【Jenkins】 API を使ってジョブの情報を取得しよう

CI/CD
https://jenkins.io/

はじめに

こんにちはSREエンジニアのMakiです。
この記事ではJenkinsで使えるAPIについて紹介します。
Jenkinsのジョブの実行結果や設定の情報をAPIを使って取得したいということってありませんか?
APIを使ってどんなことができるのかを紹介していきたいと思います。

Jenkins API について

JenkinsのAPIは何種類存在しているのか?
3種類のパターンはあるようです。

  1. Remote access API
  2. Pipeline REST API
  3. Blue Ocean REST API

では具体的にどんな情報が取れるのか紹介していきます。

コードが長い部分は折り畳みになっています。
Jsonをクリックで展開します と書かれた部分を押すとコードを表示できます。

Remote access API

https://wiki.jenkins.io/display/JA/Remote+access+API

もっとも初期からあると思われるAPIです。

具体的には次のようなことができます。

  1. プログラムでJenkinsから情報を取得する
  2. 新しいビルドを起動する
  3. ジョブの作成、コピー
    といったことができます。

使い方としてはURLの後ろに /api/json とつければ 色々情報が取れますというもの。

フォルダの情報取得

以下のページからdecrative-pipelineという名称のフォルダより情報を取得してみます。
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/

APIで情報を取得します。
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/api/json

見やすいように整形したものがこちらです。

Jsonをクリックで展開します
{ 
   "_class":"com.cloudbees.hudson.plugins.folder.Folder",
   "actions":[ 
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 
         "_class":"com.cloudbees.plugins.credentials.ViewCredentialsAction"
      }
   ],
   "description":"repository: https://github.com/sakamaki-y123/jenkins-continuous-delivery",
   "displayName":"decrative-pipeline",
   "displayNameOrNull":null,
   "fullDisplayName":"decrative-pipeline",
   "fullName":"decrative-pipeline",
   "name":"decrative-pipeline",
   "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/",
   "healthReport":[ 
      { 
         "description":"Worst health: decrative-pipeline » 07_read_json: Build stability: 3 out of the last 5 builds failed.",
         "iconClassName":"icon-health-20to39",
         "iconUrl":"health-20to39.png",
         "score":40
      }
   ],
   "jobs":[ 
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"01_hello_world",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/01_hello_world/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"02_use_sh_step",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/02_use_sh_step/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"03_write_file",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"04_archive_artifacts",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/04_archive_artifacts/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"05_clean_workspace",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/05_clean_workspace/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"06_copy_artifacts",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/06_copy_artifacts/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"07_read_json",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/07_read_json/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"08_parallel_step",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/08_parallel_step/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"09_agent_docker",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/09_agent_docker/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"10_use_multiple_docker",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/10_use_multiple_docker/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"11_read_and_write_yaml",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/11_read_and_write_yaml/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"12_input_request",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/12_input_request/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"13_conditional_run_stage",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/13_conditional_run_stage/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"14_run_ansible",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/14_run_ansible/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"15_use_shared_library",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/15_use_shared_library/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"16_use_global_variables",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/16_use_global_variables/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"17_nested_stage",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/17_nested_stage/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"18_matrix_build",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/18_matrix_build/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"19_random_kitten_generator",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/19_random_kitten_generator/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"20_search_youtube_video",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/20_search_youtube_video/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"21_amazon_translator",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/21_amazon_translator/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"22_download_hot_bokete_images",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/22_download_hot_bokete_images/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"23_download_random_kitten_images",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/23_download_random_kitten_images/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"24_download_beautiful_landscape-video",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/24_download_beautiful_landscape-video/",
         "color":"blue"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
         "name":"25_upload_artifact_to_dropbox",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/25_upload_artifact_to_dropbox/",
         "color":"blue"
      }
   ],
   "primaryView":{ 
      "_class":"hudson.model.AllView",
      "name":"all",
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/"
   },
   "views":[ 
      { 
         "_class":"hudson.model.AllView",
         "name":"all",
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/"
      }
   ]
}

フォルダ内にあるジョブのURLや名前などが確認できてきます。

ジョブの情報取得

続いて、03_write_file のジョブの情報を取得してみます。
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/

