{"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\/sv\/blog\/administrirovanie\/kubernetes-1-17-kak-obnovitsya-i-ne-potratit-ves-error-budget","title":{"rendered":"Kubernetes 1.17 \u2014 hur man uppdaterar utan att \u00f6verskrida error budget","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Kubernetes 1.17 \u2014 hur man uppdaterar utan att \u00f6verskrida error budget\" src=\"\/wp-content\/uploads\/2019\/12\/562b966d36dc1c70635605ef89277bc9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nDen 9 december sl\u00e4pptes en ny version av Kubernetes - 1.17. Dess motto \u00e4r \"Stabilitet\", flera funktioner har f\u00e5tt GA-status, och ett antal f\u00f6r\u00e5ldrade funktioner har tagits bort\u2026<\/p>\n<p>Och, som alltid, v\u00e5r \u00e4lskade del Action Required i filen <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/kubernetes\/kubernetes\/blob\/master\/CHANGELOG-1.17.md\">CHANGELOG-1.17.md<\/a><\/noindex> kr\u00e4ver uppm\u00e4rksamhet.<\/p>\n<p>L\u00e5t oss arbeta p\u00e5 det\u2026<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>Observera, Storage!<\/h3>\n<p>\nUppdatering av kubelet p\u00e5 spr\u00e5ng i version 1.17 st\u00f6ds inte, eftersom s\u00f6kv\u00e4gen till blockvolymer har \u00e4ndrats. Innan noden uppdateras m\u00e5ste alla pods evakueras med kommandot <code>kubectl drain<\/code>.<\/p>\n<h4>Flaggor och portar\u2026<\/h4>\n<p>\nI changelog skriver man vanligtvis att en viss flagga eller funktion har lagts till eller tagits bort, men man n\u00e4mner s\u00e4llan vilken applikation som genomgick denna \u00e4ndring\u2026:<\/p>\n<ul>\n<li> Flaggan har tagits bort <code>--include-uninitialized<\/code> f\u00f6r <code>kubectl<\/code>; <\/li>\n<li> Funktionaliteten som till\u00e4ts av funktionernas portar <code>GCERegionalPersistentDisk<\/code>, <code>EnableAggregatedDiscoveryTimeout<\/code> och <code>Best\u00e4ndigaLokalaVolymer<\/code>, anv\u00e4nds nu alltid och kan inte st\u00e4ngas av. Dessa alternativ har tagits bort fr\u00e5n m\u00f6jliga nycklar <code>api-server<\/code> och <code>controller-manager<\/code>; <\/li>\n<li> IP-adressn\u00e4tverket f\u00f6r tj\u00e4nster tilldelas nu inte automatiskt. Det m\u00e5ste specificeras med flaggan <code>--service-cluster-ip-range<\/code> vid start av API-servern och controller-manager.<\/li>\n<\/ul>\n<p><\/p>\n<h4>kubeadm<\/h4>\n<p><\/p>\n<ul>\n<li> Kubeadm har l\u00e4rt sig att konfigurera automatisk uppdatering av certifikat f\u00f6r kubelet p\u00e5 alla kluster-noder, \u00e4ven p\u00e5 den f\u00f6rsta mastern d\u00e4r kommandot utf\u00f6rdes <code>kubeadm init<\/code>. En bieffekt av detta \u00e4r kravet p\u00e5 att ha en fil med den initiala konfigurationen f\u00f6r kubelet <code>bootstrap-kubelet.conf<\/code> ist\u00e4llet f\u00f6r <code>kubelet.conf<\/code> under k\u00f6rning <code>kubeadm init<\/code>;\n<\/li>\n<li> Vid till\u00e4gg av autentiseringsl\u00e4gen i API <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sv\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a> kubeadm l\u00e4gger inte l\u00e4ngre till l\u00e4gena <code>Node, RBAC<\/code> i manifestet f\u00f6r den statiska podden, vilket g\u00f6r att man helt kan \u00e4ndra konfigurationen.<\/li>\n<\/ul>\n<p><\/p>\n<h4>RBAC<\/h4>\n<p>\nInbyggda klusterroller har tagits bort <code>system:csi-external-provisioner<\/code> och <code>system:csi-external-attacher<\/code>.<\/p>\n<h4>Avvecklad\u2026<\/h4>\n<p>\nEtt antal funktioner har f\u00f6rklarats som f\u00f6r\u00e5ldrade, men de st\u00f6ds fortfarande. Men framf\u00f6r allt vill vi p\u00e5peka \u00f6verg\u00e5ngsprocessen till anv\u00e4ndning av ContainerStorageInterface. Administrat\u00f6rer som har distribuerat sina egna (inte hanterade) kluster i AWS och GCE m\u00e5ste planera f\u00f6r \u00f6verg\u00e5ngen till att anv\u00e4nda CSI-drivrutiner f\u00f6r att arbeta med permanenta volymer - ist\u00e4llet f\u00f6r drivrutiner som \u00e4r inbyggda i Kubernetes. CSIMigration-proceduren ska hj\u00e4lpa dem - vi inv\u00e4ntar en steg-f\u00f6r-steg-guide. Administrat\u00f6rer som anv\u00e4nder andra leverant\u00f6rer f\u00f6r att ansluta permanenta diskar b\u00f6r nu s\u00f6ka och l\u00e4sa dokumentationen: i version 1.21 lovas att alla inbyggda drivrutiner ska tas bort permanent.<br \/>\n<br \/>K\u00e4lla: <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 - 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