{"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\/sl\/blog\/administrirovanie\/obzor-vozmozhnostej-kubespray-otlichie-originalnoj-versii-i-nashego-forka","title":{"rendered":"\u201ePregled mogu\u0107nosti Kubespray\u201d: Razlika izme\u0111u originalne verzije i na\u0161eg fork-a","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>23. september ob 20:00 MDS Sergej Bondarev bo vodil brezpla\u010dni seminar \u00ab<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\">Pregled mo\u017enosti Kubespray<\/a><\/noindex>\u00bb, kjer bo predstavil, kako pripraviti kubespray, da bo hitr, u\u010dinkovit in odporen na napake.<\/p>\n<p><\/p>\n<p>Sergej Bondarev bo razlo\u017eil razliko med izvirno razli\u010dico in na\u0161im forkom:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"\u201ePregled mogu\u0107nosti Kubespray\u201d: Razlika izme\u0111u originalne verzije i na\u0161eg fork-a\" 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>Razlika med izvirno razli\u010dico in na\u0161im forkom. <\/p>\n<p><\/p>\n<p>Tisti, ki so se \u017ee sre\u010dali s kubesprayem, se verjetno zdaj spra\u0161ujejo, zakaj postavljam kubeadm v nasprotje s kubesprayem, saj kubespray za ustvarjanje klasterja pravzaprav uporablja kubeadm in na prvi pogled deluje kot skript za namestitev paketov in avtomatizacijo zagon.<\/p>\n<p><\/p>\n<p>Ampak tako ni bilo vedno, sprva je kubespray vse komponente namestil sam:<\/p>\n<p><\/p>\n<ul>\n<li>zbira klaster etcd;<\/li>\n<li>namesti kubelete, generira certifikate, konfiguracije in dostopne tokene za stati\u010dne pode kontrolne igre in druge slu\u017ebene komponente;<\/li>\n<li>ustvari ra\u010dune storitev za delovne vozli\u0161\u010da in jih pove\u017ee v klaster.<\/li>\n<\/ul>\n<p><\/p>\n<p>A predlani so to funkcionalnost odstranili, pustili le kubeadm. Ki takrat ni bil ravno najbolj\u0161i. To me je prizadelo in sem naredil svoj fork, v katerem sem ohranil klasi\u010dni na\u010din namestitve, in zdaj ta fork vzdr\u017eujem v aktualnem stanju, cherry-pickam komitete iz izvirnega kubespraya zase. Ob tem \u0161e dodajam izbolj\u0161ave klasi\u010dnega na\u010dina na nove spremembe.<\/p>\n<p><\/p>\n<p>Na koncu je razlika med klasterji, ustvarjenimi z mojim forkom in izvirnikom \u2014 to kube-proxy in trajanje veljavnosti certifikatov.<\/p>\n<p><\/p>\n<p>V mojem forku je vse ostalo, kot je bilo prej \u2014 kube-proxy se za\u017eene kot stati\u010dni pod, certifikati se izdajajo za 100 let.<\/p>\n<p><\/p>\n<p>V Kubeadmu se kube-proxy za\u017eene kot daemonset, certifikati pa se izdajajo za 1 leto, kar pomeni, da jih je treba ob\u010dasno podalj\u0161ati. Kubeadm se je kon\u010dno nau\u010dil to po\u010deti z enim ukazom.<\/p>\n<p><\/p>\n<p>Razlika je majhna, in danes uporabljamo obe razli\u010dici.<\/p>\n<p><\/p>\n<p>Zna\u010dilnosti (pomanjkljivosti) pri industrijski uporabi:<\/p>\n<p><\/p>\n<p>Scenarij je univerzalen, zato ni zelo hiter. Lastnega lahko precej pospe\u0161ite, \u010de odstranite preverjanja in se za\u017eenete iz pripravljenega podobe.<\/p>\n<p><\/p>\n<p>\u0421\u0446\u0435\u043d\u0430\u0440\u0438\u0439 \u0441\u043b\u043e\u0436\u043d\u044b\u0439, \u0435\u0441\u0442\u044c \u043d\u0435\u043b\u043e\u0433\u0438\u0447\u043d\u044b\u0435 \u043c\u0435\u0441\u0442\u0430, \u0442\u044f\u0436\u0435\u043b\u043e\u0435 \u043d\u0430\u0441\u043b\u0435\u0434\u0438\u0435 legacy. \u0423\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u0434\u043e\u043f. \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u0432 \u0438 \u0441\u043e\u0444\u0442\u0430 \u0447\u0435\u0440\u0435\u0437 \u043a\u0443\u0431\u0441\u043f\u0440\u0435\u0439 \u2014 \u0445\u043e\u0440\u043e\u0448\u0430 \u0434\u043b\u044f \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f \u0438 \u0442\u0435\u0441\u0442\u043e\u0432. \u0412 \u043f\u0440\u043e\u043c. \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0437\u0430\u0432\u0438\u0441\u0435\u0442\u044c \u043e\u0442 \u043a\u0443\u0431\u0441\u043f\u0440\u0435\u044f \u043d\u0435 \u043e\u0447\u0435\u043d\u044c \u0437\u0434\u0440\u0430\u0432\u0430\u044f \u0438\u0434\u0435\u044f, \u043f\u043b\u044e\u0441 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u043e\u0444\u0442\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043e \u043c\u0435\u0442\u043e\u0434\u043e\u043c &quot;\u0443\u0431\u0438\u043b-\u0441\u0434\u0435\u043b\u0430\u043b \u043d\u043e\u0432\u044b\u0439&quot; \u2014 \u0437\u043d\u0430\u0447\u0438\u0442 \u043f\u0435\u0440\u0435\u0440\u044b\u0432 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438.<\/p>\n<p><\/p>\n<p>Mo\u017ee se dodavati samo radne \u010dvorove, sa masterima postoje neki problemi sa sertifikatima, a scenarij ne obuhvata sve mogu\u0107e probleme koji mogu nastati.<\/p>\n<p><\/p>\n<p>Na primer, imao sam problem sa kubeadm-om kada je padao u trenutku dodavanja drugog i tre\u0107eg mastera, a nakon toga je Kubespray radio kubeadm reset na \u010dvoru i poku\u0161avao ponovo da doda master.<\/p>\n<p><\/p>\n<p>Samo je problem bio u tome \u0161to se do trenutka kvara drugi instanca etcd ve\u0107 registrovao, i po\u0161to je i on brisan nakon resetovanja, dobijali smo haos \u2014 etcd klaster od dva \u010dvora, od kojih je jedan obrisan, a drugi vi\u0161e ne prima klijente. Na kraju je klaster umro, ne rodiv\u0161i se.<\/p>\n<p><\/p>\n<p>Open source kakav jeste.<\/p>\n<p><\/p>\n<p>Sve to i mnogo vi\u0161e na besplatnom vebinaru \u201e<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\">Pregled mo\u017enosti Kubespray<\/a><\/noindex>\u201c 23. septembra u 20:00 po MSK. <\/p>\n<p><\/p>\n<p>Pridru\u017eite se!<\/p>\n<p>Izvor: <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 5.0.4 - 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 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