{"id":58309,"date":"2023-01-20T10:00:17","date_gmt":"2023-01-20T01:00:17","guid":{"rendered":"https:\/\/www.creationline.com\/?p=58309"},"modified":"2023-03-30T11:14:59","modified_gmt":"2023-03-30T02:14:59","slug":"%e9%80%a3%e8%bc%89-kubernetes%e3%81%a7%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%82%b3%e3%83%b3%e3%83%88%e3%83%ad%e3%83%bc%e3%83%a9%e3%82%92%e4%bd%9c%e3%82%8d%e3%81%86%ef%bc%81-%ef%bd%9e%e7%ac%ac4","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309","title":{"rendered":"\u9023\u8f09: Kubernetes\u3067\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u308d\u3046\uff01 \uff5e\u7b2c4\u56de Kubernetes\u306e\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\uff5e"},"content":{"rendered":"

\u524d\u56de<\/a>\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306aKubernetes\u30ea\u30bd\u30fc\u30b9\u3092API\u3092\u901a\u3058\u3066\u64cd\u4f5c\u3057\u307e\u3057\u305f\u3002 Kubernetes\u306b\u306fAPI\u3092\u62e1\u5f35\u3059\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308a\u3001\u305d\u306e\u4e00\u3064\u3068\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002 \u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306fCustomResourceDefinition\u30ea\u30bd\u30fc\u30b9\u3092\u901a\u3058\u3066\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002 \u5b9a\u7fa9\u3055\u308c\u305f\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306f\u3001\u901a\u5e38\u306eKubernetes\u306eDeployment\u3084StatefulSet\u306a\u3069\u3068\u540c\u3058\u3088\u3046\u306a\u30ea\u30bd\u30fc\u30b9\u3068\u3057\u3066\u30e6\u30fc\u30b6\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002 \u4eca\u56de\u306f\u3001\u3053\u306e\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u89e6\u308c\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9<\/h2>\n

\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306fCustomResourceDefinition\u30ea\u30bd\u30fc\u30b9\u306b\u3088\u308a\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002 \u4f5c\u6210\u3055\u308c\u305f\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u5bfe\u3057\u3066\u306f\u3001\u524d\u56de<\/a>\u307e\u3067\u3067\u5b9f\u65bd\u3057\u305f\u3088\u3046\u306aAPI\u306b\u3088\u308b\u64cd\u4f5c\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002 \u3053\u306eCustomResourceDefinition\u306f\u3001kubebuilder\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308bcontroller-tools<\/a>\u3092\u5229\u7528\u3059\u308b\u3068\u3001Go\u306e\u30b3\u30fc\u30c9\u304b\u3089\u81ea\u52d5\u751f\u6210\u3067\u304d\u308b\u305f\u3081\u3001\u305d\u3046\u3044\u3063\u305f\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30bc\u30ed\u304b\u3089\u8a18\u8ff0\u3059\u308b\u6a5f\u4f1a\u306f\u5c11\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 \u3057\u304b\u3057\u3001\u305d\u3053\u3067\u81ea\u52d5\u751f\u6210\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u304c\u3069\u3046\u3044\u3046\u3082\u306e\u304b\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u306f\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u4ee5\u4e0b\u306fCustomResourceDefinition\u306e\u4f8b\u3067\u3059\u3002 \u3053\u3053\u3067\u306fPod\u3092\u7c21\u6613\u5316\u3057\u305fSimplePod\u30ea\u30bd\u30fc\u30b9\u3092\u5b9a\u7fa9\u3057\u305f\u4f8b\u3067\u3059\u3002 SimplePod\u306f\u305f\u3063\u305f2\u3064\u3060\u3051\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6301\u3061\u307e\u3059\u3002.spec.image<\/strong>\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30b3\u30f3\u30c6\u30ca\u306e\u30a4\u30e1\u30fc\u30b8\u540d\u3001.spec.name<\/strong>\u306b\u30b3\u30f3\u30c6\u30ca\u540d\u3092\u5b9a\u7fa9\u3059\u308b\u3082\u306e\u3068\u3057\u307e\u3057\u305f\u3002<\/p>\n