APIで情報を取得してみます。
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/api/json

Jsonをクリックで展開します
{ 
   "_class":"org.jenkinsci.plugins.workflow.job.WorkflowJob",
   "actions":[ 
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 
         "_class":"com.cloudbees.plugins.credentials.ViewCredentialsAction"
      }
   ],
   "description":"03_write_file",
   "displayName":"03_write_file",
   "displayNameOrNull":null,
   "fullDisplayName":"decrative-pipeline » 03_write_file",
   "fullName":"decrative-pipeline/03_write_file",
   "name":"03_write_file",
   "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/",
   "buildable":true,
   "builds":[ 
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
         "number":17,
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
         "number":16,
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/16/"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
         "number":15,
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/15/"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
         "number":14,
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/14/"
      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
         "number":13,
         "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/13/"
      }
   ],
   "color":"blue",
   "firstBuild":{ 
      "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
      "number":13,
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/13/"
   },
   "healthReport":[ 
      { 
         "description":"Build stability: No recent builds failed.",
         "iconClassName":"icon-health-80plus",
         "iconUrl":"health-80plus.png",
         "score":100
      }
   ],
   "inQueue":false,
   "keepDependencies":false,
   "lastBuild":{ 
      "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
      "number":17,
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/"
   },
   "lastCompletedBuild":{ 
      "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
      "number":17,
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/"
   },
   "lastFailedBuild":null,
   "lastStableBuild":{ 
      "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
      "number":17,
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/"
   },
   "lastSuccessfulBuild":{ 
      "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
      "number":17,
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/"
   },
   "lastUnstableBuild":null,
   "lastUnsuccessfulBuild":null,
   "nextBuildNumber":18,
   "property":[ 
      { 
         "_class":"hudson.model.ParametersDefinitionProperty",
         "parameterDefinitions":[ 
            { 
               "_class":"hudson.model.TextParameterDefinition",
               "defaultParameterValue":{ 
                  "_class":"hudson.model.StringParameterValue",
                  "name":"OUTPUT_TEXT",
                  "value":""
               },
               "description":"",
               "name":"OUTPUT_TEXT",
               "type":"TextParameterDefinition"
            }
         ]
      },
      { 
         "_class":"com.coravy.hudson.plugins.github.GithubProjectProperty"
      }
   ],
   "queueItem":null,
   "concurrentBuild":true,
   "resumeBlocked":false
}

ビルドの実行履歴などの情報が取得できています。

ビルド結果の情報取得

続いて最新の実行結果に関する情報を取得してみます。このときの最新のビルド番号は17でした。
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/

APIでの取得結果はこちら
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/api/json

Jsonをクリックで展開します
{ 
   "_class":"org.jenkinsci.plugins.workflow.job.WorkflowRun",
   "actions":[ 
      { 
         "_class":"hudson.model.CauseAction",
         "causes":[ 
            { 
               "_class":"hudson.model.Cause$UpstreamCause",
               "shortDescription":"Started by upstream project \"decrative-pipeline/08_parallel_step\" build number 9",
               "upstreamBuild":9,
               "upstreamProject":"decrative-pipeline/08_parallel_step",
               "upstreamUrl":"job/decrative-pipeline/job/08_parallel_step/"
            }
         ]
      },
      { 

      },
      { 
         "_class":"hudson.model.ParametersAction",
         "parameters":[ 
            { 
               "_class":"hudson.model.TextParameterValue",
               "name":"OUTPUT_TEXT",
               "value":"hoge hoge"
            }
         ]
      },
      { 
         "_class":"hudson.plugins.git.util.BuildData",
         "buildsByBranchName":{ 
            "refs/remotes/origin/master":{ 
               "_class":"hudson.plugins.git.util.Build",
               "buildNumber":17,
               "buildResult":null,
               "marked":{ 
                  "SHA1":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
                  "branch":[ 
                     { 
                        "SHA1":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
                        "name":"refs/remotes/origin/master"
                     }
                  ]
               },
               "revision":{ 
                  "SHA1":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
                  "branch":[ 
                     { 
                        "SHA1":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
                        "name":"refs/remotes/origin/master"
                     }
                  ]
               }
            }
         },
         "lastBuiltRevision":{ 
            "SHA1":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
            "branch":[ 
               { 
                  "SHA1":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
                  "name":"refs/remotes/origin/master"
               }
            ]
         },
         "remoteUrls":[ 
            "https://github.com/sakamaki-y123/jenkins-continuous-delivery.git"
         ],
         "scmName":""
      },
      { 
         "_class":"hudson.plugins.git.GitTagAction"
      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.cps.EnvActionImpl"
      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 

      },
      { 
         "_class":"org.jenkinsci.plugins.pipeline.modeldefinition.actions.RestartDeclarativePipelineAction"
      },
      { 

