{"id":12500,"date":"2023-10-11T10:13:35","date_gmt":"2023-10-11T01:13:35","guid":{"rendered":"https:\/\/jennifersoft.com\/ko\/?p=12500"},"modified":"2024-03-28T15:12:52","modified_gmt":"2024-03-28T06:12:52","slug":"2023-10-11-jennifer-kubernetes-7","status":"publish","type":"post","link":"https:\/\/jennifersoft.com\/ko\/blog\/kubernetes\/2023-10-11-jennifer-kubernetes-7\/","title":{"rendered":"07. \ud30c\ub4dc \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1 &#8211; Metrics-Server &#038; HPA"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2023\/10\/\u1100\u1175\u1109\u116e\u11af\u1107\u1173\u11af\u1105\u1169\u1100\u1173\u110b\u1167\u11ab\u110c\u1162_07_\u110f\u1165\u1107\u1165_231006-1-1024x576.jpg\" alt=\"\" class=\"wp-image-12505\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2023\/10\/\u1100\u1175\u1109\u116e\u11af\u1107\u1173\u11af\u1105\u1169\u1100\u1173\u110b\u1167\u11ab\u110c\u1162_07_\u110f\u1165\u1107\u1165_231006-1-1024x576.jpg 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2023\/10\/\u1100\u1175\u1109\u116e\u11af\u1107\u1173\u11af\u1105\u1169\u1100\u1173\u110b\u1167\u11ab\u110c\u1162_07_\u110f\u1165\u1107\u1165_231006-1-300x169.jpg 300w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2023\/10\/\u1100\u1175\u1109\u116e\u11af\u1107\u1173\u11af\u1105\u1169\u1100\u1173\u110b\u1167\u11ab\u110c\u1162_07_\u110f\u1165\u1107\u1165_231006-1.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubc88 \uc7a5\uc740 \ud30c\ub4dc \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc744 \uc54c\uc544\ubd05\ub2c8\ub2e4. \uc2e4\uc2b5\uc744 \ud1b5\ud558\uc5ec \uc138\ubd80 \uc124\uc815\uc744 \ud655\uc778\ud574 \ubcf4\uace0 \uc2e4\uc81c \uc6b4\uc601 \ud658\uacbd \uc801\uc6a9 \uc2dc \uc5b4\ub5a0\ud55c \ubd80\ubd84\uc744 \uace0\ub824\ud574\uc57c \ud558\ub294\uc9c0 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1(Autoscaling)\uc774\ub780 \uc2dc\uc2a4\ud15c\uc758 \ubd80\ud558 \ub610\ub294 \uc218\uc694\uc5d0 \ub530\ub77c \uc790\ub3d9\uc73c\ub85c \ub9ac\uc18c\uc2a4\ub97c \ud655\uc7a5\ud558\uac70\ub098 \ucd95\uc18c\ud558\uc5ec \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc131\ub2a5\uacfc \uc11c\ube44\uc2a4 \uac00\uc6a9\uc131\uc744 \uc720\uc9c0\ud558\ub294 \uae30\ub2a5\uc785\ub2c8\ub2e4. \uc774\ub294 \ud074\ub77c\uc6b0\ub4dc \ud658\uacbd\uc5d0\uc11c \uc8fc\ub85c \uc0ac\uc6a9\ub418\uba70, \uc790\ub3d9\ud654\ub41c \ubc29\uc2dd\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ubc0f \uc778\ud504\ub77c\uc2a4\ud2b8\ub7ed\ucc98\uc758 \ud655\uc7a5\uc744 \uad00\ub9ac\ud569\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucfe0\ubc84\ub124\ud2f0\uc2a4\ub294 \ud06c\uac8c \ud30c\ub4dc\uc640 \ub178\ub4dc\uc758 \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. \ud30c\ub4dc\ub294 \uc8fc\ub85c HPA(Horizontal Pod Autoscaler)\ub97c \uc774\uc6a9\ud558\uc5ec \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\uc758 \uc218\ub97c \uc218\ud3c9(Horizontal)\uc73c\ub85c \uc99d\uac00\ud558\uace0 \uac10\uc18c\ud569\ub2c8\ub2e4. \ub178\ub4dc\ub294 Cluster Autoscaler\uc640 Karpneter\ub97c \uc774\uc6a9\ud558\uc5ec \ud30c\ub4dc\uac00 \uc2e4\ud589\ub418\ub294 \ub178\ub4dc\uc758 \uc218\ub7c9\uc744 \ubcc0\uacbd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc8fc\uc694 \ub0b4\uc6a9<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>AutoScaling\uc758 \uc774\ud574<\/li><li>Metrics-Server\ub97c \uc774\uc6a9\ud55c \ub178\ub4dc, \ud30c\ub4dc\uc758 \uc790\uc6d0 \uc0ac\uc6a9\ub7c9 \ubaa8\ub2c8\ud130\ub9c1&nbsp;<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0ac\uc6a9\uc790 \ubd80\ud558 \uc99d\uac00, \uac10\uc18c\uc5d0 \ub530\ub978 \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\uc758 \uc99d\uac00, \uac10\uc18c\ub97c \uc218\ud589\ud558\ub294 \uc624\ucf00\uc2a4\ucf00\uc77c\ub9c1(HPA) \uc774\ud574<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc2b5 \uacfc\uc81c<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Metrics-Server \uc124\uce58<\/li><li>\ud30c\ub4dc \uc624\ucf00\uc2a4\ucf00\uc77c\ub9c1(HPA) \uc2e4\uc2b5<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubc88 \uc7a5\uc5d0 \uc0ac\uc6a9\ud558\ub294 \uc18c\uc2a4 \ud30c\uc77c\uc758 \uae43\ud5d9 \ub514\ub809\ud1a0\ub9ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>&nbsp;<a href=\"https:\/\/github.com\/junghoon2\/k8s-class\/tree\/main\/hpa\">https:\/\/github.com\/junghoon2\/k8s-class\/tree\/main\/hpa<\/a>&nbsp;<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. Autoscaling\uc758 \uc8fc\uc694 \uc694\uc18c<\/strong><br><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7fc \uac04\ub2e8\ud788 \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc744 \uc124\uc815\ud558\uae30 \uc704\ud55c \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub97c \uc54c\uc544\ubd05\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. \ubaa8\ub2c8\ud130\ub9c1: \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc740 \uc2dc\uc2a4\ud15c\uc758 \ubd80\ud558\ub97c \uae30\uc900\uc73c\ub85c \uc218\ub7c9\uc744 \uc99d\uac00\ud558\uace0 \uac10\uc18c\ud569\ub2c8\ub2e4. \uc2dc\uc2a4\ud15c\uc758 \ubd80\ud558\ub97c \uce21\uc815\ud558\uae30 \uc704\ud55c \ubaa8\ub2c8\ud130\ub9c1 \uc194\ub8e8\uc158\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc8fc\ub85c CPU \uc0ac\uc6a9\ub7c9, \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9, \ub124\ud2b8\uc6cc\ud06c \ud2b8\ub798\ud53d \ub4f1\uacfc \uac19\uc740 \uba54\ud2b8\ub9ad\uc744 \uc218\uc9d1\ud558\uc5ec \uc2dc\uc2a4\ud15c\uc758 \ud604\uc7ac \uc0c1\ud0dc\ub97c \ud30c\uc545\ud569\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. \uc870\uc815 \uae30\uc900 \uc124\uc815: \uc0ac\uc6a9\uc790\ub294 \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc744 \uc704\ud55c \uc870\uc815 \uae30\uc900\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, CPU \uc0ac\uc6a9\ub7c9\uc774 \uc124\uc815\ud55c \uc784\uacc4\uac12\uc744 \ucd08\uacfc\ud558\uba74 \ub9ac\uc18c\uc2a4\ub97c \ud655\uc7a5\ud558\uace0, \uc124\uc815\ud55c \uc784\uacc4\uac12 \uc544\ub798\ub85c \ub0b4\ub824\uac00\uba74 \ub9ac\uc18c\uc2a4\ub97c \ucd95\uc18c\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c \ud2b9\uc815\ud55c \uc870\uc815 \uae30\uc900\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc784\uacc4\uac12\uc5d0 \ub530\ub978 \ubc18\uc751 \uc2dc\uac04 \uc5ed\uc2dc \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 CPU \uc0ac\uc6a9\ub7c9\uc774 \uac10\uc18c\ud558\uc600\ub2e4\uac00 \ub2e4\uc2dc \uc99d\uac00\ud558\ub294 \ubcc0\ud654\uac00 \uc790\uc8fc \ubc1c\uc0dd\ud558\ub294 \uacbd\uc6b0 \uc7a6\uc740 \ubcc0\ub3d9\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud558\uc5ec Scaling Down \uc548\uc815\ud654 \uc2dc\uac04\uc744 5\ubd84 \ub4f1\uc73c\ub85c \uc9c0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. \uc2a4\ucf00\uc77c\ub9c1 \uc815\ucc45: \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc740 \ub2e4\uc591\ud55c \uc2a4\ucf00\uc77c\ub9c1 \uc815\ucc45\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc8fc\ub85c \uc218\uc9c1 \uc2a4\ucf00\uc77c\ub9c1(Vertical Scaling)\uacfc \uc218\ud3c9 \uc2a4\ucf00\uc77c\ub9c1(Horizontal Scaling)\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc218\uc9c1 \uc2a4\ucf00\uc77c\ub9c1\uc740 \uc778\uc2a4\ud134\uc2a4\uc758 \ub9ac\uc18c\uc2a4 \ud06c\uae30\ub97c \ubcc0\uacbd\ud558\uc5ec \ub9ac\uc18c\uc2a4\ub97c \uc870\uc808(cpu request 0.5 core to 1 Core \ub4f1)\ud558\ub294 \uac83\uc774\uba70, \uc218\ud3c9 \uc2a4\ucf00\uc77c\ub9c1\uc740 \uc778\uc2a4\ud134\uc2a4\uc758 \uc218\ub7c9\uc744 \uc870\uc808\ud558\uc5ec \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \ubd80\ud558\uc5d0 \ub9de\ucdb0 \ud655\uc7a5\ud558\uac70\ub098 \ucd95\uc18c\ud569\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc740 \uc704\uc640 \uac19\uc740 \uc694\uc18c\ub97c \uc774\uc6a9\ud558\uc5ec \uc2dc\uc2a4\ud15c\uc758 \ubd80\ud558 \ubcc0\ub3d9\uc5d0 \uc790\ub3d9\uc73c\ub85c \ub300\uc751\ud558\uc5ec \ub9ac\uc18c\uc2a4\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \uc0ac\uc6a9\ud558\uace0 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc131\ub2a5\uacfc \uac00\uc6a9\uc131\uc744 \uc720\uc9c0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790\ub294 \uc218\ub3d9\uc73c\ub85c \ub9ac\uc18c\uc2a4\ub97c \uad00\ub9ac\ud558\uac70\ub098 \uc608\uce21\ub41c \ubd80\ud558\uc5d0 \ub300\ud55c \ub300\ube44\ub97c \ud560 \ud544\uc694 \uc5c6\uc774, \uc790\ub3d9\uc73c\ub85c \uc2dc\uc2a4\ud15c\uc744 \uc870\uc815\ud558\uc5ec \ud6a8\uc728\uc801\uc778 \uc6b4\uc601\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud074\ub77c\uc6b0\ub4dc \ud658\uacbd\uc5d0\uc11c\ub294 \uc790\ub3d9\ud654\ub41c \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc774 \ud2b9\ud788 \uc720\uc6a9\ud558\uba70, \ud074\ub77c\uc6b0\ub4dc \uc81c\uacf5\uc5c5\uccb4\uac00 \uc81c\uacf5\ud558\ub294 \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\uba74 \uc628\ud504\ub808\ubbf8\uc2a4 \ud658\uacbd\uc5d0\uc11c\ub294 \ub298\uc5b4\ub098\ub294 \ud30c\ub4dc\ub97c \uc218\uc6a9\ud560 \uc218 \uc788\ub294 \ub178\ub4dc\uc758 \uc218\ub7c9\uc774 \ud55c\uc815\uc801\uc774\ub77c \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1 \uc0ac\uc6a9\uc5d0 \uc81c\uc57d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<br><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. Metrics-Server\ub97c \uc774\uc6a9\ud55c \uc790\uc6d0 \uc0ac\uc6a9\ub7c9 \ud655\uc778<\/strong><br><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc744 \uc801\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 \uc2dc\uc2a4\ud15c\uc758 \uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc744 \ud30c\uc545\ud574\uc57c \ud569\ub2c8\ub2e4. \ucfe0\ubc84\ub124\ud2f0\uc2a4 \ud658\uacbd\uc5d0\uc11c \ud30c\ub4dc\uc640 \ub178\ub4dc\uc758 CPU, Memory \ub9ac\uc18c\uc2a4 \uc0ac\uc6a9\ub7c9\uc744 \ud655\uc778\ud558\uae30 \uc704\ud574\uc11c\ub294 Metrics-Server\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc124\uce58\ub294 ArgoCD\uc640 \ud5ec\ub984\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ud5ec\ub984\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc124\uce58\ud558\ub294 \uc790\uc138\ud55c \ubc29\ubc95\uc740 8\uc7a5\uc5d0\uc11c \ub2e4\ub8e8\uba70 \uc774\ubc88 \uc7a5\uc5d0\uc11c\ub294 \uac04\ub2e8\ud788 \uc2e4\ud589 \uba85\ub839\uc5b4\ub9cc \uc815\ub9ac\ud569\ub2c8\ub2e4.<\/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=\"\">$ (\u2388 |switch-singapore-test:monitoring) helm repo add metrics-server \n$ (\u2388 |switch-singapore-test:monitoring) helm pull metrics-server\/metrics-server --version 3.10.0\n$ (\u2388 |switch-singapore-test:monitoring) tar xvfz metrics-server-3.10.0.tgz \n$ (\u2388 |switch-singapore-test:monitoring) rm -rf metrics-server-3.10.0.tgz \n$ (\u2388 |switch-singapore-test:monitoring) mv metrics-server metrics-server-3.10.0\n$ (\u2388 |switch-singapore-test:monitoring) cd metrics-server-3.10.0\n$ (\u2388 |switch-singapore-test:monitoring) mkdir ci\n$ (\u2388 |switch-singapore-test:monitoring) cp values.yaml ci\/<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud5ec\ub984 Value \ud30c\uc77c\uc744 \uc544\ub798\uc640 \uac19\uc774 \uc218\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/github.com\/junghoon2\/k8s-class\/blob\/main\/metrics-server-3.10.0\/ci\/values.yaml\">ci\/values.yaml<\/a><\/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=\"\">apiService:\n  insecureSkipTLSVerify: true<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">ArgoCD\ub97c \uc774\uc6a9\ud558\uc5ec \ubc30\ud3ec\ud558\uae30 \uc704\ud558\uc5ec ArgoCD application \ud30c\uc77c\uc744 \uc900\ube44\ud569\ub2c8\ub2e4. \uc544\ub798\uc640 \uac19\uc774 argo-cd-app-of-apps \ub514\ub809\ud1a0\ub9ac\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4.<\/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=\"\">$ (\u2388 |switch-seoul-stage:kubecost) cd ..\/argo-cd-app-of-apps <\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">metrics-server \uc6a9\ub3c4\uc758 ArgoCD Application CRD \ud30c\uc77c\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/github.com\/junghoon2\/k8s-class\/blob\/main\/argo-cd-app-of-apps\/templates\/metrics-server-applications.yaml\">templates\/metrics-server-applications.yaml<\/a><\/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: argoproj.io\/v1alpha1\nkind: Application\nmetadata:\n  name: metrics-server\n  namespace: argocd\n  finalizers:\n  - resources-finalizer.argocd.argoproj.io\nspec:\n  destination:\n    namespace: kube-system\n    server: {{ .Values.spec.destination.server }}\n  project: default\n  source:\n    path: metrics-server-3.10.0\n    helm:\n      valueFiles:\n      - ci\/values.yaml\n    repoURL: {{ .Values.spec.source.repoURL }}\n    targetRevision: {{ .Values.spec.source.targetRevision }}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">ArgoCD\uc758 Apps Application\uc740 \uc544\ub798\uc640 \uac19\uc774 \u2018templates\u2019 \ub514\ub809\ud1a0\ub9ac\uc758 applications \ud30c\uc77c\uc744 \uc790\ub3d9\uc73c\ub85c \uc778\uc2dd\ud558\ub3c4\ub85d syncPolicy\/automated \uc635\uc158\uc774 \uc124\uc815\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/github.com\/junghoon2\/k8s-class\/blob\/main\/argo-cd-app-of-apps\/apps-application.yaml\">apps-applications.yaml<\/a><\/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=\"\">syncPolicy:\n    automated:\n      prune: true\n      selfHeal: true<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">ArgoCD