{"id":55399,"date":"2020-01-19T00:00:00","date_gmt":"2020-01-18T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/slyorm-devops-luchshe-rabotayushhaya-sinitsa-za-3-dnya-chem-prekrasnyj-zhuravl-v-dalekom-budushhem"},"modified":"2020-02-18T14:03:30","modified_gmt":"2020-02-18T11:03:30","slug":"slyorm-devops-luchshe-rabotayushhaya-sinitsa-za-3-dnya-chem-prekrasnyj-zhuravl-v-dalekom-budushhem","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/slyorm-devops-luchshe-rabotayushhaya-sinitsa-za-3-dnya-chem-prekrasnyj-zhuravl-v-dalekom-budushhem","title":{"rendered":"Slurm DevOps \u2014 l\u00e9pe funguj\u00edc\u00ed s\u00fdkorka za 3 dny, ne\u017e kr\u00e1sn\u00fd je\u0159\u00e1b v dalek\u00e9 budoucnosti","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>M\u00e1m r\u00e1d projekty trvaj\u00edc\u00ed t\u00fdden a d\u011bs\u00ed m\u011b projekty trvaj\u00edc\u00ed rok. V agile se mi velmi l\u00edbila my\u0161lenka MVP a inkrementu, to je zkr\u00e1tka moje: vytvo\u0159it funk\u010dn\u00ed \u010d\u00e1st, implementovat ji a posunout se d\u00e1l.<\/p>\n<p><\/p>\n<p>DevOps transformace, jak ji diskutuj\u00ed v knih\u00e1ch a na konferenc\u00edch, je pr\u00e1v\u011b projekt na rok. Nebo na roky.<\/p>\n<p><\/p>\n<p>Sestavili jsme n\u00e1\u0161 kurz pro DevOps v paradigmatu \u201eMVP DevOps za jeden sprint\u201c a \u201ep\u0159ipravenost na inkrementy\u201c. Jin\u00fdmi slovy, \u201eaby se \u00fa\u010dastn\u00edk mohl po n\u00e1vratu okam\u017eit\u011b n\u011bco implementovat a z\u00edskat prosp\u011bch\u201c.<\/p>\n<p><\/p>\n<p>MVP DevOps: v kurzu jsou n\u00e1stroje pro z\u00e1kladn\u00ed DevOps procesy. Nezam\u011b\u0159ovali jsme se na to, abychom prozkoumali a porovnali v\u0161echny syst\u00e9my CI\/CD nebo odhalili hloubky p\u0159\u00edstupu Infrastructure as Code. D\u00e1v\u00e1me jeden srozumiteln\u00fd stack: Gitlab CI\/CD, Ansible, Terraform a Packer, Molecule, Prometheus, EFK. \u00da\u010dastn\u00edci mohou po absolvov\u00e1n\u00ed kurzu shrom\u00e1\u017edit z v\u00fdukov\u00fdch materi\u00e1l\u016f infrastrukturu pro pilotn\u00ed projekt a pracovat na n\u00ed.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Slurm DevOps \u2014 l\u00e9pe funguj\u00edc\u00ed s\u00fdkorka za 3 dny, ne\u017e kr\u00e1sn\u00fd je\u0159\u00e1b v dalek\u00e9 budoucnosti\" src=\"\/wp-content\/uploads\/2020\/01\/a421d5a38fda6be2cbb2efcebf1aa7ef.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>P\u0159ipravenost na inkrementy: ka\u017ed\u00fd prvek d\u00e1v\u00e1me s velk\u00fdm mno\u017estv\u00edm praktick\u00fdch p\u0159\u00edklad\u016f. Lze vz\u00edt jeden n\u00e1stroj a pracovat na jeho implementaci podle v\u00fdukov\u00fdch pl\u00e1n\u016f. Nap\u0159\u00edklad napsat Ansible playbook pro nasazen\u00ed dev-okol\u00ed nebo p\u0159ipojit bota a spravovat <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a> z telefonu. To znamen\u00e1, \u017ee za t\u00fdden z\u00edsk\u00e1te konkr\u00e9tn\u00ed praktick\u00fd v\u00fdsledek. I kdy\u017e je nekone\u010dn\u011b vzd\u00e1len od DevOps transformace cel\u00e9 firmy, je tu, funguje a p\u0159in\u00e1\u0161\u00ed u\u017eitek.