{"id":598,"date":"2020-04-15T16:11:26","date_gmt":"2020-04-15T07:11:26","guid":{"rendered":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=598"},"modified":"2020-04-15T18:28:16","modified_gmt":"2020-04-15T09:28:16","slug":"%ec%bf%a0%eb%b2%84%eb%84%a4%ed%8b%b0%ec%8a%a4kubernetes-%ea%b5%ac%ec%84%b1%ec%9a%94%ec%86%8c","status":"publish","type":"post","link":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=598","title":{"rendered":"\ucfe0\ubc84\ub124\ud2f0\uc2a4(kubernetes) \uad6c\uc131\uc694\uc18c"},"content":{"rendered":"

\ucfe0\ubc84\ub124\ud2f0\uc2a4(kubernetes) \uad6c\uc131\uc694\uc18c<\/h1>\n

\ucc38\uc870<\/a><\/p>\n

kubernetes \ub294 \ub2e4\uc218\uc758 \uc11c\ubc84\ub97c \uad00\ub9ac\ud558\ub294 \ud234\uc785\ub2c8\ub2e4.<\/p>\n

\ud558\ub098\uc758 \uc11c\ubc84\uac00 \uc544\ub2c8\ub77c, \uc5ec\ub7ec \ub300\uc758 \uc11c\ubc84\ub97c \uad00\ub9ac\ud558\uae30 \uc704\ud55c \ud234\uc774\uae30\uc5d0 \uc5ec\ub7ec\uac00\uc9c0 \uad6c\uc131\uc694\uc18c\uac00 \uc874\uc7ac\ud569\ub2c8\ub2e4.<\/p>\n

kubernetes \ub294 \ub9c8\uc2a4\ud130(master), \ub178\ub4dc(node), \uc560\ub4dc\uc628(addon)\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n

master<\/h2>\n

\ub9c8\uc2a4\ud130\uc5d0\ub294 etcd, kube-apiserver, kube-scheduler, kube-controller-manager, cloud-controller-manager \ub4f1\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4.<\/p>\n

etcd<\/h3>\n

etcd \ub294 key-value \uae30\ubc18\uc758 \ub370\uc774\ud0c0 \uc800\uc7a5\uc18c\uc785\ub2c8\ub2e4. kubernetes \uac00 \uad00\ub9ac\ud558\ub294 \ub370\uc774\ud0c0\ub97c \ubaa8\ub450 \uad00\ub9ac\ud569\ub2c8\ub2e4. \uc548\uc815\uc131\uc744 \uc704\ud574 etcd \uc790\uccb4\ub97c \ud074\ub7ec\uc2a4\ud130\ub85c \uad6c\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

kube-apiserver<\/h3>\n

kube-apiserver \ub97c kubernetes \uc5d0 \ub4e4\uc5b4\uc624\ub294 \ubaa8\ub4e0 API \ud638\ucd9c\uc744 \ub2f4\ub2f9\ud569\ub2c8\ub2e4. \ud638\ucd9c\ub41c API \uc758 \uc720\ud6a8\uc131\uc744 \uac80\uc99d\ud558\uace0, \uc2e4\uc81c \uc11c\ube44\uc2a4\ub85c \uc804\ub2ec\ud569\ub2c8\ub2e4.<\/p>\n

kube-scheduler<\/h3>\n

kube-scheduler \ub294 \ud074\ub7ec\uc2a4\ud130 \ub0b4 \uc5ec\ub7ec \ub178\ub4dc(node) \uc911, \uc790\uc6d0\ud560\ub2f9\uc774 \uac00\ub2a5\ud55c \ub178\ub4dc\ub97c \uc120\ud0dd\ud558\uc5ec, \uadf8\uacf3\uc5d0 \ud3ec\ub4dc(pod) \ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n