# crd.yaml<\/span>\r\napiVersion:<\/span> apiextensions.k8s.io\/v1\r\nkind:<\/span> CustomResourceDefinition\r\nmetadata:<\/span>\r\n  name:<\/span> simplepods.example.creationline.com\r\nspec:<\/span>\r\n  group:<\/span> example.creationline.com\r\n  scope:<\/span> Namespaced\r\n  names:<\/span>\r\n    plural:<\/span> simplepods\r\n    singular:<\/span> simplepod\r\n    kind:<\/span> SimplePod\r\n  versions:<\/span>\r\n  - name:<\/span> v1\r\n    served:<\/span> true<\/span>\r\n    storage:<\/span> true<\/span>\r\n    schema:<\/span>\r\n      openAPIV3Schema:<\/span>\r\n        type:<\/span> object\r\n        properties:<\/span>\r\n          spec:<\/span>\r\n            type:<\/span> object\r\n            properties:<\/span>\r\n              image:<\/span>\r\n                type:<\/span> string\r\n                description:<\/span> container image name\r\n              name:<\/span>\r\n                type:<\/span> string\r\n                description:<\/span> container name\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u306eYAML\u3092crd.yaml<\/strong>\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u4fdd\u5b58\u3057\u3066\u5b9f\u969b\u306b\u30af\u30e9\u30b9\u30bf\u306b\u9069\u7528\u3057\u3001\u30af\u30e9\u30b9\u30bf\u3067SimplePod\u304c\u5229\u7528\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n
$ kubectl apply -f crd.yaml\r\ncustomresourcedefinition.apiextensions.k8s.io\/simplepods.example.creationline.com created\r\n\r\n# simplepod\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/span>\r\n$ kubectl explain simplepod\r\nKIND:<\/span>     SimplePod\r\nVERSION:<\/span>  example.creationline.com\/v1\r\n\r\nDESCRIPTION:<\/span>\r\n     <empty>\r\n\r\n<\/span>FIELDS:<\/span>\r\n   apiVersion    <string>\r\n     APIVersion defines the versioned schema of this representation of an\r\n     object. Servers should convert recognized schemas to the latest internal\r\n     value, and may reject unrecognized values. More info:\r\n<\/span>     https:<\/span>\/\/git.k8s.io\/community\/contributors\/devel\/sig-architecture\/api-conventions.md#resources<\/span>\r\n\r\n   kind    <string>\r\n     Kind is a string value representing the REST resource this object\r\n     represents. Servers may infer this from the endpoint the client submits\r\n     requests to. Cannot be updated. In CamelCase. More info:\r\n<\/span>     https:<\/span>\/\/git.k8s.io\/community\/contributors\/devel\/sig-architecture\/api-conventions.md#types-kinds<\/span>\r\n\r\n   metadata    <Object>\r\n     Standard object's metadata. More info:\r\n<\/span>     https:<\/span>\/\/git.k8s.io\/community\/contributors\/devel\/sig-architecture\/api-conventions.md#metadata<\/span>\r\n\r\n   spec    <Object>\r\n\r\n# spec\u5185\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\r\n$ kubectl explain simplepod.spec\r\n<\/span>KIND:<\/span>     SimplePod\r\nVERSION:<\/span>  example.creationline.com\/v1\r\n\r\nRESOURCE:<\/span> spec <Object>\r\n\r\n<\/span>DESCRIPTION:<\/span>\r\n     <empty>\r\n\r\n<\/span>FIELDS:<\/span>\r\n   image    <string>\r\n     container image name\r\n\r\n   name    <string>\r\n     container name<\/span>\r\n<\/code><\/pre>\n
\u30af\u30e9\u30b9\u30bf\u306bSimplePod\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002 \u3067\u306f\u5b9f\u969b\u306bSimplePod\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u4ee5\u4e0b\u306e\u30de\u30cb\u30d5\u30a7\u30b9\u30c8\u3092\u30af\u30e9\u30b9\u30bf\u9069\u7528\u3057pod1<\/strong>\u3068\u3044\u3046\u540d\u524d\u306eSimplePod\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
apiVersion:<\/span> example.creationline.com\/v1\r\nkind:<\/span> SimplePod\r\nmetadata:<\/span>\r\n  name:<\/span> pod1\r\n  namespace:<\/span> default\r\nspec:<\/span>\r\n  name:<\/span> nginx\r\n  image:<\/span> nginx\r\n<\/code><\/pre>\n
\u5b9f\u969b\u306b\u4f5c\u6210\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n
