статус juju и фильтрация jq смешивают вещи из нескольких объектов в статусе JSON - PullRequest
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статус juju и фильтрация jq смешивают вещи из нескольких объектов в статусе JSON

0 голосов
/ 27 апреля 2018

ТЛ; др

Я пытаюсь получить JSON-представление вывода juju status, которое объективирует машину, идентификатор экземпляра и модуль так, что JSON выглядит примерно так: 

{
  "0": {
          "instance-id": "i-xxxxxxxxxxxxxx",
          "unit-name": "easyrsa/0"
       },
  "1": {
          "instance-id": "i-xxxxxxxxxxxxxx",
          "unit-name": "etcd/0"
       },
  "2": {
          "instance-id": "i-xxxxxxxxxxxxxx",
          "unit-name": "kubeapi-load-balancer/0"
       },
  "10": {
          "instance-id": "i-xxxxxxxxxxxxxx",
          "unit-name": "kubernetes-worker/4"
       },
  "11": {
          "instance-id": "i-xxxxxxxxxxxxxx",
          "unit-name": "kubernetes-worker/5"
       },
  "12": {
          "instance-id": "i-xxxxxxxxxxxxxx",
          "unit-name": "kubernetes-master/3"
       }
}

Длинна этого:

Munging juju status --format json сложен для меня, потому что данные, которые должны быть обработаны, разделены между двумя различными основными объектами в JSON. Поскольку ключи для машин не повторяемы, я не могу ссылаться на них позже, как на массив - или, по крайней мере, именно здесь я думаю, что я запутался.

Некоторые вещи, которые я пробовал, но потерпели неудачу (в основном из-за того, что я пытаюсь сохранить ключи .machines для последующего использования) ...

juju status --format json | jq -r '.machines as $m | .machines | [foreach keys[] as $item ({m: $item, id: $m[$item]."instance-id"})]'

... | juju status --format json | jq -r '.machines | keys[] as $k...

... | juju status --format json | jq -r '.machines | keys[] as $k |...

Либо я не получаю нужный мне результат, либо получаю синтаксическую ошибку. У меня никогда не было необходимости использовать foreach в контексте jq. На самом деле, это самая сложная вещь, которую я пытался выполнить с jq, так что я далеко за пределами моей зоны комфорта. Любая помощь будет принята с благодарностью.

Вот пример juju status JSON-объект: 