GUI\uc5d0\uc11c \ud655\uc778\ud558\uba74 \uc544\ub798\uc640 \uac19\uc774 \u2018metrics-server\u2019 \ub9ac\uc18c\uc2a4\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/MtG9LcR-3CQS5ijWvDfl2gvSv7YWhDeK1r9rEwvBV_w2DZAQg9IlMF0YzLGD-Iuw9OBTLQoH4jeKkmffuiITFFAtD4sn36qxBjLyfM6BfivPa_AYT0eaM2hefUGrS9u6G-najJ27wh-zfchup5eWWbE\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud654\uba74 \uc704 \uba54\ub274\uc758 \u2018SYNC\u2019 \ud074\ub9ad\ud558\uba74 \ub9ac\uc18c\uc2a4\uac00 \ubc30\ud3ec\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/Ccfr0ty7Vg2IzSgpi2acN-7Nn5yA5v-o91bAyjkiOz49rRFQvpX49pWfKDBAgFzf40yXhqmErhQcvzv1rh32g27K5De-Ndvvh58_JBu15ZcuO9RSBBpg7V7a111u4AUI-PmeZNKkUoSd1vTM3YOwQg0\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">kube-system \ub124\uc784\uc2a4\ud398\uc774\uc2a4\uc5d0 \ud655\uc778\ud558\uba74 \uc544\ub798\uc640 \uac19\uc774 metrics-server \ud30c\ub4dc\uac00 \uc2e4\ud589\ub429\ub2c8\ub2e4.<\/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=\"\">$ (\u2388 |switch-singapore-test:kube-system) k get pod metrics-server-6f9cdd486c-2fqm2 \nNAME                              READY   STATUS    RESTARTS   AGE\nmetrics-server-6f9cdd486c-2fqm2   0\/1     Running   0          24s<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Metrics-Server\ub294 \uac01 \ub178\ub4dc\uc5d0 \ubc30\ud3ec\ub41c kubelet\uacfc cAdvisor\ub97c \uc774\uc6a9\ud558\uc5ec \uc804\uccb4 \ub178\ub4dc\uc640 \ud30c\ub4dc\uc758 \uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc744 \uc218\uc9d1\ud558\uc5ec API Server \ud1b5\ud558\uc5ec \uc870\ud68c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uba85\ub839\uc5b4\ub294 \u2018k top\u2019 \uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub178\ub4dc \uc0ac\uc6a9\ub7c9 \uc870\ud68c<\/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=\"\">$ (\u2388 |switch-singapore-test:kube-system) k top nodes\nNAME                                               CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   \nip-10-110-24-222.ap-southeast-1.compute.internal   171m         8%     2256Mi          31%       \nip-10-110-47-109.ap-southeast-1.compute.internal   88m          4%     907Mi           12%  <\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud30c\ub4dc \uc0ac\uc6a9\ub7c9 \uc870\ud68c<\/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=\"\">$ (\u2388 |switch-singapore-test:kube-system) k top pods\nNAME                                            CPU(cores)   MEMORY(bytes)          \naws-load-balancer-controller-7d96db6884-nrcgf   2m           24Mi            \naws-node-84wfr                                  3m           41Mi\n(\uc0dd\ub7b5)<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Metrics-Server \uc124\uce58\uac00 \uc644\ub8cc\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. HPA(Horizontal Pod Autoscaler) \uc2e4\uc2b5<\/strong><br><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">HPA\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \ubd80\ud558\uac00 \uc99d\uac00\ud558\uc5ec \ub9ac\uc18c\uc2a4 \uc0ac\uc6a9\ub7c9\uc774 \ubcc0\uacbd\ub418\uba74 \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\uc758 \uac1c\uc218\ub97c \uc870\uc815\ud569\ub2c8\ub2e4. \uc55e\uc5d0\uc11c \uc124\uce58\ud55c \uba54\ud2b8\ub9ad \uc11c\ubc84\uac00 \uc218\uc9d1\ud55c CPU, Memory \uc0ac\uc6a9\ub7c9\uc744 \ud655\uc778\ud558\uc5ec \uc784\uacc4\uac12\uc744 \ucd08\uacfc\ud558\uac70\ub098 \uac10\uc18c\ud558\uba74 \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\uc758 \uac2f\uc218\ub97c \uc99d\uac00\ud5d9\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc138\ud55c \uc0ac\uc6a9\ubc95\uc744 \uc608\uc81c\ub85c \uc54c\uc544\ubd05\ub2c8\ub2e4. \uadf8\ub7fc, \ud14c\uc2a4\ud2b8\uc5d0 \uc0ac\uc6a9\ud560 \ud30c\ub4dc\ub97c \ubc30\ud3ec\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/github.com\/junghoon2\/k8s-class\/blob\/main\/hpa\/php-apache.yaml\">php-apache.yaml<\/a><\/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: apps\/v1\nkind: Deployment\nmetadata:\n  name: php-apache\nspec:\n  selector:\n    matchLabels:\n      run: php-apache\n  replicas: 1\n  template:\n    metadata:\n      labels:\n        run: php-apache\n    spec:\n      containers:\n      - name: php-apache\n        image: registry.k8s.io\/hpa-example\n        ports:\n        - containerPort: 80\n        resources:\n          limits:\n            cpu: 500m\n          requests:\n            cpu: 