      },
      { 
         "_class":"org.jenkinsci.plugins.workflow.job.views.FlowGraphAction"
      },
      { 

      },
      { 

      },
      { 

      }
   ],
   "artifacts":[ 

   ],
   "building":false,
   "description":null,
   "displayName":"#17",
   "duration":47339,
   "estimatedDuration":18597,
   "executor":null,
   "fullDisplayName":"decrative-pipeline » 03_write_file #17",
   "id":"17",
   "keepLog":false,
   "number":17,
   "queueId":84830,
   "result":"SUCCESS",
   "timestamp":1567136586337,
   "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/17/",
   "changeSets":[ 
      { 
         "_class":"hudson.plugins.git.GitChangeSetList",
         "items":[ 
            { 
               "_class":"hudson.plugins.git.GitChangeSet",
               "affectedPaths":[ 
                  "pipeline/decrative-pipeline/pipeline_19_random_kitten_generator.groovy"
               ],
               "commitId":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
               "timestamp":1565431885000,
               "author":{ 
                  "absoluteUrl":"http://jenkins.leprofront.tech:8080/user/noreply",
                  "fullName":"noreply"
               },
               "authorEmail":"noreply@github.com",
               "comment":"Update pipeline_19_random_kitten_generator.groovy\n",
               "date":"2019-08-10 19:11:25 +0900",
               "id":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
               "msg":"Update pipeline_19_random_kitten_generator.groovy",
               "paths":[ 
                  { 
                     "editType":"edit",
                     "file":"pipeline/decrative-pipeline/pipeline_19_random_kitten_generator.groovy"
                  }
               ]
            }
         ],
         "kind":"git"
      }
   ],
   "culprits":[ 
      { 
         "absoluteUrl":"http://jenkins.leprofront.tech:8080/user/noreply",
         "fullName":"noreply"
      }
   ],
   "nextBuild":null,
   "previousBuild":{ 
      "number":16,
      "url":"http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/16/"
   }
}

ビルドの実行結果や、実行時間、上流のジョブなど、より詳細な情報を取得できています。

Pipeline REST API

pipeline-stage-view-plugin/rest-api at master · jenkinsci/pipeline-stage-view-plugin
Visualizes Jenkins pipelines. Contribute to jenkinsci/pipeline-stage-view-plugin development by creating an account on GitHub.

パイプラインジョブの情報を取得することができるAPIです。

パイプラインジョブのURLの後ろに/wfapi をつけると色々情報が取ます。

ジョブの情報取得

Remote access APIと同じように 03_write_fileのジョブの情報をみてみます。
http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/wfapi/

{ 
   "_links":{ 
      "self":{ 
         "href":"/job/decrative-pipeline/job/03_write_file/wfapi/describe"
      },
      "runs":{ 
         "href":"/job/decrative-pipeline/job/03_write_file/wfapi/runs"
      }
   },
   "name":"03_write_file",
   "runCount":5
}

