oc patch 替换图像名称错误“json：无法将对象解组为 jsonpatch.Patch 类型的 Go 值”

Question

我需要对以下部署应用 oc 补丁，更改“image”的值。但我可以\xc2\xb4t 这样做，这是由错误引起的：

\n

部署 YML：

\n

root@oc-jump-pod:/# oc get  deploy deploy-test -o json\n{\n    "apiVersion": "extensions/v1beta1",\n    "kind": "Deployment",\n    "metadata": {\n        "annotations": {\n            "deployment.kubernetes.io/revision": "3",\n            "meta.helm.sh/release-name": "teste",\n            "meta.helm.sh/release-namespace": "sda-test"\n        },\n        "creationTimestamp": "2020-05-25T07:01:14Z",\n        "generation": 23,\n        "labels": {\n            "app.kubernetes.io/instance": "test",\n            "app.kubernetes.io/managed-by": "Helm",\n            "app.kubernetes.io/name": "test",\n            "app.kubernetes.io/version": "latest",\n            "helm.sh/chart": "test-1.0.0"\n        },\n        "name": "test",\n        "namespace": "test-1",\n        "resourceVersion": "19316664",\n        "selfLink": "/apis/extensions/v1beta1/namespaces/test/deployments/test",\n        "uid": "863d7397"\n    },\n    "spec": {\n        "progressDeadlineSeconds": 600,\n        "replicas": 1,\n        "revisionHistoryLimit": 10,\n        "selector": {\n            "matchLabels": {\n                "app.kubernetes.io/instance": "test",\n                "app.kubernetes.io/name": "test"\n            }\n        },\n        "strategy": {\n            "rollingUpdate": {\n                "maxSurge": "25%",\n                "maxUnavailable": "25%"\n            },\n            "type": "RollingUpdate"\n        },\n        "template": {\n            "metadata": {\n                "creationTimestamp": null,\n                "labels": {\n                    "app.kubernetes.io/instance": "test",\n                    "app.kubernetes.io/name": "test"\n                }\n            },\n            "spec": {\n                "containers": [\n                    {\n                        "env": [\n                            {\n                                "name": "APP_NAME",\n                                "value": "test"\n                            },\n                            {\n                                "name": "JAVA_OPTS_EXT",\n                                "value": "-Djava.security.egd=file:/dev/./urandom -Dcom.sun.net.ssl.checkRevocation=false  -Djavax.net.ssl.trustStore=/etc/truststore/jssecacerts -Djavax.net.ssl.trustStorePassword=changeit"\n                            },\n                            {\n                                "name": "SPRING_CLOUD_CONFIG_PROFILE",\n                                "value": "pre"\n                            },\n                            {\n                                "name": "TZ",\n                                "value": "Europe/Madrid"\n                            },\n                            {\n                                "name": "WILY_MOM_PORT",\n                                "value": "5001"\n                            },\n                            {\n                                "name": "spring_application_name",\n                                "value": "test"\n                            },\n                            {\n                                "name": "spring_cloud_config_uri",\n                                "value": "https://config.test.svc.cluster.local"\n                            }\n                        ],\n                        "image": "registry.sdi.dev.weu.azure.paas.cloudcenter.corp/test-dev/test-java:0.0.2",\n                        "imagePullPolicy": "Always",\n                        "name": "test",\n                        "ports": [\n                            {\n                                "containerPort": 8080,\n                                "protocol": "TCP"\n                            }\n  ],\n                        "resources": {\n                        ...\n\n

\n

I\xc2\xb4m 尝试以下操作：

\n

root@oc-jump-pod:/# oc patch deploy push-engine --type='json' -p='{"spec":{"template":{"metadata":{"spec":{"containers":{"image":"registry.sdi.\ndev.weu.azure.paas.cloudcenter.corp/test-dev/test:0.0.1"}}}}}}'\nError from server (BadRequest): json: cannot unmarshal object into Go value of type jsonpatch.Patch\n

\n

这是为了获得价值

\n

root@oc-jump-pod:/# oc get deploy push-engine -o=jsonpath='{..image}'\nregistry.sdi.dev.weu.azure.paas.cloudcenter.corp/test-dev/test-java:0.0.2\n

\n

我需要这样做，将图像的标签从 0.0.2 更改为 0.0.1 （或其他）。可能我还不了解 oc 补丁，实际上我在 oc 控制台上手动进行更改。但这种方法比较粗鲁，不遵循 CI/CD。

\n

Answer 1

适合您的正确 JSON 补丁文档Deployment可能如下所示：

[
    {
        "op": "replace",
        "path": "/spec/template/spec/containers/0/image",
        "value": "registry.sdi.dev.weu.azure.paas.cloudcenter.corp/test-dev/test:0.0.1"
    }
]

您的示例将不起作用，因为它不反映原始yaml文件的结构。请注意，它包含数组 [...]，并且您将其视为仅包含映射 {...}。

您的最终oc patch命令可能如下所示：

oc patch deploy push-engine --type='json' -p '[{ "op": "replace", "path": "/spec/template/spec/containers/0/image", "value": "registry.sdi.dev.weu.azure.paas.cloudcenter.corp/test-dev/test:0.0.1" }]'