200m\n---\napiVersion: v1\nkind: Service\nmetadata:\n  name: php-apache\n  labels:\n    run: php-apache\nspec:\n  ports:\n  - port: 80\n  selector:\n    run: php-apache<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">. spec.template.spec.containers.resources.requests.cpu: 200m<br>\ud30c\ub4dc\uac00 \uc2e4\ud589\ub418\ub294 \ub178\ub4dc\uc5d0 \uc694\uccad(request)\ud560 \uc218 \uc788\ub294 CPU Core\ub97c \uc785\ub825\ud569\ub2c8\ub2e4. \ub2e8\uc704\ub294 1,000m = 1 vCore \ub85c 200m\uc740 0.2 Core\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704 \uc608\uc81c\ub294 \ucfe0\ubc84\ub124\ud2f0\uc2a4 \uacf5\uc2dd \ud648\ud398\uc774\uc9c0\uc5d0\uc11c \uc81c\uacf5\ud558\uba70 \uc678\ubd80 \uc811\uc18d\uc5d0 \ub530\ub77c \ubd80\ud558\uac00 \uc99d\uac00\ud558\ub294 PHP Apache \uc0d8\ud50c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc785\ub2c8\ub2e4. \ub9ac\uc18c\uc2a4\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<br><\/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=\"\">$ (\u2388 |switch-singapore-test:default) k apply -f php-apache.yaml \ndeployment.apps\/php-apache created\nservice\/php-apache created\n\n$ (\u2388 |switch-singapore-test:default) k get deploy,svc\nNAME                         READY   UP-TO-DATE   AVAILABLE   AGE\ndeployment.apps\/php-apache   1\/1     1            1           40s\n\nNAME                 TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE\nservice\/kubernetes   ClusterIP   172.20.0.1      &lt;none>        443\/TCP   59d\nservice\/php-apache   ClusterIP   172.20.92.196   &lt;none>        80\/TCP    39s<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">php-apache \ub514\ud50c\ub85c\uc774\uba3c\ud2b8\uc640 \uc11c\ube44\uc2a4\uac00 \uc815\uc0c1\uc73c\ub85c \uc124\uce58\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uc73c\ub85c HPA \ub9ac\uc18c\uc2a4\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. HPA \uc5ed\uc2dc \ucfe0\ubc84\ub124\ud2f0\uc2a4 \ub9ac\uc18c\uc2a4\ub85c YAML \ud30c\uc77c\ub85c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/github.com\/junghoon2\/k8s-class\/blob\/main\/hpa\/php-hpa.yaml\">php-hpa.yaml<\/a><\/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: autoscaling\/v2\nkind: HorizontalPodAutoscaler\nmetadata:\n  name: php-apache\n  namespace: default\nspec:\n  maxReplicas: 10\n  metrics:\n  - resource:\n      name: cpu\n      target:\n        averageUtilization: 50\n        type: Utilization\n    type: Resource\n  minReplicas: 1\n  scaleTargetRef:\n    apiVersion: apps\/v1\n    kind: Deployment\n    name: php-apache\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">. spec.maxReplicas<br>\ucd5c\uace0\ub85c \uc99d\uac00\ud558\ub294 \ud30c\ub4dc\uc758 \uc218\ub7c9\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. spec.metrics.resource.name: cpu<br>\ud30c\ub4dc\uc758 \uc218\ub7c9\uc774 \uc99d\uac00\ud558\ub294 \uae30\uc900\uc774 \ub418\ub294 \uba54\ud2b8\ub9ad\uc744 \uc785\ub825\ud569\ub2c8\ub2e4. CPU, Memory \ub4f1\uc744 \uc785\ub825\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. spec.metrics.resource.target.averageUtilization: 50<br>averageUtilization(\ud3c9\uade0 \uc0ac\uc6a9\ub7c9) \uae30\uc900, \uc989 \ud37c\uc13c\ud2f0\uc9c0 \uae30\uc900\uc73c\ub85c \uc784\uacc4\uac12\uc744 \uc9c0\uc815\ud558\uc600\uc2b5\ub2c8\ub2e4. \uae30\uc900\uc774 \ub418\ub294 \uc218\uce58\ub294 \ud30c\ub4dc\uc5d0 \uc9c0\uc815\ud55c Resource Request \uc785\ub2c8\ub2e4. \uc800\ud76c \uc608\uc81c\ub294 Request\uc5d0 200m(0.2Core)\ub97c \uc9c0\uc815\ud558\uace0 averageUtilization\uc5d0 50\uc744 \uc9c0\uc815\ud558\uc600\uc73c\ub2c8 100m(50%) \uc774\uc0c1\uc744 \uc0ac\uc6a9\ud558\uba74 \ud30c\ub4dc\uac00 \uc99d\uac00\ud569\ub2c8\ub2e4. \uc720\uc758\ud560 \uc0ac\ud56d\uc740 Resource\uc758 Limit\uc774 \uc544\ub2c8\ub77c Request\ub77c\ub294 \uac83 \uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\uc0c1\uc774 \ub418\ub294 \ubaa8\ub4e0 \ud30c\ub4dc\uc758 \ud3c9\uade0 \uc0ac\uc6a9\ub7c9\uc744 \uae30\uc900\uc73c\ub85c \uc0ac\uc6a9\ub7c9\uc744 \uce21\uc815\ud569\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">spec.metrics.type: Resource<br>\uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc744 \uae30\uc900\uc73c\ub85c \uba54\ud2b8\ub9ad\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4. Resource \uc774 \uc678 Custom \uba54\ud2b8\ub9ad\uc744 \uc0ac\uc6a9\ud558\uba74 \uc138\uc158 \uc22b\uc790, \uc9c0\uc5f0 \uc2dc\uac04 \ub4f1\uc758 \ub2e4\uc591\ud55c \uba54\ud2b8\ub9ad\uc744 \ucd94\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. spec.scaleTargetRef.kind: Deployment<br>HPA\uac00 \uc2e4\ud589\ud558\uc5ec \uc99d\uac00\ud560 \ub300\uc0c1 \uc790\uc6d0\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4. \uc800\ud76c \uc608\uc81c\ub294 php-apache \uc774\ub984\uc758 Deployment \uc790\uc6d0\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. spec.scaleTargetRef.name: php-apache<br>Deployment \uc911 php-apache \uc774\ub984\uc744 \uac00\uc9c0\ub294 \ub9ac\uc18c\uc2a4\ub97c HPA Target\uc73c\ub85c \uc9c0\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">php-apache HPA \ub9ac\uc18c\uc2a4\ub97c \ubc30\ud3ec\ud569\ub2c8\ub2e4.<br><\/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=\"\">$ (\u2388 |switch-singapore-test:default) k apply -f php-hpa.yaml \nhorizontalpodautoscaler.autoscaling\/php-apache created<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">HPA \ub9ac\uc18c\uc2a4\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br><\/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=\"\">$ (\u2388 |switch-singapore-test:default) k get hpa\nNAME         REFERENCE               TARGETS   MINPODS   MAXPODS   REPLICAS   AGE\nphp-apache   Deployment\/php-apache   0%\/50%    1         10        1          64s<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">. TARGETS<br>CPU \uc0ac\uc6a9\ub7c9\uc758 Target\uc774 50%\uc778\ub370 \ud604\uc7ac 0%\uc785\ub2c8\ub2e4. \ud604\uc7ac\ub294 \uc0ac\uc6a9\ub7c9\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. MINPODS, MAXPODS, REPLICAS<br>\uac01 1, 10, 1\ub85c \ud604\uc7ac php-apache \ud30c\ub4dc\uc758 Replica \uc218\ub7c9\uc774 1\uac1c\ub85c CPU \uc0ac\uc6a9\ub7c9\uc774 Target \ubcf4\ub2e4 \uc544\ub798\ub77c MINPODS \uc218\ub7c9\uacfc \ub3d9\uc77c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7fc \ubd80\ud558\ub97c \ubc1c\uc0dd\ud558\uc5ec php-apache \ud30c\ub4dc\uc758 \uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc744 \uc99d\uac00\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc544\ub798 \uc2a4\ud06c\ub9bd\ud2b8\ub294 busybox \uc774\ubbf8\uc9c0\ub97c \uc2e4\ud589\ud558\uc5ec \u20180.01\u2019\ucd08 \uac04\uaca9\uc73c\ub85c \uc55e\uc5d0\uc11c \uc2e4\ud589\ud55c php \ud30c\ub4dc\uc5d0 \uc811\uc18d\ud558\ub294 \uc608\uc81c\uc785\ub2c8\ub2e4.<br><\/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=\"\">$ (\u2388 |switch-singapore-test:default) kubectl run -i --tty load-generator --rm --image=busybox:1.28 --restart=Never -- \/bin\/sh -c \"while sleep 0.01; do wget -q -O- http:\/\/php-apache; done\"\n\nIf you don't see a command prompt, try pressing enter.\nOK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!OK!<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub610 \ud558\ub098\uc758 \ucc3d\uc744 \uc5f4\uc5b4\uc11c HPA \ubcc0\ud654\ub97c \ud655\uc778\ud569\ub2c8\ub2e4. <\/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=\"\">$ (\u2388 |switch-singapore-test:kube-system) k get hpa -w\nNAME         REFERENCE               TARGETS    MINPODS   MAXPODS   REPLICAS   AGE\nphp-apache   Deployment\/php-apache   133%\/50%   1         10        1          4m53s\nphp-apache   Deployment\/php-apache   239%\/50%   1         10        3          5m\nphp-apache   Deployment\/php-apache   128%\/50%   1         10        5          5m15s\nphp-apache   Deployment\/php-apache   53%\/50%    1         10        5          5m30s<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">-w(watch) \uc635\uc158\uc744 \uc0ac\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ubcc0\ud654\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubd80\ud558\ub97c \ubc1c\uc0dd\ud558\uace0 \uc788\uc5b4 \u2018TARGETS\u2019 (133% -&gt; 239%)\uc774 \uc99d\uac00\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uc5d0 \ub530\ub77c \ud30c\ub4dc\uc758 \uc218\ub7c9(REPLICAS)\ub3c4 \uac19\uc774 1 -&gt; 3 -&gt; 5\ub85c \uc99d\uac00\ud569\ub2c8\ub2e4.