{"id":9159,"date":"2023-01-18T19:18:11","date_gmt":"2023-01-18T11:18:11","guid":{"rendered":"http:\/\/123.57.164.21\/?p=9159"},"modified":"2023-01-18T19:18:11","modified_gmt":"2023-01-18T11:18:11","slug":"kubernetesk8s-%e9%85%8d%e7%bd%aeconfigmap","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=9159","title":{"rendered":"kubernetes(k8s) &#8211; \u914d\u7f6eConfigMap"},"content":{"rendered":"\n<p><strong>\u6982\u5ff5<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>ConfigMap\u7684\u529f\u80fd\u5728k8s1.2\u7248\u672c\u4e2d\u5f15\u5165\u7684\uff0c\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u4f1a\u4ece\u914d\u7f6e\u6587\u4ef6\uff0c\u547d\u4ee4\u884c\u53c2\u6570\u6216\u73af\u5883\u53d8\u91cf\u4e2d\u8bfb\u53d6\u914d\u7f6e\u4fe1\u606f\u3002ConfigMap API\u4f1a\u7ed9\u6211\u4eec\u63d0\u4f9b\u4e86\u5411\u5bb9\u5668\u4e2d\u6ce8\u5165\u914d\u7f6e\u4fe1\u606f\u7684\u673a\u5236\uff0cConigMap\u53ef\u4ee5\u88ab\u7528\u6765\u4fdd\u5b58\u5355\u4e2a\u5c5e\u6027\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u4fdd\u5b58\u6574\u4e2a\u914d\u7f6e\u6587\u4ef6\u6216\u8005JSON\u4e8c\u8fdb\u5236\u7684\u5bf9\u8c61<\/p>\n\n\n\n<p><strong>1. \u4e3a\u4ec0\u4e48\u9700\u8981configmap<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u6211\u4eec\u7ecf\u5e38\u90fd\u9700\u8981\u4e3a\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u914d\u7f6e\u4e00\u4e9b\u7279\u6b8a\u7684\u6570\u636e\uff0c\u6bd4\u5982\u5bc6\u94a5\u3001Token \u3001\u6570\u636e\u5e93\u8fde\u63a5\u5730\u5740\u6216\u8005\u5176\u4ed6\u79c1\u5bc6\u7684\u4fe1\u606f\u3002\u4f60\u7684\u5e94\u7528\u53ef\u80fd\u4f1a\u4f7f\u7528\u4e00\u4e9b\u7279\u5b9a\u7684\u914d\u7f6e\u6587\u4ef6\u8fdb\u884c\u914d\u7f6e\uff0c\u6bd4\u5982settings.py\u6587\u4ef6\uff0c\u6216\u8005\u6211\u4eec\u53ef\u4ee5\u5728\u5e94\u7528\u7684\u4e1a\u52a1\u903b\u8f91\u4e2d\u8bfb\u53d6\u73af\u5883\u53d8\u91cf\u6216\u8005\u67d0\u4e9b\u6807\u5fd7\u6765\u5904\u7406\u914d\u7f6e\u4fe1\u606f\u3002\u6211\u4eec\u8981\u505a\u5230\u8fd9\u4e2a\uff0c\u6709\u597d\u591a\u79cd\u65b9\u6848\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n<ul><li>\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5728\u6253\u5305\u955c\u50cf\u7684\u65f6\u5019\u5199\u5728\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u91cc\u9762\uff0c\u4f46\u662f\u8fd9\u79cd\u65b9\u5f0f\u7684\u574f\u5904\u663e\u800c\u6613\u89c1\u800c\u4e14\u975e\u5e38\u660e\u663e\u3002<\/li><li>\u6211\u4eec\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u91cc\u9762\u901a\u8fc7 env \u73af\u5883\u53d8\u91cf\u4f20\u5165\uff0c\u4f46\u662f\u8fd9\u6837\u7684\u8bdd\u6211\u4eec\u8981\u4fee\u6539 env \u5c31\u5fc5\u987b\u53bb\u4fee\u6539 yaml \u6587\u4ef6\uff0c\u800c\u4e14\u9700\u8981\u91cd\u542f\u6240\u6709\u7684 container \u624d\u884c\u3002(\u901a\u8fc7env\u8bbe\u7f6e\u4e0d\u540c\u7684\u73af\u5883\uff0c\u4f7f\u7528\u4e0d\u540c\u7684yaml\u914d\u7f6e\u6587\u4ef6)<\/li><li>\u6211\u4eec\u53ef\u4ee5\u5728\u5e94\u7528\u542f\u52a8\u7684\u65f6\u5019\u53bb\u6570\u636e\u5e93\u6216\u8005\u67d0\u4e2a\u7279\u5b9a\u7684\u5730\u65b9\u62ff\uff0c\u6ca1\u95ee\u9898\uff01\u4f46\u662f\u7b2c\u4e00\uff0c\u5b9e\u73b0\u8d77\u6765\u9ebb\u70e6\uff1b\u7b2c\u4e8c\uff0c\u5982\u679c\u914d\u7f6e\u7684\u5730\u65b9\u53d8\u4e86\u600e\u4e48\u529e\uff1f<\/li><\/ul>\n\n\n\n<p>\u5f53\u7136\u8fd8\u6709\u522b\u7684\u65b9\u6848\uff0c\u4f46\u662f\u5404\u79cd\u65b9\u6848\u90fd\u6709\u5404\u81ea\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u800c\u4e14\uff0c\u8fd8\u6709\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\uff0c\u5982\u679c\u8bf4\u6211\u7684\u4e00\u4e2a\u914d\u7f6e\uff0c\u662f\u8981\u591a\u4e2a\u5e94\u7528\u4e00\u8d77\u4f7f\u7528\u7684\uff0c\u4ee5\u4e0a\u9664\u4e86\u7b2c\u4e09\u79cd\u65b9\u6848\uff0c\u90fd\u6ca1\u529e\u6cd5\u8fdb\u884c\u914d\u7f6e\u7684\u5171\u4eab\uff0c\u5c31\u662f\u8bf4\u6211\u5982\u679c\u8981\u6539\u914d\u7f6e\u7684\u8bdd\uff0c\u90a3\u5f97\u4e00\u4e2a\u4e00\u4e2a\u624b\u52a8\u6539\u3002\u5047\u5982\u6211\u4eec\u6709 100 \u4e2a\u5e94\u7528\uff0c\u5c31\u5f97\u6539 100 \u4efd\u914d\u7f6e\uff0c\u4ee5\u6b64\u7c7b\u63a8\u2026\u2026<\/p>\n\n\n\n<p>kubernetes \u5bf9\u8fd9\u4e2a\u95ee\u9898\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f88\u597d\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5c31\u662f\u7528 ConfigMap \u548c Secret\u3002<\/p>\n\n\n\n<p>\u6709\u5f88\u591a\u79cd\u65b9\u6848\u53ef\u4ee5\u5c06\u9879\u76ee \u548c \u9879\u76ee\u7684\u914d\u7f6e\u89e3\u8026\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-1024x406.png\" alt=\"\" class=\"wp-image-9160\" width=\"552\" height=\"219\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-1024x406.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-300x119.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-768x305.