{"id":94812,"date":"2020-09-22T07:42:40","date_gmt":"2020-09-22T05:42:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka"},"modified":"2020-09-22T07:42:40","modified_gmt":"2020-09-22T05:42:40","slug":"obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka","title":{"rendered":"\u00abOversigt over mulighederne med Kubespray\u00bb: Forskellen mellem den oprindelige version og vores fork","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>23. september kl. 20.00 MSK vil Sergey Bondarev afholde et gratis webinar \"<noindex><a rel=\"nofollow\" href=\"https:\/\/slurm.io\/webinar-kubespray-overview?utm_source=habr&amp;utm_medium=promo&amp;utm_campaign=webinar_kubsprey_23-09-2020&amp;utm_content=post_17-09-2020&amp;utm_term=dzygovbrodskiy\">Oversigt over Kubesprays funktioner<\/a><\/noindex>\", hvor han vil fort\u00e6lle, hvordan man forbereder kubespray, s\u00e5 det bliver hurtigt, effektivt og fejltolerant.<\/p>\n<p><\/p>\n<p>Sergey Bondarev vil forklare forskellen mellem den originale version og vores fork:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"\u00abOversigt over mulighederne med Kubespray\u00bb: Forskellen mellem den oprindelige version og vores fork\" src=\"\/wp-content\/uploads\/2020\/09\/f45b10f9a5a7c360906ad58e9e643a08.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Forskellen mellem den originale version og vores fork. <\/p>\n<p><\/p>\n<p>De, der allerede har arbejdet med kubespray, undrer sig nok over, hvorfor jeg s\u00e6tter kubeadm i kontrast til kubespray, da kubespray netop bruges til at oprette et cluster og kalder kubeadm, og ved f\u00f8rste \u00f8jekast ligner det et installationsscript til pakker og automatiseret ops\u00e6tning.<\/p>\n<p><\/p>\n<p>Men det har ikke altid v\u00e6ret s\u00e5dan; oprindeligt installerede kubespray alle komponenter selv:<\/p>\n<p><\/p>\n<ul>\n<li>opsatte etcd-clusteret;<\/li>\n<li>installerede kubelets, genererede certifikater, konfigurationer og adgangstokens til de statiske pods i kontrolplanen og andre servicekomponenter;<\/li>\n<li>oprettede servicekonti for arbejdsnoder og tilsluttede dem til clusteret.<\/li>\n<\/ul>\n<p><\/p>\n<p>Men i det forrige \u00e5r blev denne funktionalitet fjernet, kun kubeadm blev tilbage. P\u00e5 det tidspunkt var det ikke s\u00e5 godt. Jeg blev ked af det og lavede min egen fork, hvor jeg bevarede den klassiske installationsmetode, og nu vedligeholder jeg denne fork i en aktuel tilstand ved at cherry-picke commits fra det originale kubespray ind i min egen. Undervejs videreudviklede jeg den klassiske metode til de nye \u00e6ndringer.<\/p>\n<p><\/p>\n<p>Resultatet er, at forskellen mellem klustrene, skabt med min fork og den originale, er kube-proxy og certificaters gyldighedsperiode.<\/p>\n<p><\/p>\n<p>I min fork forblev alt som f\u00f8r \u2014 kube-proxy k\u00f8rer som en statisk pod, certifikater udstedes i 100 \u00e5r.<\/p>\n<p><\/p>\n<p>I Kubeadm k\u00f8rer kube-proxy som daemonset, og certifikater udstedes i 1 \u00e5r, og de skal periodisk forl\u00e6nges. Kubeadm har endelig l\u00e6rt at g\u00f8re dette med en enkelt kommando.<\/p>\n<p><\/p>\n<p>Forskellen er lille, og i dag bruger vi begge varianter.<\/p>\n<p><\/p>\n<p>S\u00e6rlige forhold (mangler) ved industriel drift:<\/p>\n<p><\/p>\n<p>Scenariet er universelt, og derfor ikke specielt hurtigt. Eget kan betydeligt accelereres ved at fjerne kontroller og starte fra et f\u00e6rdigt billede.<\/p>\n<p><\/p>\n<p>Scenariet er komplekst med illogiske elementer og et tungt legacy. Installation af yderligere controllere og software via Kubespray er godt til tr\u00e6ning og tests. I produktionsdrift er det ikke en s\u00e6rlig fornuftig id\u00e9 at v\u00e6re afh\u00e6ngig af Kubespray, plus opdateringen af softwaren er udf\u00f8rt med metoden \"dr\u00e6bt-lavet ny\" \u2014 hvilket betyder, at der er nedetid.<\/p>\n<p><\/p>\n<p>Man kan kun tilf\u00f8je arbejdsnoder, der er nogle nuancer med mastere vedr\u00f8rende certifikater, og scenariet d\u00e6kker ikke alle mulige problemer, der kan opst\u00e5.<\/p>\n<p><\/p>\n<p>For eksempel havde jeg et problem med kubeadm, da det faldt, n\u00e5r jeg fors\u00f8gte at tilf\u00f8je den anden og tredje master, og derefter fors\u00f8gte Kubespray at foretage kubeadm reset p\u00e5 noden og pr\u00f8vede at tilf\u00f8je masteren igen.<\/p>\n<p><\/p>\n<p>Problemet var dog, at p\u00e5 tidspunktet for fejlen var den anden etcd-instant allerede registreret, og da den ogs\u00e5 blev fjernet efter reset, s\u00e5 fik vi et mareridt \u2014 et etcd-kluster best\u00e5ende af to noder, hvor den ene blev fjernet og den anden ikke l\u00e6ngere accepterede klienter. Resultatet var, at klustret d\u00f8de, f\u00f8r det blev f\u00f8dt.<\/p>\n<p><\/p>\n<p>Opensource som det er.<\/p>\n<p><\/p>\n<p>Alt dette og meget mere p\u00e5 gratis webinar \"<noindex><a rel=\"nofollow\" href=\"https:\/\/slurm.io\/webinar-kubespray-overview?utm_source=habr&amp;utm_medium=promo&amp;utm_campaign=webinar_kubsprey_23-09-2020&amp;utm_content=post_17-09-2020&amp;utm_term=dzygovbrodskiy\">Oversigt over Kubesprays funktioner<\/a><\/noindex>\" den 23. september kl. 20.00 MSK. <\/p>\n<p><\/p>\n<p>Deltag!