jq: error: syntax error, unexpected if, while checking for a object to be present and if not the adding default value

jq: error: syntax error, unexpected if, while checking for a object to be present and if not the adding default value

获取错误

jq: error: syntax error, unexpected if (Unix shell quoting issues?) at <top-level> while parsing kubernetes kubectl command,
kubectl get pv -o=json | jq -c '.items[] | {name: .metadata.name, claimName: .spec | if has("claimRef") then .claimRef.name else empty end }'

尝试获取具有 PVC 的 PV，如果没有 PVC，则可能为空。 对于它构建名称映射及其各自的 PVC，否则为空或 null。

下面是 jq 命令的示例输入或命令的输出 kubectl get pv -o=json

{
    "apiVersion": "v1",
    "items": [{
            "apiVersion": "v1",
            "kind": "PersistentVolume",
            "metadata": {
                "annotations": {
                    "meta.helm.sh/release-name": "",
                    "meta.helm.sh/release-namespace": ""
                },
                "creationTimestamp": "",
                "finalizers": [
                    ""
                ],
                "labels": {
                    "app.kubernetes.io/managed-by": ""
                },
                "name": "",
                "resourceVersion": "",
                "uid": ""
            },
            "spec": {
                "accessModes": [
                    "ReadWriteMany"
                ],
                "capacity": {
                    "storage": ""
                },
                "claimRef": {
                    "apiVersion": "",
                    "kind": "",
                    "name": "",
                    "namespace": "",
                    "resourceVersion": "",
                    "uid": ""
                },
                "csi": {
                    "driver": "",
                    "volumeHandle": ""
                },
                "persistentVolumeReclaimPolicy": "",
                "volumeMode": ""
            },
            "status": {
                "phase": ""
            }
        },
        {
            "apiVersion": "v1",
            "kind": "PersistentVolume",
            "metadata": {
                "annotations": {
                    "meta.helm.sh/release-name": "",
                    "meta.helm.sh/release-namespace": ""
                },
                "creationTimestamp": "",
                "finalizers": [
                    ""
                ],
                "labels": {
                    "app.kubernetes.io/managed-by": ""
                },
                "name": "",
                "resourceVersion": "",
                "uid": ""
            },
            "spec": {
                "accessModes": [
                    "ReadWriteMany"
                ],
                "capacity": {
                    "storage": ""
                },
                "claimRef": {
                    "apiVersion": "",
                    "kind": "",
                    "name": "",
                    "namespace": "",
                    "resourceVersion": "",
                    "uid": ""
                },
                "csi": {
                    "driver": "",
                    "volumeHandle": ""
                },
                "persistentVolumeReclaimPolicy": "",
                "volumeMode": ""
            },
            "status": {
                "phase": ""
            }
        }
    ],
    "kind": "List",
    "metadata": {
        "resourceVersion": "",
        "selfLink": ""
    }
}

为了数据安全，删除了数据，只保留了密钥 请帮忙

将 claimName 字段的值括起来：

{
  name: .metadata.name,
  claimName: (.spec | if has("claimRef") then .claimRef.name else empty end)
}

根据示例的简化程度，您可以考虑将 if 语句减少为：

{
  name: .metadata.name,
  claimName: (.spec.claimRef.name? // empty)
}

请注意，在这两种情况下，如果相应的测试失败，不仅 .claimName 整个对象都会消失。