エンドポイントのパスが出てきました。

wfapi/runs を見てみます。

http://jenkins.leprofront.tech:8080/job/decrative-pipeline/job/03_write_file/wfapi/runs
Jsonをクリックで展開します
[ 
   { 
      "_links":{ 
         "self":{ 
            "href":"/job/decrative-pipeline/job/03_write_file/17/wfapi/describe"
         },
         "changesets":{ 
            "href":"/job/decrative-pipeline/job/03_write_file/17/wfapi/changesets"
         }
      },
      "id":"17",
      "name":"#17",
      "status":"SUCCESS",
      "startTimeMillis":1567136586348,
      "endTimeMillis":1567136633687,
      "durationMillis":47339,
      "queueDurationMillis":11,
      "pauseDurationMillis":0,
      "stages":[ 
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/17/execution/node/6/wfapi/describe"
               }
            },
            "id":"6",
            "name":"Declarative: Checkout SCM",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1567136630725,
            "durationMillis":2430,
            "pauseDurationMillis":0
         },
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/17/execution/node/13/wfapi/describe"
               }
            },
            "id":"13",
            "name":"write file",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1567136633197,
            "durationMillis":469,
            "pauseDurationMillis":0
         }
      ]
   },
   { 
      "_links":{ 
         "self":{ 
            "href":"/job/decrative-pipeline/job/03_write_file/16/wfapi/describe"
         }
      },
      "id":"16",
      "name":"#16",
      "status":"SUCCESS",
      "startTimeMillis":1557466865325,
      "endTimeMillis":1557466871660,
      "durationMillis":6335,
      "queueDurationMillis":20,
      "pauseDurationMillis":0,
      "stages":[ 
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/16/execution/node/6/wfapi/describe"
               }
            },
            "id":"6",
            "name":"Declarative: Checkout SCM",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1557466869947,
            "durationMillis":1655,
            "pauseDurationMillis":0
         },
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/16/execution/node/13/wfapi/describe"
               }
            },
            "id":"13",
            "name":"write file",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1557466871618,
            "durationMillis":15,
            "pauseDurationMillis":0
         }
      ]
   },
   { 
      "_links":{ 
         "self":{ 
            "href":"/job/decrative-pipeline/job/03_write_file/15/wfapi/describe"
         }
      },
      "id":"15",
      "name":"#15",
      "status":"SUCCESS",
      "startTimeMillis":1554442450777,
      "endTimeMillis":1554442452894,
      "durationMillis":2117,
      "queueDurationMillis":6,
      "pauseDurationMillis":0,
      "stages":[ 
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/15/execution/node/6/wfapi/describe"
               }
            },
            "id":"6",
            "name":"Declarative: Checkout SCM",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1554442451871,
            "durationMillis":868,
            "pauseDurationMillis":0
         },
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/15/execution/node/13/wfapi/describe"
               }
            },
            "id":"13",
            "name":"write file",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1554442452776,
            "durationMillis":71,
            "pauseDurationMillis":0
         }
      ]
   },
   { 
      "_links":{ 
         "self":{ 
            "href":"/job/decrative-pipeline/job/03_write_file/14/wfapi/describe"
         }
      },
      "id":"14",
      "name":"#14",
      "status":"SUCCESS",
      "startTimeMillis":1554442389169,
      "endTimeMillis":1554442395175,
      "durationMillis":6006,
      "queueDurationMillis":2,
      "pauseDurationMillis":0,
      "stages":[ 
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/14/execution/node/6/wfapi/describe"
               }
            },
            "id":"6",
            "name":"Declarative: Checkout SCM",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1554442393462,
            "durationMillis":1671,
            "pauseDurationMillis":0
         },
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/14/execution/node/13/wfapi/describe"
               }
            },
            "id":"13",
            "name":"write file",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1554442395143,
            "durationMillis":13,
            "pauseDurationMillis":0
         }
      ]
   },
   { 
      "_links":{ 
         "self":{ 
            "href":"/job/decrative-pipeline/job/03_write_file/13/wfapi/describe"
         }
      },
      "id":"13",
      "name":"#13",
      "status":"SUCCESS",
      "startTimeMillis":1552486452530,
      "endTimeMillis":1552486458565,
      "durationMillis":6035,
      "queueDurationMillis":4,
      "pauseDurationMillis":0,
      "stages":[ 
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/13/execution/node/6/wfapi/describe"
               }
            },
            "id":"6",
            "name":"Declarative: Checkout SCM",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1552486456845,
            "durationMillis":1662,
            "pauseDurationMillis":0
         },
         { 
            "_links":{ 
               "self":{ 
                  "href":"/job/decrative-pipeline/job/03_write_file/13/execution/node/13/wfapi/describe"
               }
            },
            "id":"13",
            "name":"write file",
            "execNode":"",
            "status":"SUCCESS",
            "startTimeMillis":1552486458519,
            "durationMillis":23,
            "pauseDurationMillis":0
         }
      ]
   }
]

ビルドの履歴と、実行結果、ジョブの開始時間、実行時間といった情報が取れています。
Remote Access APIよりも情報量がしっかりしていて、なおかつ見やすい作りになっているようです。

