{"id":53857,"date":"2019-12-12T00:00:00","date_gmt":"2019-12-11T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/kubernetes-1-17-kak-obnovitsya-i-ne-potratit-ves-error-budget"},"modified":"2020-02-18T14:01:47","modified_gmt":"2020-02-18T11:01:47","slug":"kubernetes-1-17-kak-obnovitsya-i-ne-potratit-ves-error-budget","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/administrirovanie\/kubernetes-1-17-kak-obnovitsya-i-ne-potratit-ves-error-budget","title":{"rendered":"Kubernetes 1.17 \u2014 jak uaktualni\u0107 i nie wyda\u0107 ca\u0142ego bud\u017cetu na b\u0142\u0119dy","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Kubernetes 1.17 \u2014 jak uaktualni\u0107 i nie wyda\u0107 ca\u0142ego bud\u017cetu na b\u0142\u0119dy\" src=\"\/wp-content\/uploads\/2019\/12\/562b966d36dc1c70635605ef89277bc9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n9 grudnia ukaza\u0142a si\u0119 kolejna wersja Kubernetes \u2014 1.17. Jej has\u0142o to \u201eStabilno\u015b\u0107\u201d, wiele funkcji uzyska\u0142o status GA, a pewna liczba przestarza\u0142ych funkcji zosta\u0142a usuni\u0119ta\u2026<\/p>\n<p>I, jak zawsze, nasza ulubiona sekcja Action Required w pliku <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kubernetes\/kubernetes\/blob\/master\/CHANGELOG-1.17.md\">CHANGELOG-1.17.md<\/a><\/noindex> wymaga uwagi.<\/p>\n<p>Pora dzia\u0142a\u0107\u2026<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>Uwaga, Storage!<\/h3>\n<p>\nAktualizacja kubelet w trybie na \u017cywo w wersji 1.17 nie jest wspierana, poniewa\u017c zmieni\u0142a si\u0119 \u015bcie\u017cka do wolumen\u00f3w blokowych. Przed aktualizacj\u0105 w\u0119z\u0142a nale\u017cy przenie\u015b\u0107 wszystkie pody z u\u017cyciem polecenia <code>kubectl drain<\/code>.<\/p>\n<h4>Flagi i bramy...<\/h4>\n<p>\nW changelogu zazwyczaj pisze si\u0119, \u017ce usuni\u0119to lub dodano jaki\u015b flag lub feature gate, ale jako\u015b nigdy nie wspomina si\u0119 o aplikacji, w kt\u00f3rej to zmiana mia\u0142a miejsce...<\/p>\n<ul>\n<li> Usuni\u0119to flag\u0119 <code>--include-uninitialized<\/code> u <code>kubectl<\/code>; <\/li>\n<li> Funkcjonalno\u015b\u0107, kt\u00f3r\u0105 umo\u017cliwia\u0142y feature gates <code>GCERegionalPersistentDisk<\/code>, <code>EnableAggregatedDiscoveryTimeout<\/code> i <code>PersistentLocalVolumes<\/code>, teraz jest zawsze u\u017cywana i nie mo\u017cna jej wy\u0142\u0105czy\u0107. Te opcje zosta\u0142y usuni\u0119te z mo\u017cliwych kluczy <code>api-server<\/code> i <code>controller-manager<\/code>; <\/li>\n<li> Sie\u0107 adres\u00f3w IP dla us\u0142ug nie jest ju\u017c przypisywana domy\u015blnie. Nale\u017cy j\u0105 okre\u015bli\u0107 za pomoc\u0105 flagi <code>--service-cluster-ip-range<\/code> podczas uruchamiania serwera API i controller-managera.<\/li>\n<\/ul>\n<p><\/p>\n<h4>kubeadm<\/h4>\n<p><\/p>\n<ul>\n<li> Kubeadm nauczy\u0142 si\u0119 konfigurowa\u0107 automatyczne aktualizacje certyfikat\u00f3w dla kubelet na wszystkich w\u0119z\u0142ach klastra, w tym r\u00f3wnie\u017c na pierwszym masterze, gdzie wykonano polecenie <code>kubeadm init<\/code>. Efektem ubocznym by\u0142o wymaganie posiadania pliku z pocz\u0105tkow\u0105 konfiguracj\u0105 kubelet <code>bootstrap-kubelet.conf<\/code> zamiast <code>kubelet.conf<\/code> w trakcie dzia\u0142ania <code>kubeadm init<\/code>;\n<\/li>\n<li> Przy dodawaniu tryb\u00f3w autoryzacji do API <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/\"   title=\"serwer\" data-wpil-keyword-link=\"linked\">serwer<\/a> kubeadm ju\u017c nie dodaje tryb\u00f3w <code>Node, RBAC<\/code> do manifestu statycznego poda, co pozwala na ca\u0142kowit\u0105 zmian\u0119 konfiguracji.