{"id":104,"date":"2026-08-24T00:20:58","date_gmt":"2026-08-23T16:20:58","guid":{"rendered":"https:\/\/www.xiaoxindong.cloud\/?p=104"},"modified":"2026-09-06T19:56:18","modified_gmt":"2026-09-06T11:56:18","slug":"7-k8s-%e5%8a%a8%e6%80%81-pv-%e4%b8%8e%e8%8a%82%e7%82%b9%e4%ba%b2%e5%92%8c%e6%80%a7%e5%8f%8a%e6%b1%a1%e7%82%b9%e4%b8%8e%e5%ae%b9%e5%bf%8d%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/www.xiaoxindong.cloud\/?p=104","title":{"rendered":"7. K8s \u52a8\u6001 PV \u4e0e\u8282\u70b9\u4eb2\u548c\u6027\u53ca\u6c61\u70b9\u4e0e\u5bb9\u5fcd\u5ea6"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001StorageClass \u52a8\u6001 PV\uff08\u5b58\u50a8\u7c7b\uff09\u2b50<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u6982\u5ff5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">StorageClass \u662f<strong>\u96c6\u7fa4\u7ea7\u522b\u8d44\u6e90<\/strong>\uff0c\u5b9a\u4e49 PV \u52a8\u6001\u521b\u5efa\u7b56\u7565\uff0c\u5b9e\u73b0<strong>\u52a8\u6001\u4f9b\u7ed9 PV<\/strong>\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u9759\u6001 PV\uff1a\u7ba1\u7406\u5458\u624b\u52a8\u4e00\u4e2a\u4e2a\u521b\u5efa PV\uff1b \u52a8\u6001 PV\uff1a\u7528\u6237\u4ec5\u521b\u5efa PVC\uff0c\u6307\u5b9a<code>storageClassName<\/code>\uff0cStorageClass \u8c03\u7528<code>provisioner<\/code>\u5236\u5907\u5668<strong>\u81ea\u52a8\u521b\u5efa PV \u5e76\u5b8c\u6210\u7ed1\u5b9a<\/strong>\uff0c\u4e0d\u7528\u4eba\u5de5\u7ef4\u62a4 PV\uff0c\u5927\u89c4\u6a21\u96c6\u7fa4\u4e3b\u6d41\u65b9\u6848\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u7c7b\u6bd4\uff1a\u67dc\u5b50 (StorageClass)\uff0c\u9700\u8981\u5145\u7535\u5b9d (PV) \u76f4\u63a5\u81ea\u52a8\u5f39\u51fa\uff0c\u4e0d\u7528\u4eba\u5de5\u9884\u5148\u51c6\u5907\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6838\u5fc3\u5b57\u6bb5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>provisioner\uff08\u5236\u5907\u5668\uff09<\/strong>\uff1a\u51b3\u5b9a\u8c03\u7528\u54ea\u4e2a\u5b58\u50a8\u63d2\u4ef6\uff0c\u8d1f\u8d23\u771f\u6b63\u53bb\u540e\u7aef\u5b58\u50a8\u521b\u5efa PV\u3002\n<ul class=\"wp-block-list\">\n<li>nfs-subdir\u2011external\u2011provisioner \u6807\u8bc6\uff1a<code>fuseim.pri\/ifs<\/code>\uff0cNFS \u52a8\u6001\u4f9b\u7ed9<\/li>\n\n\n\n<li>\u4e91\u5382\u5546 EBS\u3001AzureDisk\u3001Ceph\u2011RBD \u90fd\u6709\u5bf9\u5e94 provisioner<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><code>reclaimPolicy<\/code>\uff1a\u56de\u6536\u7b56\u7565\uff08Retain \/ Delete\uff09\uff0cPVC \u5220\u9664\u540e\u5e95\u5c42\u5b58\u50a8\u5982\u4f55\u5904\u7406<\/li>\n\n\n\n<li><code>volumeBindingMode<\/code>\uff1a\u5377\u7ed1\u5b9a\u6a21\u5f0f\n<ul class=\"wp-block-list\">\n<li><code>Immediate<\/code>\uff1aPVC \u521b\u5efa\u7acb\u523b\u521b\u5efa\u5e76\u7ed1\u5b9a PV\uff08NFS \u7b49\u4e0d\u4f9d\u8d56\u8282\u70b9\u5b58\u50a8\uff09<\/li>\n\n\n\n<li><code>WaitForFirstConsumer<\/code>\uff1a<strong>\u7b49\u5f85 Pod \u521b\u5efa\u624d\u53bb\u521b\u5efa PV<\/strong>\uff0c\u672c\u5730\u76d8\u3001\u5757\u5b58\u50a8\u5e38\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><code>allowVolumeExpansion<\/code>\uff1a\u662f\u5426\u652f\u6301 PVC \u5b58\u50a8\u5bb9\u91cf\u5728\u7ebf\u6269\u5bb9<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">NFS \u52a8\u6001\u4f9b\u7ed9\u7ec4\u4ef6<code>nfs\u2011client\u2011provisioner<\/code>\uff1a\u662f\u4e00\u4e2a Deployment \u63a7\u5236\u5668 Pod<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6301\u7eed watch \u76d1\u542c PVC \u8d44\u6e90\u4e8b\u4ef6\uff1b<\/li>\n\n\n\n<li>\u9700\u8981 ServiceAccount\u3001ClusterRole\u3001ClusterRoleBinding RBAC \u6743\u9650\uff1b<\/li>\n\n\n\n<li>\u6536\u5230 PVC \u8bf7\u6c42\uff0c\u5728 NFS \u5171\u4eab\u76ee\u5f55\u81ea\u52a8\u521b\u5efa\u5b50\u76ee\u5f55\uff0c\u81ea\u52a8\u751f\u6210 PV\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">NFS \u52a8\u6001\u4f9b\u7ed9\u5b8c\u6574\u6d41\u7a0b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u90e8\u7f72 nfs\u2011client\u2011provisioner\uff08SA+RBAC+Deployment+StorageClass\uff09<\/li>\n\n\n\n<li>\u7528\u6237\u521b\u5efa PVC\uff0c\u6307\u5b9a<code>storageClassName: nfs\u2011storage<\/code><\/li>\n\n\n\n<li>provisioner \u76d1\u542c\u5230 PVC \u4e8b\u4ef6<\/li>\n\n\n\n<li>\u5728 