更新时间：2022-08-31 GMT+08:00
PATCH请求方法操作示例
本章节主要介绍PATCH请求方法中，“Merge Patch”与“Strategic Merge Patch”类型的操作示例。
操作示例
以创建Deployment资源对象为例。
请求示例
{
"apiVersion": "v1",
"kind": "Deployment",
"metadata": {
"name": "nginx"
},
"spec": {
"replicas": 2,
"selector": {
"app": "nginx"
},
"template": {
"metadata": {
"labels": {
"app": "nginx"
}
},
"spec": {
"containers": [
{
"name": "redis",
"image": "redis:latest",
"ports": [
{
"containerPort": 80
}
]
}
]
}
}
}
}
响应示例
{
"kind": "ReplicationController",
"apiVersion": "v1",
"metadata": {
"name": "frontend-controller",
"namespace": "default",
"selfLink": "/api/v1/namespaces/default/replicationcontrollers/nginx-controller",
"uid": "549b2234-5d46-11e6-aeb9-286ed488fafe",
"resourceVersion": "4110",
"generation": 1,
"creationTimestamp": "2016-08-08T08:58:52Z",
"labels": {
"app": "nginx"
}
},
"spec": {
"replicas": 2,
"selector": {
"app": "nginx"
},
"template": {
"metadata": {
"creationTimestamp": null,
"labels": {
"app": "nginx"
}
},
"spec": {
"containers": [
{
"name": "redis",
"image": "redis:latest",
"ports": [
{
"containerPort": 80,
"protocol": "TCP"
}
],
"resources": {},
"terminationMessagePath": "/dev/termination-log",
"imagePullPolicy": "Always"
}
],
"restartPolicy": "Always",
"dnsPolicy": "ClusterFirst",
"securityContext": {}
}
}
},
"status": {
"replicas": 0
}
}
- 如果使用“Merge Patch”类型操作，添加一个容器到指定Deployment的“template”参数中，则其中的整个容器列表将被新添加的容器所替换。
Merge Patch请求
{ "spec": { "template": { "spec": { "containers": [ { "name": "hello-world", "image": "busybox:latest" } ] } } } }Merge Patch响应
{ "kind": "ReplicationController", "apiVersion": "v1", "metadata": { "name": "frontend-controller", "namespace": "default", "selfLink": "/api/v1/namespaces/default/replicationcontrollers/nginx-controller", "uid": "549b2234-5d46-11e6-aeb9-286ed488fafe", "resourceVersion": "4159", "generation": 2, "creationTimestamp": "2016-08-08T08:58:52Z", "labels": { "app": "nginx" } }, "spec": { "replicas": 2, "selector": { "app": "nginx" }, "template": { "metadata": { "creationTimestamp": null, "labels": { "app": "nginx" } }, "spec": { "containers": [ { "name": "hello-world", "image": "busybox:latest", "resources": {}, "terminationMessagePath": "/dev/termination-log", "imagePullPolicy": "Always" } ], "restartPolicy": "Always", "dnsPolicy": "ClusterFirst", "securityContext": {} } } }, "status": { "replicas": 2, "fullyLabeledReplicas": 2, "observedGeneration": 1 } }其中“containers”参数列表被新添加的内容所替换。
- 而使用“Strategic Merge Patch”类型操作，是添加元数据到资源对象中，并通过这些新元数据来决定各个列表是否需要被合并。
Strategic Merge Patch请求
{ "spec": { "template": { "spec": { "containers": [ { "name": "hello-world", "image": "busybox:latest" } ] } } } }Strategic Merge Patch响应
{ "kind": "ReplicationController", "apiVersion": "v1", "metadata": { "name": "frontend-controller", "namespace": "default", "selfLink": "/api/v1/namespaces/default/replicationcontrollers/nginx-controller", "uid": "f2e048bb-5d46-11e6-aeb9-286ed488fafe", "resourceVersion": "4250", "generation": 2, "creationTimestamp": "2016-08-08T09:03:18Z", "labels": { "app": "nginx" } }, "spec": { "replicas": 2, "selector": { "app": "nginx" }, "template": { "metadata": { "creationTimestamp": null, "labels": { "app": "nginx" } }, "spec": { "containers": [ { "name": "redis", "image": "redis:latest", "ports": [ { "containerPort": 80, "protocol": "TCP" } ], "resources": {}, "terminationMessagePath": "/dev/termination-log", "imagePullPolicy": "Always" }, { "name": "hello-world", "image": "busybox:latest", "resources": {}, "terminationMessagePath": "/dev/termination-log", "imagePullPolicy": "Always" } ], "restartPolicy": "Always", "dnsPolicy": "ClusterFirst", "securityContext": {} } } }, "status": { "replicas": 2, "fullyLabeledReplicas": 2, "observedGeneration": 1 } }其中“containers”参数列表与新添加的内容合并，而不是替换，合并的依据为“name”域的值。
父主题： 附录