\ud2b9\uc815 \ub178\ub4dc\uc5d0 \ub370\uc774\ud0c0\uac00 \uc788\ub294 \uacbd\uc6b0, \uadf8 \ub178\ub4dc\ub97c \uc9c0\uc815\ud558\uc5ec \ud560\ub2f9\ud558\ub294 \uac83\ub3c4 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n

kube-controller-manager<\/h3>\n

\ud3ec\ub4dc\ub294 \uac01\uac01\uc758 \ucee8\ud2b8\ub864\ub7ec\uc5d0 \uc758\ud574 \ucee8\ud2b8\ub864 \ub429\ub2c8\ub2e4. kube-controller-manager \ub294 \uc774\ub7ec\ud55c \ucee8\ud2b8\ub864\ub7ec\ub97c \uad00\ub9ac\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n

cloud-controller-manager<\/h3>\n

\ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud574 \uc8fc\ub294 \uacf3\ub4e4\uc5d0\uc11c \ucfe0\ubc84\ub124\ud2f0\uc2a4\uc758 \ucee8\ud2b8\ub864\ub7ec\ub4e4\uc744 \uc790\uc2e0\ub4e4\uc758 \uc11c\ube44\uc2a4\uc640 \uc5f0\uacc4\ud574\uc11c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

cloud-controller-manager \ub294 \uac01 \ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4 \uc81c\uacf5\uc790\uac00 \uad00\ub9ac\ud558\ub3c4\ub85d \ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

cloud-controller-manager 4 \uac00\uc9c0 \ucee8\ud2b8\ub864\ub7ec\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n

Node Controller<\/h4>\n

\ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4 \ub0b4\uc5d0\uc11c \ub178\ub4dc\ub97c \uad00\ub9ac\ud558\uae30 \uc704\ud574\uc11c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

Route Controller<\/h4>\n

\uac01 \ud074\ub77c\uc6b0\ub4dc \uc778\ud504\ub77c\ub0b4\uc5d0\uc11c\uc758 \ub124\ud2b8\uc6cc\ud06c \ub77c\uc6b0\ud305\uc744 \uad00\ub9ac\ud558\ub294\ub370 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

kubernetes \ub294 \ub124\ud2b8\uc6cc\ud06c\ub97c \uc790\uccb4\uc801\uc73c\ub85c \uad00\ub9ac\ud569\ub2c8\ub2e4. \uc989, \ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4\uc5c5\uccb4\uac00 \uc81c\uacf5\ud558\ub294 Private IP \uc640\ub294 \ub610\ub2e4\ub978 IP \ub97c \uc81c\uacf5\ud558\uace0, \uc2ec\uc9c0\uc5b4 SSL \uc778\uc99d\uc11c\ub97c \uc790\uccb4\uc801\uc73c\ub85c \uc0dd\uc131\ud574\uc11c https<\/code> \ud1b5\uc2e0\uc744 \ud569\ub2c8\ub2e4.<\/p>\n

Service Controller<\/h4>\n

\uac01 \ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \ub85c\ub4dc\ubc38\ub7f0\uc11c\ub97c \uc0dd\uc131\/\uac31\uc2e0\/\uc0ad\uc81c\ud558\ub294\ub370 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

Volume Controller<\/h4>\n

\ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4\uc5d0\uc11c \ubcfc\ub968\uc744 \uc0dd\uc131\ud574\uc11c \ub178\ub4dc\uc5d0 \ubd99\uc774\uace0 \ub9c8\uc6b4\ud2b8\ud574\uc11c \ubcfc\ub968\uc744 \uad00\ub9ac\ud558\ub294\ub370 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

node<\/h2>\n

\ub178\ub4dc\ub294 kubelet, kube-proxy, Container Runtime \uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n

kubelet<\/h3>\n

\ud3ec\ub4dc\ub0b4\uc758 \ucee8\ud14c\uc774\ub108\ub4e4\uc774 \uc2e4\ud589\ub418\ub294\uac78 \uc9c1\uc811\uc801\uc73c\ub85c \uad00\ub9ac\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n