NFS \u670d\u52a1\u7aef\u5171\u4eab\u76ee\u5f55\u81ea\u52a8\u751f\u6210\u5b50\u76ee\u5f55<code>pvc\u2011xxxx<\/code><\/li>\n\n\n\n<li>\u81ea\u52a8\u521b\u5efa PV\uff0cPVC \u4e0e PV \u5b8c\u6210 Bound \u7ed1\u5b9a<\/li>\n\n\n\n<li>Pod \u6302\u8f7d PVC \u4f7f\u7528\u5b58\u50a8<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\u91cd\u8981\u6ce8\u610f\uff1a<\/p>\n<\/blockquote>\n\n\n\n<ol class=\"wp-block-list\">\n<li>StorageClass \u662f<strong>\u96c6\u7fa4\u8d44\u6e90\uff0c\u6ca1\u6709 namespace<\/strong><\/li>\n\n\n\n<li><code>provisioner<\/code>\u540d\u79f0\uff0cStorageClass \u91cc\u9762\u7684\u503c\u5fc5\u987b\u548c Deployment \u73af\u5883\u53d8\u91cf<code>PROVISIONER_NAME<\/code>\u5b8c\u5168\u4e00\u81f4<\/li>\n\n\n\n<li>NFS \u670d\u52a1\u7aef\u5171\u4eab\u76ee\u5f55\u6743\u9650\u8981\u653e\u5f00\uff0c\u5426\u5219 provisioner \u65e0\u6cd5\u65b0\u5efa\u5b50\u76ee\u5f55<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e24\u79cd\u4f7f\u7528\u573a\u666f<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Deployment \u4f7f\u7528\u52a8\u6001\u5b58\u50a8<\/strong>\uff1a\u624b\u52a8\u5199 PVC\uff0cPod \u6302\u8f7d PVC\uff0c\u591a\u4e2a Pod \u53ef\u4ee5\u5171\u7528\u4e00\u5957 PVC\uff08NFS \u652f\u6301 RWX\uff09<\/li>\n\n\n\n<li><strong>StatefulSet \u4f7f\u7528\u52a8\u6001\u5b58\u50a8\uff1avolumeClaimTemplates\uff08\u5377\u7533\u9886\u6a21\u677f\uff09<\/strong><\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">StatefulSet \u7684<code>volumeClaimTemplates<\/code>\u4f1a<strong>\u4e3a\u6bcf\u4e00\u4e2a Pod \u81ea\u52a8\u751f\u6210\u72ec\u7acb PVC<\/strong>\uff1bpod\u20110\u3001pod\u20111 \u5404\u81ea\u4e00\u5957 PVC\/PV\uff0c\u6570\u636e\u9694\u79bb\u3002 \u26a0\u5220\u9664 StatefulSet\/Pod<strong>\u4e0d\u4f1a\u81ea\u52a8\u5220\u9664 PVC<\/strong>\uff08\u4fdd\u62a4\u6570\u636e\uff09\uff1b\u9700\u8981\u624b\u52a8\u5220\u9664 PVC\uff0c\u624d\u4f1a\u89e6\u53d1 PV \u6e05\u7406\u3002<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u56de\u6536\u7b56\u7565\u4e3a<code>Delete<\/code>\uff1a\u53ea\u6709\u5220\u9664 PVC \u624d\u4f1a\u81ea\u52a8\u5220\u9664 PV \u4ee5\u53ca\u540e\u7aef\u5b58\u50a8\u76ee\u5f55\uff1b\u53ea\u5220\u5de5\u4f5c\u8d1f\u8f7d PVC \u4fdd\u7559\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u7528\u547d\u4ee4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>kubectl get sc                         #\u67e5\u770b\u5b58\u50a8\u7c7b\nkubectl get pv pvc\nkubectl describe sc nfs\u2011storage\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001Pod \u8c03\u5ea6\u7b56\u7565\uff1a\u8282\u70b9\u4eb2\u548c nodeAffinity<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u4f5c\u7528\uff1a\u57fa\u4e8e<strong>\u8282\u70b9\u6807\u7b7e<\/strong>\u63a7\u5236 Pod \u8c03\u5ea6\u5230\u54ea\u4e9b\u8282\u70b9\uff1b\u5206\u4e3a\u786c\u4eb2\u548c\u3001\u8f6f\u4eb2\u548c\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed9\u8282\u70b9\u6253\u6807\u7b7e<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u6253\u6807\u7b7e\nkubectl label nodes k8s\u2011node01 disktype=ssd\n#\u67e5\u770b\u8282\u70b9\u6807\u7b7e\nkubectl get nodes --show\u2011labels\n#\u5220\u9664\u6807\u7b7e\uff0ckey\u540e\u52a0\"-\"\nkubectl label nodes k8s\u2011node01 disktype\u2011\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5339\u914d\u64cd\u4f5c\u7b26<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u683c<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u64cd\u4f5c\u7b26<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td><code>In<\/code><\/td><td>\u8282\u70b9\u6807\u7b7e\u503c\u5728\u5217\u8868\u4e4b\u5185<\/td><\/tr><tr><td><code>NotIn<\/code><\/td><td>\u8282\u70b9\u6807\u7b7e\u503c\u4e0d\u5728\u5217\u8868\u4e4b\u5185<\/td><\/tr><tr><td><code>Exists<\/code><\/td><td>\u8282\u70b9\u5b58\u5728\u8be5\u6807\u7b7e\uff0c\u4e0d\u5173\u5fc3 value<\/td><\/tr><tr><td><code>DoesNotExist<\/code><\/td><td>\u8282\u70b9\u4e0d\u5b58\u5728\u8be5\u6807\u7b7e<\/td><\/tr><tr><td><code>Gt \/ Lt<\/code><\/td><td>\u6570\u503c\u5927\u4e8e\u3001\u5c0f\u4e8e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u786c\u4eb2\u548c