{
  "model": {
    "name": "xxxxxxxxxx",
    "controller": "xxxxxxxxxx",
    "cloud": "xxxxxxxxxx",
    "region": "xxxxxxxxxx",
    "version": "xxxxxxxxxx",
    "model-status": {
      "current": "xxxxxxxxxx",
      "since": "xxxxxxxxxx"
    },
    "sla": "xxxxxxxxxx"
  },
  "machines": {
    "0": {
      "juju-status": {
        "current": "xxxxxxxxxx",
        "since": "xxxxxxxxxx",
        "version": "xxxxxxxxxx"
      },
      "dns-name": "xxxxxxxxxx",
      "ip-addresses": [
        "10.0.0.229",
        "252.0.229.1"
      ],
      "instance-id": "i-xxxxxxxxxxxxxx",
      "machine-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "series": "xxxxxxxxxx",
      "network-interfaces": {
        "eth0": {
          "ip-addresses": [
            "10.0.0.229"
          ],
          "mac-address": "xxxxxxxxxx",
          "gateway": "xxxxxxxxxx",
          "is-up": true
        },
        "fan-252": {
          "ip-addresses": [
            "252.0.229.1"
          ],
          "mac-address": "xxxxxxxxxx",
          "is-up": true
        }
      },
      "constraints": "xxxxxxxxxx",
      "hardware": "xxxxxxxxxx"
    },
    "1": {
      "juju-status": {
        "current": "xxxxxxxxxx",
        "since": "xxxxxxxxxx",
        "version": "xxxxxxxxxx"
      },
      "dns-name": "xxxxxxxxxx",
      "ip-addresses": [
        "10.0.0.61",
        "252.0.61.1"
      ],
      "instance-id": "i-xxxxxxxxxxxxxx",
      "machine-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "series": "xxxxxxxxxx",
      "network-interfaces": {
        "eth0": {
          "ip-addresses": [
            "10.0.0.61"
          ],
          "mac-address": "xxxxxxxxxx",
          "gateway": "xxxxxxxxxx",
          "is-up": true
        },
        "fan-252": {
          "ip-addresses": [
            "252.0.61.1"
          ],
          "mac-address": "xxxxxxxxxx",
          "is-up": true
        }
      },
      "constraints": "xxxxxxxxxx",
      "hardware": "xxxxxxxxxx"
    },
    "10": {
      "juju-status": {
        "current": "xxxxxxxxxx",
        "since": "xxxxxxxxxx",
        "version": "xxxxxxxxxx"
      },
      "dns-name": "xxxxxxxxxx",
      "ip-addresses": [
        "10.0.0.37",
        "252.0.37.1"
      ],
      "instance-id": "i-xxxxxxxxxxxxxx",
      "machine-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "series": "xxxxxxxxxx",
      "network-interfaces": {
        "ens5": {
          "ip-addresses": [
            "10.0.0.37"
          ],
          "mac-address": "xxxxxxxxxx",
          "gateway": "xxxxxxxxxx",
          "is-up": true
        },
        "fan-252": {
          "ip-addresses": [
            "252.0.37.1"
          ],
          "mac-address": "xxxxxxxxxx",
          "is-up": true
        }
      },
      "constraints": "xxxxxxxxxx",
      "hardware": "xxxxxxxxxx"
    },
    "11": {
      "juju-status": {
        "current": "xxxxxxxxxx",
        "since": "xxxxxxxxxx",
        "version": "xxxxxxxxxx"
      },
      "dns-name": "xxxxxxxxxx",
      "ip-addresses": [
        "10.0.0.54"
      ],
      "instance-id": "i-xxxxxxxxxxxxxx",
      "machine-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "series": "xxxxxxxxxx",
      "network-interfaces": {
        "ens5": {
          "ip-addresses": [
            "10.0.0.54"
          ],
          "mac-address": "xxxxxxxxxx",
          "gateway": "xxxxxxxxxx",
          "is-up": true
        }
      },
      "constraints": "xxxxxxxxxx",
      "hardware": "xxxxxxxxxx"
    },
    "12": {
      "juju-status": {
        "current": "xxxxxxxxxx",
        "since": "xxxxxxxxxx",
        "version": "xxxxxxxxxx"
      },
      "dns-name": "xxxxxxxxxx",
      "ip-addresses": [
        "10.0.0.101"
      ],
      "instance-id": "i-xxxxxxxxxxxxxx",
      "machine-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "series": "xxxxxxxxxx",
      "network-interfaces": {
        "ens5": {
          "ip-addresses": [
            "10.0.0.101"
          ],
          "mac-address": "xxxxxxxxxx",
          "gateway": "xxxxxxxxxx",
          "is-up": true
        }
      },
      "constraints": "xxxxxxxxxx",
      "hardware": "xxxxxxxxxx"
    },
    "2": {
      "juju-status": {
        "current": "xxxxxxxxxx",
        "since": "xxxxxxxxxx",
        "version": "xxxxxxxxxx"
      },
      "dns-name": "xxxxxxxxxx",
      "ip-addresses": [
        "10.0.0.184",
        "252.0.184.1"
      ],
      "instance-id": "i-xxxxxxxxxxxxxx",
      "machine-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "series": "xxxxxxxxxx",
      "network-interfaces": {
        "eth0": {
          "ip-addresses": [
            "10.0.0.184"
          ],
          "mac-address": "xxxxxxxxxx",
          "gateway": "xxxxxxxxxx",
          "is-up": true
        },
        "fan-252": {
          "ip-addresses": [
            "252.0.184.1"
          ],
          "mac-address": "xxxxxxxxxx",
