{"id":2107,"date":"2021-12-16T17:02:25","date_gmt":"2021-12-16T09:02:25","guid":{"rendered":"https:\/\/199604.com\/?p=2107"},"modified":"2021-12-16T17:02:25","modified_gmt":"2021-12-16T09:02:25","slug":"kubernetes%e5%ad%a6%e4%b9%a0%e6%89%8b%e6%9c%ad-%e5%ae%89%e5%85%a8%e8%ae%a4%e8%af%81","status":"publish","type":"post","link":"https:\/\/199604.com\/2107","title":{"rendered":"Kubernetes\u5b66\u4e60\u624b\u672d-\u5b89\u5168\u8ba4\u8bc1"},"content":{"rendered":"<h1>Kubernetes\u5b66\u4e60\u624b\u672d-\u5b89\u5168\u8ba4\u8bc1<\/h1>\n<h2>9.1 \u8bbf\u95ee\u63a7\u5236\u6982\u8ff0<\/h2>\n<p>Kubernetes\u4f5c\u4e3a\u4e00\u4e2a\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u7ba1\u7406\u5de5\u5177\uff0c\u4fdd\u8bc1\u96c6\u7fa4\u7684\u5b89\u5168\u6027\u662f\u5176\u4e00\u4e2a\u91cd\u8981\u7684\u4efb\u52a1\u3002\u6240\u8c13\u7684\u5b89\u5168\u6027\u5176\u5b9e\u5c31\u662f\u4fdd\u8bc1\u5bf9Kubernetes\u7684\u5404\u79cd<strong>\u5ba2\u6237\u7aef<\/strong>\u8fdb\u884c<strong>\u8ba4\u8bc1\u548c\u9274\u6743<\/strong>\u64cd\u4f5c\u3002<\/p>\n<p><strong>\u5ba2\u6237\u7aef<\/strong><\/p>\n<p>\u5728Kubernetes\u96c6\u7fa4\u4e2d\uff0c\u5ba2\u6237\u7aef\u901a\u5e38\u6709\u4e24\u7c7b\uff1a<\/p>\n<ul>\n<li><strong>User Account<\/strong>\uff1a\u4e00\u822c\u662f\u72ec\u7acb\u4e8ekubernetes\u4e4b\u5916\u7684\u5176\u4ed6\u670d\u52a1\u7ba1\u7406\u7684\u7528\u6237\u8d26\u53f7\u3002<\/li>\n<li><strong>Service Account<\/strong>\uff1akubernetes\u7ba1\u7406\u7684\u8d26\u53f7\uff0c\u7528\u4e8e\u4e3aPod\u4e2d\u7684\u670d\u52a1\u8fdb\u7a0b\u5728\u8bbf\u95eeKubernetes\u65f6\u63d0\u4f9b\u8eab\u4efd\u6807\u8bc6\u3002<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/qn.199604.com\/typoraImg\/image-20200520102949189.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/qn.199604.com\/typoraImg\/image-20200520102949189.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\" \/><\/div><\/p>\n<p><strong>\u8ba4\u8bc1\u3001\u6388\u6743\u4e0e\u51c6\u5165\u63a7\u5236<\/strong><\/p>\n<p>ApiServer\u662f\u8bbf\u95ee\u53ca\u7ba1\u7406\u8d44\u6e90\u5bf9\u8c61\u7684\u552f\u4e00\u5165\u53e3\u3002\u4efb\u4f55\u4e00\u4e2a\u8bf7\u6c42\u8bbf\u95eeApiServer\uff0c\u90fd\u8981\u7ecf\u8fc7\u4e0b\u9762\u4e09\u4e2a\u6d41\u7a0b\uff1a<\/p>\n<ul>\n<li>Authentication\uff08\u8ba4\u8bc1\uff09\uff1a\u8eab\u4efd\u9274\u522b\uff0c\u53ea\u6709\u6b63\u786e\u7684\u8d26\u53f7\u624d\u80fd\u591f\u901a\u8fc7\u8ba4\u8bc1<\/li>\n<li>Authorization\uff08\u6388\u6743\uff09\uff1a \u5224\u65ad\u7528\u6237\u662f\u5426\u6709\u6743\u9650\u5bf9\u8bbf\u95ee\u7684\u8d44\u6e90\u6267\u884c\u7279\u5b9a\u7684\u52a8\u4f5c<\/li>\n<li>Admission Control\uff08\u51c6\u5165\u63a7\u5236\uff09\uff1a\u7528\u4e8e\u8865\u5145\u6388\u6743\u673a\u5236\u4ee5\u5b9e\u73b0\u66f4\u52a0\u7cbe\u7ec6\u7684\u8bbf\u95ee\u63a7\u5236\u529f\u80fd\u3002<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/qn.199604.com\/typoraImg\/image-20200520103942580.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/qn.199604.com\/typoraImg\/image-20200520103942580.