{"id":35909,"date":"2022-11-21T06:03:08","date_gmt":"2023-07-09T07:39:12","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8keycloak%e7%9a%84oidc%e8%ba%ab%e4%bb%bd%e9%aa%8c%e8%af%81%ef%bc%8c%e5%9c%a8kubernetes%e4%b8%8a%e5%ae%9e%e7%8e%b0%e7%a7%9f%e6%88%b7%e6%8e%a7%e5%88%b6%e3%80%82\/"},"modified":"2024-04-29T01:45:36","modified_gmt":"2024-04-28T17:45:36","slug":"%e4%bd%bf%e7%94%a8keycloak%e7%9a%84oidc%e8%ba%ab%e4%bb%bd%e9%aa%8c%e8%af%81%ef%bc%8c%e5%9c%a8kubernetes%e4%b8%8a%e5%ae%9e%e7%8e%b0%e7%a7%9f%e6%88%b7%e6%8e%a7%e5%88%b6%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8keycloak%e7%9a%84oidc%e8%ba%ab%e4%bb%bd%e9%aa%8c%e8%af%81%ef%bc%8c%e5%9c%a8kubernetes%e4%b8%8a%e5%ae%9e%e7%8e%b0%e7%a7%9f%e6%88%b7%e6%8e%a7%e5%88%b6%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Keycloak\u7684OIDC\u8eab\u4efd\u9a8c\u8bc1\uff0c\u5728Kubernetes\u4e0a\u5b9e\u73b0\u79df\u6237\u63a7\u5236"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u203b\u672c\u8a18\u4e8b\u306f\u524d\u56de\u6295\u7a3f\u3057\u305f\u300cKeycloak\u306b\u3088\u308bKubernetes\u306eOIDC\u8a8d\u8a3c\u3092\u8a66\u3059\u300d\u3068\u3044\u3046\u8a18\u4e8b\u306e\u7d9a\u304d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u901a\u8fc7\u5728Keycloak\u4e2d\u521b\u5efa\u7684\u7ec4\uff0c\u4e3aKubernetes\u7684\u7279\u5b9aNamespace\u6388\u4e88\u64cd\u4f5c\u6743\u9650\uff0c\u5b9e\u73b0\u79df\u6237\u63a7\u5236\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d262c37434c4406c36833\/3-0.png\" alt=\"pic29.png\" \/><\/div>\n<h2>Keycloak\u306e\u8a2d\u5b9a<\/h2>\n<p>Keycloak\u306eAdministration Console\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u3068\u30b0\u30eb\u30fc\u30d7\u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n<h3>\u521b\u5efa\u7fa4\u7ec4<\/h3>\n<p>group-a\u3001group-b\u3068\u3044\u3046\u30b0\u30eb\u30fc\u30d7\u3092\u305d\u308c\u305e\u308c\u4f5c\u6210\u3059\u308b\u3002<\/p>\n<p>group-a: Kubernetes\u30af\u30e9\u30b9\u30bf\u30fc\u306eNamespace=tenant-a\uff08\u5f8c\u7a0b\u4f5c\u6210\uff09\u306b\u5bfe\u3057\u3066\u7ba1\u7406\u8005\u6a29\u9650\u3092\u6301\u3064\u30b0\u30eb\u30fc\u30d7<\/p>\n<p>group-b: Kubernetes\u30af\u30e9\u30b9\u30bf\u30fc\u306eNamespace=tenant-b\uff08\u5f8c\u7a0b\u4f5c\u6210\uff09\u306b\u5bfe\u3057\u3066\u7ba1\u7406\u8005\u6a29\u9650\u3092\u6301\u3064\u30b0\u30eb\u30fc\u30d7<\/p>\n<p>\u5c3d\u7ba1\u622a\u56fe\u4e2d\u53ea\u663e\u793a\u4e86\u521b\u5efagroup-a, \u4f46\u540c\u6837\u8981\u521b\u5efagroup-b\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d262c37434c4406c36833\/10-1.png\" alt=\"pic31.png\" \/><\/div>\n<h3>\u30e6\u30fc\u30b6\u30fc\u306e\u4f5c\u6210<\/h3>\n<p>\u521b\u5efa\u7528\u6237A\u548c\u7528\u6237B\u3002<\/p>\n<p>user-a: group-a\u30b0\u30eb\u30fc\u30d7\u306b\u6240\u5c5e<\/p>\n<p>user-b: group-b\u30b0\u30eb\u30fc\u30d7\u306b\u6240\u5c5e<\/p>\n<p>\u203b\u30ad\u30e3\u30d7\u30c1\u30e3\u3067\u306fuser-a\u306e\u4f5c\u6210\u3057\u304b\u793a\u3057\u3066\u3044\u306a\u3044\u304cuser-b\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u306b\u4f5c\u6210\u3059\u308b\u3002<br \/>\n\u203b\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u4efb\u610f\u306e\u5024\u3092\u8a2d\u5b9a\uff08\u3053\u3053\u3067\u306fP@ssw0rd\u3068\u3044\u3046\u5024\u3092\u8a2d\u5b9a\u3057\u305f\uff09<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d262c37434c4406c36833\/15-2.png\" alt=\"pic34.png\" \/><\/div>\n<h2>Kubernetes\u30af\u30e9\u30b9\u30bf\u30fc\u306e\u8a2d\u5b9a<\/h2>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u7684manifest\u6587\u4ef6\u521b\u5efaNamespace\u3001Role\u548cRoleBinding\u3002<br \/>\n* \u4ec5\u7531\u5177\u6709Cluster-Role=cluster-admin\u7b49\u6548\u6743\u9650\u7684\u7528\u6237\u521b\u5efa\u8d44\u6e90\u3002<\/p>\n<p>\u79df\u6237-\u7532.yaml<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Namespace<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">v1<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-a<\/span>\r\n<span class=\"nn\">---<\/span>\r\n<span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Role<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io\/v1<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-a<\/span>\r\n  <span class=\"na\">namespace<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-a<\/span>\r\n<span class=\"na\">rules<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">apiGroups<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s1\">'<\/span><span class=\"s\">*'<\/span>\r\n  <span