juju状态和jq过滤混合了JSON状态下多个对象的内容

tl；dr

我试图获得juju状态的JSON表示，它将机器、实例id和单元对象化，使JSON看起来类似于：

{
  "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"
       }
}

它的长度：

mung

juju status——格式json

对我来说很复杂，因为要mung的数据在json中的两个不同的主对象之间分割。因为机器的键是不可编辑的，但是，我以后不能像引用数组一样引用它们——或者至少我认为这是我搞砸的地方

有些事情我尝试过，但失败了（主要是因为我很难存储

.machines

密钥以备以后使用）

juju状态——格式化json | jq-r'。机器为$m |.机器|[foreach键[]为$item（{m:$item，id:$m[$item]。“实例id”}）]”

…|juju状态——将json | jq-r.机器|密钥[]格式设置为$k.。

…|juju状态——将json | jq-r.机器|键[]格式化为$k |…

要么我没有得到我需要的结果，要么我得到一个语法错误。我从来没有必要在jq上下文中使用

foreach

。事实上，这是我用

jq

尝试完成的最复杂的事情，所以我远远超出了我的舒适区。如蒙协助，将不胜感激

下面是一个示例

jujujustatus

JSON对象：

{
  "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"
    }
  }
}

---

我不清楚“单位名称”的值究竟应该如何推导，但以下几点应该可以帮助您：

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))
           } }

通过您的输入，这将生成一个对象流，开始于：

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

外卖 该解决方案说明了三个值得注意的要点：

to_entries

在需要使用键/值组合时非常有用，而特定的键（或多个键）事先不知道；另一种方法是使用未排序的

键

当从不同来源收集信息时，美元变量非常方便

jq对函数定义的支持使得编写比其他方式更具可读性和可维护性的程序成为可能

---

谢谢@peak，我清理了它，并修复了最终结果。如果还有什么东西需要打磨，一定要让我知道。“i-XXXXXXXXXXXXX”是从哪里来的？你能不能安排“实例id”的值不同，以便清楚它们来自哪里？此外，机器“10”与源中的“kubernetes worker/4”关联，但与预期输出中的“etcd/0”关联。如果您能将整个示例最小化，这可能会对每个人都有帮助。@peak提供最小的输入是困难的，前提是它是动态的，而且我对它几乎一无所知。在未来的迭代中，删除除我正在寻找的内容之外的所有内容可能会提供错误表示的数据集。但是，我重新验证了源数据（进行了修复）。我并不担心实际数据（即RVAL），我更担心从LHS的

.machines

和

.applications

父对象中获得正确的对象键。换句话说，如果我能得到正确的键，数据将是正确的。我不太了解jq，所以不能这么做。像冠军一样工作！现在，我永远无法想象这是一个解决方案。我将研究这个答案并学习。谢谢你，匹克。