requiredDuringSchedulingIgnoredDuringExecution<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u5f3a\u5236\u7ea6\u675f\uff01\u5fc5\u987b\u6ee1\u8db3\u6761\u4ef6\u624d\u80fd\u8c03\u5ea6\uff1b\u6ca1\u6709\u7b26\u5408\u6761\u4ef6\u8282\u70b9\uff0cPod \u4e00\u76f4 Pending\u3002<\/strong> IgnoredDuringExecution \u542b\u4e49\uff1a<strong>Pod \u5df2\u7ecf\u8fd0\u884c\u4e4b\u540e\uff0c\u8282\u70b9\u6807\u7b7e\u540e\u7eed\u53d1\u751f\u53d8\u5316\uff0c\u4e0d\u4f1a\u9a71\u9010\u5df2\u7ecf\u8fd0\u884c\u7684 Pod\uff0c\u53ea\u5728\u8c03\u5ea6\u9636\u6bb5\u751f\u6548\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">yaml \u7247\u6bb5\u793a\u4f8b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>affinity:\n  nodeAffinity:\n    requiredDuringSchedulingIgnoredDuringExecution:\n      nodeSelectorTerms:\n      - matchExpressions:\n        - key: disktype\n          operator: In\n          values: &#91;\"ssd\"]\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u8f6f\u4eb2\u548c preferredDuringSchedulingIgnoredDuringExecution<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u4f18\u5148\u6ee1\u8db3\uff0c\u4e0d\u662f\u5f3a\u5236\u3002\u4f18\u5148\u8c03\u5ea6\u5230\u7b26\u5408\u6761\u4ef6\u8282\u70b9\uff1b\u6ca1\u6709\u6ee1\u8db3\u6761\u4ef6\u8282\u70b9\uff0cPod \u4f9d\u7136\u53ef\u4ee5\u8c03\u5ea6\u5176\u4ed6\u8282\u70b9\uff0c\u4e0d\u4f1a Pending\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>weight<\/code>\u6743\u91cd\uff1a1\u2011100\uff0c\u6570\u5b57\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">yaml \u7247\u6bb5\u793a\u4f8b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>affinity:\n  nodeAffinity:\n    preferredDuringSchedulingIgnoredDuringExecution:\n    - weight: 100\n      preference:\n        matchExpressions:\n        - key: gpu\n          operator: In\n          values: &#91;\"nvidia8090\"]\n    - weight: 80\n      preference:\n        matchExpressions:\n        - key: gpu\n          operator: In\n          values: &#91;\"nvidia6090\"]\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">nodeSelector\uff08\u8282\u70b9\u9009\u62e9\u5668\uff0c\u7b80\u5355\u7248\u786c\u8c03\u5ea6\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u7b80\u5355\u5f3a\u5236\u8c03\u5ea6\uff0c<strong>\u53ea\u80fd\u7cbe\u786e key=value \u5b8c\u5168\u5339\u914d\uff0c\u6ca1\u6709 In\/Exists \u590d\u6742\u8fd0\u7b97\u7b26<\/strong>\u3002\u4e0d\u5339\u914d\u5219 Pod Pending\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>spec:\n  nodeSelector:\n    disktype: ssd\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">nodeSelector VS nodeAffinity<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>nodeSelector\uff1a\u7b80\u5355\u952e\u503c\u5bf9\u786c\u5339\u914d\uff0c\u529f\u80fd\u5f31\uff1b<\/li>\n\n\n\n<li>nodeAffinity\uff1a\u652f\u6301 In\/NotIn\/Exists\uff0c\u652f\u6301\u8f6f\u786c\u4e24\u79cd\u7b56\u7565\uff0c\u6743\u91cd\uff0c\u4f01\u4e1a\u751f\u4ea7\u9996\u9009\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2728Pod \u8c03\u5ea6\u5230\u6307\u5b9a\u8282\u70b9\u7684 4 \u79cd\u65b9\u5f0f\uff08\u2b50\uff09<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>nodeName: \u8282\u70b9\u540d<\/code>\uff1a\u76f4\u63a5\u5f3a\u5236\u6307\u5b9a\u8282\u70b9\u540d\u79f0\uff0c\u7ed5\u8fc7\u8c03\u5ea6\u5668\uff1b<\/li>\n\n\n\n<li><code>nodeSelector<\/code>\uff1a\u7b80\u5355\u6807\u7b7e\u786c\u5339\u914d\uff1b<\/li>\n\n\n\n<li><code>nodeAffinity<\/code>\u8282\u70b9\u4eb2\u548c\u6027\uff08\u786c \/ \u8f6f\uff09\uff1b<\/li>\n\n\n\n<li><strong>\u6c61\u70b9 + \u5bb9\u5fcd\u5ea6<\/strong>\uff1ataint+tolerations\uff0c\u5141\u8bb8 Pod \u8c03\u5ea6\u5230\u88ab\u6c61\u70b9\u9694\u79bb\u7684\u8282\u70b9\uff1b<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u62d3\u5c55\uff1a\u8fd8\u6709 podAffinity\/podAntiAffinity\uff08Pod \u4eb2\u548c\u4e0e\u53cd\u4eb2\u548c\uff0c\u57fa\u4e8e\u5176\u4ed6 Pod \u6807\u7b7e\u8c03\u5ea6\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u6c61\u70b9 Taint &amp; \u5bb9\u5fcd\u5ea6 Tolerations\u2b50<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u6c61\u70b9 Taint\uff1a\u5b9a\u4e49\u5728\u3010\u8282\u70b9\u3011\u4e0a\uff0c\u6392\u65a5 Pod\uff1b<\/strong> <strong>\u5bb9\u5fcd\u5ea6 Tolerations\uff1a\u5b9a\u4e49\u5728\u3010Pod\u3011\u4e0a\uff0c\u8868\u793a Pod \u53ef\u4ee5\u63a5\u53d7\u8be5\u6c61\u70b9\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u903b\u8f91\uff1a\u8282\u70b9\u6253\u6c61\u70b9\uff0c\u666e\u901a Pod \u6ca1\u6709\u5bb9\u5fcd\u5ea6\uff0c\u5c31<strong>\u4e0d\u80fd\u8c03\u5ea6\u5230\u6b64\u8282\u70b9<\/strong>\uff1bPod \u914d\u7f6e\u5bf9\u5e94\u5bb9\u5fcd\u5ea6\u624d\u5141\u8bb8\u8c03\u5ea6\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6c61\u70b9\u683c\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>key=value:effect<\/code> effect \u6709\u4e09\u79cd\u6548\u679c\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u683c<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>effect<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><code>NoSchedule<\/code><\/td><td><strong>\u4ec5\u5f71\u54cd\u65b0 Pod \u8c03\u5ea6<\/strong>\uff1b\u4e0d\u5bb9\u5fcd\u7684\u65b0 Pod \u4e0d\u80fd\u8c03\u5ea6\uff1b<strong>\u5df2\u7ecf\u8fd0\u884c\u5728\u8282\u70b9\u4e0a\u7684 Pod \u4e0d\u4f1a\u88ab\u9a71\u9010<\/strong>\u3002<\/td><\/tr><tr><td><code>PreferNoSchedule<\/code><\/td><td>\u5c3d\u91cf\u907f\u514d\u8c03\u5ea6\u5230\u6b64\u8282\u70b9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">day7 K8s \u52a8\u6001 PV \u4e0e\u8282\u70b9\u4eb2\u548c\u6027\u53ca\u6c61\u70b9\u4e0e\u5bb9\u5fcd\u5ea6 \u590d\u4e60\u8d44\u6599<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001StorageClass \u52a8\u6001 PV\u2b50\u91cd\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u6982\u5ff5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">StorageClass\uff08\u5b58\u50a8\u7c7b\uff09\u662f<strong>\u96c6\u7fa4\u7ea7\u522b\u8d44\u6e90<\/strong>\uff0c\u5b9e\u73b0<strong>PV \u52a8\u6001\u4f9b\u7ed9<\/strong>\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u9759\u6001 PV\uff1a\u7ba1\u7406\u5458\u624b\u52a8\u4e00\u4e2a\u4e2a\u521b\u5efa PV\uff1b \u52a8\u6001 PV\uff1a\u7528\u6237\u53ea\u521b\u5efa PVC\uff0cStorageClass \u8c03\u7528 provisioner \u5236\u5907\u5668<strong>\u81ea\u52a8\u521b\u5efa PV \u5e76\u5b8c\u6210\u7ed1\u5b9a<\/strong>\uff0c\u4e0d\u7528\u4eba\u5de5\u7ef4\u62a4 PV\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u7c7b\u6bd4\uff1a\u5145\u7535\u5b9d\u67dc\u673a (StorageClass)\uff0c\u7528\u6237 (PVC) \u7533\u8bf7\uff0c\u67dc\u5b50\u81ea\u52a8\u5f39\u51fa\u5145\u7535\u5b9d (PV)\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6838\u5fc3\u5b57\u6bb5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>provisioner\uff08\u5236\u5907\u5668\uff09<\/strong>\uff1a\u6307\u5b9a\u5b58\u50a8\u9a71\u52a8\uff0c\u51b3\u5b9a\u7528\u4ec0\u4e48\u540e\u7aef\u5b58\u50a8 (NFS\/Ceph\/ \u4e91\u76d8 EBS)\n<ul class=\"wp-block-list\">\n<li>nfs \u793e\u533a\u5236\u5907\u5668\uff1a<code>fuseim.pri\/ifs<\/code>\uff08nfs\u2011subdir\u2011external\u2011provisioner\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><code>reclaimPolicy<\/code>\uff1aPV \u56de\u6536\u7b56\u7565 <code>Retain \/ Delete<\/code><\/li>\n\n\n\n<li><code>volumeBindingMode<\/code>\uff1a\u5377\u7ed1\u5b9a\u6a21\u5f0f\n<ul class=\"wp-block-list\">\n<li><code>Immediate<\/code>\uff1aPVC \u521b\u5efa\u5b8c\u7acb\u523b\u521b\u5efa PV \u7ed1\u5b9a\uff08NFS \u8fd9\u7c7b\u4e0e\u8282\u70b9\u65e0\u5173\u5b58\u50a8\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><code>allowVolumeExpansion<\/code>\uff1a\u662f\u5426\u652f\u6301 PVC \u6269\u5bb9\u3002<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">nfs\u2011client\u2011provisioner \u662f\u4e00\u4e2a Deployment \u63a7\u5236\u5668 Pod\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>watch \u76d1\u542c\u96c6\u7fa4 PVC \u8d44\u6e90\u4e8b\u4ef6<\/li>\n\n\n\n<li>PVC \u6307\u5b9a\u5bf9\u5e94 storageClassName\uff0c\u63a7\u5236\u5668\u6536\u5230\u8bf7\u6c42<\/li>\n\n\n\n<li>\u5728 NFS \u5171\u4eab\u76ee\u5f55\u81ea\u52a8\u521b\u5efa\u5b50\u76ee\u5f55\uff0c\u81ea\u52a8\u751f\u6210 PV\uff0c\u5b8c\u6210 PVC \u7ed1\u5b9a\u3002<\/li>\n\n\n\n<li>\u9700\u8981 ServiceAccount\u3001ClusterRole\u3001Role\u3001RBAC \u6743\u9650\uff0c\u624d\u80fd\u64cd\u4f5c PV\/PVC\/Events\u3002<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">NFS \u52a8\u6001\u5b58\u50a8\u5b8c\u6574\u7ec4\u4ef6\u6e05\u5355<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>StorageClass \u5b58\u50a8\u7c7b\u5b9a\u4e49<\/li>\n\n\n\n<li>ServiceAccount\uff1aprovisioner Pod \u4f7f\u7528\u7684\u8d26\u53f7<\/li>\n\n\n\n<li>ClusterRole + ClusterRoleBinding\uff1a\u96c6\u7fa4\u7ea7\u6743\u9650\uff0c\u7ba1\u7406 PV\/PVC\/SC\/events<\/li>\n\n\n\n<li>Role + RoleBinding\uff1a\u7528\u4e8e leader \u9009\u4e3e\uff0c\u64cd\u4f5c endpoints \u9501<\/li>\n\n\n\n<li>Deployment (nfs\u2011client\u2011provisioner)\uff1a\u771f\u6b63\u5e72\u6d3b\u7684\u63a7\u5236\u5668\uff0c\u6302\u8f7d NFS \u5171\u4eab\u76ee\u5f55<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\u65b9\u5f0f<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Deployment \u4f7f\u7528\u52a8\u6001 PV\uff1a\u76f4\u63a5\u5199 PVC\uff0c\u6307\u5b9a<code>storageClassName: nfs\u2011storage<\/code><\/li>\n\n\n\n<li>StatefulSet \u4f7f\u7528\u52a8\u6001 PV\uff1a\u4f7f\u7528<strong>volumeClaimTemplates \u5377\u7533\u8bf7\u6a21\u677f<\/strong>\uff0c\u6bcf\u4e2a Pod \u81ea\u52a8\u751f\u6210\u72ec\u7acb PVC\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>volumeClaimTemplates:\n- metadata:\n    name: mysql-data\n    annotations:\n      volume.beta.kubernetes.io\/storage-class: \"nfs\u2011storage\"\n  spec:\n    accessModes: &#91; \"ReadWriteOnce\" ]\n    resources:\n      requests:\n        storage: 200Mi\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\u91cd\u8981\uff1a\u5220\u9664 StatefulSet \u4e0d\u4f1a\u81ea\u52a8\u5220\u9664 PVC\uff01\u4e3a\u4e86\u4fdd\u62a4\u6570\u636e\uff1b<strong>\u5fc5\u987b\u624b\u52a8\u5220\u9664 PVC\uff0c\u624d\u4f1a\u89e6\u53d1 PV \u6e05\u7406<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SC \u56de\u6536\u7b56\u7565<code>Delete<\/code>\uff1a\u5220\u9664 PVC\uff0c\u81ea\u52a8\u5220 PV \u548c NFS \u5b50\u76ee\u5f55\uff1b<\/li>\n\n\n\n<li>SC \u56de\u6536\u7b56\u7565<code>Retain<\/code>\uff1a\u5220\u9664 PVC\uff0cPV \u4fdd\u7559\uff0c\u9700\u8981\u7ba1\u7406\u5458\u624b\u52a8\u5220 PV\u3001\u6e05\u7406\u5b58\u50a8\u76ee\u5f55\u3002<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6838\u5fc3\u547d\u4ee4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>kubectl get sc                  #\u67e5\u770bstorageclass\nkubectl get pv,pvc,pod\nkubectl describe sc nfs\u2011storage\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001Pod \u8c03\u5ea6\uff1a\u8282\u70b9\u4eb2\u548c\u6027 nodeAffinity<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u4f5c\u7528\uff1a\u57fa\u4e8e<strong>\u8282\u70b9\u6807\u7b7e<\/strong>\u63a7\u5236 Pod \u8c03\u5ea6\u5230\u54ea\u4e9b\u8282\u70b9\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u4e24\u79cd\u8282\u70b9\u4eb2\u548c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u683c<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7c7b\u578b<\/th><th>\u5b57\u6bb5<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>\u786c\u4eb2\u548c\uff08\u5f3a\u5236\uff09<\/strong><\/td><td><code>requiredDuringSchedulingIgnoredDuringExecution<\/code><\/td><td><strong>\u5fc5\u987b\u6ee1\u8db3\u6761\u4ef6\uff0c\u6ca1\u6709\u5339\u914d\u8282\u70b9\uff0cPod \u76f4\u63a5 Pending\uff0c\u4e0d\u8c03\u5ea6<\/strong><\/td><\/tr><tr><td><strong>\u8f6f\u4eb2\u548c\uff08\u4f18\u5148\uff09<\/strong><\/td><td><code>preferredDuringSchedulingIgnoredDuringExecution<\/code><\/td><td>\u4f18\u5148\u8c03\u5ea6\u6ee1\u8db3\u6761\u4ef6\u8282\u70b9\uff1b<strong>\u6ca1\u6709\u6ee1\u8db3\u7684\u8282\u70b9\uff0cPod \u4f9d\u7136\u53ef\u4ee5\u8c03\u5ea6\u5176\u4ed6\u8282\u70b9\uff0c\u4e0d\u4f1a Pending<\/strong>\uff1b\u652f\u6301<code>weight<\/code>\u6743\u91cd 1\u2011100\uff0c\u6570\u5b57\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u9ad8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u540e\u7f00<code>IgnoredDuringExecution<\/code>\u542b\u4e49\uff1a<strong>Pod \u5df2\u7ecf\u8fd0\u884c\u8d77\u6765\u4e4b\u540e\uff0c\u8282\u70b9\u6807\u7b7e\u53d1\u751f\u53d8\u5316\uff0c\u4e0d\u4f1a\u9a71\u9010\u5df2\u7ecf\u8fd0\u884c\u7684 Pod\uff0c\u53ea\u5728\u8c03\u5ea6\u521b\u5efa Pod \u7684\u65f6\u5019\u751f\u6548<\/strong>\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u64cd\u4f5c\u7b26\uff08matchExpressions\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u683c<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u64cd\u4f5c\u7b26<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td><code>In<\/code><\/td><td>\u8282\u70b9\u6807\u7b7e\u503c\u5728\u5217\u8868\u5185<\/td><\/tr><tr><td><code>NotIn<\/code><\/td><td>\u8282\u70b9\u6807\u7b7e\u503c\u4e0d\u5728\u5217\u8868\u5185<\/td><\/tr><tr><td><code>Exists<\/code><\/td><td>\u8282\u70b9\u5b58\u5728\u8fd9\u4e2a\u6807\u7b7e\uff0c\u4e0d\u5173\u5fc3 