kube-proxy<\/h3>\n

\ucfe0\ubc84\ub124\ud2f0\uc2a4\ub294 \ud074\ub7ec\uc2a4\ud130 \ub0b4\ubd80\uc5d0 \ubcc4\ub3c4\uc758 \uac00\uc0c1 \ub124\ud2b8\uc6cc\ud06c\ub97c \uc124\uc815\ud558\uace0 \uad00\ub9ac\ud569\ub2c8\ub2e4. kube-proxy\ub294 \uc774\ub7f0 \uac00\uc0c1 \ub124\ud2b8\uc6cc\ud06c\uac00 \ub3d9\uc791\ud560 \uc218 \uc788\uac8c \ud558\ub294 \uc2e4\uc9c8\uc801\uc778 \uc5ed\ud560\uc744 \ud558\ub294 \ud504\ub85c\uc138\uc2a4\uc785\ub2c8\ub2e4.<\/p>\n

Container Runtime<\/h3>\n

Docker \ub4f1 \uc2e4\uc81c\ub85c \ucee8\ud14c\uc774\ub108\ub97c \uc2e4\ud589\uc2dc\ud0a4\ub294 \uad6c\ud604\uccb4\uc785\ub2c8\ub2e4.<\/p>\n

\ucee8\ud14c\uc774\ub108\uc5d0 \uad00\ud55c \ud45c\uc900\uc744 \uc81c\uc815\ud558\ub294 \uc5ed\ud560\uc744 \ud558\ub294 OCI(Open Container Initiative, https:\/\/www.opencontainers.org\/)\uc758<\/a> \ub7f0\ud0c0\uc784 \uaddc\uaca9(runtime-spec)\uc744 \uad6c\ud604\ud558\uace0 \uc788\ub294 Container Runtime \uc774\ub77c\uba74 \ucfe0\ubc84\ub124\ud2f0\uc2a4\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

addon<\/h2>\n

\ub124\ud2b8\uc6cc\ud0b9 \uc560\ub4dc\uc628<\/h3>\n

\ucfe0\ubc84\ub124\ud2f0\uc2a4\ub294 \ud074\ub7ec\uc2a4\ud130 \ub0b4\ubd80\uc5d0 \uac00\uc0c1\ub124\ud2b8\uc6cc\ud06c\ub97c \uad6c\uc131\ud574\uc11c \uc0ac\uc6a9\ud558\ub294\ub370, \uc774\ub54c kuby-proxy \uc774\uc678\uc5d0 \ub124\ud2b8\uc6cc\ud0b9 \uad00\ub828\ud55c \uc560\ub4dc\uc628\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

DNS \uc560\ub4dc\uc628<\/h3>\n

\ucfe0\ubc84\ub124\ud2f0\uc2a4 \uc11c\ube44\uc2a4\ub4e4\uc5d0 DNS \ub808\ucf54\ub4dc\ub97c \uc81c\uacf5\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ucfe0\ubc84\ub124\ud2f0\uc2a4 \ub0b4\ubd80\uc5d0\uc11c \uc2e4\ud589\ub41c \ucee8\ud14c\uc774\ub108\ub4e4\uc740 \uc790\ub3d9\uc73c\ub85c DNS\uc11c\ubc84\uc5d0 \ub4f1\ub85d\ub429\ub2c8\ub2e4.<\/p>\n

\ub300\uc2dc\ubcf4\ub4dc \uc560\ub4dc\uc628<\/h3>\n

\ud074\ub7ec\uc2a4\ud130 \ud604\ud669\uc744 \ud55c\ub208\uc5d0 \uc27d\uac8c \ud30c\uc545\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucee8\ud14c\uc774\ub108 \uc790\uc6d0 \ubaa8\ub2c8\ud130\ub9c1<\/h3>\n