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\" \/><\/div><\/p>\n<h2>9.2 \u8ba4\u8bc1\u7ba1\u7406<\/h2>\n<p>Kubernetes\u96c6\u7fa4\u5b89\u5168\u7684\u6700\u5173\u952e\u70b9\u5728\u4e8e\u5982\u4f55\u8bc6\u522b\u5e76\u8ba4\u8bc1\u5ba2\u6237\u7aef\u8eab\u4efd\uff0c\u5b83\u63d0\u4f9b\u4e863\u79cd\u5ba2\u6237\u7aef\u8eab\u4efd\u8ba4\u8bc1\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>HTTP Base\u8ba4\u8bc1\uff1a\u901a\u8fc7\u7528\u6237\u540d+\u5bc6\u7801\u7684\u65b9\u5f0f\u8ba4\u8bc1\n<pre><code class=\"\">  \u8fd9\u79cd\u8ba4\u8bc1\u65b9\u5f0f\u662f\u628a\u201c\u7528\u6237\u540d:\u5bc6\u7801\u201d\u7528BASE64\u7b97\u6cd5\u8fdb\u884c\u7f16\u7801\u540e\u7684\u5b57\u7b26\u4e32\u653e\u5728HTTP\u8bf7\u6c42\u4e2d\u7684Header Authorization\u57df\u91cc\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u3002\u670d\u52a1\u7aef\u6536\u5230\u540e\u8fdb\u884c\u89e3\u7801\uff0c\u83b7\u53d6\u7528\u6237\u540d\u53ca\u5bc6\u7801\uff0c\u7136\u540e\u8fdb\u884c\u7528\u6237\u8eab\u4efd\u8ba4\u8bc1\u7684\u8fc7\u7a0b\u3002\n<\/code><\/pre>\n<\/li>\n<li>HTTP Token\u8ba4\u8bc1\uff1a\u901a\u8fc7\u4e00\u4e2aToken\u6765\u8bc6\u522b\u5408\u6cd5\u7528\u6237\n<pre><code class=\"\">  \u8fd9\u79cd\u8ba4\u8bc1\u65b9\u5f0f\u662f\u7528\u4e00\u4e2a\u5f88\u957f\u7684\u96be\u4ee5\u88ab\u6a21\u4eff\u7684\u5b57\u7b26\u4e32--Token\u6765\u8868\u660e\u5ba2\u6237\u8eab\u4efd\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u6bcf\u4e2aToken\u5bf9\u5e94\u4e00\u4e2a\u7528\u6237\u540d\uff0c\u5f53\u5ba2\u6237\u7aef\u53d1\u8d77API\u8c03\u7528\u8bf7\u6c42\u65f6\uff0c\u9700\u8981\u5728HTTP Header\u91cc\u653e\u5165Token\uff0cAPI Server\u63a5\u5230Token\u540e\u4f1a\u8ddf\u670d\u52a1\u5668\u4e2d\u4fdd\u5b58\u7684token\u8fdb\u884c\u6bd4\u5bf9\uff0c\u7136\u540e\u8fdb\u884c\u7528\u6237\u8eab\u4efd\u8ba4\u8bc1\u7684\u8fc7\u7a0b\u3002\n<\/code><\/pre>\n<\/li>\n<li>HTTPS\u8bc1\u4e66\u8ba4\u8bc1\uff1a\u57fa\u4e8eCA\u6839\u8bc1\u4e66\u7b7e\u540d\u7684\u53cc\u5411\u6570\u5b57\u8bc1\u4e66\u8ba4\u8bc1\u65b9\u5f0f\n<pre><code class=\"\">  \u8fd9\u79cd\u8ba4\u8bc1\u65b9\u5f0f\u662f\u5b89\u5168\u6027\u6700\u9ad8\u7684\u4e00\u79cd\u65b9\u5f0f\uff0c\u4f46\u662f\u540c\u65f6\u4e5f\u662f\u64cd\u4f5c\u8d77\u6765\u6700\u9ebb\u70e6\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/qn.199604.com\/typoraImg\/image-20200518211037434.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/qn.199604.com\/typoraImg\/image-20200518211037434.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\" \/><\/div><\/p>\n<p><strong>HTTPS\u8ba4\u8bc1\u5927\u4f53\u5206\u4e3a3\u4e2a\u8fc7\u7a0b\uff1a<\/strong><\/p>\n<ol>\n<li>\u8bc1\u4e66\u7533\u8bf7\u548c\u4e0b\u53d1\n<pre><code class=\"\"> HTTPS\u901a\u4fe1\u53cc\u65b9\u7684\u670d\u52a1\u5668\u5411CA\u673a\u6784\u7533\u8bf7\u8bc1\u4e66\uff0cCA\u673a\u6784\u4e0b\u53d1\u6839\u8bc1\u4e66\u3001\u670d\u52a1\u7aef\u8bc1\u4e66\u53ca\u79c1\u94a5\u7ed9\u7533\u8bf7\u8005\n<\/code><\/pre>\n<\/li>\n<li>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u7684\u53cc\u5411\u8ba4\u8bc1\n<pre><code class=\"\"> 1&gt; \u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u7aef\u53d1\u8d77\u8bf7\u6c42\uff0c\u670d\u52a1\u7aef\u4e0b\u53d1\u81ea\u5df1\u7684\u8bc1\u4e66\u7ed9\u5ba2\u6237\u7aef\uff0c\n    \u5ba2\u6237\u7aef\u63a5\u6536\u5230\u8bc1\u4e66\u540e\uff0c\u901a\u8fc7\u79c1\u94a5\u89e3\u5bc6\u8bc1\u4e66\uff0c\u5728\u8bc1\u4e66\u4e2d\u83b7\u5f97\u670d\u52a1\u7aef\u7684\u516c\u94a5\uff0c\n    \u5ba2\u6237\u7aef\u5229\u7528\u670d\u52a1\u5668\u7aef\u7684\u516c\u94a5\u8ba4\u8bc1\u8bc1\u4e66\u4e2d\u7684\u4fe1\u606f\uff0c\u5982\u679c\u4e00\u81f4\uff0c\u5219\u8ba4\u53ef\u8fd9\u4e2a\u670d\u52a1\u5668\n 2&gt; \u5ba2\u6237\u7aef\u53d1\u9001\u81ea\u5df1\u7684\u8bc1\u4e66\u7ed9\u670d\u52a1\u5668\u7aef\uff0c\u670d\u52a1\u7aef\u63a5\u6536\u5230\u8bc1\u4e66\u540e\uff0c\u901a\u8fc7\u79c1\u94a5\u89e3\u5bc6\u8bc1\u4e66\uff0c\n    \u5728\u8bc1\u4e66\u4e2d\u83b7\u5f97\u5ba2\u6237\u7aef\u7684\u516c\u94a5\uff0c\u5e76\u7528\u8be5\u516c\u94a5\u8ba4\u8bc1\u8bc1\u4e66\u4fe1\u606f\uff0c\u786e\u8ba4\u5ba2\u6237\u7aef\u662f\u5426\u5408\u6cd5\n<\/code><\/pre>\n<\/li>\n<li>\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1\n<pre><code class=\"\"> \u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u534f\u5546\u597d\u52a0\u5bc6\u65b9\u6848\u540e\uff0c\u5ba2\u6237\u7aef\u4f1a\u4ea7\u751f\u4e00\u4e2a\u968f\u673a\u7684\u79d8\u94a5\u5e76\u52a0\u5bc6\uff0c\u7136\u540e\u53d1\u9001\u5230\u670d\u52a1\u5668\u7aef\u3002\n \u670d\u52a1\u5668\u7aef\u63a5\u6536\u8fd9\u4e2a\u79d8\u94a5\u540e\uff0c\u53cc\u65b9\u63a5\u4e0b\u6765\u901a\u4fe1\u7684\u6240\u6709\u5185\u5bb9\u90fd\u901a\u8fc7\u8be5\u968f\u673a\u79d8\u94a5\u52a0\u5bc6\n<\/code><\/pre>\n<\/li>\n<\/ol>\n<blockquote><p>\n  \u6ce8\u610f: Kubernetes\u5141\u8bb8\u540c\u65f6\u914d\u7f6e\u591a\u79cd\u8ba4\u8bc1\u65b9\u5f0f\uff0c\u53ea\u8981\u5176\u4e2d\u4efb\u610f\u4e00\u4e2a\u65b9\u5f0f\u8ba4\u8bc1\u901a\u8fc7\u5373\u53ef\n<\/p><\/blockquote>\n<h2>9.3 \u6388\u6743\u7ba1\u7406<\/h2>\n<p>\u6388\u6743\u53d1\u751f\u5728\u8ba4\u8bc1\u6210\u529f\u4e4b\u540e\uff0c\u901a\u8fc7\u8ba4\u8bc1\u5c31\u53ef\u4ee5\u77e5\u9053\u8bf7\u6c42\u7528\u6237\u662f\u8c01\uff0c \u7136\u540eKubernetes\u4f1a\u6839\u636e\u4e8b\u5148\u5b9a\u4e49\u7684\u6388\u6743\u7b56\u7565\u6765\u51b3\u5b9a\u7528\u6237\u662f\u5426\u6709\u6743\u9650\u8bbf\u95ee\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u79f0\u4e3a\u6388\u6743\u3002<\/p>\n<p>\u6bcf\u4e2a\u53d1\u9001\u5230ApiServer\u7684\u8bf7\u6c42\u90fd\u5e26\u4e0a\u4e86\u7528\u6237\u548c\u8d44\u6e90\u7684\u4fe1\u606f\uff1a\u6bd4\u5982\u53d1\u9001\u8bf7\u6c42\u7684\u7528\u6237\u3001\u8bf7\u6c42\u7684\u8def\u5f84\u3001\u8bf7\u6c42\u7684\u52a8\u4f5c\u7b49\uff0c\u6388\u6743\u5c31\u662f\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u548c\u6388\u6743\u7b56\u7565\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679c\u7b26\u5408\u7b56\u7565\uff0c\u5219\u8ba4\u4e3a\u6388\u6743\u901a\u8fc7\uff0c\u5426\u5219\u4f1a\u8fd4\u56de\u9519\u8bef\u3002<\/p>\n<p>API Server\u76ee\u524d\u652f\u6301\u4ee5\u4e0b\u51e0\u79cd\u6388\u6743\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>AlwaysDeny\uff1a\u8868\u793a\u62d2\u7edd\u6240\u6709\u8bf7\u6c42\uff0c\u4e00\u822c\u7528\u4e8e\u6d4b\u8bd5<\/li>\n<li>AlwaysAllow\uff1a\u5141\u8bb8\u63a5\u6536\u6240\u6709\u8bf7\u6c42\uff0c\u76f8\u5f53\u4e8e\u96c6\u7fa4\u4e0d\u9700\u8981\u6388\u6743\u6d41\u7a0b\uff08Kubernetes\u9ed8\u8ba4\u7684\u7b56\u7565\uff09<\/li>\n<li>ABAC\uff1a\u57fa\u4e8e\u5c5e\u6027\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u8868\u793a\u4f7f\u7528\u7528\u6237\u914d\u7f6e\u7684\u6388\u6743\u89c4\u5219