{"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\/hr\/blog\/administrirovanie\/kubernetes-1-17-kak-obnovitsya-i-ne-potratit-ves-error-budget","title":{"rendered":"Kubernetes 1.17 \u2014 kako a\u017eurirati i ne potro\u0161iti cijeli error budget","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Kubernetes 1.17 \u2014 kako a\u017eurirati i ne potro\u0161iti cijeli error budget\" src=\"\/wp-content\/uploads\/2019\/12\/562b966d36dc1c70635605ef89277bc9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n9. prosinca objavljena je nova verzija Kubernetes-a \u2014 1.17. Njegov moto je \u201eStabilnost\u201c, many zna\u010dajki su dobile GA status, a odre\u0111eni broj zastarjelih zna\u010dajki je uklonjen...<\/p>\n<p>I, kao i obi\u010dno, na\u0161 omiljeni odjeljak Akcija potrebna u datoteci <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kubernetes\/kubernetes\/blob\/master\/CHANGELOG-1.17.md\">CHANGELOG-1.17.md<\/a><\/noindex> treba pa\u017enju.<\/p>\n<p>Pozabavit \u0107emo se rukama...<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>Pa\u017enja, Storage!<\/h3>\n<p>\nA\u017euriranje kubelet-a u verziji 1.17 nije podr\u017eano, jer je promijenjena putanja do block volumes. Prije a\u017euriranja \u010dvora, potrebno je evakuirati sve podove s njim pomo\u0107u naredbe <code>kubectl drain<\/code>.<\/p>\n<h4>Zastave i vrata\u2026<\/h4>\n<p>\nU changelog-u obi\u010dno pi\u0161u da je neki flag ili feature gate uklonjen ili dodat, ali iz nepoznatog razloga nikada ne navedu aplikaciju u kojoj se ta promena dogodila\u2026:<\/p>\n<ul>\n<li> Uklonjena zastavica <code>--include-uninitialized<\/code> u <code>kubectl<\/code>; <\/li>\n<li> Funkcionalnost koju je dopu\u0161tala feature gates <code>GCERegionalPersistentDisk<\/code>, <code>EnableAggregatedDiscoveryTimeout<\/code> i <code>PersistentLocalVolumes<\/code>, sada se uvijek koristi i ne mo\u017ee se isklju\u010diti. Ove opcije su uklonjene iz mogu\u0107ih klju\u010deva <code>api-server<\/code> i <code>controller-manager<\/code>; <\/li>\n<li> Mre\u017ea IP adresa za usluge sada se ne dodjeljuje po defaultu. Potrebno ju je odrediti pomo\u0107u zastavice <code>--service-cluster-ip-range<\/code> prilikom pokretanja API servera i controller-manager-a.<\/li>\n<\/ul>\n<p><\/p>\n<h4>kubeadm<\/h4>\n<p><\/p>\n<ul>\n<li> Kubeadm je nau\u010dio konfigurirati automatsko a\u017euriranje certifikata za kubelet na svim \u010dvorovima klastera, uklju\u010duju\u0107i i prvog majstora, gdje je izvr\u0161ena naredba <code>kubeadm init<\/code>. Nuspojava je postala potreba za prisutno\u0161\u0107u datoteke s po\u010detnom konfiguracijom kubelet-a <code>bootstrap-kubelet.conf<\/code> umjesto <code>kubelet.conf<\/code> za vrijeme izvr\u0161avanja <code>kubeadm init<\/code>;\n<\/li>\n<li> Pri dodavanju autorizacijskih re\u017eima u API <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a> kubeadm vi\u0161e ne ubacuje na\u010dine <code>Node, RBAC<\/code> u manifest stati\u010dkog poda, omogu\u0107uju\u0107i potpuno promjenu konfiguracije.<\/li>\n<\/ul>\n<p><\/p>\n<h4>RBAC<\/h4>\n<p>\nUklonjene su ugra\u0111ene klasterske uloge <code>system:csi-external-provisioner<\/code> i <code>system:csi-external-attacher<\/code>.<\/p>\n<h4>Zastarjelo\u2026<\/h4>\n<p>\nOdre\u0111ene zna\u010dajke su progla\u0161ene zastarjelima, no jo\u0161 uvijek se podr\u017eavaju. No, posebno bismo \u017eeljeli istaknuti postupak prelaska na kori\u0161tenje ContainerStorageInterface. Administratori koji su postavili vlastite (ne upravljane) klastere u AWS i GCE trebaju planirati prelazak na kori\u0161tenje CSI Driver-a za rad s trajnim volumenima \u2014 umjesto upravlja\u010dkih programa koji su ugra\u0111eni u Kubernetes. U tom im treba pomo\u0107i postupak CSIMigration \u2014 o\u010dekujemo da \u0107e se pojaviti vodi\u010d s korak-po-korak uputama. Administratori koji koriste druge pru\u017eatelje za povezivanje trajnih diskova trebaju po\u010deti tra\u017eiti i \u010ditati dokumentaciju: u verziji 1.21 obe\u0107avaju kona\u010dno uklanjanje svih ugra\u0111enih voza\u010da.<br \/>\n<br \/>Izvor: <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 5.0.4 - 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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