<\/li>\n<\/ul>\n<p><\/p>\n<h4>RBAC<\/h4>\n<p>\nUsuni\u0119to wbudowane role klastr\u00f3w <code>system:csi-external-provisioner<\/code> i <code>system:csi-external-attacher<\/code>.<\/p>\n<h4>Nieu\u017cywane...<\/h4>\n<p>\nNiekt\u00f3re funkcje zosta\u0142y og\u0142oszone jako przestarza\u0142e, jednak nadal s\u0105 wspierane. Szczeg\u00f3lnie warto wspomnie\u0107 o przej\u015bciu na u\u017cycie ContainerStorageInterface. Administratorzy, kt\u00f3rzy uruchomili w\u0142asne (nie zarz\u0105dzane) klastry w AWS i GCE, powinni zaplanowa\u0107 migracj\u0119 na u\u017cycie CSI Driver do obs\u0142ugi trwa\u0142ych wolumen\u00f3w \u2013 zamiast sterownik\u00f3w wbudowanych w Kubernetes. W tym pom\u00f3c ma procedura CSIMigration \u2013 czekamy na pojawienie si\u0119 przewodnika krok po kroku. Administratorzy, kt\u00f3rzy korzystaj\u0105 z innych dostawc\u00f3w do pod\u0142\u0105czania trwa\u0142ych dysk\u00f3w, powinni szuka\u0107 i czyta\u0107 dokumentacj\u0119: w wersji 1.21 obiecano ostateczne usuni\u0119cie wszystkich wbudowanych sterownik\u00f3w.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/479534\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>9 \u0434\u0435\u043a\u0430\u0431\u0440\u044f \u0432\u044b\u0448\u043b\u0430 \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f Kubernetes \u2014 1.17. \u0415\u0435 \u0434\u0435\u0432\u0438\u0437 \u2014 \u00ab\u0421\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u00bb, \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u043e \u0444\u0438\u0447 \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0438 \u0441\u0442\u0430\u0442\u0443\u0441 GA, \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u0445 \u0444\u0438\u0447 \u0431\u044b\u043b\u043e \u0443\u0434\u0430\u043b\u0435\u043d\u043e\u2026 \u0418, \u043a\u0430\u043a \u0432\u0441\u0435\u0433\u0434\u0430, \u043d\u0430\u0448 \u043b\u044e\u0431\u0438\u043c\u044b\u0439 \u0440\u0430\u0437\u0434\u0435\u043b Action Required \u0444\u0430\u0439\u043b\u0430 CHANGELOG-1.17.md \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043a \u0441\u0435\u0431\u0435 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044f. \u041f\u043e\u0440\u0430\u0431\u043e\u0442\u0430\u0435\u043c \u0440\u0443\u043a\u0430\u043c\u0438\u2026 \u0412\u043d\u0438\u043c\u0430\u043d\u0438\u0435, Storage ! \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 kubelet \u043d\u0430 \u043b\u0435\u0442\u0443 \u0432 \u0432\u0435\u0440\u0441\u0438\u0438 1.17 \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f, \u043f\u043e\u0442\u043e\u043c\u0443 \u0447\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0438\u043b\u0441\u044f \u043f\u0443\u0442\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":53858,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-53857","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"9 \u0434\u0435\u043a\u0430\u0431\u0440\u044f \u0432\u044b\u0448\u043b\u0430.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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