\u5bf9\u7528\u6237\u8bf7\u6c42\u8fdb\u884c\u5339\u914d\u548c\u63a7\u5236<\/li>\n<li>Webhook\uff1a\u901a\u8fc7\u8c03\u7528\u5916\u90e8REST\u670d\u52a1\u5bf9\u7528\u6237\u8fdb\u884c\u6388\u6743<\/li>\n<li>Node\uff1a\u662f\u4e00\u79cd\u4e13\u7528\u6a21\u5f0f\uff0c\u7528\u4e8e\u5bf9kubelet\u53d1\u51fa\u7684\u8bf7\u6c42\u8fdb\u884c\u8bbf\u95ee\u63a7\u5236<\/li>\n<li>RBAC\uff1a\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff08kubeadm\u5b89\u88c5\u65b9\u5f0f\u4e0b\u7684\u9ed8\u8ba4\u9009\u9879\uff09<\/li>\n<\/ul>\n<p>RBAC(Role-Based Access Control) \u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u4e3b\u8981\u662f\u5728\u63cf\u8ff0\u4e00\u4ef6\u4e8b\u60c5\uff1a<strong>\u7ed9\u54ea\u4e9b\u5bf9\u8c61\u6388\u4e88\u4e86\u54ea\u4e9b\u6743\u9650<\/strong><\/p>\n<p>\u5176\u4e2d\u6d89\u53ca\u5230\u4e86\u4e0b\u9762\u51e0\u4e2a\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li>\u5bf9\u8c61\uff1aUser\u3001Groups\u3001ServiceAccount<\/li>\n<li>\u89d2\u8272\uff1a\u4ee3\u8868\u7740\u4e00\u7ec4\u5b9a\u4e49\u5728\u8d44\u6e90\u4e0a\u7684\u53ef\u64cd\u4f5c\u52a8\u4f5c(\u6743\u9650)\u7684\u96c6\u5408<\/li>\n<li>\u7ed1\u5b9a\uff1a\u5c06\u5b9a\u4e49\u597d\u7684\u89d2\u8272\u8ddf\u7528\u6237\u7ed1\u5b9a\u5728\u4e00\u8d77<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/qn.199604.com\/typoraImg\/image-20200519181209566.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/qn.199604.com\/typoraImg\/image-20200519181209566.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\" \/><\/div><\/p>\n<p>RBAC\u5f15\u5165\u4e864\u4e2a\u9876\u7ea7\u8d44\u6e90\u5bf9\u8c61\uff1a<\/p>\n<ul>\n<li>Role\u3001ClusterRole\uff1a\u89d2\u8272\uff0c\u7528\u4e8e\u6307\u5b9a\u4e00\u7ec4\u6743\u9650<\/li>\n<li>RoleBinding\u3001ClusterRoleBinding\uff1a\u89d2\u8272\u7ed1\u5b9a\uff0c\u7528\u4e8e\u5c06\u89d2\u8272\uff08\u6743\u9650\uff09\u8d4b\u4e88\u7ed9\u5bf9\u8c61<\/li>\n<\/ul>\n<p><strong>Role\u3001ClusterRole<\/strong><\/p>\n<p>\u4e00\u4e2a\u89d2\u8272\u5c31\u662f\u4e00\u7ec4\u6743\u9650\u7684\u96c6\u5408\uff0c\u8fd9\u91cc\u7684\u6743\u9650\u90fd\u662f\u8bb8\u53ef\u5f62\u5f0f\u7684\uff08\u767d\u540d\u5355\uff09\u3002<\/p>\n<pre><code class=\"language-yaml \"># Role\u53ea\u80fd\u5bf9\u547d\u540d\u7a7a\u95f4\u5185\u7684\u8d44\u6e90\u8fdb\u884c\u6388\u6743\uff0c\u9700\u8981\u6307\u5b9anameapce\nkind: Role\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n  namespace: dev\n  name: authorization-role\nrules:\n- apiGroups: [\"\"]  # \u652f\u6301\u7684API\u7ec4\u5217\u8868,\"\" \u7a7a\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u6838\u5fc3API\u7fa4\n  resources: [\"pods\"] # \u652f\u6301\u7684\u8d44\u6e90\u5bf9\u8c61\u5217\u8868\n  verbs: [\"get\", \"watch\", \"list\"] # \u5141\u8bb8\u7684\u5bf9\u8d44\u6e90\u5bf9\u8c61\u7684\u64cd\u4f5c\u65b9\u6cd5\u5217\u8868\n<\/code><\/pre>\n<pre><code class=\"language-yaml \"># ClusterRole\u53ef\u4ee5\u5bf9\u96c6\u7fa4\u8303\u56f4\u5185\u8d44\u6e90\u3001\u8de8namespaces\u7684\u8303\u56f4\u8d44\u6e90\u3001\u975e\u8d44\u6e90\u7c7b\u578b\u8fdb\u884c\u6388\u6743\nkind: ClusterRole\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n name: authorization-clusterrole\nrules:\n- apiGroups: [\"\"]\n  resources: [\"pods\"]\n  