<\/p>\n<p><\/p>\n<h2 id=\"temy-slyorma-devops\">T\u00e9mata Slurm DevOps<\/h2>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 1: Nejlep\u0161\u00ed praktiky Git<\/strong> \u2014 hovo\u0159\u00ed samo za sebe.<br \/>\n<strong>T\u00e9ma \u010d. 2: Pr\u00e1ce s aplikac\u00ed z pohledu v\u00fdvoje<\/strong> \u2014 in\u017een\u00fdrovi jsou pot\u0159eba dovednosti administr\u00e1tora a v\u00fdvoj\u00e1\u0159e, proto mluv\u00edme spr\u00e1vc\u016fm o v\u00fdvoji.<\/p>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 3: Z\u00e1klady CI\/CD<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>\u00davod do automatizace CI\/CD<\/li>\n<li>Z\u00e1klady pr\u00e1ce s Gitlab CI<\/li>\n<li>Nejlep\u0161\u00ed praktiky s gitlab-runnerem<\/li>\n<li>N\u00e1stroje bash, make, gradle jako sou\u010d\u00e1st CI\/CD a nejen to<\/li>\n<li>Docker jako zp\u016fsob \u0159e\u0161en\u00ed probl\u00e9m\u016f CI<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 4: Gitlab CI\/CD v produkci<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>Konkurence p\u0159i spu\u0161t\u011bn\u00ed job<\/li>\n<li>Kontrola a omezen\u00ed prov\u00e1d\u011bn\u00ed: only, when<\/li>\n<li>Pr\u00e1ce s artefakty<\/li>\n<li>\u0160ablony, inkluze a microservices: zjednodu\u0161ujeme nasazen\u00ed<\/li>\n<\/ul>\n<p><\/p>\n<p>Seznamujeme studenty se z\u00e1kladn\u00edmi pojmy a koncepty CI\/CD a n\u00e1stroji pro realizaci CI\/CD. D\u00edky tomu si student bude moci samostatn\u011b vybrat n\u00e1vrhov\u00fd vzor CI\/CD a vhodn\u00fd n\u00e1stroj realizace.<\/p>\n<p><\/p>\n<p>Pot\u00e9 ukazujeme realizaci CI\/CD v Gitlabu a podrobn\u011b rozeb\u00edr\u00e1me konfiguraci, p\u0159i\u010dem\u017e se zam\u011b\u0159ujeme na pokro\u010dil\u00e9 pou\u017e\u00edv\u00e1n\u00ed Gitlab CI. Student si d\u00edky tomu bude schopen samostatn\u011b nastavit Gitlab CI pro sv\u00e9 projekty.<\/p>\n<p><\/p>\n<p>Ve srovn\u00e1n\u00ed s prvn\u00edm DevOps Sl\u0117rmem jsme teori\u00ed zkr\u00e1tili na polovinu (jednu hodinu na t\u00e9ma), opustili jsme p\u0159ehled v\u0161ech syst\u00e9m\u016f a zam\u011b\u0159ili se pouze na Gitlab CI. Soust\u0159edili jsme se na praxi a p\u0159idali mnoho osv\u011bd\u010den\u00fdch postup\u016f.