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-830x329.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-230x91.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-350x139.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9-480x190.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-9.png 1392w\" sizes=\"(max-width: 552px) 100vw, 552px\" \/><\/figure><\/div>\n\n\n\n<p>configMap\u5c31\u662f\u8ba9\u9879\u76ee\u955c\u50cf \u548c \u914d\u7f6e\u3001\u73af\u5883\u53d8\u91cf\u3001\u914d\u7f6e\u6587\u4ef6\u7b49\u914d\u7f6e\u6570\u636e \u89e3\u8026\uff0c\u4fdd\u8bc1\u955c\u50cf\u7684\u53ef\u79fb\u690d\u6027<\/p>\n\n\n\n<ul><li>ConfigMap\u529f\u80fd\u5728kubernetes1.2\u7248\u672c\u4e2d\u5f15\u5165\uff0c\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u4f1a\u4ece\u914d\u7f6e\u6587\u4ef6\uff0c\u547d\u4ee4\u884c\u53c2\u6570\u6216\u73af\u5883\u53d8\u91cf\u4e2d\u8bfb\u53d6\u914d\u7f6e\u4fe1\u606f\uff0cConfigAPI\u7ed9\u6211\u4eec\u63d0\u4f9b\u4e86\u5411\u5bb9\u5668\u4e2d\u6ce8\u5165\u914d\u7f6e\u4fe1\u606f\u7684\u673a\u5236\uff0cConfigMap\u53ef\u4ee5\u88ab\u7528\u6765\u4fdd\u5b58\u5355\u4e2a\u5c5e\u6027\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u4fdd\u5b58\u6574\u4e2a\u914d\u7f6e\u6587\u4ef6\u6216\u8005JSON\u4e8c\u8fdb\u5236\u5927\u5bf9\u8c61\u3002<\/li><li>ConfigMap\u5bf9\u50cf\u662f\u4e00\u7cfb\u5217\u914d\u7f6e\u7684\u96c6\u5408\uff0ck8s\u4f1a\u5c06\u8fd9\u4e00\u96c6\u5408\u6ce8\u5165\u5230\u5bf9\u5e94\u7684Pod\u5bf9\u50cf\u4e2d\uff0c\u5e76\u4e3a\u5bb9\u5668\u6210\u529f\u542f\u52a8\u4f7f\u7528\u3002\u6ce8\u5165\u7684\u65b9\u5f0f\u4e00\u822c\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u6302\u8f7d\u5b58\u50a8\u5377\uff0c\u4e00\u79cd\u662f\u4f20\u9012\u53d8\u91cf\u3002ConfigMap\u88ab\u5f15\u7528\u4e4b\u524d\u5fc5\u987b\u5b58\u5728\uff0c\u5c5e\u4e8e\u540d\u79f0\u7a7a\u95f4\u7ea7\u522b\uff0c\u4e0d\u80fd\u8de8\u540d\u79f0\u7a7a\u95f4\u4f7f\u7528\uff0c\u5185\u5bb9\u660e\u6587\u663e\u793a\u3002ConfigMap\u5185\u5bb9\u4fee\u6539\u540e\uff0c\u5bf9\u5e94\u7684pod\u5fc5\u987b\u91cd\u542f\u6216\u8005\u91cd\u65b0\u52a0\u8f7d\u914d\u7f6e\uff08\u652f\u6301\u70ed\u66f4\u65b0\u7684\u5e94\u7528\uff0c\u4e0d\u9700\u8981\u91cd\u542f\uff09\u3002<\/li><li>Secret\u7c7b\u4f3c\u4e8eConfigMap\uff0c\u662f\u7528Base64\u52a0\u5bc6\uff0c\u5bc6\u6587\u663e\u793a\uff0c\u4e00\u822c\u5b58\u653e\u654f\u611f\u6570\u636e\u3002\u4e00\u822c\u6709\u4e24\u79cd\u521b\u5efa\u65b9\u5f0f\uff0c\u4e00\u79cd\u662f\u4f7f\u7528kubectl create\u521b\u5efa\uff0c\u4e00\u79cd\u662f\u7528Secret\u914d\u7f6e\u6587\u4ef6\u3002<\/li><\/ul>\n\n\n\n<p><strong>2. \u5e94\u7528\u573a\u666f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u5e94\u7528\u573a\u666f\uff1a\u955c\u50cf\u5f80\u5f80\u662f\u4e00\u4e2a\u5e94\u7528\u7684\u57fa\u7840\uff0c\u8fd8\u6709\u5f88\u591a\u9700\u8981\u81ea\u5b9a\u4e49\u7684\u53c2\u6570\u6216\u914d\u7f6e\uff0c\u4f8b\u5982\u8d44\u6e90\u7684\u6d88\u8017\u3001\u65e5\u5fd7\u7684\u4f4d\u7f6e\u7ea7\u522b\u7b49\u7b49\uff0c\u8fd9\u4e9b\u914d\u7f6e\u53ef\u80fd\u4f1a\u6709\u5f88\u591a\uff0c\u56e0\u6b64\u4e0d\u80fd\u653e\u5165\u955c\u50cf\u4e2d\uff0cKubernetes\u4e2d\u63d0\u4f9b\u4e86Configmap\u6765\u5b9e\u73b0\u5411\u5bb9\u5668\u4e2d\u63d0\u4f9b\u914d\u7f6e\u6587\u4ef6\u6216\u73af\u5883\u53d8\u91cf\u6765\u5b9e\u73b0\u4e0d\u540c\u914d\u7f6e\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u955c\u50cf\u914d\u7f6e\u4e0e\u955c\u50cf\u672c\u8eab\u89e3\u8026\uff0c\u4f7f\u5bb9\u5668\u5e94\u7528\u505a\u5230\u4e0d\u4f9d\u8d56\u4e8e\u73af\u5883\u914d\u7f6e\u3002<\/p>\n\n\n\n<p>\u5411\u5bb9\u5668\u4f20\u9012\u53c2\u6570\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-1024x170.png\" alt=\"\" class=\"wp-image-9161\" width=\"591\" height=\"97\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-1024x170.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-300x50.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-830x138.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-230x38.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-350x58.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10-480x80.