verbs: [\"get\", \"watch\", \"list\"]\n<\/code><\/pre>\n<p>\u9700\u8981\u8be6\u7ec6\u8bf4\u660e\u7684\u662f\uff0crules\u4e2d\u7684\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>apiGroups: \u652f\u6301\u7684API\u7ec4\u5217\u8868\n<pre><code class=\"\">\"\",\"apps\", \"autoscaling\", \"batch\"\n<\/code><\/pre>\n<\/li>\n<li>resources\uff1a\u652f\u6301\u7684\u8d44\u6e90\u5bf9\u8c61\u5217\u8868\n<pre><code class=\"\">\"services\", \"endpoints\", \"pods\",\"secrets\",\"configmaps\",\"crontabs\",\"deployments\",\"jobs\",\n\"nodes\",\"rolebindings\",\"clusterroles\",\"daemonsets\",\"replicasets\",\"statefulsets\",\n\"horizontalpodautoscalers\",\"replicationcontrollers\",\"cronjobs\"\n<\/code><\/pre>\n<\/li>\n<li>verbs\uff1a\u5bf9\u8d44\u6e90\u5bf9\u8c61\u7684\u64cd\u4f5c\u65b9\u6cd5\u5217\u8868\n<pre><code class=\"\">\"get\", \"list\", \"watch\", \"create\", \"update\", \"patch\", \"delete\", \"exec\"\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<p><strong>RoleBinding\u3001ClusterRoleBinding<\/strong><\/p>\n<p>\u89d2\u8272\u7ed1\u5b9a\u7528\u6765\u628a\u4e00\u4e2a\u89d2\u8272\u7ed1\u5b9a\u5230\u4e00\u4e2a\u76ee\u6807\u5bf9\u8c61\u4e0a\uff0c\u7ed1\u5b9a\u76ee\u6807\u53ef\u4ee5\u662fUser\u3001Group\u6216\u8005ServiceAccount\u3002<\/p>\n<pre><code class=\"language-yaml \"># RoleBinding\u53ef\u4ee5\u5c06\u540c\u4e00namespace\u4e2d\u7684subject\u7ed1\u5b9a\u5230\u67d0\u4e2aRole\u4e0b\uff0c\u5219\u6b64subject\u5373\u5177\u6709\u8be5Role\u5b9a\u4e49\u7684\u6743\u9650\nkind: RoleBinding\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n  name: authorization-role-binding\n  namespace: dev\nsubjects:\n- kind: User\n  name: heima\n  apiGroup: rbac.authorization.k8s.io\nroleRef:\n  kind: Role\n  name: authorization-role\n  apiGroup: rbac.authorization.k8s.io\n<\/code><\/pre>\n<pre><code class=\"language-yaml \"># ClusterRoleBinding\u5728\u6574\u4e2a\u96c6\u7fa4\u7ea7\u522b\u548c\u6240\u6709namespaces\u5c06\u7279\u5b9a\u7684subject\u4e0eClusterRole\u7ed1\u5b9a\uff0c\u6388\u4e88\u6743\u9650\nkind: ClusterRoleBinding\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n name: authorization-clusterrole-binding\nsubjects:\n- kind: User\n  name: heima\n  apiGroup: rbac.authorization.k8s.io\nroleRef:\n  kind: ClusterRole\n  name: authorization-clusterrole\n  apiGroup: rbac.authorization.k8s.io\n<\/code><\/pre>\n<p><strong>RoleBinding\u5f15\u7528ClusterRole\u8fdb\u884c\u6388\u6743<\/strong><\/p>\n<p>RoleBinding\u53ef\u4ee5\u5f15\u7528ClusterRole\uff0c\u5bf9\u5c5e\u4e8e\u540c\u4e00\u547d\u540d\u7a7a\u95f4\u5185ClusterRole\u5b9a\u4e49\u7684\u8d44\u6e90\u4e3b\u4f53\u8fdb\u884c\u6388\u6743\u3002<\/p>\n<pre><code class=\"\">    \u4e00\u79cd\u5f88\u5e38\u7528\u7684\u505a\u6cd5\u5c31\u662f\uff0c\u96c6\u7fa4\u7ba1\u7406\u5458\u4e3a\u96c6\u7fa4\u8303\u56f4\u9884\u5b9a\u4e49\u597d\u4e00\u7ec4\u89d2\u8272\uff08ClusterRole\uff09\uff0c\u7136\u540e\u5728\u591a\u4e2a\u547d\u540d\u7a7a\u95f4\u4e2d\u91cd\u590d\u4f7f\u7528\u8fd9\u4e9bClusterRole\u3002\u8fd9\u6837\u53ef\u4ee5\u5927\u5e45\u63d0\u9ad8\u6388\u6743\u7ba1\u7406\u5de5\u4f5c\u6548\u7387\uff0c\u4e5f\u4f7f\u5f97\u5404\u4e2a\u547d\u540d\u7a7a\u95f4\u4e0b\u7684\u57fa\u7840\u6027\u6388\u6743\u89c4\u5219\u4e0e\u4f7f\u7528\u4f53\u9a8c\u4fdd\u6301\u4e00\u81f4\u3002\n<\/code><\/pre>\n<pre><code