          "is-up": true
        }
      },
      "constraints": "xxxxxxxxxx",
      "hardware": "xxxxxxxxxx"
    }
  },
  "applications": {
    "easyrsa": {
      "charm": "xxxxxxxxxx",
      "series": "xxxxxxxxxx",
      "os": "xxxxxxxxxx",
      "charm-origin": "xxxxxxxxxx",
      "charm-name": "xxxxxxxxxx",
      "charm-rev": 39,
      "can-upgrade-to": "xxxxxxxxxx",
      "exposed": false,
      "application-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "relations": {
        "client": [
          "etcd",
          "kubeapi-load-balancer",
          "kubernetes-master",
          "kubernetes-worker"
        ]
      },
      "units": {
        "easyrsa/0": {
          "workload-status": {
            "current": "xxxxxxxxxx",
            "message": "xxxxxxxxxx",
            "since": "xxxxxxxxxx"
          },
          "juju-status": {
            "current": "xxxxxxxxxx",
            "since": "xxxxxxxxxx",
            "version": "xxxxxxxxxx"
          },
          "leader": true,
          "machine": "0",
          "public-address": "xxxxxxxxxx"
        }
      },
      "version": "xxxxxxxxxx"
    },
    "etcd": {
      "charm": "xxxxxxxxxx",
      "series": "xxxxxxxxxx",
      "os": "xxxxxxxxxx",
      "charm-origin": "xxxxxxxxxx",
      "charm-name": "xxxxxxxxxx",
      "charm-rev": 77,
      "can-upgrade-to": "xxxxxxxxxx",
      "exposed": false,
      "application-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "relations": {
        "certificates": [
          "easyrsa"
        ],
        "cluster": [
          "etcd"
        ],
        "db": [
          "flannel",
          "kubernetes-master"
        ]
      },
      "units": {
        "etcd/0": {
          "workload-status": {
            "current": "xxxxxxxxxx",
            "message": "xxxxxxxxxx",
            "since": "xxxxxxxxxx"
          },
          "juju-status": {
            "current": "xxxxxxxxxx",
            "since": "xxxxxxxxxx",
            "version": "xxxxxxxxxx"
          },
          "leader": true,
          "machine": "1",
          "open-ports": [
            "2379/tcp"
          ],
          "public-address": "xxxxxxxxxx"
        }
      },
      "version": "xxxxxxxxxx"
    },
    "flannel": {
      "charm": "xxxxxxxxxx",
      "series": "xxxxxxxxxx",
      "os": "xxxxxxxxxx",
      "charm-origin": "xxxxxxxxxx",
      "charm-name": "xxxxxxxxxx",
      "charm-rev": 52,
      "can-upgrade-to": "xxxxxxxxxx",
      "exposed": false,
      "application-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "relations": {
        "cni": [
          "kubernetes-master",
          "kubernetes-worker"
        ],
        "etcd": [
          "etcd"
        ]
      },
      "subordinate-to": [
        "kubernetes-master",
        "kubernetes-worker"
      ],
      "version": "xxxxxxxxxx"
    },
    "kubeapi-load-balancer": {
      "charm": "xxxxxxxxxx",
      "series": "xxxxxxxxxx",
      "os": "xxxxxxxxxx",
      "charm-origin": "xxxxxxxxxx",
      "charm-name": "xxxxxxxxxx",
      "charm-rev": 57,
      "can-upgrade-to": "xxxxxxxxxx",
      "exposed": true,
      "application-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "relations": {
        "apiserver": [
          "kubernetes-master"
        ],
        "certificates": [
          "easyrsa"
        ],
        "loadbalancer": [
          "kubernetes-master"
        ],
        "website": [
          "kubernetes-worker"
        ]
      },
      "units": {
        "kubeapi-load-balancer/0": {
          "workload-status": {
            "current": "xxxxxxxxxx",
            "message": "xxxxxxxxxx",
            "since": "xxxxxxxxxx"
          },
          "juju-status": {
            "current": "xxxxxxxxxx",
            "since": "xxxxxxxxxx",
            "version": "xxxxxxxxxx"
          },
          "leader": true,
          "machine": "2",
          "open-ports": [
            "443/tcp"
          ],
          "public-address": "xxxxxxxxxx"
        }
      },
      "version": "xxxxxxxxxx"
    },
    "kubernetes-master": {
      "charm": "xxxxxxxxxx",
      "series": "xxxxxxxxxx",
      "os": "xxxxxxxxxx",
      "charm-origin": "xxxxxxxxxx",
      "charm-name": "xxxxxxxxxx",
      "charm-rev": 102,
      "can-upgrade-to": "xxxxxxxxxx",
      "exposed": false,
      "application-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "relations": {
        "certificates": [
          "easyrsa"
        ],
        "cni": [
          "flannel"
        ],
        "etcd": [
          "etcd"
        ],
        "kube-api-endpoint": [
          "kubeapi-load-balancer"
        ],
        "kube-control": [
          "kubernetes-worker"
        ],
        "loadbalancer": [
          "kubeapi-load-balancer"
        ]
      },
      "units": {
        "kubernetes-master/3": {
          "workload-status": {
            "current": "xxxxxxxxxx",
            "message": "xxxxxxxxxx",