ビルド結果の情報

最新のビルド結果の情報を確認してみます。

Error 404 Not Found
Jsonをクリックで展開します
{ 
   "_links":{ 
      "self":{ 
         "href":"/job/decrative-pipeline/job/03_write_file/17/wfapi/describe"
      },
      "changesets":{ 
         "href":"/job/decrative-pipeline/job/03_write_file/17/wfapi/changesets"
      }
   },
   "id":"17",
   "name":"#17",
   "status":"SUCCESS",
   "startTimeMillis":1567136586348,
   "endTimeMillis":1567136633687,
   "durationMillis":47339,
   "queueDurationMillis":11,
   "pauseDurationMillis":0,
   "stages":[ 
      { 
         "_links":{ 
            "self":{ 
               "href":"/job/decrative-pipeline/job/03_write_file/17/execution/node/6/wfapi/describe"
            }
         },
         "id":"6",
         "name":"Declarative: Checkout SCM",
         "execNode":"",
         "status":"SUCCESS",
         "startTimeMillis":1567136630725,
         "durationMillis":2430,
         "pauseDurationMillis":0
      },
      { 
         "_links":{ 
            "self":{ 
               "href":"/job/decrative-pipeline/job/03_write_file/17/execution/node/13/wfapi/describe"
            }
         },
         "id":"13",
         "name":"write file",
         "execNode":"",
         "status":"SUCCESS",
         "startTimeMillis":1567136633197,
         "durationMillis":469,
         "pauseDurationMillis":0
      }
   ]
}

ステージごとの情報が取得できていることがわかります。
ステージの名前や、ステージの成功失敗、ステージの開始時間や実行時間といった情報が取れています。

changesets のエンドポイントも見てみます。
http://jenkins.leprofront.tech:8080//job/decrative-pipeline/job/03_write_file/17/wfapi/changesets

[ 
   { 
      "kind":"git",
      "commitCount":1,
      "commits":[ 
         { 
            "commitId":"2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
            "commitUrl":"https://github.com/sakamaki-y123/jenkins-continuous-delivery/commit/2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
            "authorJenkinsId":"noreply",
            "message":"Update pipeline_19_random_kitten_generator.groovy",
            "timestamp":1565431885000,
            "consoleUrl":"/job/decrative-pipeline/job/03_write_file/17/changes#2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f"
         }
      ],
      "consoleUrl":"/job/decrative-pipeline/job/03_write_file/17/changes"
   }
]

Gitのどのリビジョンで実行されたものかがわかるようになっています。

他にも、artifactspendingInputActionsといったエンドポイントもあり、アーカイブされたファイルの情報を取得したりすることや、ユーザーの入力を求める際の情報などの情報が取得できるみたいです。

Blue Ocean REST API

blueocean-plugin/blueocean-rest at master · jenkinsci/blueocean-plugin
Blue Ocean is a reboot of the Jenkins CI/CD User Experience - blueocean-plugin/blueocean-rest at master · jenkinsci/blueocean-plugin

最後にBlue Ocean REST APIについての紹介です。
こちらはJenkinsのBlue Oceanのプラグインを入れことにより使えるようになります。

エンドポイントはJenkinsのURLの後ろに/blue/restをつけたものになります。

usersearchなど様々なエンドポイントがありそうですがよく使いそうなのはとorganizationsになりそうです。

Jenkinsのジョブの情報などを取得する際もorganizationsを使って確認していきます。

では実際に確認していきましょう。
/blue/rest/organizations
http://jenkins.leprofront.tech:8080/blue/rest/organizations/

[ 
   { 
      "_class":"io.jenkins.blueocean.service.embedded.rest.OrganizationImpl",
      "_links":{ 
         "pipelines":{ 
            "_class":"io.jenkins.blueocean.rest.hal.Link",
            "href":"/blue/rest/organizations/jenkins/pipelines/"
         },
         "self":{ 
            "_class":"io.jenkins.blueocean.rest.hal.Link",
            "href":"/blue/rest/organizations/jenkins/"
         },
         "user":{ 
            "_class":"io.jenkins.blueocean.rest.hal.Link",
            "href":"/blue/rest/organizations/jenkins/user/"
         },
         "users":{ 
            "_class":"io.jenkins.blueocean.rest.hal.Link",
            "href":"/blue/rest/organizations/jenkins/users/"
         }
      },
      "displayName":"Jenkins",
      "name":"jenkins"
   }
]

エンドポイントの情報が見れています。

今回もジョブの情報を見るところまでやっていきたいので、pipelinesを開いてみます。

パイプラインの情報を取得する

Jsonをクリックで展開します
{
  "_class": "io.jenkins.blueocean.service.embedded.rest.PipelineFolderImpl",
  "_links": {
    "self": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/"
    },
    "scm": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/scm/"
    },
    "actions": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/actions/"
    },
    "runs": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/runs/"
    },
    "trends": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/trends/"
    },
    "queue": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/queue/"
    }
  },
  "actions": [],
  "disabled": false,
  "displayName": "decrative-pipeline",
  "fullDisplayName": "decrative-pipeline",
  "fullName": "decrative-pipeline",
  "name": "decrative-pipeline",
  "organization": "jenkins",
  "parameters": null,
  "permissions": {
    "create": false,
    "configure": false,
    "read": true,
    "start": true,
    "stop": false
  },
  "numberOfFolders": 0,
  "numberOfPipelines": 25,
  "pipelineFolderNames": [
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null,
    null
  ]
}