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-10.png 1418w\" sizes=\"(max-width: 591px) 100vw, 591px\" \/><\/figure><\/div>\n\n\n\n<p>Kubernetes\u5982\u679c\u9700\u8981\u5411\u5bb9\u5668\u4f20\u9012\u53c2\u6570\uff0c\u53ef\u4ee5\u5728Yaml\u6587\u4ef6\u4e2d\u901a\u8fc7command\u548cargs\u6216\u8005\u73af\u5883\u53d8\u91cf\u7684\u65b9\u5f0f\u5b9e\u73b0\u3002\uff08\u4e0d\u4f7f\u7528configMap\u7684\u573a\u666f\uff09<\/p>\n\n\n\n<p>\u793a\u4f8b: demo-mpconft.yaml<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">apiVersion: v1\nkind: Pod\nmetadata:\n  name: print-mapenv\nspec:\n  containers:\n  - name: env-print-demo\n    image: centos:7.9.2009\n    imagePullPolicy: IfNotPresent\n    env: #\u6dfb\u52a0\u4e86\u4e00\u4e2a\u73af\u5883\u53d8\u91cf\n    - name: GREETING\n      value: \"hello\"\n    - name: HONORIFIC\n      value: \"welcome\"\n    - name: NAME\n      value: \"Kubernetes is a good product\"\n    command: \n    - \"echo\" #\u6267\u884cecho\u547d\u4ee4\n    args: \n    - \"$(GREETING) $(HONORIFIC) $(NAME)\"  #\u547d\u4ee4\u4e2d\u4f20\u5165\u4e86\u8fd9\u4e9b\u53c2\u6570\uff0c\u5f15\u7528\u7684\u5c31\u662f\u4e0a\u9762env\u4e2d\u5b9a\u4e49\u7684<\/pre>\n\n\n\n<p>\u7b49\u5f85\u4e00\u4f1a\u513f\u65f6\u95f4\u540e\uff0c\u770b\u5230STATUS\u662fCompleted\uff0cReady\u662f0\/1\uff0cpod\u4e2d\u7684\u5bb9\u5668\u5df2\u7ecf\u7ed3\u675f\u4e86 \u56e0\u4e3a\u6211\u4eecyaml\u6587\u4ef6\u91cc\u5c31\u8981\u6c42\u5bb9\u5668\u8fd0\u884c\u4ee5\u540e\u53ea\u6267\u884c\u4e00\u6761\u6307\u4ee4\uff0c\u6267\u884c\u5b8c\u6210\u540e\u5c31\u7ed3\u675f\u4e86<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u521b\u5efa\u540e\uff0c\u547d\u4ee4 echo hello welcome Kubernetes is a good product \u5c06\u5728\u5bb9\u5668\u4e2d\u8fd0\u884c,\u4e5f\u5c31\u662f\u73af\u5883\u53d8\u91cf\u4e2d\u7684\u503c\u88ab\u4f20\u9012\u5230\u4e86\u5bb9\u5668\u4e2d\u3002\n# \u67e5\u770bpod\u5c31\u53ef\u4ee5\u770b\u51fa\n# [root@k8s-master yaml]# kubectl logs print-mapenv\nhello welcome Kubernetes is a good product<\/pre>\n\n\n\n<p>\u73b0\u5728\u6d4b\u8bd5\u7684\u8fd9\u79cd\u60c5\u51b5\u662f\u5c06\u914d\u7f6e\u6570\u636e\u548cyaml\u8d44\u6e90\u6587\u4ef6\u8026\u5408\u5728\u4e00\u8d77\u4e86\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u4f7f\u7528configMap\u5206\u79bb<\/p>\n\n\n\n<p><strong>3. \u521b\u5efaConfigMap<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>3.1 help\u6587\u6863<\/strong><\/p>\n\n\n\n<p>\u901a\u8fc7hepl\u547d\u4ee4\u53ef\u4ee5\u67e5\u770bconfigmap\u7684\u7528\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># [root@k8s-master-155-221 configmap]# kubectl create  configmap --help\n......\nAliases:\nconfigmap, cm  #\u53ef\u4ee5\u4f7f\u7528cm\u66ff\u4ee3\n\nExamples:\n  # Create a new configmap named my-config based on folder bar\n  # \u4ece\u76ee\u5f55\u521b\u5efa  \u6587\u4ef6\u540d\u79f0\u4e3a\u952e  \u6587\u4ef6\u5185\u5bb9\u4e3a\u503c\n  kubectl create configmap my-config --from-file=path\/to\/bar  \n\n  # Create a new configmap named my-config with specified keys instead of file basenames on disk\n  # \u4ece\u6587\u4ef6\u521b\u5efa key1\u4e3a\u952e \u6587\u4ef6\u5185\u5bb9\u4e3a\u503c\n  kubectl create configmap my-config --from-file=key1=\/path\/to\/bar\/file1.txt --from-file=key2=\/path\/to\/bar\/file2.txt \n\n  # Create a new configmap named my-config with key1=config1 and key2=config2\n  # \u76f4\u63a5\u547d\u4ee4\u884c\u7ed9\u5b9a,\u952e\u4e3akey1 \u503c\u4e3aconfig1\n  kubectl create configmap my-config --from-literal=key1=config1 --from-literal=key2=config2   \n\n  # Create a new configmap named my-config from the key=value pairs in the file\n  # \u4ece\u6587\u4ef6\u521b\u5efa \u6587\u4ef6\u540d\u4e3a\u952e \u6587\u4ef6\u5185\u5bb9\u4e3a\u503c\n  kubectl create configmap my-config --from-file=path\/to\/bar   \n\n  # Create a new configmap named my-config from an env file\n  kubectl create configmap my-config --from-env-file=path\/to\/bar.env\n\n  Usage:\n  kubectl create configmap NAME [--from-file=[key=]source] [--from-literal=key1=value1] [--dry-run=server|client|none]\n[options]\n\nUse \"kubectl options\" for a list of global command-line options (applies to all commands).<\/pre>\n\n\n\n<p><strong>3.2 \u4f7f\u7528\u76ee\u5f55\u521b\u5efa<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u6307\u5b9a\u76ee\u5f55\n# \u521b\u5efaconfigmap\u76ee\u5f55\n# ls \/opt\/yaml\/configmap\n\n# \u521b\u5efagame.properties\u6587\u4ef6\nenemies=aliens\nlives=3\nenemies.cheat=true\nenemies.cheat.level=noGoodRotten\nsecret.code.passphrase=UUDDLRLRBABAS\nsecret.code.allowed=true\nsecret.code.lives=30\n\n# ui.propertes\u6587\u4ef6\ncolor.good=purple\ncolor.bad=yellow\nallow.textmode=true\nhow.nice.to.look=fairlyNice\n# \u521b\u5efaconfigmap \uff0c\u6307\u4ee4\n# game-config-test \uff1aconfigmap\u7684\u540d\u79f0\n# --from-file\uff1a\u6307\u5b9a\u5728\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u90fd\u4f1a\u88ab\u7528\u5728 ConfigMap \u91cc\u9762\u521b\u5efa\u4e00\u4e2a\u952e\u503c\u5bf9\uff0c\u952e\u7684\u540d\u5b57\u5c31\u662f\u6587\u4ef6\u540d\uff0c\u503c\u5c31\u662f\u6587\u4ef6\u7684\u5185\u5bb9\n# [root@k8s-master configmap]# kubectl create configmap game-config-test --from-file=\/opt\/yaml\/configmap\nconfigmap\/game-config-test created\n\n# \u67e5\u770bconfigmap\u6587\u4ef6\n# [root@k8s-master configmap]# kubectl get cm \nNAME               DATA   AGE\ngame-config-test   2      24s\n\n\n# \u67e5\u770b\u8be6\u7ec6\u4fe1\u606f -o \u6307\u5b9a\u8f93\u51fa\u683c\u5f0f\u4e3ayaml\n# [root@k8s-master configmap]# kubectl get cm game-config-test -o yaml\napiVersion: v1\ndata:\n  game.properties: |   # | \u524d\u662f\u6587\u4ef6\u540d\uff1b | \u540e\u662f\u6587\u4ef6\u5185\u5bb9\n    enemies=aliens\n    lives=3\n    enemies.cheat=true\n    enemies.cheat.level=noGoodRotten\n    secret.code.passphrase=UUDDLRLRBABAS\n    secret.code.allowed=true\n    secret.code.lives=30\n  ui.propertes: |     # | \u524d\u662f\u6587\u4ef6\u540d\uff1b | \u540e\u662f\u6587\u4ef6\u5185\u5bb9\n    color.good=purple\n    color.bad=yellow\n    allow.textmode=true\n    how.nice.to.look=fairlyNice\nkind: ConfigMap      # \u7c7b\u578b\nmetadata:\n  creationTimestamp: \"2021-06-04T06:45:42Z\"\n  name: game-config-test   # \u540d\u79f0\n  namespace: default       # \u547d\u540d\u7a7a\u95f4\n  resourceVersion: \"625034\"\n  uid: 8a7f0064-f816-4e70-a367-bd37371dcaec<\/pre>\n\n\n\n<p>data\u5c31\u662f\u6570\u636e\u533a\uff0c\u5b58\u653e\u7684\u5c31\u662f\u914d\u7f6e\u6587\u4ef6\uff0ckey\u5c31\u662f\u6587\u4ef6\u540d\uff0c\u540e\u9762&#8221;|&#8221;\u540e\u8ddf\u7684\u5c31\u662f\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\uff0c\u8fd9\u4e2a\u662fyaml\u8bed\u6cd5<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u63cf\u8ff0configmap\n# [root@k8s-master configmap]# kubectl describe cm game-config-test -n default\nName:         game-config-test\nNamespace:    default\nLabels:       &lt;none>\nAnnotations:  &lt;none>\n\nData\n====\ngame.properties:\n----\nenemies=aliens\nlives=3\nenemies.cheat=true\nenemies.cheat.level=noGoodRotten\nsecret.code.passphrase=UUDDLRLRBABAS\nsecret.code.allowed=true\nsecret.code.lives=30\n\nui.propertes:\n----\ncolor.good=purple\ncolor.bad=yellow\nallow.textmode=true\nhow.nice.to.look=fairlyNice\n\nEvents:  &lt;none><\/pre>\n\n\n\n<p>\u6e05\u7a7a\u73af\u5883 [root@k8s-master configmap]# kubectl delete cm\/game-config-test -n default<\/p>\n\n\n\n<p><strong>3.3 \u6839\u636e\u6587\u4ef6\u521b\u5efa<\/strong><\/p>\n\n\n\n<p>\u53ea\u9700\u8981\u6307\u5b9a\u4e3a\u4e00\u4e2a\u6587\u4ef6\u5c31\u53ef\u4ee5\u4ece\u5355\u4e2a\u6587\u4ef6\u4e2d\u521b\u5efaConfigMap<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u6307\u5b9a\u521b\u5efa\u7684\u6587\u4ef6\u5373\u53ef\nkubectl create configmap game-config-test2 --from-file=\/opt\/yaml\/configmap\/game.properties\n\n#\u67e5\u770b\nkubectl get cm game-config-test2 -o yaml<\/pre>\n\n\n\n<p><code>--from-file<\/code>\u8fd9\u4e2a\u53c2\u6570\u53ef\u4ee5\u4f7f\u7528\u591a\u6b21\uff0c\u53ef\u4ee5\u5206\u522b\u6307\u5b9agame.properties,ui.propertes\uff0c\u6548\u679c\u548c\u6307\u5b9a\u6574\u4e2a\u76ee\u5f55\u662f\u4e00\u6837\u7684\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># [root@k8s-master configmap]# kubectl create configmap game-config-test2  --from-file=\/opt\/yaml\/configmap\/game.properties --from-file=\/opt\/yaml\/configmap\/ui.propertes  \nconfigmap\/game-config-test2 created\n\n# [root@k8s-master configmap]# kubectl get cm -n default\nNAME                DATA   AGE\ngame-config-test2   2      8s\n\n# [root@k8s-master configmap]# kubectl get cm  game-config-test2 -n default -o yaml\n\n# [root@k8s-master configmap]# kubectl describe cm game-config-test2 -n default<\/pre>\n\n\n\n<p>\u6e05\u7406\u73af\u5883 kubectl delete cm\/game-config-test2 -n default<\/p>\n\n\n\n<p><strong>3.4 \u6587\u5b57\u521b\u5efa<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u4f7f\u7528--from-literal \u65b9\u5f0f\u76f4\u63a5\u521b\u5efaconfigmap\n# Create the ConfigMap\n# [root@k8s-master configmap]# kubectl create configmap test-config-1 --from-literal=key1=value1 --from-literal=key2=value2\nconfigmap\/test-config-1 created\n\n# \u83b7\u53d6cm\n# [root@k8s-master configmap]# kubectl get cm -n default\nNAME               DATA   AGE\ntest-config-1      2      17s\n\n# \u4ee5yaml\u683c\u5f0f\u67e5\u770bcm\n# Get the ConfigMap Details for my-config\n# [root@k8s-master configmap]# kubectl describe cm\/test-config-1 -n default\nName:         test-config-1\nNamespace:    default\nLabels:       &lt;none>\nAnnotations:  &lt;none>\n\nData\n====\nkey1:\n----\nvalue1\nkey2:\n----\nvalue2\nEvents:  &lt;none>\n[root@k8s-master configmap]# kubectl get cm test-config-1 -n default -o yaml\napiVersion: v1\ndata:\n  key1: value1\n  key2: value2\nkind: ConfigMap\nmetadata:\n  creationTimestamp: \"2021-06-04T07:07:50Z\"\n  name: test-config-1\n  namespace: default\n  resourceVersion: \"627044\"\n  uid: 8f904ca7-94f7-4262-98d9-69385130df28\n\n\n# \u63cf\u8ff0cm\n# [root@k8s-master configmap]# kubectl describe cm\/test-config-1 -n default\nName:         test-config-1\nNamespace:    default\nLabels:       &lt;none>\nAnnotations:  &lt;none>\n\nData\n====\nkey1:\n----\nvalue1\nkey2:\n----\nvalue2\nEvents:  &lt;none><\/pre>\n\n\n\n<p>\u4f7f\u7528\u6587\u5b57\u65b9\u5f0f\u521b\u5efa\uff0c\u5229\u7528 <code>--from-literal<\/code> \u53c2\u6570\u4f20\u9012\u914d\u7f6e\u4fe1\u606f\uff0c\u8be5\u53c2\u6570\u53ef\u4ee5\u4f7f\u7528\u591a\u6b21\u3002<\/p>\n\n\n\n<p><strong>3.5 \u76f4\u63a5\u65b9\u6cd5\uff08yaml\u6587\u4ef6\u65b9\u5f0f\u521b\u5efa\uff09<\/strong><\/p>\n\n\n\n<p>ConfigMap \u662f\u4e00\u4e2a API \u5bf9\u8c61\uff0c \u8ba9\u4f60\u53ef\u4ee5\u5b58\u50a8\u5176\u4ed6\u5bf9\u8c61\u6240\u9700\u8981\u4f7f\u7528\u7684\u914d\u7f6e\u3002 \u548c\u5176\u4ed6 Kubernetes \u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a spec \u4e0d\u540c\u7684\u662f\uff0cConfigMap \u4f7f\u7528 data \u548c binaryData \u5b57\u6bb5\u3002\u8fd9\u4e9b\u5b57\u6bb5\u80fd\u591f\u63a5\u6536<strong>\u952e-\u503c\u5bf9<\/strong>\u4f5c\u4e3a\u5176\u53d6\u503c\u3002data \u548c binaryData \u5b57\u6bb5\u90fd\u662f\u53ef\u9009\u7684\u3002data \u5b57\u6bb5\u8bbe\u8ba1\u7528\u6765\u4fdd\u5b58 <strong>UTF-8<\/strong> \u5b57\u8282\u5e8f\u5217\uff0c\u800c binaryData \u5219 \u88ab\u8bbe\u8ba1\u7528\u6765\u4fdd\u5b58\u4e8c\u8fdb\u5236\u6570\u636e\u3002<br>ConfigMap \u7684\u540d\u5b57\u5fc5\u987b\u662f\u4e00\u4e2a\u5408\u6cd5\u7684 DNS \u5b50\u57df\u540d\u3002<br>data \u6216 binaryData \u5b57\u6bb5\u4e0b\u9762\u7684\u6bcf\u4e2a\u952e\u7684\u540d\u79f0\u90fd\u5fc5\u987b\u7531\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u6216\u8005 -\u3001_ \u6216 . \u7ec4\u6210\u3002\u5728 data \u4e0b\u4fdd\u5b58\u7684\u952e\u540d\u4e0d\u53ef\u4ee5\u4e0e\u5728 binaryData \u4e0b \u51fa\u73b0\u7684\u952e\u540d\u6709\u91cd\u53e0\u3002<br>\u4ece v1.19 \u5f00\u59cb\uff0c\u4f60\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e2a immutable[\u957f\u671f\u4e0d\u53d8\u7684 \/ \u4e0d\u53ef\u6539\u53d8\u7684] \u5b57\u6bb5\u5230 ConfigMap \u5b9a\u4e49\u4e2d\uff0c\u521b\u5efa \u4e0d\u53ef\u53d8\u66f4\u7684 ConfigMap\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11.png\" alt=\"\" class=\"wp-image-9162\" width=\"423\" height=\"335\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11.png 1000w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11-300x238.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11-768x610.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11-830x659.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11-230x183.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11-350x278.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/01\/\u56fe\u7247-11-480x381.png 480w\" sizes=\"(max-width: 423px) 100vw, 423px\" \/><\/figure><\/div>\n\n\n\n<p>\u793a\u4f8b:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u76f4\u63a5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u7684\u65b9\u5f0f\u521b\u5efa\n# vim configmap-test1.yaml\napiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: game-config\n  namespace: default\ndata:\n  game.properties: |\n    enemies=aliens\n    lives=3\n    enemies.cheat=true\n    enemies.cheat.level=noGoodRotten\n    secret.code.passphrase=UUDDLRLRBABAS\n    secret.code.allowed=true\n    secret.code.lives=30\n  ui.properties: |\n    color.good=purple\n    color.bad=yellow\n    allow.textmode=true\n    how.nice.to.look=fairlyNice\n# [root@k8s-master configmap]# kubectl apply -f configmap-test1.yaml \nconfigmap\/configmap-test-one created\n\n# [root@k8s-master configmap]# kubectl  get cm\/configmap-test-one -n default\nNAME                 DATA   AGE\nconfigmap-test-one   2      23s\n\n# [root@k8s-master configmap]# kubectl  get cm\/configmap-test-one -n default -o yaml\napiVersion: v1\ndata:\n  game.properties: |\n    firstkey=firstvaule\n    secondkey=secondvalue\n    thirdkey=thirdvalue\n    forthkey=forthvalue\n  ui.properties: |\n    key11=value11\n    key21=value21\n    key31=value31\n    key41=value41\nkind: ConfigMap\nmetadata:\n  annotations:\n    kubectl.kubernetes.io\/last-applied-configuration: |\n      {\"apiVersion\":\"v1\",\"data\":{\"game.properties\":\"firstkey=firstvaule\\nsecondkey=secondvalue\\nthirdkey=thirdvalue\\nforthkey=forthvalue\\n\",\"ui.properties\":\"key11=value11\\nkey21=value21\\nkey31=value31\\nkey41=value41\\n\"},\"kind\":\"ConfigMap\",\"metadata\":{\"annotations\":{},\"name\":\"configmap-test-one\",\"namespace\":\"default\"}}\n  creationTimestamp: \"2021-06-04T07:22:57Z\"\n  name: configmap-test-one\n  namespace: default\n  resourceVersion: \"628411\"\n  uid: 5f6bc92c-ac17-401d-8948-44c1fdcab7ea\n\n# [root@k8s-master configmap]# kubectl describe cm\/configmap-test-one -n default\nName:         configmap-test-one\nNamespace:    default\nLabels:       &lt;none>\nAnnotations:  &lt;none>\n\nData\n====\nui.properties:\n----\nkey11=value11\nkey21=value21\nkey31=value31\nkey41=value41\n\ngame.properties:\n----\nfirstkey=firstvaule\nsecondkey=secondvalue\nthirdkey=thirdvalue\nforthkey=forthvalue\n\nEvents:  &lt;none><\/pre>\n\n\n\n<p><strong>4. pod\u4e2d\u5e94\u7528<\/strong><\/p>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528\u56db\u79cd\u65b9\u5f0f\u6765\u4f7f\u7528 ConfigMap \u914d\u7f6ePod \u4e2d\u7684\u5bb9\u5668\uff1a<\/p>\n\n\n\n<ul><li>\u5bb9\u5668 entrypoint \u7684\u547d\u4ee4\u884c\u53c2\u6570<\/li><li>\u5bb9\u5668\u7684\u73af\u5883\u53d8\u91cf<\/li><li>\u5728\u53ea\u8bfb\u5377\u91cc\u9762\u6dfb\u52a0\u4e00\u4e2a\u6587\u4ef6\uff0c\u8ba9\u5e94\u7528\u6765\u8bfb\u53d6<\/li><li>\u7f16\u5199\u4ee3\u7801\u5728 Pod \u4e2d\u8fd0\u884c\uff0c\u4f7f\u7528 Kubernetes API \u6765\u8bfb\u53d6 ConfigMap<\/li><\/ul>\n\n\n\n<p>\u8fd9\u4e9b\u4e0d\u540c\u7684\u65b9\u6cd5\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u6570\u636e\u4f7f\u7528\u65b9\u5f0f\u3002 \u5bf9\u524d\u4e09\u4e2a\u65b9\u6cd5\uff0ckubelet \u4f7f\u7528 ConfigMap \u4e2d\u7684\u6570\u636e\u5728 Pod \u4e2d\u542f\u52a8\u5bb9\u5668\u3002<\/p>\n\n\n\n<p>\u7b2c\u56db\u79cd\u65b9\u6cd5\u610f\u5473\u7740\u4f60\u5fc5\u987b\u7f16\u5199\u4ee3\u7801\u624d\u80fd\u8bfb\u53d6 ConfigMap \u548c\u5b83\u7684\u6570\u636e\u3002\u7136\u800c\uff0c \u7531\u4e8e\u4f60\u662f\u76f4\u63a5\u4f7f\u7528 Kubernetes API\uff0c\u56e0\u6b64\u53ea\u8981 ConfigMap \u53d1\u751f\u66f4\u6539\uff0c\u4f60\u7684\u5e94\u7528\u5c31\u80fd\u591f\u901a\u8fc7\u8ba2\u9605\u6765\u83b7\u53d6\u66f4\u65b0\uff0c\u5e76\u4e14\u5728\u8fd9\u6837\u7684\u60c5\u51b5\u53d1\u751f\u7684\u65f6\u5019\u505a\u51fa\u53cd\u5e94\u3002 \u901a\u8fc7\u76f4\u63a5\u8fdb\u5165 Kubernetes API\uff0c\u8fd9\u4e2a\u6280\u672f\u4e5f\u53ef\u4ee5\u8ba9\u4f60\u80fd\u591f\u83b7\u53d6\u5230\u4e0d\u540c\u7684\u540d\u5b57\u7a7a\u95f4\u91cc\u7684 ConfigMap\u3002<\/p>\n\n\n\n<p>\u5148\u521b\u5efa\u4e24\u4e2aconfigMap<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u521b\u5efa\u7b2c\u4e00\u4e2aconfigMap,   special.how: very   \u952e\u540d\uff1a\u952e\u503c\n# vim configmap-for-pod.yaml\n---\napiVersion: v1\nkind: ConfigMap\nmetadata: \n  name: special-config\n  namespace: default\ndata:\n  special.how: very\n  special.type: charm\n\n# \u521b\u5efa\u7b2c\u4e8c\u4e2aconfigMap\n---\napiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: env-config\n  namespace: default\ndata:\n  log_level: INFO<\/pre>\n\n\n\n<p>\u6e05\u7a7a\u73af\u5883\uff0c\u5220\u9664\u4e4b\u524d\u64cd\u4f5c\u521b\u5efa\u7684configmap\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u521b\u5efaconfigMap\uff1a\n# [root@k8s-master configmap]# kubectl apply -f config-for-pod.yaml\nconfigmap\/special-config created\nconfigmap\/env-config created\n\n# [root@k8s-master configmap]# kubectl get cm -n default\nNAME               DATA   AGE\nenv-config         1      12m\nspecial-config     2      12m<\/pre>\n\n\n\n<p><strong>4.1 \u7b2c\u4e00\u79cd\u65b9\u5f0f\uff1a \u5728pod\u4e2d\u4f7f\u7528ConfigMap\u6765\u66ff\u4ee3\u73af\u5883\u53d8\u91cf<\/strong><\/p>\n\n\n\n<ul><li>valueFrom -&gt; configMapKeyRef \u901a\u8fc7valueFrom \u5bfc\u5165<\/li><li>envFrom -&gt; configMapRef \u901a\u8fc7envFrom \u5bfc\u5165<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># vim configmap-instead-podenv.yaml\n# \u7b2c\u4e00\u79cd\u65b9\u5f0f\uff1a \u5728pod\u4e2d\u4f7f\u7528configmap\u914d\u7f6e,\u4f7f\u7528ConfigMap\u6765\u66ff\u4ee3\u73af\u5883\u53d8\u91cf\napiVersion: v1\nkind: Pod\nmetadata:\n  name: configmap-instead-podenv\nspec:\n  containers:\n    - name: cm-instead-podenv\n      image: centos:7.9.2009\n      imagePullPolicy: IfNotPresent\n      command: \n      - \"\/bin\/sh\"\n      -  \"-c\"\n      - \"env\"   # \u5bb9\u5668\u4e00\u4f46\u8fd0\u884c\u4f1a\u6267\u884c\u547d\u4ee4\/bin\/sh -c env\uff0c\u4f1a\u5728\u63a7\u5236\u53f0\u6253\u5370\u4e00\u4e0b\n\n      env: # \u7b2c\u4e00\u79cd\u5bfc\u5165\u65b9\u5f0f\uff1a\u5728env\u4e2d\u5bfc\u5165\n        - name: SPECIAL_LEVEL_KEY   # name\u662f\u5f53\u524d\u5bb9\u5668\u73af\u5883\u53d8\u91cf\u7684key\n          valueFrom:                # \u901a\u8fc7valueFrom\u5bfc\u5165\n            configMapKeyRef: \n              name: special-config  # name\u662f\u8981\u5f15\u5165\u54ea\u4e2aconfigMap\u7684name\n              key: special.how      # key\u662f\u8981\u5f15\u5165\u8be5configMap\u4e2d\u7684\u54ea\u4e2akey\n        - name: SPECIAL_TYPE_KEY\n          valueFrom: \n            configMapKeyRef: \n              name: special-config \n              key: special.type \n      envFrom:                      # \u7b2c\u4e8c\u79cd\u5bfc\u5165\u65b9\u5f0f\uff0c\u76f4\u63a5\u4f7f\u7528envFrom\u5bfc\u5165\n        - configMapRef: \n            name: env-config \n  restartPolicy: Never\n# \u67e5\u770b\u65e5\u5fd7\u53ef\u4ee5\u53d1\u73b0,\u73af\u5883\u53d8\u91cf\u6ce8\u5165\u5230\u4e86\u5bb9\u5668\u4e2d\u4e86\uff0c\u6253\u5370env\u5c31\u7ed3\u675f\u4e86\n# [root@k8s-master