$ kubectl apply -f pod1.yaml<\/span>\r\nsimplepod.example<\/span>.creationline<\/span>.com<\/span>\/pod1 created\r\n<\/code><\/pre>\n
$ kubectl get<\/span> simplepod\r\nNAME   AGE\r\npod1   17s\r\n\r\n$ kubectl get<\/span> simplepod pod1 -oyaml\r\napiVersion: example<\/span>.creationline.com\/v1\r\nkind: SimplePod\r\nmetadata:\r\n  annotations:\r\n    kubectl.kubernetes.io\/last<\/span>-applied-configuration: |\r\n      {\"apiVersion\"<\/span>:\"example.creationline.com\/v1\"<\/span>,\"kind\"<\/span>:\"SimplePod\"<\/span>,\"metadata\"<\/span>:{\"annotations\"<\/span>:{},\"name\"<\/span>:\"pod1\"<\/span>,\"namespace\"<\/span>:\"default\"<\/span>},\"spec\"<\/span>:{\"image\"<\/span>:\"nginx\"<\/span>,\"name\"<\/span>:\"nginx\"<\/span>}}\r\n  creationTimestamp: \"2023-01-15T16:43:35Z\"<\/span>\r\n  generation: 1<\/span>\r\n  name: pod1\r\n  namespace: default\r\n  resourceVersion: \"38333\"<\/span>\r\n  uid: ab155898-5cf3-4b36<\/span>-9d5d-3a7540109e9b\r\nspec:\r\n  image<\/span>: nginx\r\n  name: nginx\r\n<\/code><\/pre>\n
\u30de\u30cb\u30d5\u30a7\u30b9\u30c8\u3067\u5b9a\u7fa9\u3057\u305f\u5185\u5bb9\u304c\u304d\u3061\u3093\u3068\u53cd\u6620\u3055\u308c\u3066\u3044\u307e\u3059:tada:<\/p>\n
\u30d5\u30a3\u30fc\u30eb\u30c9\u306eValidation<\/h2>\n
CustomResourceDefinition\u3067\u306fOpenAPIV3Schema\u3092\u7528\u3044\u3066\u3001\u7c21\u5358\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306eValidation\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u5b9a\u7fa9\u5185\u3067\u5b9f\u65bd\u3067\u304d\u307e\u3059\u3002 \u4f8b\u3048\u3070\u5148\u307b\u3069\u306eSimplePod\u306e\u4f8b\u3067\u306fname<\/strong>\u3068image<\/strong>\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u5fc5\u9808\u3067\u3001\u304b\u3064name<\/strong>\u306ffoo-<\/strong>\u304b\u3089\u59cb\u307e\u3089\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3057\u307e\u3059\u3002 \u3053\u306eValidation\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n
apiVersion:<\/span> apiextensions.k8s.io\/v1\r\nkind:<\/span> CustomResourceDefinition\r\nmetadata:<\/span>\r\n  name:<\/span> simplepods.example.creationline.com\r\nspec:<\/span>\r\n  group:<\/span> example.creationline.com\r\n  scope:<\/span> Namespaced\r\n  names:<\/span>\r\n    plural:<\/span> simplepods\r\n    singular:<\/span> simplepod\r\n    kind:<\/span> SimplePod\r\n  versions:<\/span>\r\n  - name:<\/span> v1\r\n    served:<\/span> true<\/span>\r\n    storage:<\/span> true<\/span>\r\n    schema:<\/span>\r\n      openAPIV3Schema:<\/span>\r\n        type:<\/span> object\r\n        properties:<\/span>\r\n          spec:<\/span>\r\n            type:<\/span> object\r\n            required:<\/span> # \u5fc5\u9808\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u6307\u5b9a<\/span>\r\n            -<\/span> image\r\n            -<\/span> name\r\n            properties:<\/span>\r\n              image:<\/span>\r\n                type:<\/span> string\r\n                description:<\/span> container image name\r\n              name:<\/span>\r\n                type:<\/span> string\r\n                pattern:<\/span> ^foo- # \u8a31\u5bb9\u3059\u308b\u5024\u306e\u6307\u5b9a<\/span>\r\n                description:<\/span> container name\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u3092kubectl apply<\/strong>\u3067\u9069\u7528\u3059\u308b\u3068\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306bname<\/strong>\u3068image<\/strong>\u30d5\u30a3\u30fc\u30eb\u30c9\u304crequired\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