フォルダの名称等はわかりましたが、piplineの一覧みたいな情報は取れませんでした。


ジョブの詳細を取得

ジョブの詳細を取得する場合はさらにURLの後ろにジョブ名を追加します。
http://jenkins.leprofront.tech:8080/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/03_write_file/

Jsonをクリックで展開します

{
  "_class": "io.jenkins.blueocean.rest.impl.pipeline.PipelineImpl",
  "_links": {
    "self": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/"
    },
    "scm": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/scm/"
    },
    "actions": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/actions/"
    },
    "runs": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/"
    },
    "trends": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/trends/"
    },
    "queue": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/queue/"
    }
  },
  "actions": [],
  "disabled": false,
  "displayName": "03_write_file",
  "estimatedDurationInMillis": 18597,
  "fullDisplayName": "decrative-pipeline/03_write_file",
  "fullName": "decrative-pipeline/03_write_file",
  "latestRun": {
    "_class": "io.jenkins.blueocean.rest.impl.pipeline.PipelineImpl$PipelineRunSummary",
    "_links": {
      "prevRun": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/16/"
      },
      "parent": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/"
      },
      "tests": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/tests/"
      },
      "log": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/log/"
      },
      "self": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/"
      },
      "blueTestSummary": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/blueTestSummary/"
      },
      "actions": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/actions/"
      },
      "changeSet": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/changeSet/"
      },
      "artifacts": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/artifacts/"
      }
    },
    "actions": [],
    "artifactsZipFile": null,
    "causeOfBlockage": null,
    "causes": [
      {
        "_class": "io.jenkins.blueocean.service.embedded.rest.AbstractRunImpl$BlueCauseImpl",
        "shortDescription": "Started by upstream project \"decrative-pipeline/08_parallel_step\" build number 9",
        "upstreamBuild": 9,
        "upstreamProject": "decrative-pipeline/08_parallel_step",
        "upstreamUrl": "job/decrative-pipeline/job/08_parallel_step/"
      }
    ],
    "description": null,
    "durationInMillis": 47339,
    "enQueueTime": "2019-08-30T12:43:06.337+0900",
    "endTime": "2019-08-30T12:43:53.687+0900",
    "estimatedDurationInMillis": 18597,
    "id": "17",
    "name": null,
    "organization": "jenkins",
    "pipeline": "03_write_file",
    "replayable": true,
    "result": "SUCCESS",
    "runSummary": "stable",
    "startTime": "2019-08-30T12:43:06.348+0900",
    "state": "FINISHED",
    "type": "WorkflowRun",
    "changeSet": [
      {
        "_class": "io.jenkins.blueocean.service.embedded.rest.ChangeSetResource",
        "_links": {
          "self": {
            "_class": "io.jenkins.blueocean.rest.hal.Link",
            "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/changeSet/2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f/"
          }
        },
        "affectedPaths": [
          "pipeline/decrative-pipeline/pipeline_19_random_kitten_generator.groovy"
        ],
        "author": {
          "_class": "io.jenkins.blueocean.service.embedded.rest.UserImpl",
          "_links": {
            "favorites": {
              "_class": "io.jenkins.blueocean.rest.hal.Link",
              "href": "/blue/rest/users/noreply/favorites/"
            },
            "self": {
              "_class": "io.jenkins.blueocean.rest.hal.Link",
              "href": "/blue/rest/users/noreply/"
            }
          },
          "avatar": null,
          "email": null,
          "fullName": "noreply",
          "id": "noreply",
          "permission": null
        },
        "checkoutCount": 0,
        "commitId": "2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
        "issues": [],
        "msg": "Update pipeline_19_random_kitten_generator.groovy",
        "timestamp": "2019-08-10T19:11:25.000+0900",
        "url": "https://github.com/sakamaki-y123/jenkins-continuous-delivery/commit/2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f"
      }
    ]
  },
  "name": "03_write_file",
  "organization": "jenkins",
  "parameters": [
    {
      "_class": "hudson.model.TextParameterDefinition",
      "defaultParameterValue": {
        "_class": "hudson.model.StringParameterValue",
        "name": "OUTPUT_TEXT",
        "value": ""
      },
      "description": "",
      "name": "OUTPUT_TEXT",
      "type": "TextParameterDefinition"
    }
  ],
  "permissions": {
    "create": false,
    "configure": false,
    "read": true,
    "start": true,
    "stop": false
  },
  "weatherScore": 100
}