<\/p>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 5: Infrastruktura jako k\u00f3d<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>IaC: p\u0159\u00edstup k infrastruktu\u0159e jako k\u00f3du<\/li>\n<li>Cloudov\u00ed poskytovatel\u00e9 jako dodavatel\u00e9 infrastruktury <\/li>\n<li>N\u00e1stroje pro inicializaci syst\u00e9m\u016f, sestaven\u00ed obraz\u016f (packer) <\/li>\n<li>IaC na p\u0159\u00edkladu Terraformu<\/li>\n<li>Ukl\u00e1d\u00e1n\u00ed konfigurac\u00ed, spolupr\u00e1ce, automatizace aplikac\u00ed <\/li>\n<li>Praktika vytv\u00e1\u0159en\u00ed Ansible playbook\u016f <\/li>\n<li>Idempotentnost, deklarativnost <\/li>\n<li>IaC na p\u0159\u00edkladu Ansible<\/li>\n<\/ul>\n<p><\/p>\n<p>Sn\u00ed\u017eili jsme teoretickou \u010d\u00e1st o UI a openstack cli a zam\u011b\u0159ili jsme se na praxi.<br \/>\nProzkoum\u00e1me dva p\u0159\u00edstupy IaC, p\u0159i\u010dem\u017e pou\u017eijeme stejnou aplikaci, abychom uk\u00e1zali klady a z\u00e1pory ka\u017ed\u00e9ho p\u0159\u00edstupu. D\u00edky tomu student pochop\u00ed, jak\u00fd p\u0159\u00edstup kdy pou\u017e\u00edt, a bude schopen pracovat jak s Terraformem, tak s Ansible.<\/p>\n<p><\/p>\n<p>V t\u00e9matu o Terraformu se prakticky zam\u011b\u0159\u00edme na t\u00fdmovou pr\u00e1ci a ukl\u00e1d\u00e1n\u00ed stavu do datab\u00e1ze. P\u0159i pr\u00e1ci s moduly student s\u00e1m nap\u00ed\u0161e a nastav\u00ed modul, nau\u010d\u00ed se s n\u00edm pracovat: znovu pou\u017e\u00edt, verzovat. P\u0159id\u00e1me pr\u00e1ci s Consulem a uk\u00e1\u017eeme, v jak\u00fdch p\u0159\u00edpadech je nezbytn\u00fd a jak ho spr\u00e1vn\u011b pou\u017e\u00edt. <\/p>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 6: Testov\u00e1n\u00ed infrastruktury<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>Zkoum\u00e1me, pro\u010d se nep\u00ed\u0161\u00ed testy?<\/li>\n<li>Jak\u00e9 testy existuj\u00ed v IaC?<\/li>\n<li>Statick\u00e9 analyz\u00e1tory, jsou opravdu zbyte\u010dn\u00e9?<\/li>\n<li>Jednotkov\u00e1 testov\u00e1n\u00ed IaC na p\u0159\u00edkladu ansible + molecule<\/li>\n<li>Testov\u00e1n\u00ed jako sou\u010d\u00e1st CI<\/li>\n<li>Testy na steroidech nebo jak ne\u010dekat 5 hodin na dokon\u010den\u00ed test\u016f pro IaC<\/li>\n<\/ul>\n<p><\/p>\n<p>Sn\u00ed\u017eili jsme teoretickou \u010d\u00e1st, m\u00e9n\u011b vypr\u00e1v\u011bn\u00ed o Vagrant\/Molecule, v\u00edce praxe a p\u0159\u00edm\u00e9ho testov\u00e1n\u00ed, se zam\u011b\u0159en\u00edm na lintry a pr\u00e1ci s nimi. D\u00edv\u00e1me se na to z pohledu CI.<br \/>\njak urychlit testov\u00e1n\u00ed. V praxi bude:<\/p>\n<p><\/p>\n<ul>\n<li>vlastn\u00ed linter, kter\u00fd kontroluje p\u0159\u00edtomnost povinn\u00fdch prom\u011bnn\u00fdch pro hostitele v z\u00e1vislosti na roli;<\/li>\n<li>do CI testov\u00e1n\u00ed p\u0159id\u00e1v\u00e1me pouze ty role, kter\u00e9 se zm\u011bnily, co\u017e v\u00fdrazn\u011b zkracuje dobu prov\u00e1d\u011bn\u00ed test\u016f;<\/li>\n<li>p\u0159id\u00e1v\u00e1me testov\u00e1n\u00ed sc\u00e9n\u00e1\u0159\u016f. Nasad\u00edme aplikaci jako celek, jako integra\u010dn\u00ed test.