class=\"na\">resources<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s1\">'<\/span><span class=\"s\">*'<\/span>\r\n  <span class=\"na\">verbs<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s1\">'<\/span><span class=\"s\">*'<\/span>\r\n<span class=\"nn\">---<\/span>\r\n<span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">RoleBinding<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io\/v1<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-a-rb<\/span>\r\n  <span class=\"na\">namespace<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-a<\/span>\r\n<span class=\"na\">roleRef<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">apiGroup<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io<\/span>\r\n  <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Role<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-a<\/span>\r\n<span class=\"na\">subjects<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Group<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">group-a\"<\/span>\r\n  <span class=\"na\">apiGroup<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io<\/span>\r\n<\/code><\/pre>\n<p>\u79df\u6237-b.yaml<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Namespace<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">v1<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-b<\/span>\r\n<span class=\"nn\">---<\/span>\r\n<span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Role<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io\/v1<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-b<\/span>\r\n  <span class=\"na\">namespace<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-b<\/span>\r\n<span class=\"na\">rules<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">apiGroups<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s1\">'<\/span><span class=\"s\">*'<\/span>\r\n  <span class=\"na\">resources<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s1\">'<\/span><span class=\"s\">*'<\/span>\r\n  <span class=\"na\">verbs<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s1\">'<\/span><span class=\"s\">*'<\/span>\r\n<span class=\"nn\">---<\/span>\r\n<span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">RoleBinding<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io\/v1<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-b-rb<\/span>\r\n  <span class=\"na\">namespace<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-b<\/span>\r\n<span class=\"na\">roleRef<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">apiGroup<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io<\/span>\r\n  <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Role<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tenant-b<\/span>\r\n<span class=\"na\">subjects<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Group<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">group-b\"<\/span>\r\n  <span class=\"na\">apiGroup<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rbac.authorization.k8s.io<\/span>\r\n<\/code><\/pre>\n<p>\u30ea\u30bd\u30fc\u30b9\u306e\u4f5c\u6210<\/p>\n<pre class=\"post-pre\"><code># kubectl apply -f tenant-a.yaml\r\nnamespace\/tenant-a created\r\nrole.rbac.authorization.k8s.io\/tenant-a created\r\nrolebinding.rbac.authorization.k8s.io\/tenant-a-rb created\r\n\r\n# kubectl apply -f tenant-b.yaml\r\nnamespace\/tenant-b created\r\nrole.rbac.authorization.k8s.io\/tenant-b created\r\nrolebinding.rbac.authorization.k8s.io\/tenant-b-rb created\r\n<\/code><\/pre>\n<h2>\u786e\u8ba4\u52a8\u4f5c<\/h2>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u6b63\u5728\u5bf9\u7528\u6237A\u8fdb\u884c\u64cd\u4f5c\u786e\u8ba4\uff0c\u4f46\u662f\u5bf9\u4e8e\u7528\u6237B\u4e5f\u662f\u4e00\u6837\u7684\u3002<\/p>\n<h3>\u786e\u8ba4<\/h3>\n<p>\u4ee5\u4e2d\u6587\u5c06\u4ee5\u4e0b\u5185\u5bb9\u7ffb\u8bd1\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a<br \/>\n\u901a\u8fc7\u7528\u6237A\uff0c\u8be5\u7528\u6237\u5c5e\u4e8eA\u7ec4\uff0c\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\uff0c\u5e76\u83b7\u53d6\u8eab\u4efd\u4ee4\u724c\u548c\u5237\u65b0\u4ee4\u724c\u3002<\/p>\n<pre class=\"post-pre\"><code># curl -k -d \"grant_type=password\" -d \"scope=openid\" -d \"client_id=kubernetes\" -d \"client_secret=&lt;client=kubernetes\u306esecret&gt;\" -d \"username=user-a\" -d \"password=&lt;Keycloak\u3067\u4f5c\u6210\u3057\u305fuser-a\u306e\u30d1\u30b9\u30ef\u30fc\u30c9&gt;\" https:\/\/keycloak.example.com:32084\/realms\/kubernetes\/protocol\/openid-connect\/token | jq .