ジョブの開始時間、終了時間、ステータス、チェンジセットなど様々な情報が取れています。
Pipeline REST APIよりも一回の情報量は多いですね。ビルド履歴に関しては取れていません。


ビルド履歴を取得する

ビルド履歴を取得するエンドポイントはrunsになります。
取得してみます。
http://jenkins.leprofront.tech:8080/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/03_write_file/runs/

Jsonをクリックで展開します
[
  {
    "_class": "io.jenkins.blueocean.rest.impl.pipeline.PipelineRunImpl",
    "_links": {
      "prevRun": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/16/"
      },
      "parent": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/"
      },
      "tests": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/tests/"
      },
      "nodes": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/nodes/"
      },
      "log": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/log/"
      },
      "self": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/"
      },
      "blueTestSummary": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/blueTestSummary/"
      },
      "actions": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/actions/"
      },
      "steps": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/steps/"
      },
      "changeSet": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/changeSet/"
      },
      "artifacts": {
        "_class": "io.jenkins.blueocean.rest.hal.Link",
        "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/artifacts/"
      }
    },
    "actions": [],
    "artifactsZipFile": null,
    "causeOfBlockage": null,
    "causes": [
      {
        "_class": "io.jenkins.blueocean.service.embedded.rest.AbstractRunImpl$BlueCauseImpl",
        "shortDescription": "Started by upstream project \"decrative-pipeline/08_parallel_step\" build number 9",
        "upstreamBuild": 9,
        "upstreamProject": "decrative-pipeline/08_parallel_step",
        "upstreamUrl": "job/decrative-pipeline/job/08_parallel_step/"
      }
    ],
    "description": null,
    "durationInMillis": 47339,
    "enQueueTime": "2019-08-30T12:43:06.337+0900",
    "endTime": "2019-08-30T12:43:53.687+0900",
    "estimatedDurationInMillis": 18597,
    "id": "17",
    "name": null,
    "organization": "jenkins",
    "pipeline": "03_write_file",
    "replayable": true,
    "result": "SUCCESS",
    "runSummary": "stable",
    "startTime": "2019-08-30T12:43:06.348+0900",
    "state": "FINISHED",
    "type": "WorkflowRun",
    "changeSet": [
      {
        "_class": "io.jenkins.blueocean.service.embedded.rest.ChangeSetResource",
        "_links": {
          "self": {
            "_class": "io.jenkins.blueocean.rest.hal.Link",
            "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/changeSet/2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f/"
          }
        },
        "affectedPaths": [
          "pipeline/decrative-pipeline/pipeline_19_random_kitten_generator.groovy"
        ],
        "author": {
          "_class": "io.jenkins.blueocean.service.embedded.rest.UserImpl",
          "_links": {
            "favorites": {
              "_class": "io.jenkins.blueocean.rest.hal.Link",
              "href": "/blue/rest/users/noreply/favorites/"
            },
            "self": {
              "_class": "io.jenkins.blueocean.rest.hal.Link",
              "href": "/blue/rest/users/noreply/"
            }
          },
          "avatar": null,
          "email": null,
          "fullName": "noreply",
          "id": "noreply",
          "permission": null
        },
        "checkoutCount": 0,
        "commitId": "2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f",
        "issues": [],
        "msg": "Update pipeline_19_random_kitten_generator.groovy",
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こちらもかなり細かく情報が取れています。


最後にビルド結果を見てみます。
ビルド結果はrunsの後ろにビルド番号を追加すると取得できます。
http://jenkins.leprofront.tech:8080/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/03_write_file/runs/17

Jsonをクリックで展開します
{
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    "log": {
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    "steps": {
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ここでの情報は先ほどまで出てきた情報とあまり変わりがありませんが、logstepsといったエンドポイントが扱えることがわかります。


stepsの内容を確認してみます。
http://jenkins.leprofront.tech:8080/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/03_write_file/runs/17/steps

[
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      "actions": {
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      }
    },
    "actions": [
      {
        "_class": "org.jenkinsci.plugins.workflow.support.actions.LogStorageAction",
        "_links": {
          "self": {
            "_class": "io.jenkins.blueocean.rest.hal.Link",
            "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/steps/14/log/"
          }
        },
        "urlName": "log"
      }
    ],
    "displayDescription": "output.txt",
    "displayName": "Write file to workspace",
    "durationInMillis": 4,
    "id": "14",
    "input": null,
    "result": "SUCCESS",
    "startTime": "2019-08-30T12:43:53.230+0900",
    "state": "FINISHED",
    "type": "STEP"
  }
]