<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 7: Monitoring infrastruktury s Prometheus<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>Jak postavit zdrav\u00fd monitoringov\u00fd syst\u00e9m<\/li>\n<li>Monitoring jako n\u00e1stroj pro anal\u00fdzu, efektivitu v\u00fdvoje a stabilitu k\u00f3du, je\u0161t\u011b p\u0159ed uveden\u00edm do prodeje<\/li>\n<li>Nastaven\u00ed prometheus + alertmanager + grafana<\/li>\n<li>P\u0159ejdeme od monitorov\u00e1n\u00ed zdroj\u016f k monitorov\u00e1n\u00ed aplikac\u00ed<\/li>\n<\/ul>\n<p><\/p>\n<p>Budeme hodn\u011b mluvit o monitorov\u00e1n\u00ed mikroslu\u017eeb: ID po\u017eadavk\u016f, n\u00e1stroj pro monitoring API. Bude spousta osv\u011bd\u010den\u00fdch postup\u016f a hodn\u011b samostatn\u00e9 pr\u00e1ce.<\/p>\n<p><\/p>\n<p>Nap\u00ed\u0161eme sv\u016fj export\u00e9r. Nastav\u00edme monitoring nejen produk\u010dn\u00ed infrastruktury a aplikac\u00ed, ale i sestaven\u00ed v Gitlabu. Pod\u00edv\u00e1me se na statistiky selhan\u00fdch test\u016f. Pod\u00edv\u00e1me se v praxi, jak bude vypadat monitoring bez healthCheck a s n\u00edm.<\/p>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 8: Logov\u00e1n\u00ed aplikace s ELK<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>P\u0159ehled Elastic a jeho n\u00e1stroj\u016f<\/li>\n<li>ELK\/Elastic Stack\/x-pack \u2014 co je co a jak\u00fd je v tom rozd\u00edl?<\/li>\n<li>Jak\u00e9 \u00fakoly lze \u0159e\u0161it pomoc\u00ed ElasticSearch (vyhled\u00e1v\u00e1n\u00ed, \u00falo\u017ei\u0161t\u011b, vlastnosti \u0161k\u00e1lov\u00e1n\u00ed, flexibilita nastaven\u00ed)<\/li>\n<li>Monitoring infrastruktury (x-pack)<\/li>\n<li>Logy kontejner\u016f a aplikac\u00ed (x-pack)<\/li>\n<li>Logov\u00e1n\u00ed na p\u0159\u00edkladu na\u0161\u00ed aplikace<\/li>\n<li>Osv\u011bd\u010den\u00e9 postupy pr\u00e1ce s Kibana<\/li>\n<li>Open Distro for Elasticsearch od Amazonu<\/li>\n<\/ul>\n<p><\/p>\n<p>T\u00e9ma bylo kompletn\u011b p\u0159epracov\u00e1no, vede ho Eduard Medv\u011bd\u011bv, mnoz\u00ed ho vid\u011bli na webin\u00e1\u0159i o DevOps a SRE. P\u0159edstav\u00ed a uk\u00e1\u017ee osv\u011bd\u010den\u00e9 postupy pr\u00e1ce s EFK na p\u0159\u00edkladu \u0161kol\u00edc\u00ed aplikace. Bude praxe s Kibana.<\/p>\n<p><\/p>\n<p><strong>T\u00e9ma \u010d. 9: Automatizace infrastruktury s ChatOps<\/strong><\/p>\n<p><\/p>\n<ul>\n<li>DevOps a ChatOps<\/li>\n<li>ChatOps: siln\u00e9 str\u00e1nky<\/li>\n<li>Slack a alternativy<\/li>\n<li>Boti pro ChatOps<\/li>\n<li>Hubot a alternativy<\/li>\n<li>Bezpe\u010dnost<\/li>\n<li>Testov\u00e1n\u00ed<\/li>\n<li>Nejlep\u0161\u00ed a nejhor\u0161\u00ed praktiky<\/li>\n<\/ul>\n<p><\/p>\n<p>V ChatOps byla p\u0159id\u00e1na praxe autentizace s d\u011blen\u00edm pr\u00e1v, potvrzen\u00ed \u010dinnost\u00ed jin\u00fdm u\u017eivatelsk\u00fdm, teorie a praxe alternativy Slack v podob\u011b Mattermost, teorie unit a integra\u010dn\u00edch test\u016f pro bota.