
                          "from": "first-buildpack-url",
                          "to": "/tmp/buildpacks/0fe7d5fc3f73b0ab8682a664da513fbd",
                          "cache_key": "zfirst-buildpack",
                          "user": "vcap"
                        }
                      },
                      {
                        "download": {
                          "artifact": "asecond",
                          "from": "second-buildpack-url",
                          "to": "/tmp/buildpacks/58015c32d26f0ad3418f87dd9bf47797",
                          "cache_key": "asecond-buildpack",
                          "user": "vcap"
                        }
                      },
                      {
                        "try": {
                          "action": {
                            "download": {
                              "artifact": "build artifacts cache",
                              "from": "http://example-uri.com/bunny-droppings",
                              "to": "/tmp/cache",
                              "cache_key": "",
                              "user": "vcap"
                            }
                          }
                        }
                      }
                    ]
                  }
                },
                "start_message": "No buildpack specified; fetching standard buildpacks to detect and build your application.\nDownloading buildpacks (zfirst, asecond), build artifacts cache...",
                "success_message": "Downloaded buildpacks",
                "failure_message_prefix": "Downloading buildpacks failed"
              }
            },
            {
              "emit_progress": {
                "action": {
                  "run": {
                    "path": "/tmp/lifecycle/builder",
                    "args": [
                      "-buildArtifactsCacheDir=/tmp/cache",
                      "-buildDir=/tmp/app",
                      "-buildpackOrder=zfirst-buildpack,asecond-buildpack",
                      "-buildpacksDir=/tmp/buildpacks",
                      "-outputBuildArtifactsCache=/tmp/output-cache",
                      "-outputDroplet=/tmp/droplet",
                      "-outputMetadata=/tmp/result.json",
                      "-skipCertVerify=false",
                      "-skipDetect=false"
                    ],
                    "env": [
                      {
                        "name": "VCAP_APPLICATION",
                        "value": "foo"
                      },
                      {
                        "name": "VCAP_SERVICES",
                        "value": "bar"
                      }
                    ],
                    "resource_limits": {
                      "nofile": 512
                    },
                    "user": "vcap"
                  }
                },
                "start_message": "Staging...",
                "success_message": "Staging complete",
                "failure_message_prefix": "Staging failed"
              }
            },
            {
              "emit_progress": {
                "action": {
                  "parallel": {
                    "actions": [
                      {
                        "upload": {
                          "artifact": "droplet",
                          "from": "/tmp/droplet",
                          "to": "http://cc-uploader.com/v1/droplet/bunny?cc-droplet-upload-uri=http%3A%2F%2Fexample-uri.com%2Fdroplet-upload&timeout=900",
                          "user": "vcap"
                        }
                      },
                      {
                        "try": {
                          "action": {
                            "upload": {
                              "artifact": "build artifacts cache",
                              "from": "/tmp/output-cache",
                              "to": "http://cc-uploader.com/v1/build_artifacts/bunny?cc-build-artifacts-upload-uri=http%3A%2F%2Fexample-uri.com%2Fbunny-uppings&timeout=900",
                              "user": "vcap"
                            }
                          }
                        }
                      }
                    ]
                  }
                },
                "start_message": "Uploading droplet, build artifacts cache...",
                "success_message": "Uploading complete",
                "failure_message_prefix": "Uploading failed"
              }
            }
          ]
        }
      },
      "timeout": 900000000000
    }
  },
  "disk_mb": 3072,
  "memory_mb": 2048,
  "cpu_weight": 50,
  "privileged": true,
  "log_source": "STG",
  "log_guid": "bunny",
  "metrics_guid": "",
  "result_file": "/tmp/result.json",
  "completion_callback_url": "http://the-stager.example.com/v1/staging/a-staging-guid/completed",
  "annotation": "{\"lifecycle\":\"buildpack\"}",
  "egress_rules": [
    {
      "protocol": "TCP",
      "destinations": [
        "0.0.0.0/0"
      ],
      "port_range": {
        "start": 80,
        "end": 443
      },
      "log": false
    }
  ]
}