Pipelineで実行されているstepごとの実行時間が取得できています。ここまでの情報はPipeline REST APIでは取れなかったと思います。


stepにはIDが振られておりさらに掘り下げて確認することができます。
http://jenkins.leprofront.tech:8080/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/03_write_file/runs/17/steps/7/

{
  "_class": "io.jenkins.blueocean.rest.impl.pipeline.PipelineStepImpl",
  "_links": {
    "self": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/steps/7/"
    },
    "actions": {
      "_class": "io.jenkins.blueocean.rest.hal.Link",
      "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/steps/7/actions/"
    }
  },
  "actions": [
    {
      "_class": "org.jenkinsci.plugins.workflow.support.actions.LogStorageAction",
      "_links": {
        "self": {
          "_class": "io.jenkins.blueocean.rest.hal.Link",
          "href": "/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/pipelines/03_write_file/runs/17/steps/7/log/"
        }
      },
      "urlName": "log"
    }
  ],
  "displayDescription": null,
  "displayName": "Check out from version control",
  "durationInMillis": 2420,
  "id": "7",
  "input": null,
  "result": "SUCCESS",
  "startTime": "2019-08-30T12:43:50.731+0900",
  "state": "FINISHED",
  "type": "STEP"
}

さらにlogのエンドポイントがあるので、ステップごとのログが取得できそうです。


ステップのログを確認してみます。
http://jenkins.leprofront.tech:8080/blue/rest/organizations/jenkins/pipelines/decrative-pipeline/03_write_file/runs/17/steps/7/log

No credentials specified
Cloning the remote Git repository
Cloning repository https://github.com/sakamaki-y123/jenkins-continuous-delivery.git
 > git init /var/lib/jenkins/workspace/decrative-pipeline/03_write_file # timeout=10
Fetching upstream changes from https://github.com/sakamaki-y123/jenkins-continuous-delivery.git
 > git --version # timeout=10
 > git fetch --tags --progress https://github.com/sakamaki-y123/jenkins-continuous-delivery.git +refs/heads/*:refs/remotes/origin/*
 > git config remote.origin.url https://github.com/sakamaki-y123/jenkins-continuous-delivery.git # timeout=10
 > git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
 > git config remote.origin.url https://github.com/sakamaki-y123/jenkins-continuous-delivery.git # timeout=10
Fetching upstream changes from https://github.com/sakamaki-y123/jenkins-continuous-delivery.git
 > git fetch --tags --progress https://github.com/sakamaki-y123/jenkins-continuous-delivery.git +refs/heads/*:refs/remotes/origin/*
 > git rev-parse refs/remotes/origin/master^{commit} # timeout=10
 > git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=10
Checking out Revision 2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f (refs/remotes/origin/master)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 2ae5f87662481e3cedaf98b9b6faa64e4e8e0a7f
Commit message: "Update pipeline_19_random_kitten_generator.groovy"

BlueOceanで確認できるログが取得できました。

まとめ

APIを使うとJenkinsの情報を色々取得することができます。
この記事では以下の3種類のAPIを紹介しました。

  1. Remote access API
  2. Pipeline REST API
  3. Blue Ocean REST API

それぞれのAPIで取得できる情報の粒度がだいぶ違うので用途に合わせて使い分けることができればやれることの幅が広がると思います。

Remote access API を使って全体的な大まかな情報を取得、Pipeline REST API を使って細かな情報の取得。
さらにpipelineのステップごとの情報といったより細かな情報を取得するときは Blue Ocean REST APIと使い分けるのがポイントだと思いました。

3つのAPIは取れる情報が重複する部分もありますが、そのAPIでしか取れない情報もあるので色々と眺めてみると面白いのでなないでしょうか?

Pipeline には readJSON という便利なステップがあるので、組み合わせて使うと色々と情報の加工ができると思います。また、pythonやほかの言語を使っていろいろとジョブの分析をしたりといったことができそうです。

おすすめ書籍


[改訂第3版]Jenkins実践入門 ――ビルド・テスト・デプロイを自動化する技術 (WEB+DB PRESS plus)

初めてJenkinsを学ぶ方におすすめです。


Jenkins

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