class=\"language-yaml \"># \u867d\u7136authorization-clusterrole\u662f\u4e00\u4e2a\u96c6\u7fa4\u89d2\u8272\uff0c\u4f46\u662f\u56e0\u4e3a\u4f7f\u7528\u4e86RoleBinding\n# \u6240\u4ee5heima\u53ea\u80fd\u8bfb\u53d6dev\u547d\u540d\u7a7a\u95f4\u4e2d\u7684\u8d44\u6e90\nkind: RoleBinding\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n  name: authorization-role-binding-ns\n  namespace: dev\nsubjects:\n- kind: User\n  name: heima\n  apiGroup: rbac.authorization.k8s.io\nroleRef:\n  kind: ClusterRole\n  name: authorization-clusterrole\n  apiGroup: rbac.authorization.k8s.io\n<\/code><\/pre>\n<p><strong>\u5b9e\u6218\uff1a\u521b\u5efa\u4e00\u4e2a\u53ea\u80fd\u7ba1\u7406dev\u7a7a\u95f4\u4e0bPods\u8d44\u6e90\u7684\u8d26\u53f7<\/strong><\/p>\n<p>1) \u521b\u5efa\u8d26\u53f7<\/p>\n<pre><code class=\"language-shell \"># 1) \u521b\u5efa\u8bc1\u4e66\n[root@k8s-master01 pki]# cd \/etc\/kubernetes\/pki\/\n[root@k8s-master01 pki]# (umask 077;openssl genrsa -out devman.key 2048)\n\n# 2) \u7528apiserver\u7684\u8bc1\u4e66\u53bb\u7b7e\u7f72\n# 2-1) \u7b7e\u540d\u7533\u8bf7\uff0c\u7533\u8bf7\u7684\u7528\u6237\u662fdevman,\u7ec4\u662fdevgroup\n[root@k8s-master01 pki]# openssl req -new -key devman.key -out devman.csr -subj \"\/CN=devman\/O=devgroup\"     \n# 2-2) \u7b7e\u7f72\u8bc1\u4e66\n[root@k8s-master01 pki]# openssl x509 -req -in devman.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out devman.crt -days 3650\n\n# 3) \u8bbe\u7f6e\u96c6\u7fa4\u3001\u7528\u6237\u3001\u4e0a\u4e0b\u6587\u4fe1\u606f\n[root@k8s-master01 pki]# kubectl config set-cluster kubernetes --embed-certs=true --certificate-authority=\/etc\/kubernetes\/pki\/ca.crt --server=https:\/\/192.168.109.100:6443\n\n[root@k8s-master01 pki]# kubectl config set-credentials devman --embed-certs=true --client-certificate=\/etc\/kubernetes\/pki\/devman.crt --client-key=\/etc\/kubernetes\/pki\/devman.key\n\n[root@k8s-master01 pki]# kubectl config set-context devman@kubernetes --cluster=kubernetes --user=devman\n\n# \u5207\u6362\u8d26\u6237\u5230devman\n[root@k8s-master01 pki]# kubectl config use-context devman@kubernetes\nSwitched to context \"devman@kubernetes\".\n\n# \u67e5\u770bdev\u4e0bpod\uff0c\u53d1\u73b0\u6ca1\u6709\u6743\u9650\n[root@k8s-master01 pki]# kubectl get pods -n dev\nError from server (Forbidden): pods is forbidden: User \"devman\" cannot list resource \"pods\" in API group \"\" in the namespace \"dev\"\n\n# \u5207\u6362\u5230admin\u8d26\u6237\n[root@k8s-master01 pki]# kubectl config use-context kubernetes-admin@kubernetes\nSwitched to context \"kubernetes-admin@kubernetes\".\n<\/code><\/pre>\n<p>2\uff09 \u521b\u5efaRole\u548cRoleBinding\uff0c\u4e3adevman\u7528\u6237\u6388\u6743<\/p>\n<pre><code class=\"language-yaml \">kind: Role\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n  namespace: dev\n  name: dev-role\nrules:\n- apiGroups: [\"\"]\n  resources: [\"pods\"]\n  verbs: [\"get\", \"watch\", \"list\"]\n\n---\n\nkind: RoleBinding\napiVersion: rbac.authorization.k8s.io\/v1beta1\nmetadata:\n  name: authorization-role-binding\n  namespace: dev\nsubjects:\n- kind: User\n  name: devman\n  apiGroup: rbac.authorization.k8s.io\nroleRef:\n  kind: Role\n  name: dev-role\n  apiGroup: rbac.authorization.k8s.io\n<\/code><\/pre>\n<pre><code class=\"language-shell \">[root@k8s-master01 pki]# kubectl create -f dev-role.yaml\nrole.rbac.authorization.k8s.io\/dev-role created\nrolebinding.rbac.authorization.k8s.io\/authorization-role-binding created\n<\/code><\/pre>\n<p>3) \u5207\u6362\u8d26\u6237\uff0c\u518d\u6b21\u9a8c\u8bc1<\/p>\n<pre><code class=\"language-shell \"># \u5207\u6362\u8d26\u6237\u5230devman\n[root@k8s-master01 pki]# kubectl config use-context devman@kubernetes\nSwitched to context \"devman@kubernetes\".\n\n# \u518d\u6b21\u67e5\u770b\n[root@k8s-master01 pki]# kubectl get pods -n dev\nNAME                                 READY   STATUS             RESTARTS   AGE\nnginx-deployment-66cb59b984-8wp2k    1\/1     Running            0          4d1h\nnginx-deployment-66cb59b984-dc46j    1\/1     Running            0          4d1h\nnginx-deployment-66cb59b984-thfck    1\/1     Running            0          4d1h\n\n# \u4e3a\u4e86\u4e0d\u5f71\u54cd\u540e\u9762\u7684\u5b66\u4e60,\u5207\u56deadmin\u8d26\u6237\n[root@k8s-master01 pki]# kubectl config use-context kubernetes-admin@kubernetes\nSwitched to context \"kubernetes-admin@kubernetes\".\n<\/code><\/pre>\n<h2>9.4 \u51c6\u5165\u63a7\u5236<\/h2>\n<p>\u901a\u8fc7\u4e86\u524d\u9762\u7684\u8ba4\u8bc1\u548c\u6388\u6743\u4e4b\u540e\uff0c\u8fd8\u9700\u8981\u7ecf\u8fc7\u51c6\u5165\u63a7\u5236\u5904\u7406\u901a\u8fc7\u4e4b\u540e\uff0capiserver\u624d\u4f1a\u5904\u7406\u8fd9\u4e2a\u8bf7\u6c42\u3002<\/p>\n<p>\u51c6\u5165\u63a7\u5236\u662f\u4e00\u4e2a\u53ef\u914d\u7f6e\u7684\u63a7\u5236\u5668\u5217\u8868\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728Api-Server\u4e0a\u901a\u8fc7\u547d\u4ee4\u884c\u8bbe\u7f6e\u9009\u62e9\u6267\u884c\u54ea\u4e9b\u51c6\u5165\u63a7\u5236\u5668\uff1a<\/p>\n<pre><code class=\"\">--admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,\n                      DefaultStorageClass,ResourceQuota,DefaultTolerationSeconds\n<\/code><\/pre>\n<p>\u53ea\u6709\u5f53\u6240\u6709\u7684\u51c6\u5165\u63a7\u5236\u5668\u90fd\u68c0\u67e5\u901a\u8fc7\u4e4b\u540e\uff0capiserver\u624d\u6267\u884c\u8be5\u8bf7\u6c42\uff0c\u5426\u5219\u8fd4\u56de\u62d2\u7edd\u3002<\/p>\n<p>\u5f53\u524d\u53ef\u914d\u7f6e\u7684Admission Control\u51c6\u5165\u63a7\u5236\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>AlwaysAdmit\uff1a\u5141\u8bb8\u6240\u6709\u8bf7\u6c42<\/li>\n<li>AlwaysDeny\uff1a\u7981\u6b62\u6240\u6709\u8bf7\u6c42\uff0c\u4e00\u822c\u7528\u4e8e\u6d4b\u8bd5<\/li>\n<li>AlwaysPullImages\uff1a\u5728\u542f\u52a8\u5bb9\u5668\u4e4b\u524d\u603b\u53bb\u4e0b\u8f7d\u955c\u50cf<\/li>\n<li>DenyExecOnPrivileged\uff1a\u5b83\u4f1a\u62e6\u622a\u6240\u6709\u60f3\u5728Privileged Container\u4e0a\u6267\u884c\u547d\u4ee4\u7684\u8bf7\u6c42<\/li>\n<li>ImagePolicyWebhook\uff1a\u8fd9\u4e2a\u63d2\u4ef6\u5c06\u5141\u8bb8\u540e\u7aef\u7684\u4e00\u4e2aWebhook\u7a0b\u5e8f\u6765\u5b8c\u6210admission controller\u7684\u529f\u80fd\u3002<\/li>\n<li>Service