<\/p>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/519890\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>23 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f 20.00 \u041c\u0421\u041a \u0421\u0435\u0440\u0433\u0435\u0439 \u0411\u043e\u043d\u0434\u0430\u0440\u0435\u0432 \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u0442 \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u044b\u0439 \u0432\u0435\u0431\u0438\u043d\u0430\u0440 \u00ab\u041e\u0431\u0437\u043e\u0440 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 Kubespray\u00bb, \u0433\u0434\u0435 \u0440\u0430\u0441\u0441\u043a\u0430\u0436\u0435\u0442, \u043a\u0430\u043a \u0433\u043e\u0442\u043e\u0432\u044f\u0442 kubespray, \u0447\u0442\u043e\u0431\u044b \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u043e\u0441\u044c \u0431\u044b\u0441\u0442\u0440\u043e, \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e \u0438 \u043e\u0442\u043a\u0430\u0437\u043e\u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e. \u0421\u0435\u0440\u0433\u0435\u0439 \u0411\u043e\u043d\u0434\u0430\u0440\u0435\u0432 \u0440\u0430\u0441\u0441\u043a\u0430\u0436\u0435\u0442 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0438 \u043d\u0430\u0448\u0435\u0433\u043e \u0444\u043e\u0440\u043a\u0430: \u041e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0438 \u043d\u0430\u0448\u0435\u0433\u043e \u0444\u043e\u0440\u043a\u0430. \u0422\u0435, \u043a\u0442\u043e \u0441 \u043a\u0443\u0431\u0441\u043f\u0440\u0435\u0435\u043c \u0443\u0436\u0435 \u0441\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u043b\u0441\u044f, \u043d\u0430\u0432\u0435\u0440\u043d\u043e\u0435 \u0441\u0435\u0439\u0447\u0430\u0441 \u043d\u0435\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0442, \u043f\u043e\u0447\u0435\u043c\u0443 \u044f kubeadm \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e \u043a\u0443\u0431\u0441\u043f\u0440\u0435\u044e, \u0432\u0435\u0434\u044c \u043a\u0443\u0431\u0441\u043f\u0440\u0435\u0439 \u0434\u043b\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":94813,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-94812","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"23 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f 20.00 \u041c\u0421\u041a \u0421\u0435\u0440\u0433\u0435\u0439 \u0411\u043e\u043d\u0434\u0430\u0440\u0435\u0432 \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u0442 \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u044b\u0439 \u0432\u0435\u0431\u0438\u043d\u0430\u0440 \u00ab\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"da_DK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u00ab\u041e\u0431\u0437\u043e\u0440 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 Kubespray\u00bb: \u041e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0438 \u043d\u0430\u0448\u0435\u0433\u043e \u0444\u043e\u0440\u043a\u0430 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"23 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f 20.00 \u041c\u0421\u041a \u0421\u0435\u0440\u0433\u0435\u0439 \u0411\u043e\u043d\u0434\u0430\u0440\u0435\u0432 \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u0442 \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u044b\u0439 \u0432\u0435\u0431\u0438\u043d\u0430\u0440 \u00ab\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2020-09-22T05:42:40+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2020-09-22T05:42:40+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47\"Oversigt over Kubespray-funktioner\": Forskellen mellem den originale version og vores fork | ProHoster","description":"23. september kl. 20.00 MSK vil Sergey Bondarev afholde et gratis webinar \"","canonical_url":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"da_DK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u00ab\u041e\u0431\u0437\u043e\u0440 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 Kubespray\u00bb: \u041e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0438 \u043d\u0430\u0448\u0435\u0433\u043e \u0444\u043e\u0440\u043a\u0430 | ProHoster","og:description":"23 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f 20.00 \u041c\u0421\u041a \u0421\u0435\u0440\u0433\u0435\u0439 \u0411\u043e\u043d\u0434\u0430\u0440\u0435\u0432 \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u0442 \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u044b\u0439 \u0432\u0435\u0431\u0438\u043d\u0430\u0440 \u00ab","og:url":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2020-09-22T05:42:40+00:00","article:modified_time":"2020-09-22T05:42:40+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"94812","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 11:17:28","updated":"2022-10-03 07:40:21","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/94812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/comments?post=94812"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/94812\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media\/94813"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media?parent=94812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/categories?post=94812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/tags?post=94812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}