            "since": "xxxxxxxxxx"
          },
          "juju-status": {
            "current": "xxxxxxxxxx",
            "since": "xxxxxxxxxx",
            "version": "xxxxxxxxxx"
          },
          "leader": true,
          "machine": "12",
          "open-ports": [
            "6443/tcp"
          ],
          "public-address": "xxxxxxxxxx",
          "subordinates": {
            "flannel/9": {
              "workload-status": {
                "current": "xxxxxxxxxx",
                "message": "xxxxxxxxxx",
                "since": "xxxxxxxxxx"
              },
              "juju-status": {
                "current": "xxxxxxxxxx",
                "since": "xxxxxxxxxx",
                "version": "xxxxxxxxxx"
              },
              "upgrading-from": "xxxxxxxxxx",
              "public-address": "xxxxxxxxxx"
            }
          }
        }
      },
      "version": "xxxxxxxxxx"
    },
    "kubernetes-worker": {
      "charm": "xxxxxxxxxx",
      "series": "xxxxxxxxxx",
      "os": "xxxxxxxxxx",
      "charm-origin": "xxxxxxxxxx",
      "charm-name": "xxxxxxxxxx",
      "charm-rev": 114,
      "can-upgrade-to": "xxxxxxxxxx",
      "exposed": false,
      "application-status": {
        "current": "xxxxxxxxxx",
        "message": "xxxxxxxxxx",
        "since": "xxxxxxxxxx"
      },
      "relations": {
        "certificates": [
          "easyrsa"
        ],
        "cni": [
          "flannel"
        ],
        "kube-api-endpoint": [
          "kubeapi-load-balancer"
        ],
        "kube-control": [
          "kubernetes-master"
        ]
      },
      "units": {
        "kubernetes-worker/4": {
          "workload-status": {
            "current": "xxxxxxxxxx",
            "message": "xxxxxxxxxx",
            "since": "xxxxxxxxxx"
          },
          "juju-status": {
            "current": "xxxxxxxxxx",
            "since": "xxxxxxxxxx",
            "version": "xxxxxxxxxx"
          },
          "machine": "10",
          "open-ports": [
            "80/tcp",
            "443/tcp"
          ],
          "public-address": "xxxxxxxxxx",
          "subordinates": {
            "flannel/7": {
              "workload-status": {
                "current": "xxxxxxxxxx",
                "message": "xxxxxxxxxx",
                "since": "xxxxxxxxxx"
              },
              "juju-status": {
                "current": "xxxxxxxxxx",
                "since": "xxxxxxxxxx",
                "version": "xxxxxxxxxx"
              },
              "upgrading-from": "xxxxxxxxxx",
              "public-address": "xxxxxxxxxx"
            }
          }
        },
        "kubernetes-worker/5": {
          "workload-status": {
            "current": "xxxxxxxxxx",
            "message": "xxxxxxxxxx",
            "since": "xxxxxxxxxx"
          },
          "juju-status": {
            "current": "xxxxxxxxxx",
            "since": "xxxxxxxxxx",
            "version": "xxxxxxxxxx"
          },
          "leader": true,
          "machine": "11",
          "open-ports": [
            "80/tcp",
            "443/tcp"
          ],
          "public-address": "xxxxxxxxxx",
          "subordinates": {
            "flannel/8": {
              "workload-status": {
                "current": "xxxxxxxxxx",
                "message": "xxxxxxxxxx",
                "since": "xxxxxxxxxx"
              },
              "juju-status": {
                "current": "xxxxxxxxxx",
                "since": "xxxxxxxxxx",
                "version": "xxxxxxxxxx"
              },
              "leader": true,
              "upgrading-from": "xxxxxxxxxx",
              "public-address": "xxxxxxxxxx"
            }
          }
        }
      },
      "version": "xxxxxxxxxx"
    }
  }
}

1 Ответ

0 голосов
/ 29 апреля 2018

Мне неясно, как именно должно быть получено значение «имя-единицы», но следующее должно помочь вам: 

def machine($id):
  first(.applications[]
    | (.units? // empty)
    | to_entries[]
    | select(.value.machine == $id)
    | .key ) ;

. as $in
| .machines
| to_entries[]
| .key as $key
| {($key): {
             "unit-name": (.value |.["instance-id"]),
             "machine": ($in|machine($key))
           } }

С вашим вводом получается поток объектов, начинающихся: 

{
  "0": {
    "unit-name": "xxxxxxxxxx",
    "machine": "easyrsa/0"
  }
}
{
  "1": {
    "unit-name": "xxxxxxxxxx",
    "machine": "etcd/0"
  }
}

Takeaways

Решение иллюстрирует три заслуживающих внимания пункта:

  1. to_entries полезно, когда нужно работать с комбинациями клавиш / значений, когда интересующий конкретный ключ (или ключи) неизвестен (или неизвестен) заранее; альтернатива - использовать keys_unsorted;

  2. долларовые переменные удобны при сборе информации из разных источников;

  3. Поддержка jq определений функций позволяет писать программы, более удобочитаемые и поддерживаемые, чем они могли бы быть.

...