<\/p>\n<p><\/p>\n<p>Sl\u00f6rm DevOps za\u010d\u00edn\u00e1 30. ledna. Cena \u2014 30 000.<br \/>\nPro ty, kte\u0159\u00ed do\u010detli, sleva 15 % na kurz o DevOps s promo k\u00f3dem habrapost.<\/p>\n<p><\/p>\n<p>Registrace <noindex><a rel=\"nofollow\" href=\"https:\/\/slurm.io\/devops\/?utm_source=habr%5E_%5Eamp%5E_%5Eutm_medium=post%5E_%5Eamp%5E_%5Eutm_campaign=devops%5E_%5Eamp%5E_%5Eutm_content=post_16-01-2020%5E_%5Eamp%5E_%5Eutm_term=skobin\">zde<\/a><\/noindex><\/p>\n<p><\/p>\n<p>Budu r\u00e1d, kdy\u017e v\u00e1s uvid\u00edm na Sl\u00f6rmech!<\/p>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/484302\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u042f \u043b\u044e\u0431\u043b\u044e \u043f\u0440\u043e\u0435\u043a\u0442 \u0434\u043b\u0438\u043d\u043e\u0439 \u0432 \u043d\u0435\u0434\u0435\u043b\u044e, \u0438 \u043c\u0435\u043d\u044f \u043f\u0443\u0433\u0430\u044e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u044b \u0434\u043b\u0438\u043d\u043e\u0439 \u0432 \u0433\u043e\u0434. \u0412 \u0430\u0434\u0436\u0430\u0439\u043b\u0435 \u043c\u043d\u0435 \u043e\u0447\u0435\u043d\u044c \u043f\u043e\u043d\u0440\u0430\u0432\u0438\u043b\u0430\u0441\u044c \u043a\u043e\u043d\u0446\u0435\u043f\u0446\u0438\u044f MVP \u0438 \u0438\u043d\u043a\u0440\u0435\u043c\u0435\u043d\u0442\u0430, \u044d\u0442\u043e \u043f\u0440\u044f\u043c \u043c\u043e\u0435: \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u043e\u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b\u0439 \u043a\u0443\u0441\u043e\u043a, \u0432\u043d\u0435\u0434\u0440\u0438\u0442\u044c \u0435\u0433\u043e \u0438 \u0434\u0432\u0438\u043d\u0443\u0442\u044c\u0441\u044f \u0434\u0430\u043b\u044c\u0448\u0435. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c DevOps-\u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u0432 \u0442\u043e\u043c \u0432\u0438\u0434\u0435, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0435\u0435 \u043e\u0431\u0441\u0443\u0436\u0434\u0430\u044e\u0442 \u0432 \u043a\u043d\u0438\u0433\u0430\u0445 \u0438 \u043d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u044f\u0445, \u044d\u0442\u043e \u043a\u0430\u043a \u0440\u0430\u0437 \u043f\u0440\u043e\u0435\u043a\u0442 \u0434\u043b\u0438\u043d\u043e\u0439 \u0432 \u0433\u043e\u0434. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":55400,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-55399","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=\"\u042f \u043b\u044e\u0431\u043b\u044e \u043f\u0440\u043e\u0435\u043a\u0442 \u0434\u043b\u0438\u043d\u043e\u0439 \u0432 \u043d\u0435\u0434\u0435\u043b\u044e, \u0438 \u043c\u0435\u043d\u044f \u043f\u0443\u0433\u0430\u044e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u044b \u0434\u043b\u0438\u043d\u043e\u0439 \u0432 \u0433\u043e\u0434.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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