Account\uff1a\u5b9e\u73b0ServiceAccount\u5b9e\u73b0\u4e86\u81ea\u52a8\u5316<\/li>\n<li>SecurityContextDeny\uff1a\u8fd9\u4e2a\u63d2\u4ef6\u5c06\u4f7f\u7528SecurityContext\u7684Pod\u4e2d\u7684\u5b9a\u4e49\u5168\u90e8\u5931\u6548<\/li>\n<li>ResourceQuota\uff1a\u7528\u4e8e\u8d44\u6e90\u914d\u989d\u7ba1\u7406\u76ee\u7684\uff0c\u89c2\u5bdf\u6240\u6709\u8bf7\u6c42\uff0c\u786e\u4fdd\u5728namespace\u4e0a\u7684\u914d\u989d\u4e0d\u4f1a\u8d85\u6807<\/li>\n<li>LimitRanger\uff1a\u7528\u4e8e\u8d44\u6e90\u9650\u5236\u7ba1\u7406\uff0c\u4f5c\u7528\u4e8enamespace\u4e0a\uff0c\u786e\u4fdd\u5bf9Pod\u8fdb\u884c\u8d44\u6e90\u9650\u5236<\/li>\n<li>InitialResources\uff1a\u4e3a\u672a\u8bbe\u7f6e\u8d44\u6e90\u8bf7\u6c42\u4e0e\u9650\u5236\u7684Pod\uff0c\u6839\u636e\u5176\u955c\u50cf\u7684\u5386\u53f2\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\u8fdb\u884c\u8bbe\u7f6e<\/li>\n<li>NamespaceLifecycle\uff1a\u5982\u679c\u5c1d\u8bd5\u5728\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684namespace\u4e2d\u521b\u5efa\u8d44\u6e90\u5bf9\u8c61\uff0c\u5219\u8be5\u521b\u5efa\u8bf7\u6c42\u5c06\u88ab\u62d2\u7edd\u3002\u5f53\u5220\u9664\u4e00\u4e2anamespace\u65f6\uff0c\u7cfb\u7edf\u5c06\u4f1a\u5220\u9664\u8be5namespace\u4e2d\u6240\u6709\u5bf9\u8c61\u3002<\/li>\n<li>DefaultStorageClass\uff1a\u4e3a\u4e86\u5b9e\u73b0\u5171\u4eab\u5b58\u50a8\u7684\u52a8\u6001\u4f9b\u5e94\uff0c\u4e3a\u672a\u6307\u5b9aStorageClass\u6216PV\u7684PVC\u5c1d\u8bd5\u5339\u914d\u9ed8\u8ba4\u7684StorageClass\uff0c\u5c3d\u53ef\u80fd\u51cf\u5c11\u7528\u6237\u5728\u7533\u8bf7PVC\u65f6\u6240\u9700\u4e86\u89e3\u7684\u540e\u7aef\u5b58\u50a8\u7ec6\u8282<\/li>\n<li>DefaultTolerationSeconds\uff1a\u8fd9\u4e2a\u63d2\u4ef6\u4e3a\u90a3\u4e9b\u6ca1\u6709\u8bbe\u7f6eforgiveness tolerations\u5e76\u5177\u6709notready:NoExecute\u548cunreachable:NoExecute\u4e24\u79cdtaints\u7684Pod\u8bbe\u7f6e\u9ed8\u8ba4\u7684\u201c\u5bb9\u5fcd\u201d\u65f6\u95f4\uff0c\u4e3a5min<\/li>\n<li>PodSecurityPolicy\uff1a\u8fd9\u4e2a\u63d2\u4ef6\u7528\u4e8e\u5728\u521b\u5efa\u6216\u4fee\u6539Pod\u65f6\u51b3\u5b9a\u662f\u5426\u6839\u636ePod\u7684security context\u548c\u53ef\u7528\u7684PodSecurityPolicy\u5bf9Pod\u7684\u5b89\u5168\u7b56\u7565\u8fdb\u884c\u63a7\u5236<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Kubernetes\u5b66\u4e60\u624b\u672d-\u5b89\u5168\u8ba4\u8bc1 9.1 \u8bbf\u95ee\u63a7\u5236\u6982\u8ff0 Kubernetes\u4f5c\u4e3a\u4e00\u4e2a\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u7ba1\u7406\u5de5\u5177 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[353],"tags":[352,351],"class_list":["post-2107","post","type-post","status-publish","format-standard","hentry","category-kubernetes","tag-k8s","tag-kubernetes"],"_links":{"self":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/2107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/comments?post=2107"}],"version-history":[{"count":1,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/2107\/revisions"}],"predecessor-version":[{"id":2108,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/2107\/revisions\/2108"}],"wp:attachment":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/media?parent=2107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/categories?post=2107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/tags?post=2107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}