value<\/td><\/tr><tr><td><code>DoesNotExist<\/code><\/td><td>\u8282\u70b9\u4e0d\u5b58\u5728\u8be5\u6807\u7b7e<\/td><\/tr><tr><td><code>Gt \/ Lt<\/code><\/td><td>\u6570\u503c\u5927\u4e8e\u3001\u5c0f\u4e8e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">nodeSelector\uff08\u7b80\u5355\u8282\u70b9\u9009\u62e9\u5668\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6700\u7b80\u5355\u786c\u8c03\u5ea6\uff0ckey\u2011value<strong>\u5b8c\u5168\u4e25\u683c\u5339\u914d<\/strong>\uff0c\u6ca1\u6709\u6743\u91cd\u3001\u6ca1\u6709\u590d\u6742\u64cd\u4f5c\u7b26\u3002<\/li>\n\n\n\n<li>\u8282\u70b9\u6807\u7b7e\u5fc5\u987b\u5b8c\u5168\u7b49\u4e8e\u914d\u7f6e\uff0c\u5426\u5219 Pod Pending\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>spec:\n  nodeSelector:\n    disktype: ssd\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">nodeSelector \u5bf9\u6bd4 nodeAffinity nodeSelector\uff1a\u53ea\u80fd\u5b8c\u5168\u76f8\u7b49\u5339\u914d\uff1b nodeAffinity\uff1a\u652f\u6301 In\/NotIn\/Exists\/Gt\/Lt\u3001\u652f\u6301\u8f6f\u786c\u7b56\u7565\u3001\u652f\u6301\u6743\u91cd\uff0c\u529f\u80fd\u66f4\u5f3a\u5927\u3002<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed9\u8282\u70b9\u6253\u6807\u7b7e\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>kubectl label nodes k8s\u2011node01 disktype=ssd\nkubectl get nodes --show\u2011labels\n#\u5220\u9664\u6807\u7b7e key\u2011\nkubectl label nodes k8s\u2011node01 disktype\u2011\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">nodeAffinity \u793a\u4f8b\u7247\u6bb5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>spec:\n  affinity:\n    nodeAffinity:\n      #\u786c\u4eb2\u548c\uff0c\u5f3a\u5236\u5fc5\u987b\u6ee1\u8db3\n      requiredDuringSchedulingIgnoredDuringExecution:\n        nodeSelectorTerms:\n        - matchExpressions:\n          - key: disktype\n            operator: In\n            values: &#91;\"ssd\"]\n      #\u8f6f\u4eb2\u548c\uff0c\u4f18\u5148\n      preferredDuringSchedulingIgnoredDuringExecution:\n      - weight:100\n        preference:\n          matchExpressions:\n          - key: gpu\n            operator: In\n            values: &#91;\"nvidia8090\"]\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u6c61\u70b9 Taint &amp; \u5bb9\u5fcd\u5ea6 Tolerations\u2b50<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u6c61\u70b9 Taint\uff1a\u5b9a\u4e49\u5728\u3010\u8282\u70b9\u3011\u4e0a\uff0c\u6392\u65a5 Pod\uff1b<\/strong> <strong>\u5bb9\u5fcd\u5ea6 Tolerations\uff1a\u5b9a\u4e49\u5728\u3010Pod\u3011\u4e0a\uff0c\u5141\u8bb8 Pod \u5bb9\u5fcd\u8282\u70b9\u6c61\u70b9\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u903b\u8f91\uff1a\u8282\u70b9\u6253\u6c61\u70b9\uff0c\u666e\u901a Pod \u4f1a\u88ab\u6392\u65a5\uff1b\u53ea\u6709 Pod \u914d\u7f6e\u5bf9\u5e94\u5bb9\u5fcd\u5ea6\uff0c\u624d\u5141\u8bb8\u8c03\u5ea6\u5230\u6b64\u8282\u70b9\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6c61\u70b9\u683c\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>key=value:effect<\/code><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">effect \u4e09\u79cd\u6548\u679c<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u683c<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>effect<\/th><th>\u4f5c\u7528<\/th><\/tr><\/thead><tbody><tr><td><code>NoSchedule<\/code><\/td><td><strong>\u53ea\u5f71\u54cd\u65b0 Pod \u8c03\u5ea6<\/strong>\uff1b\u4e0d\u80fd\u5bb9\u5fcd\u6c61\u70b9\u7684\u65b0 Pod \u4e0d\u5141\u8bb8\u8c03\u5ea6\uff1b<strong>\u5df2\u7ecf\u5728\u8282\u70b9\u8fd0\u884c\u7684 Pod \u4e0d\u53d7\u4efb\u4f55\u5f71\u54cd<\/strong>\u3002<\/td><\/tr><tr><td><code>PreferNoSchedule<\/code><\/td><td>\u5c3d\u91cf\u4e0d\u8981\u8c03\u5ea6\uff0c\u975e\u5f3a\u5236\uff0c\u5b9e\u5728\u6ca1\u6709\u8282\u70b9\u8fd8\u662f\u53ef\u4ee5\u8c03\u5ea6\u8fc7\u6765\u3002<\/td><\/tr><tr><td><code>NoExecute<\/code><\/td><td>\u6700\u4e25\u683c\uff1b<strong>\u4e0d\u4ec5\u65b0 Pod \u4e0d\u80fd\u8c03\u5ea6\uff1b\u5df2\u7ecf\u8fd0\u884c\u5728\u6b64\u8282\u70b9\u4e14\u4e0d\u5bb9\u5fcd\u8be5\u6c61\u70b9\u7684 Pod \u4f1a\u88ab\u9a71\u9010\uff08\u8d76\u8d70\uff09<\/strong>\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff1amaster \u63a7\u5236\u5e73\u9762\u8282\u70b9\u9ed8\u8ba4\u81ea\u5e26\u6c61\u70b9\uff0c\u963b\u6b62\u4e1a\u52a1 Pod \u8c03\u5ea6\u5230 master\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6c61\u70b9\u64cd\u4f5c\u547d\u4ee4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u7ed9\u8282\u70b9\u589e\u52a0\u6c61\u70b9\nkubectl taint node k8s\u2011node01 gpu=nvidia4090:NoSchedule\n#\u5220\u9664\u6c61\u70b9\uff0c\u672b\u5c3e\u52a0 \"-\"\nkubectl taint node k8s\u2011node01 gpu=nvidia4090:NoSchedule\u2011\n#\u67e5\u770b\u8282\u70b9\u6c61\u70b9\nkubectl describe node k8s\u2011node01 | grep Taints\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Pod \u5bb9\u5fcd\u5ea6 Tolerations<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u79cd operator\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>Equal<\/code>\uff1akey\u3001value\u3001effect \u4e09\u8005\u5fc5\u987b\u5168\u90e8\u5b8c\u5168\u5339\u914d<\/li>\n\n\n\n<li><code>Exists<\/code>\uff1a\u53ea\u5339\u914d key+effect\uff0c<strong>\u5ffd\u7565 value \u503c<\/strong>\uff08\u5e38\u7528\u4e8e master \u8282\u70b9\u5bb9\u5fcd\uff09<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">yaml \u7247\u6bb5\u793a\u4f8b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>spec:\n  tolerations:\n  - key: \"gpu\"\n    operator: \"Equal\"\n    value: \"nvidia4090\"\n    effect: \"NoSchedule\"\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u5bb9\u5fcd master \u8282\u70b9\u6c61\u70b9\u793a\u4f8b\uff08Exists\uff09<\/p>\n<\/blockquote>\n\n\n\n<pre class=\"wp-block-code\"><code>tolerations:\n- key: \"node\u2011role.kubernetes.io\/master\"\n  operator: \"Exists\"\n  effect: \"NoSchedule\"\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\u91cd\u70b9\u533a\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8282\u70b9\u4eb2\u548c\u6027 nodeAffinity\uff1aPod \u4e3b\u52a8\u6311\u9009\u60f3\u8981\u53bb\u54ea\u4e9b\u8282\u70b9\uff08\u6b63\u5411\u9009\u62e9\uff09<\/strong><\/li>\n\n\n\n<li><strong>\u6c61\u70b9 Taint\uff1a\u8282\u70b9\u62d2\u7edd\u4e0d\u60f3\u8981\u7684 Pod\uff1b\u5bb9\u5fcd\u5ea6 Tolerations\uff1aPod \u83b7\u5f97\u8bb8\u53ef\uff0c\u53ef\u4ee5\u7a81\u7834\u8282\u70b9\u6392\u65a5\uff08\u53cd\u5411\u653e\u884c\uff09<\/strong> \u60f3\u8981\u5f3a\u5236 Pod \u8dd1\u5230\u67d0\u7279\u6b8a\u8282\u70b9\uff1a<strong>\u4eb2\u548c\u6027 + \u5bb9\u5fcd\u5ea6\u4e24\u8005\u914d\u5408<\/strong>\uff1b\u5bb9\u5fcd\u53ea\u662f\u6d88\u9664\u6392\u65a5\uff0c\u4e0d\u4f1a\u4e3b\u52a8\u9009\u62e9\u8282\u70b9\u3002<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001Pod \u8c03\u5ea6\u5230\u6307\u5b9a\u8282\u70b9\u7684 5 \u79cd\u65b9\u5f0f\uff08<strong>\u2b50<\/strong>\uff09<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>nodeName<\/strong>\uff1a\u76f4\u63a5\u5199\u8282\u70b9\u540d\u5b57\uff0c\u5f3a\u5236\u8c03\u5ea6\uff0c\u7ed5\u8fc7\u8c03\u5ea6\u5668\uff1b<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>spec:\n  nodeName: k8s\u2011node01\n<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>nodeSelector<\/strong>\uff1a\u7b80\u5355\u6807\u7b7e\u786c\u5339\u914d<\/li>\n\n\n\n<li><strong>nodeAffinity \u8282\u70b9\u4eb2\u548c\u6027<\/strong>\uff1a\u8f6f\u786c\u7b56\u7565\u3001\u6743\u91cd\u3001\u4e30\u5bcc\u64cd\u4f5c\u7b26<\/li>\n\n\n\n<li><strong>podAffinity \/podAntiAffinity Pod \u4eb2\u548c \/ \u53cd\u4eb2\u548c<\/strong>\uff1a\u57fa\u4e8e\u5176\u4ed6 Pod \u6807\u7b7e\u8c03\u5ea6\uff08\u628a Pod \u8c03\u5ea6\u5230\u548c\u522b\u7684 Pod \u76f8\u540c \/ \u4e0d\u540c\u8282\u70b9\uff09<\/li>\n\n\n\n<li><strong>Taint + Tolerations \u6c61\u70b9\u5bb9\u5fcd<\/strong>\uff1a\u89e3\u9664\u8282\u70b9\u6392\u65a5\uff0c\u914d\u5408\u4eb2\u548c\u6027\u4f7f\u7528\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u6c47\u603b<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>StorageClass \u4f5c\u7528\uff1f\u52a8\u6001 PV \u5de5\u4f5c\u6d41\u7a0b\uff1f<\/strong> StorageClass \u5b9e\u73b0 PV \u52a8\u6001\u4f9b\u7ed9\uff0c\u4e0d\u7528\u7ba1\u7406\u5458\u624b\u52a8\u521b\u5efa