\ud074\ub7ec\uc2a4\ud130 \ub0b4\ubd80\uc5d0\uc11c \uc2e4\ud589\uc911\uc778 \ucee8\ud14c\uc774\ub108\uc758 \uc0c1\ud0dc\ub97c \ubaa8\ub2c8\ud130\ub9c1\ud558\uae30 \uc704\ud574\uc11c\ub294 cpu, \uba54\ubaa8\ub9ac \uac19\uc740 \ud544\uc694\ud55c \uba54\ud2b8\ub9ad \ub370\uc774\ud130\ub4e4\uc744 \uc2dc\uacc4\uc5f4\ud615\uc2dd\uc73c\ub85c \uc800\uc7a5\ud558\uace0 \ubcfc\uc218 \uc788\ub294 \ubc29\ubc95\uc744 \uc81c\uacf5\ud558\ub294\ub370 \ud544\uc694\ud55c \uc560\ub4dc\uc628\uc785\ub2c8\ub2e4.<\/p>\n

\ud074\ub7ec\uc2a4\ud130 \ub85c\uae45<\/h3>\n

\ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4 \uc5c5\uccb4\uac00 \uc81c\uacf5\ud558\ub294 \uc778\uc2a4\ud134\uc2a4\ub97c \uc774\uc6a9\ud560 \uacbd\uc6b0, \uc11c\ube44\uc2a4 \uc5c5\uccb4\uac00 \ub85c\uadf8\ub97c \uc218\uc9d1\ud574 \uc8fc\uc9c0\ub9cc, \uc790\uccb4\uc801\uc73c\ub85c \ud074\ub7ec\uc2a4\ud130\ub97c \uad6c\uc131\ud558\ub294 \uacbd\uc6b0 \ub85c\uadf8 \uc218\uc9d1\ubc29\uc548\uc744 \uc138\uc6cc\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ubcf4\ud1b5 ELK \uac00 \ub9ce\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\ucfe0\ubc84\ub124\ud2f0\uc2a4(kubernetes) \uad6c\uc131\uc694\uc18c \ucc38\uc870 kubernetes \ub294 \ub2e4\uc218\uc758 \uc11c\ubc84\ub97c \uad00\ub9ac\ud558\ub294 \ud234\uc785\ub2c8\ub2e4. \ud558\ub098\uc758 \uc11c\ubc84\uac00 \uc544\ub2c8\ub77c, \uc5ec\ub7ec \ub300\uc758 \uc11c\ubc84\ub97c \uad00\ub9ac\ud558\uae30 \uc704\ud55c \ud234\uc774\uae30\uc5d0 \uc5ec\ub7ec\uac00\uc9c0 \uad6c\uc131\uc694\uc18c\uac00 \uc874\uc7ac\ud569\ub2c8\ub2e4. kubernetes \ub294 \ub9c8\uc2a4\ud130(master), \ub178\ub4dc(node), \uc560\ub4dc\uc628(addon)\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. master \ub9c8\uc2a4\ud130\uc5d0\ub294 etcd, kube-apiserver, kube-scheduler, kube-controller-manager, cloud-controller-manager \ub4f1\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4. etcd etcd \ub294 key-value \uae30\ubc18\uc758 \ub370\uc774\ud0c0 \uc800\uc7a5\uc18c\uc785\ub2c8\ub2e4. kubernetes \uac00 \uad00\ub9ac\ud558\ub294 \ub370\uc774\ud0c0\ub97c \ubaa8\ub450 \uad00\ub9ac\ud569\ub2c8\ub2e4. \uc548\uc815\uc131\uc744 \uc704\ud574 etcd \uc790\uccb4\ub97c \ud074\ub7ec\uc2a4\ud130\ub85c \uad6c\uc131\ud560\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-598","post","type-post","status-publish","format-standard","hentry","category-kubernetes"],"_links":{"self":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=598"}],"version-history":[{"count":6,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/598\/revisions"}],"predecessor-version":[{"id":609,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/598\/revisions\/609"}],"wp:attachment":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}