configmap]# kubectl apply -f configmap-instead-podenv.yaml\npod\/configmap-instead-podenv created\n# [root@k8s-master configmap]# kubectl get po \nNAME                       READY   STATUS      RESTARTS   AGE\nconfigmap-instead-podenv   0\/1     Completed   0          15s\n# [root@k8s-master configmap]# kubectl logs pod\/configmap-instead-podenv -n default\nMYNGINX_PORT_80_TCP=tcp:\/\/10.96.28.181:80\nHOSTNAME=configmap-instead-podenv\nMYNGINX_PORT=tcp:\/\/10.96.28.181:80\nKUBERNETES_PORT=tcp:\/\/10.96.0.1:443\nKUBERNETES_PORT_443_TCP_PORT=443\nMYSERVICE_SERVICE_PORT=80\nMYNGINX_PORT_80_TCP_PROTO=tcp\nKUBERNETES_SERVICE_PORT=443\nKUBERNETES_SERVICE_HOST=10.96.0.1\nMYNGINX_PORT_80_TCP_PORT=80\nMYSERVICE_PORT_80_TCP_ADDR=10.96.17.78\nSPECIAL_TYPE_KEY=charm   # \u8fd9\u91cc\u7684env\u662f\u5bfc\u5165\u7684\nMYSERVICE_PORT_80_TCP=tcp:\/\/10.96.17.78:80\nSPECIAL_LEVEL_KEY=very   # \u8fd9\u91cc\u7684env\u662f\u5bfc\u5165\u7684\nPATH=\/usr\/local\/sbin:\/usr\/local\/bin:\/usr\/sbin:\/usr\/bin:\/sbin:\/bin\nPWD=\/\nMYSERVICE_PORT=tcp:\/\/10.96.17.78:80\nSHLVL=1\nHOME=\/root\nlog_level=INFO     # \u8fd9\u91cc\u7684env\u662f\u5bfc\u5165\u7684\nKUBERNETES_PORT_443_TCP_PROTO=tcp\nKUBERNETES_SERVICE_PORT_HTTPS=443\nMYSERVICE_PORT_80_TCP_PORT=80\nMYSERVICE_PORT_80_TCP_PROTO=tcp\nMYNGINX_SERVICE_HOST=10.96.28.181\nKUBERNETES_PORT_443_TCP_ADDR=10.96.0.1\nMYNGINX_PORT_80_TCP_ADDR=10.96.28.181\nMYSERVICE_SERVICE_HOST=10.96.17.78\nKUBERNETES_PORT_443_TCP=tcp:\/\/10.96.0.1:443\nMYNGINX_SERVICE_PORT=80\n_=\/usr\/bin\/env<\/pre>\n\n\n\n<p>\u6e05\u9664\u73af\u5883\uff1akubectl delete -f configmap-instead-podenv.yaml<\/p>\n\n\n\n<p><strong>4.2 \u7b2c\u4e8c\u79cd\u65b9\u5f0f\uff1a\u7528ConfigMap\u8bbe\u7f6e\u547d\u4ee4\u884c\u53c2\u6570<\/strong><\/p>\n\n\n\n<p>\u7528\u4f5c\u547d\u4ee4\u884c\u53c2\u6570\uff0c\u5c06 ConfigMap \u7528\u4f5c\u547d\u4ee4\u884c\u53c2\u6570\u65f6\uff0c\u9700\u8981\u5148\u628a ConfigMap \u7684\u6570\u636e\u4fdd\u5b58\u5728\u73af\u5883\u53d8\u91cf\u4e2d\uff0c\u7136\u540e\u901a\u8fc7 $(VAR_NAME) \u7684\u65b9\u5f0f\u5f15\u7528\u73af\u5883\u53d8\u91cf.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#\u7b2c\u4e8c\u79cd\u65b9\u5f0f\uff1a\u7528ConfigMap\u8bbe\u7f6e\u547d\u4ee4\u884c\u53c2\u6570\n# vim configmap-for-cmdargs.yaml\napiVersion: v1\nkind: Pod\nmetadata:\n  name: configmap-for-cmdargs\nspec:\n  containers:\n    - name: configmap-for-cmdargs\n      image: centos:7.9.2009\n      imagePullPolicy: IfNotPresent\n      command: \n      - \"\/bin\/sh\"\n      - \"-c\"\n      - \"echo $(SPECIAL_LEVEL_KEY) $(SPECIAL_TYPE_KEY)\"    # \u547d\u4ee4\u884c\u4e2d\u901a\u8fc7${}\u83b7\u53d6\u73af\u5883\u53d8\u91cf\u53c2\u6570\n      env:\n        - name: SPECIAL_LEVEL_KEY  # name\u662f\u5f53\u524d\u5bb9\u5668\u73af\u5883\u53d8\u91cf\u7684key\n          valueFrom:  # \u901a\u8fc7valueFrom\u5f15\u5165\n            configMapKeyRef: \n              name: special-config  # name\u662f\u8981\u5f15\u5165\u54ea\u4e2aconfigMap\u7684name\n              key: special.how      # key\u662f\u8981\u5f15\u5165\u8be5configMap\u4e2d\u7684\u54ea\u4e2akey\n        - name: SPECIAL_TYPE_KEY \n          valueFrom: \n            configMapKeyRef: \n              name: special-config \n              key: special.type \n  restartPolicy: Never\n# [root@k8s-master configmap]# kubectl apply -f configmap-for-cmdargs.yaml\npod\/configmap-for-cmdargs created\n# [root@k8s-master configmap]# kubectl get pods -n default\nNAME                    READY   STATUS      RESTARTS   AGE\nconfigmap-for-cmdargs   0\/1     Completed   0          21s\n# [root@k8s-master configmap]# kubectl logs pod\/configmap-for-cmdargs -n default\nvery charm<\/pre>\n\n\n\n<p><strong>4.3 \u7b2c\u4e09\u79cd\u65b9\u5f0f\uff1a\u901a\u8fc7\u6570\u636e\u5377\u6302\u8f7dConfigMap<\/strong><\/p>\n\n\n\n<p>\u5728\u6570\u636e\u5377\u91cc\u9762\u4f7f\u7528\u8fd9\u4e2aConfigMap,\u6709\u4e0d\u540c\u7684\u9009\u9879\u3002\u6700\u57fa\u672c\u7684\u5c31\u662f\u5c06\u6587\u4ef6\u586b\u5165\u6570\u636e\u5377,\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d,<code>\u952e\u5c31\u662f\u6587\u4ef6\u540d,\u952e\u503c\u5c31\u662f\u6587\u4ef6\u5185\u5bb9<\/code>\uff0c\u5373\u5728 Pod \u4e2d\u5c06 ConfigMap \u5f53\u505a\u6587\u4ef6\u4f7f\u7528\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u7b2c\u4e09\u79cd\u65b9\u5f0f\uff1a\u901a\u8fc7\u6570\u636e\u5377\u6302\u8f7dConfigMap\n# vim configmap-pass-volume.yaml\napiVersion: v1\nkind: Pod\nmetadata:\n  name: configmap-pass-volume\nspec:\n  containers:\n    - name: configmap-pass-volume\n      image: centos:7.9.2009\n      imagePullPolicy: IfNotPresent\n      command: \n      - \"\/sbin\/init\"\n      volumeMounts: # \u6302\u8f7d\u6570\u636e\u5377\n        - name: configmap-volume # \u6307\u5b9a\u6570\u636e\u5377\u540d\n          mountPath: \/etc\/config # \u8868\u793a\u628aconifg-volume\u6570\u636e\u5377\u6302\u8f7d\u5230\u5bb9\u5668\u7684\/etc\/config\u76ee\u5f55\u4e0b\n  volumes:    # \u5b9a\u4e49\u6570\u636e\u5377\n    - name: configmap-volume #\u7ed9\u6570\u636e\u5377\u8d77\u540d\n      configMap:          #\u6570\u636e\u5377\u6302\u8f7dconfigmap\n        name: special-config #\u6302\u8f7d\u7684configmap\u540d\u5b57\n  restartPolicy: Never\n# [root@k8s-master configmap]# kubectl apply -f configmap-pass-volume.yaml\npod\/configmap-pass-volume created\n\n# [root@k8s-master configmap]# kubectl get pods -n default\nNAME                    READY   STATUS    RESTARTS   AGE\nconfigmap-pass-volume   1\/1     Running   0          8s<\/pre>\n\n\n\n<p>\u767b\u5f55\u5bb9\u5668\u67e5\u770b\/etc\/config\u76ee\u5f55\u4e0b\u662f\u5426\u6302\u8f7d\u6210\u529f<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u8fdb\u5165\u5bb9\u5668\u4e2d\n# [root@k8s-master configmap]# kubectl exec -it pod\/configmap-pass-volume -n default -- bash\n\n# \u67e5\u770b\u6302\u8f7d\n# [root@configmap-pass-volume \/]# ls \/etc\/config\/\nspecial.how  special.type\n# [root@configmap-pass-volume \/]# cd \/etc\/config\/\n# [root@configmap-pass-volume config]# cat special.how special.type \nverycharm<\/pre>\n\n\n\n<p>\u6e05\u9664\u73af\u5883\uff1a kubectl delete -f configmap-pass-volume.yaml<\/p>\n\n\n\n<p><strong>4.4 \u88ab\u6302\u8f7d\u7684 ConfigMap \u5185\u5bb9\u4f1a\u88ab\u81ea\u52a8\u66f4\u65b0-\u70ed\u66f4\u65b0\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># ConfigMap\u7684\u70ed\u66f4\u65b0\n# vim configmap-hot-update.yaml\n---\n# \u521b\u5efa\u4e00\u4e2aconfigmap\napiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: log-config\n  namespace: default\ndata:\n  log_level: INFO\n---\n#  \u521b\u5efapod\napiVersion: apps\/v1\nkind: Deployment \nmetadata: \n  name: my-nginx \nspec:\n  replicas: 3\n  selector:\n    matchLabels:\n      run: my-nginx\n  template:\n    metadata:\n      labels:\n        run: my-nginx\n    spec:\n      restartPolicy: Always\n      containers:\n        - name: my-nginx\n          image: nginx:1.20.0\n          imagePullPolicy: IfNotPresent\n          ports:\n            - containerPort: 80 \n              name: http-port\n              protocol: TCP\n          volumeMounts: # \u6302\u8f7d\u6570\u636e\u5377\n            - name: configmap-volume-nginx\n              mountPath: \/etc\/config  # \u6302\u8f7d\u5230\u5bb9\u5668\u7684\/etc\/config\u76ee\u5f55\u4e0b\n      volumes:\n        - name: configmap-volume-nginx\n          configMap: # \u6570\u636e\u5377\u6302\u8f7d\u4e86\u4e0a\u9762\u7684ConfigMap\n            name: log-config\n# [root@k8s-master configmap]# kubectl apply -f configmap-hot-update.yaml\nconfigmap\/log-config created\ndeployment.apps\/my-nginx created\n\n# [root@k8s-master configmap]# kubectl get pods -n default\nNAME                       READY   STATUS    RESTARTS   AGE\nmy-nginx-6fd588dfc-f5dzc   1\/1     Running   0          45s\n\n# \u8fdb\u5165\u5bb9\u5668\u67e5\u770b\u6302\u8f7d\u60c5\u51b5\n# [root@k8s-master configmap]# kubectl exec -it pod\/my-nginx-6fd588dfc-f5dzc -n default -- bash\n# root@my-nginx-6fd588dfc-f5dzc:\/# ls \/etc\/config\/\nlog_level  # key\u662f\u6587\u4ef6\u540d\n# root@my-nginx-6fd588dfc-f5dzc:\/# cat \/etc\/config\/log_level \nINFO   # value\u662f\u6587\u4ef6\u5185\u5bb9<\/pre>\n\n\n\n<p>\u4fee\u6539ConfigMap<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># kubectl edit configmap log-config -n default\n# \u4fee\u6539log-level\u7684\u503c\u4e3aDEBUG\u7b49\u5f85\u5927\u698210\u79d2\u949f\u65f6\u95f4,\u518d\u6b21\u67e5\u770b\u73af\u5883\u53d8\u91cf\u7684\u503c\n\n# [root@k8s-master configmap]# kubectl edit configmap log-config -n default\nconfigmap\/log-config edited\n\n# \u518d\u6b21\u67e5\u770b\u73af\u5883\u53d8\u91cf\u7684\u503c\u53d1\u751f\u4e86\u53d8\u5316\n# [root@k8s-master configmap]# kubectl exec pod\/my-nginx-6fd588dfc-f5dzc -n default -- cat \/etc\/config\/log_level\nDEBUG<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u5ff5 ConfigMap\u7684\u529f\u80fd\u5728k8s1.2\u7248\u672c\u4e2d\u5f15\u5165\u7684\uff0c\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u4f1a\u4ece\u914d\u7f6e\u6587\u4ef6\uff0c\u547d\u4ee4\u884c\u53c2\u6570\u6216\u73af\u5883\u53d8\u91cf\u4e2d\u8bfb\u53d6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/9159"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9159"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/9159\/revisions"}],"predecessor-version":[{"id":9163,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/9159\/revisions\/9163"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}