PV\uff1b \u6d41\u7a0b\uff1a\u7528\u6237\u521b\u5efa PVC\uff0c\u6307\u5b9a storageClassName \u2192 provisioner \u63a7\u5236\u5668\u76d1\u542c PVC \u4e8b\u4ef6 \u2192 \u81ea\u52a8\u521b\u5efa\u5e95\u5c42\u5b58\u50a8\u8d44\u6e90\u3001\u81ea\u52a8\u751f\u6210 PV \u2192 PV \u4e0e PVC \u81ea\u52a8\u7ed1\u5b9a\u3002<\/li>\n\n\n\n<li>StatefulSet \u4f7f\u7528 volumeClaimTemplates \u6ce8\u610f\u70b9\uff1f volumeClaimTemplates \u4e3a\u6bcf\u4e00\u4e2a Pod \u81ea\u52a8\u751f\u6210\u72ec\u7acb PVC\uff1b<strong>\u5220\u9664 StatefulSet \u4e0d\u4f1a\u5220\u9664 PVC\uff0c\u9632\u6b62\u4e22\u5931\u4e1a\u52a1\u6570\u636e\uff1b\u9700\u8981\u624b\u52a8\u5220\u9664 PVC \u624d\u4f1a\u89e6\u53d1 PV \u56de\u6536\u3002<\/strong><\/li>\n\n\n\n<li>nodeAffinity \u4e2d required \u548c preferred \u533a\u522b\uff1f<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>required\uff08\u786c\u4eb2\u548c\uff09\uff1a\u5f3a\u5236\u6761\u4ef6\uff0c\u4e0d\u6ee1\u8db3 Pod \u76f4\u63a5 Pending\uff0c\u65e0\u6cd5\u8c03\u5ea6\uff1b<\/li>\n\n\n\n<li>preferred\uff08\u8f6f\u4eb2\u548c\uff09\uff1a\u4f18\u5148\u6ee1\u8db3\uff0c\u4e0d\u6ee1\u8db3\u4e5f\u80fd\u8c03\u5ea6\u5176\u4ed6\u8282\u70b9\uff0c\u4e0d\u4f1a Pending\uff0cweight \u8bbe\u7f6e\u4f18\u5148\u7ea7\u3002 \u540e\u7f00 IgnoredDuringExecution\uff1a<strong>\u4ec5\u8c03\u5ea6\u751f\u6548\uff0c\u8282\u70b9\u6807\u7b7e\u540e\u671f\u53d8\u5316\u4e0d\u4f1a\u9a71\u9010\u5df2\u7ecf\u8fd0\u884c\u7684 Pod<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>Taint \u4e09\u79cd effect \u533a\u522b\uff1f<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NoSchedule\uff1a\u4ec5\u963b\u6b62\u65b0 Pod \u8c03\u5ea6\uff1b\u5df2\u8fd0\u884c Pod \u4e0d\u53d7\u5f71\u54cd<\/li>\n\n\n\n<li>PreferNoSchedule\uff1a\u5c3d\u91cf\u907f\u514d\uff0c\u975e\u5f3a\u5236<\/li>\n\n\n\n<li>NoExecute\uff1a\u65b0 Pod \u7981\u6b62\u8c03\u5ea6\uff0c\u540c\u65f6\u9a71\u9010\u8282\u70b9\u4e0a\u4e0d\u5339\u914d\u5bb9\u5fcd\u5ea6\u7684\u6b63\u5728\u8fd0\u884c Pod\u3002<\/li>\n<\/ul>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>\u6c61\u70b9\u4e0e\u5bb9\u5fcd\u5ea6\u548c\u8282\u70b9\u4eb2\u548c\u7684\u533a\u522b\uff1f \u8282\u70b9\u4eb2\u548c\uff1aPod \u4e3b\u52a8\u6311\u9009\u8282\u70b9\uff08\u6b63\u5411\uff0c\u6211\u8981\u53bb\u54ea\u91cc\uff09\uff1b \u6c61\u70b9\uff1a\u8282\u70b9\u6392\u65a5 Pod\uff1b\u5bb9\u5fcd\u5ea6\uff1aPod \u62ff\u5230\u8bb8\u53ef\uff0c\u6d88\u9664\u6392\u65a5\uff08\u53cd\u5411\uff0c\u5141\u8bb8\u6211\u53ef\u4ee5\u53bb\u88ab\u6392\u65a5\u7684\u8282\u70b9\uff09\u3002\u5bb9\u5fcd\u5ea6<strong>\u4e0d\u4f1a\u4e3b\u52a8\u9009\u62e9\u8282\u70b9\uff0c\u4ec5\u89e3\u9664\u6392\u65a5\uff0c\u4e00\u822c\u8981\u914d\u5408\u4eb2\u548c\u6027\u4f7f\u7528<\/strong>\u3002<\/li>\n\n\n\n<li>Pod \u8c03\u5ea6\u5230\u6307\u5b9a\u8282\u70b9\u6709\u54ea\u51e0\u79cd\u65b9\u5f0f\uff1f nodeName\u3001nodeSelector\u3001nodeAffinity\u3001podAffinity\/podAntiAffinity\u3001taint+tolerations\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u6838\u5fc3\u547d\u4ee4\u6c47\u603b<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u5b58\u50a8\u7c7b\nkubectl get sc\nkubectl describe sc xxx\n\n#\u8282\u70b9\u6807\u7b7e\nkubectl label nodes &lt;node&gt; key=value\nkubectl get nodes --show\u2011labels\n\n#\u6c61\u70b9\nkubectl taint node xxx key=val:effect\nkubectl describe node xxx | grep Taints\n\n#\u6392\u9519\u770b\u8c03\u5ea6\u4e8b\u4ef6\nkubectl describe pod xxx<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001StorageClass \u52a8\u6001 PV\uff08\u5b58\u50a8\u7c7b\uff09\u2b50 1. \u6982\u5ff5 StorageClass \u662f\u96c6\u7fa4\u7ea7\u522b\u8d44\u6e90\uff0c\u5b9a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-104","post","type-post","status-publish","format-standard","hentry","category-kubernetes"],"_links":{"self":[{"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=104"}],"version-history":[{"count":4,"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=\/wp\/v2\/posts\/104\/revisions"}],"predecessor-version":[{"id":188,"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=\/wp\/v2\/posts\/104\/revisions\/188"}],"wp:attachment":[{"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaoxindong.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}