<\/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=\"\">$ (\u2388 |switch-singapore-test:default) k get pod\nNAME                          READY   STATUS    RESTARTS   AGE\nload-generator                1\/1     Running   0          3m44s\nphp-apache-7495ff8f5b-66zzq   1\/1     Running   0          113s\nphp-apache-7495ff8f5b-d4fdp   1\/1     Running   0          3m23s\nphp-apache-7495ff8f5b-kghnk   1\/1     Running   0          3m8s\nphp-apache-7495ff8f5b-l6n86   1\/1     Running   0          28m\nphp-apache-7495ff8f5b-ldljv   1\/1     Running   0          3m23s\nphp-apache-7495ff8f5b-msx5z   1\/1     Running   0          3m8s<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud30c\ub4dc\uc758 \uc218\ub7c9\uc744 \ud655\uc778\ud558\uba74 \uc704\uc640 \uac19\uc774 \uc790\ub3d9\uc73c\ub85c \uc99d\uac00\ud569\ub2c8\ub2e4. \uc774\ucc98\ub7fc \uc678\ubd80 \uc0ac\uc6a9\uc790 \uc811\uc18d\uc774 \uc99d\uac00\ud558\uc5ec \uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc774 \uc99d\uac00\ud558\uba74 \ucfe0\ubc84\ub124\ud2f0\uc2a4\ub294 HPA \uc124\uc815\uc73c\ub85c \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\ub97c \uc99d\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \ub9ac\uc18c\uc2a4 \uc0ac\uc6a9\ub7c9\uc5d0 \ub530\ub77c \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\uc758 \uc218\ub97c \uc870\uc808\ub418\ubbc0\ub85c \ucd94\uac00 \uad00\ub9ac\uc790\uc758 \uac1c\uc785\uc5c6\uc774 \uc790\ub3d9\uc73c\ub85c \ud2b8\ub798\ud53d\uc744 \ucc98\ub9ac\ud560 \uc218 \uc788\uc5b4 \ub9e4\uc6b0 \uc720\uc6a9\ud569\ub2c8\ub2e4.&nbsp;<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc38\uace0\ub85c \uae30\uc900\uc774 \ub418\ub294 \uba54\ud2b8\ub9ad\uc740 CPU \ub610\ub294 \uba54\ubaa8\ub9ac \ud639\uc740 CPU, \uba54\ubaa8\ub9ac 2\uac1c \uba54\ud2b8\ub9ad \ubaa8\ub450 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4. HPA \uc801\uc6a9 \uc2dc \uace0\ub824 \uc0ac\ud56d<\/strong><br><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc744 \uc2e4\ubb34\uc5d0 \uc801\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba87\uac00\uc9c0 \uace0\ub824 \uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uba3c\uc800, \ubd80\ud558\uac00 \uc99d\uac00\ud558\uace0 \uac10\uc18c\ud558\ub294 \uc0c1\ud669\uc774 \ube60\ub974\uac8c \ubc18\ubcf5\ub418\uc5b4 \ud30c\ub4dc\uc758 \uc218\ub7c9\uc774 \uac10\uc18c, \uc99d\uac00 \uc5ed\uc2dc \ubc18\ubcf5\ub418\ub294 \ud604\uc0c1(Flapping)\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud558\uc5ec \uc548\uc815\ud654 \uc2dc\uac04(stabilizationWindowSeconds)\uc744 \uc801\uc808\ud558\uac8c \uc9c0\uc815\ud558\ub294 \uac83\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/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=\"\">behavior:\n  scaleDown:\n    stabilizationWindowSeconds: 300\n    policies:\n    - type: Percent\n      value: 100\n      periodSeconds: 15\n  scaleUp:\n    stabilizationWindowSeconds: 0\n    policies:\n    - type: Percent\n      value: 100\n      periodSeconds: 15\n    - type: Pods\n      value: 4\n      periodSeconds: 15\n    selectPolicy: Max<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">. behavior.scaleDown.stabilizationWindowSeconds: 300<br>\ud30c\ub4dc\uc758 \uac10\uc18c, \uc99d\uac00\uac00 \ube60\ub974\uac8c \ubc18\ubcf5\ub418\ub294 \uac83\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud558\uc5ec \uc548\uc815\ud654 \uc2dc\uac04(stabilizationWindowSeconds)\uc744 \uc9c0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc704 \uc608\uc81c\ub294 300s(5\ubd84)\uc744 \ub450\uc5b4 5\ubd84\uc774 \uc9c0\ub09c \ud6c4\uc5d0 \ud30c\ub4dc\uc758 \uc218\ub7c9\uc744 \uac10\uc18c\ud558\ub294 \uc791\uc5c5\uc744 \uc9c4\ud589\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. behavior.scaleDown.policies.value: 100, periodSeconds: 15<br>\ud55c\ubc88\uc5d0 \uac10\uc18c\ud560 \uc218 \uc788\ub294 \ud30c\ub4dc\uc758 \uc218\ub7c9\uc744 \ud604\uc7ac \uc2e4\ud589 \uc911\uc778 \ud30c\ub4dc\uc758 100%\uae4c\uc9c0 \uc9c0\uc815\ud558\uc5ec MIN PODS \uc218\ub7c9\uae4c\uc9c0 \uc904\uc77c \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4. 15\ucd08\ub9c8\ub2e4 \ucd5c\ub300 100%\uae4c\uc9c0 \ud30c\ub4dc \uc218\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. behavior.scaleUp.stabilizationWindowSeconds: 0<br>\ud30c\ub4dc\uc758 \uc218\ub7c9 \uac10\uc18c\uc640 \ub2e4\ub974\uac8c \ud30c\ub4dc\uc758 \uc218\ub7c9 \uc99d\uac00 \uc2dc \uc548\uc815\ud654 \uc2dc\uac04\uc744 \u20180\u2019\uc73c\ub85c \ub450\uc5c8\uc2b5\ub2c8\ub2e4. \ub298\uc5b4\ub098\ub294 \ud2b8\ub798\ud53d\uc744 \ube60\ub974\uac8c \ucc98\ub9ac\ud558\uae30 \uc704\ud558\uc5ec \uc548\uc815\ud654 \uc2dc\uac04\uc744 \u20180\u2019\uc73c\ub85c \uc9c0\uc815\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">. behavior.scaleUp.policies.value: 100, periodSeconds: 15, value:4, periodSeconds: 15&nbsp;<br>scaleDown \uc124\uc815\uacfc \ub3d9\uc77c\ud55c\ub370, 15\ucd08 \ub9c8\ub2e4 \ud604\uc7ac \ud30c\ub4dc\uc758 \uc218\ub97c 100% \ud37c\uc13c\ud2b8 \ub610\ub294 4\uac1c \ud30c\ub4dc\uae4c\uc9c0 \uc99d\uac00\ud558\ub3c4\ub85d \uc124\uc815\ud558\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9ac\uace0 \uc2e4\uc81c \ud2b8\ub798\ud53d\uc740 \uc99d\uac00\ud558\uc600\ub294\ub370 \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1 \ubc18\uc751\uc774 \ub2a6\uc5b4\uc11c \ud2b8\ub798\ud53d\uc744 \uc81c\ub300\ub85c \ucc98\ub9ac\ud558\uc9c0 \ubabb\ud558\ub294 \uacbd\uc6b0\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0c8\ub86d\uac8c \ub178\ub4dc\ub97c \uc2e4\ud589\ud558\uae30 \uc704\ud55c \uc2dc\uac04(Karpenter \uae30\uc900 \uc57d 40s \uac00\ub7c9), \ud30c\ub4dc\ub97c \uc2e4\ud589\ud558\ub294 \uc2dc\uac04 \ub4f1\uc774 \ucd94\uac00\ub85c \uc18c\uc694\ub429\ub2c8\ub2e4. \uc0ac\uc804\uc5d0 \uc608\uc0c1 \ud2b8\ub798\ud53d\uc5d0 \ub9de\uac8c \ucfe0\ubc84\ub124\ud2f0\uc2a4\uc758 \ub178\ub4dc\ub97c \ubbf8\ub9ac Cronjob \ub4f1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc73c\uba70 \ud639\uc740 \u2018over-provisioner\u2019\ub97c \uc774\uc6a9\ud558\uc5ec \ubbf8\ub9ac \ube44\uc5b4\uc788\ub294 \ub178\ub4dc\ub97c \uc900\ube44\ud558\ub294 \ubc29\ubc95\ub3c4 \uac00\ub2a5\ud569\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uc73c\ub85c \uc0ac\uc6a9\uc790 \ud2b8\ub798\ud53d\uc740 \uc2dc\uc2a4\ud15c \uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc5d0 \ube44\ub840\ud558\uc5ec \uc99d\uac00\ud558\uc9c0 \ubabb\ud558\ub294 \uacbd\uc6b0\ub3c4 \ub9ce\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ubcc4\ub3c4\uc758 \uc0ac\uc6a9\uc790 \uc815\uc758 \uba54\ud2b8\ub9ad\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc811\uc18d \ucee4\ub125\uc158 \uc22b\uc790\ub97c \uae30\uc900\uc73c\ub85c \ud30c\ub4dc\uc758 \uc218\ub7c9\uc744 \uc99d\uac00\ud558\ub3c4\ub85d \u2018Service Monitor\u2019, \u2018Keda\u2019 \ub4f1\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc0c1\uc73c\ub85c \uc2dc\uc2a4\ud15c \ubd80\ud558\uc5d0 \ub530\ub77c \uc790\ub3d9\uc73c\ub85c \ud30c\ub4dc\uc758 \uc218\ub7c9\uc744 \uc99d\uac00\ud558\uace0 \uac10\uc18c\ud558\ub294 HPA\ub97c \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc2b5\uc5d0 \uc0ac\uc6a9\ud55c \uc790\uc6d0\uc740 \uc544\ub798\uc640 \uac19\uc774 \uc0ad\uc81c\ud569\ub2c8\ub2e4.<br><\/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=\"\">$ (\u2388 |switch-singapore-test:default) k delete -f php-apache.yaml -f php-hpa.yaml \ndeployment.apps \"php-apache\" deleted\nservice \"php-apache\" deleted\nhorizontalpodautoscaler.autoscaling \"php-apache\" deleted<\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\ud574\ub2f9 \uae30\uc220 \ube14\ub85c\uadf8\uc5d0 \uc9c8\ubb38\uc774 \uc788\uc73c\uc2dc\uba74 \uc5b8\uc81c\ub4e0\uc9c0 \ubb38\uc758\ud574 \uc8fc\uc138\uc694. \uc9c1\uc811 \ub2f5\ubcc0\ud574 \ub4dc\ub9bd\ub2c8\ub2e4.<br>k8sqna@jennifersoft.com<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"\uc774\ubc88 \uc7a5\uc740 \ud30c\ub4dc \uc624\ud1a0\uc2a4\ucf00\uc77c\ub9c1\uc744 \uc54c\uc544\ubd05\ub2c8\ub2e4. \uc2e4\uc2b5\uc744 \ud1b5\ud558\uc5ec \uc138\ubd80 \uc124\uc815\uc744 \ud655\uc778\ud574 \ubcf4\uace0 \uc2e4\uc81c \uc6b4\uc601 \ud658\uacbd \uc801\uc6a9 \uc2dc \uc5b4\ub5a0\ud55c \ubd80\ubd84\uc744 \uace0\ub824\ud574\uc57c \ud558\ub294\uc9c0&#8230;","protected":false},"author":34,"featured_media":12504,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[386],"tags":[296,293,314,238,299,144,315,294,55,237,257],"class_list":["post-12500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kubernetes","tag-aws-eks","tag-eks","tag-hpa","tag-k8s","tag-k8sedu","tag-kubernetes","tag-metrics-server","tag-msa","tag-55","tag-237","tag-257"],"acf":[],"_links":{"self":[{"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/posts\/12500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/comments?post=12500"}],"version-history":[{"count":3,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/posts\/12500\/revisions"}],"predecessor-version":[{"id":12506,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/posts\/12500\/revisions\/12506"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/media\/12504"}],"wp:attachment":[{"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/media?parent=12500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/categories?post=12500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jennifersoft.com\/ko\/wp-json\/wp\/v2\/tags?post=12500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}