\r\n<\/code><\/pre>\n<p>\u53d6\u5f97\u3057\u305fid-token\u3068refresh-token\u3092\u7528\u3044\u3066kubeconfig\u306e\u8a2d\u5b9a\u3092\u884c\u3046\u3002<\/p>\n<pre class=\"post-pre\"><code># kubectl config set-credentials user-a \\\r\n    \"--auth-provider=oidc\" \\\r\n    \"--auth-provider-arg=idp-issuer-url=https:\/\/keycloak.example.com:32084\/realms\/kubernetes\" \\\r\n    \"--auth-provider-arg=client-id=kubernetes\" \\\r\n    \"--auth-provider-arg=idp-certificate-authority=&lt;keycloak\u516c\u958b\u9375\u306e\u30d1\u30b9&gt;\" \\\r\n    \"--auth-provider-arg=client-secret=&lt;client=kubernetes\u306esecret&gt;\" \\\r\n    \"--auth-provider-arg=id-token=&lt;id-token&gt;\" \\\r\n    \"--auth-provider-arg=refresh-token=&lt;refresh-token&gt;\"\r\n    \r\n# kubectl config set-context user-a@&lt;kubeconfig\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308bk8s\u30af\u30e9\u30b9\u30bf\u540d&gt; --cluster=&lt;kubeconfig\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308bk8s\u30af\u30e9\u30b9\u30bf\u540d&gt; --user=user-a\r\n\r\n# kubectl config use-context user-a@&lt;kubeconfig\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308bk8s\u30af\u30e9\u30b9\u30bf\u540d&gt;\r\nSwitched to context \"user-a@&lt;kubeconfig\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308bk8s\u30af\u30e9\u30b9\u30bf\u540d&gt;\".\r\n<\/code><\/pre>\n<h3>\u30af\u30e9\u30b9\u30bf\u30fc\u30a2\u30af\u30bb\u30b9<\/h3>\n<p>\u786e\u8ba4\u7528\u6237A\u80fd\u591f\u8bbf\u95eeNamespace=tenant-a\uff0c\u5e76\u4e14\u80fd\u591f\u6267\u884c\u5404\u79cd\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code>tenant-a\u306bPod\u306e\u4f5c\u6210\r\n# kubectl run nginx-a --image=nginx --restart=Never -n tenant-a\r\npod\/nginx-a created\r\n\r\ntenant-a\u306e\u30ea\u30bd\u30fc\u30b9\u53c2\u7167\r\n# kubectl get all -n tenant-a\r\nNAME          READY   STATUS    RESTARTS   AGE\r\npod\/nginx-a   1\/1     Running   0          87m\r\n<\/code><\/pre>\n<p>user-a\u3067Namespace=tenant-b\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001\u8af8\u3005\u306e\u64cd\u4f5c\u304c\u884c\u3048\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3002<\/p>\n<pre class=\"post-pre\"><code># kubectl get all -n tenant-b\r\nError from server (Forbidden): pods is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"pods\" in API group \"\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): replicationcontrollers is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"replicationcontrollers\" in API group \"\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): services is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"services\" in API group \"\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): daemonsets.apps is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"daemonsets\" in API group \"apps\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): deployments.apps is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"deployments\" in API group \"apps\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): replicasets.apps is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"replicasets\" in API group \"apps\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): statefulsets.apps is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"statefulsets\" in API group \"apps\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): horizontalpodautoscalers.autoscaling is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"horizontalpodautoscalers\" in API group \"autoscaling\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): cronjobs.batch is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"cronjobs\" in API group \"batch\" in the namespace \"tenant-b\"\r\nError from server (Forbidden): jobs.batch is forbidden: User \"https:\/\/keycloak.example.com:32084\/realms\/kubernetes#a user\" cannot list resource \"jobs\" in API group \"batch\" in the namespace \"tenant-b\"\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u5e7f\u544a<\/h2>\n<p>\u6211\u5728\u4f7f\u7528Twitter\u3002<br \/>\n\u5982\u679c\u4f60\u613f\u610f\u7684\u8bdd\uff0c\u80fd\u591f\u5173\u6ce8\u6211\u5c31\u5f88\u5f00\u5fc3\u4e86\u3002<\/p>\n<p>@mochizuki875<br \/>\n\u6211\u60f3\u6210\u4e3a\u4e00\u540d\u4e13\u4e1a\u7684IT\u5de5\u7a0b\u5e08\uff0c\u559c\u6b22Kubernetes\u3002<br \/>\n\u4e00\u53ea\u72d0\u72f8\uff0c\u4e0d\u662f\u72f8\u72d7\u3002<br \/>\n<a 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