$ kubectl explain<\/span> simplepod.spec\r\nKIND:     SimplePod\r\nVERSION<\/span>:  example.creationline.com\/v1\r\n\r\nRESOURCE<\/span>: spec <Object<\/span>>\r\n\r\nDESCRIPTION:\r\n     <empty<\/span>>\r\n\r\nFIELDS<\/span>:\r\n   image    <string<\/span>> -required<\/span>-\r\n     container<\/span> image name<\/span>\r\n\r\n   name<\/span>    <string<\/span>> -required<\/span>-\r\n     container<\/span> name<\/span>\r\n\r\n# spec.name\u304cfoo- \u304b\u3089\u59cb\u307e\u3089\u306a\u3044\u30ea\u30bd\u30fc\u30b9\u306f\u4f5c\u6210\u3067\u304d\u306a\u3044\r\n$ cat <<EOF | kubectl apply<\/span> -f-\r\napiVersion: example.creationline.com\/v1\r\nkind: SimplePod\r\nmetadata:\r\n  name<\/span>: pod2\r\n  namespace: default<\/span>\r\nspec:\r\n  name<\/span>: nginx\r\n  image: nginx\r\nEOF\r\nThe SimplePod \"pod2\"<\/span> is<\/span> invalid: spec.name: Invalid value<\/span>: \"nginx\"<\/span>: spec.name in<\/span> body<\/span> should match<\/span> '^foo-'<\/span>\r\n\r\n# spec.name\u304cfoo- \u304b\u3089\u59cb\u307e\u3089\u306a\u3044\u30ea\u30bd\u30fc\u30b9\u306f\u4f5c\u6210\u3067\u304d\u308b\r\n$ cat <<EOF | kubectl apply<\/span> -f-\r\napiVersion: example.creationline.com\/v1\r\nkind: SimplePod\r\nmetadata:\r\n  name<\/span>: pod3\r\n  namespace: default<\/span>\r\nspec:\r\n  name<\/span>: foo-nginx\r\n  image: nginx\r\nEOF\r\nsimplepod.example.creationline.com\/pod3 created\r\n<\/code><\/pre>\n
\u305d\u308c\u4ee5\u5916\u306b\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u3092Validation\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u306fAdmission Webhook<\/a>\u3084Kubernetes v1.26\u4ee5\u964d\u3067\u3042\u308c\u3070\u3001Validating Admission Policy<\/a>\u306b\u3088\u308bValidation\u3082\u5b9f\u88c5\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u3092curl\u3067\u64cd\u4f5c\u3059\u308b<\/h2>\n
\u5192\u982d\u306b\u8efd\u304f\u8a18\u8f09\u3057\u307e\u3057\u305f\u304c\u3001\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u3082Kubernetes\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u30ea\u30bd\u30fc\u30b9\u3068\u540c\u3058\u3088\u3046\u306bAPI\u3092\u7528\u3044\u3066\u64cd\u4f5c\u53ef\u80fd\u3067\u3059\u3002 \u4eca\u56de\u4f5c\u6210\u3057\u305fSimplePod\u306f.spec.scope<\/strong>\u304cNamespaced<\/strong>\u3068\u3057\u3066\u4f5c\u6210\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u5834\u5408\u30cd\u30fc\u30e0\u30b9\u30da\u30fc\u30b9\u6bce\u306bSimplePod\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002 \u5148\u307b\u3069\u306e\u4f5c\u6210\u3057\u305fpod1<\/strong>\u306fdefault<\/strong>\u30cd\u30fc\u30e0\u30b9\u30da\u30fc\u30b9\u306b\u4f5c\u6210\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u30ea\u30bd\u30fc\u30b9\u3092curl\u3092\u7528\u3044\u3066GET\u3057\u307e\u3057\u3087\u3046\u3002 \u524d\u56de<\/a>\u3068\u540c\u69d8\u306b\u3001curl\u3092\u7528\u3044\u3066\u64cd\u4f5c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
$ <\/span>kubectl proxy\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u305f\u307e\u307e\u5225\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u30ea\u30bd\u30fc\u30b9\u3068\u540c\u69d8\u306bAPI\u3078\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002 \u30cd\u30a4\u30c6\u30a3\u30d6\u30ea\u30bd\u30fc\u30b9\u3068\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30d1\u30b9\u306e\u30eb\u30fc\u30eb\u306f\u5909\u308f\u304b\u3089\u305a\/apis\/GROUP\u540d\/VESRION\/namespaces\/NAMESPACE\u540d<\/strong>\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n
$ curl http:\/\/localhost:8001<\/span>\/apis\/example.creationline.com\/v1\/namespaces\/default<\/span>\/simplepods\/pod1\r\n{\r\n  \"apiVersion\"<\/span>: \"example.creationline.com\/v1\"<\/span>,\r\n  \"kind\"<\/span>: \"SimplePod\"<\/span>,\r\n  \"metadata\"<\/span>: {\r\n    \"annotations\"<\/span>: {\r\n      \"kubectl.kubernetes.io\/last-applied-configuration\"<\/span>: \"{\\\"<\/span>apiVersion\\\":\\\"<\/span>example.creationline.com\/v1\\\",\\\"<\/span>kind\\\":\\\"<\/span>SimplePod\\\",\\\"<\/span>metadata\\\":{\\\"<\/span>annotations\\\":{},\\\"<\/span>name\\\":\\\"<\/span>pod1\\\",\\\"<\/span>namespace\\\":\\\"<\/span>default\\\"},\\\"<\/span>spec\\\":{\\\"<\/span>image\\\":\\\"<\/span>nginx\\\",\\\"<\/span>name\\\":\\\"<\/span>nginx\\\"}}\\n\"<\/span>\r\n    },\r\n    \"creationTimestamp\"<\/span>: \"2023-01-15T16:45:10Z\"<\/span>,\r\n    \"generation\"<\/span>: 1<\/span>,\r\n    \"managedFields\"<\/span>: [\r\n      {\r\n        \"apiVersion\"<\/span>: \"example.creationline.com\/v1\"<\/span>,\r\n        \"fieldsType\"<\/span>: \"FieldsV1\"<\/span>,\r\n        \"fieldsV1\"<\/span>: {\r\n          \"f:metadata\"<\/span>: {\r\n            \"f:annotations\"<\/span>: {\r\n              \".\"<\/span>: {},\r\n              \"f:kubectl.kubernetes.io\/last-applied-configuration\"<\/span>: {}\r\n            }\r\n          },\r\n          \"f:spec\"<\/span>: {\r\n            \".\"<\/span>: {},\r\n            \"f:image\"<\/span>: {},\r\n            \"f:name\"<\/span>: {}\r\n          }\r\n        },\r\n        \"manager\"<\/span>: \"kubectl-client-side-apply\"<\/span>,\r\n        \"operation\"<\/span>: \"Update\"<\/span>,\r\n        \"time\"<\/span>: \"2023-01-15T16:45:10Z\"<\/span>\r\n      }\r\n    ],\r\n    \"name\"<\/span>: \"pod1\"<\/span>,\r\n    \"namespace\"<\/span>: \"default\"<\/span>,\r\n    \"resourceVersion\"<\/span>: \"38449\"<\/span>,\r\n    \"uid\"<\/span>: \"4d7e8d06-b0eb-459b-8d38-64ef83e6a20b\"<\/span>\r\n  },\r\n  \"spec\"<\/span>: {\r\n    \"image\"<\/span>: \"nginx\"<\/span>,\r\n    \"name\"<\/span>: \"nginx\"<\/span>\r\n  }\r\n}\r\n<\/code><\/pre>\n
\u30cd\u30a4\u30c6\u30a3\u30d6\u30ea\u30bd\u30fc\u30b9\u3068\u540c\u69d8\u306bGET\u304c\u3067\u304d\u307e\u3057\u305f!<\/p>\n
\u6700\u5f8c\u306b<\/h2>\n
CustomResourceDifinition\u3092\u7528\u3044\u3066\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u3092\u5b66\u3073\u307e\u3057\u305f\u3002 \u305d\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u3082\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u30ea\u30bd\u30fc\u30b9\u3068\u540c\u69d8\u306b\u64cd\u4f5c\u3067\u304d\u308b\u3053\u3068\u3082\u5b66\u3073\u307e\u3057\u305f\u3002 \u4eca\u56de\u306f\u76f4\u63a5CustomResourceDifinition\u3092\u8a18\u8ff0\u3057\u307e\u3057\u305f\u304c\u3001kubebuilder\u30fbcontroller-tools\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u3053\u308c\u3089\u306e\u5b9a\u7fa9\u306f\u81ea\u52d5\u751f\u6210\u3067\u304d\u307e\u3059\u3002 \u3053\u308c\u3089\u3092\u4f7f\u3063\u305f\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u3064\u3044\u3066\u306f\u4eca\u5f8c\u8aac\u660e\u3092\u9032\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3\u3067\u306fKubernetes\u306b\u95a2\u3059\u308b\u69d8\u3005\u306a\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u307e\u3059\u3002 \u8a73\u3057\u304f\u306f\u3053\u3061\u3089<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u307e\u305f\u3001\u3053\u306e\u9023\u8f09\u306e\u66f4\u65b0\u901a\u77e5\u3092\u53d7\u3051\u53d6\u308a\u305f\u3044\u65b9\u306f\u3001Twitter\u30a2\u30ab\u30a6\u30f3\u30c8<\/a>\u306e\u30d5\u30a9\u30ed\u30fc\u3084\u3001\u3053\u306e\u30da\u30fc\u30b8\u4e0b\u90e8\u306b\u30ea\u30f3\u30af\u306e\u3042\u308bCL LAB MAIL MAGAZINE\u3078\u306e\u767b\u9332\u3092\u305c\u3072\u304a\u9858\u3044\u3057\u307e\u3059\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u524d\u56de\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306aKubernetes\u30ea\u30bd\u30fc\u30b9\u3092API\u3092\u901a\u3058\u3066\u64cd\u4f5c\u3057\u307e\u3057\u305f\u3002 Kubernetes\u306b\u306fAPI\u3092\u62e1\u5f35\u3059\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308a\u3001\u305d\u306e\u4e00\u3064\u3068\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002 \u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306fCustomResourc […]<\/p>\n","protected":false},"author":82,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[43,122],"tags":[],"class_list":["post-58309","post","type-post","status-publish","format-standard","hentry","category-docker","category-kubernetes"],"acf":[],"yoast_head":"\n\u9023\u8f09: Kubernetes\u3067\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u308d\u3046\uff01 \uff5e\u7b2c4\u56de Kubernetes\u306e\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\uff5e - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3<\/title>\n<meta name=\"description\" content=\"Docker, Kubernetes |\u524d\u56de\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306aKubernetes\u30ea\u30bd\u30fc\u30b9\u3092API\u3092\u901a\u3058\u3066\u64cd\u4f5c\u3057\u307e\u3057\u305f\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u9023\u8f09: Kubernetes\u3067\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u308d\u3046\uff01 \uff5e\u7b2c4\u56de Kubernetes\u306e\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\uff5e - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3\" \/>\n<meta property=\"og:description\" content=\"Docker, Kubernetes |\u524d\u56de\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306aKubernetes\u30ea\u30bd\u30fc\u30b9\u3092API\u3092\u901a\u3058\u3066\u64cd\u4f5c\u3057\u307e\u3057\u305f\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309\" \/>\n<meta property=\"og:site_name\" content=\"Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/creationline\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-20T01:00:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-03-30T02:14:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2026\/01\/screenshot.png\" \/>\n\t<meta property=\"og:image:width\" content=\"470\" \/>\n\t<meta property=\"og:image:height\" content=\"394\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"S U\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@creationline\" \/>\n<meta name=\"twitter:site\" content=\"@creationline\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"S U\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"4\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309\"},\"author\":{\"name\":\"S U\",\"@id\":\"https:\/\/www.creationline.com\/tech-blog\/#\/schema\/person\/dca14cb27ff34414424ff487a8cae4aa\"},\"headline\":\"\u9023\u8f09: Kubernetes\u3067\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u308d\u3046\uff01 \uff5e\u7b2c4\u56de Kubernetes\u306e\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\uff5e\",\"datePublished\":\"2023-01-20T01:00:17+00:00\",\"dateModified\":\"2023-03-30T02:14:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309\"},\"wordCount\":124,\"articleSection\":[\"Docker\",\"Kubernetes\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309\",\"url\":\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/58309\",\"name\":\"\u9023\u8f09: Kubernetes\u3067\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u308d\u3046\uff01 \uff5e\u7b2c4\u56de Kubernetes\u306e\u30ab\u30b9\u30bf\u30e0\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\uff5e - 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Kubernetes v1.23\u4ee5\u964d\u3067\u3042\u308c\u3070CEL(Common Expression Language)<\/a>\u3092\u7528\u3044\u305fValidation\u3082\u53ef\u80fd\u3067\u3059\u3002 \u3053\u3061\u3089\u306fv1.25\u304b\u3089\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u6709\u52b9\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u308c\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306fCustomResourceValidationExpressions<\/strong> FeatureGates\u3092\u6709\u52b9\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u8a73\u7d30\u306f\u3053\u3061\u3089<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n
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