{"id":37586,"date":"2019-10-31T22:18:27","date_gmt":"2019-10-31T19:18:27","guid":{"rendered":"https:\/\/prohoster.info\/blog\/infrastructure-as-code-pervoe-znakomstvo\/"},"modified":"2019-10-31T22:18:27","modified_gmt":"2019-10-31T19:18:27","slug":"infrastructure-as-code-pervoe-znakomstvo","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/infrastructure-as-code-pervoe-znakomstvo","title":{"rendered":"Infrastructure as code: prv\u00e9 zozn\u00e1menie","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V na\u0161ej spolo\u010dnosti prebieha proces onboardingu SRE t\u00edmu. Za\u010dal som sa tejto t\u00e9me venova\u0165 z poh\u013eadu v\u00fdvoja. Po\u010das toho som mal my\u0161lienky a postrehy, o ktor\u00e9 by som sa chcel podeli\u0165 s ostatn\u00fdmi v\u00fdvoj\u00e1rmi. V tomto \u010dl\u00e1nku sa zam\u00fd\u0161\u013eam nad t\u00fdm, \u010do sa deje, ako sa to deje a ako s t\u00fdm v\u0161etk\u00fdm \u010falej \u017ei\u0165. <\/p>\n<p><img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/d154a2fbbd0dd846c763db178f02702e.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<blockquote><p><b>Pokra\u010dovanie s\u00e9rie \u010dl\u00e1nkov nap\u00edsan\u00fdch na z\u00e1klade prezent\u00e1ci\u00ed na na\u0161ej vn\u00fatornej akcii <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dodopizzaio\/blog\/462033\/\">DevForum<\/a><\/noindex><\/b>: <\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dodopizzaio\/blog\/463469\/\">1. Ma\u010dka Schr\u00f6dingera bez krabice: probl\u00e9m konsenzu v distribuovan\u00fdch syst\u00e9moch.<\/a><\/noindex><br \/>\n2. Infrastructure as code. (Tu ste)<br \/>\n3. Generovanie Typescript kontraktov na z\u00e1klade c# modelov. (V procese&#8230;)<br \/>\n4. \u00davod do konsenzu\u00e1lneho algoritmu Raft. (V procese&#8230;)<br \/>\n\u2026<\/p><\/blockquote>\n<p>\nRozhodli sme sa vytvori\u0165 SRE t\u00edm, realizuj\u00fac my\u0161lienky <noindex><a rel=\"nofollow\" href=\"https:\/\/landing.google.com\/sre\/books\/\">google sre<\/a><\/noindex>. Nabrali sme program\u00e1torov z na\u0161ich vlastn\u00fdch v\u00fdvoj\u00e1rov a poslali ich na p\u00e1r mesiacov na \u0161kolenie. <\/p>\n<p>Pred t\u00edmom st\u00e1li nasleduj\u00face vzdel\u00e1vacie \u00falohy:<\/p>\n<ul>\n<li>Op\u00edsa\u0165 na\u0161u infra\u0161trukt\u00faru, ktor\u00e1 je v\u00e4\u010d\u0161inou v Microsoft Azure, vo forme k\u00f3du (Terraform a v\u0161etko, \u010do s t\u00fdm s\u00favis\u00ed). <\/li>\n<li>Nau\u010di\u0165 v\u00fdvoj\u00e1rov pracova\u0165 s infra\u0161trukt\u00farou. <\/li>\n<li>Pripravi\u0165 v\u00fdvoj\u00e1rov na pohotovosti.<\/li>\n<\/ul>\n<p><\/p>\n<h2>Zav\u00e1dzame pojem Infrastructure as code<\/h2>\n<p>\nV be\u017enom modely sveta (tradi\u010dn\u00e9 spravovanie) sa znalosti o infra\u0161trukt\u00fare nach\u00e1dzaj\u00fa na dvoch miestach:<\/p>\n<ol>\n<li>Bu\u010f vo form\u011b vedomost\u00ed v hlav\u00e1ch expertov.<img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/2400dea0a90c24b05c275b709bbd2057.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/li>\n<li>Alebo s\u00fa tieto inform\u00e1cie na nejak\u00fdch strojov, z ktor\u00fdch \u010das\u0165 poznaj\u00fa experti. No nie je ist\u00e9, \u017ee osoba zvonka (ak by na\u0161a cel\u00e1 t\u00edm n\u00e1hle zomrela) dok\u00e1\u017ee pochopi\u0165, \u010do a ako funguje. Na stroji m\u00f4\u017ee by\u0165 ve\u013ea inform\u00e1ci\u00ed: pr\u00edstupy, cron joby, podma\u010dkan\u00fd (pozri <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Mount_(computing)\">disk mounting<\/a><\/noindex>) disk a proste nekone\u010dn\u00fd zoznam toho, \u010do sa m\u00f4\u017ee dia\u0165. Na z\u00e1klade toho je zlo\u017eit\u00e9 pochopi\u0165, \u010do sa v skuto\u010dnosti deje.<img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/37bafea85a641c48683c35975f67f24d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/li>\n<\/ol>\n<p>\nV oboch pr\u00edpadoch sa ocit\u00e1me v pasci, st\u00e1vaj\u00fac sa z\u00e1visl\u00fdmi:<\/p>\n<ul>\n<li>bu\u010f od \u010dloveka, ktor\u00fd je smrte\u013en\u00fd, podliehaj\u00faci chorob\u00e1m, zamilovanostiam, v\u00fdkyvom n\u00e1lady a jednoducho be\u017en\u00fdm v\u00fdpovediam;<\/li>\n<li>alebo od fyzicky funguj\u00faceho stroja, ktor\u00fd tie\u017e pad\u00e1, kradne sa, prin\u00e1\u0161a prekvapenia a nepohodlia. <\/li>\n<\/ul>\n<p>\nS\u00e1m sa prirodzene nab\u00edja n\u00e1zor, \u017ee ide\u00e1lne by v\u0161etko malo by\u0165 preveden\u00e9 do \u013eahko \u010ditate\u013en\u00e9ho, udr\u017eiavan\u00e9ho a kvalitne nap\u00edsan\u00e9ho k\u00f3du. <\/p>\n<p>Tak\u017ee infra\u0161trukt\u00fara ako k\u00f3d (Infrastructure as Code \u2013 IaC) je popis celej existuj\u00facej infra\u0161trukt\u00fary vo forme k\u00f3du, ako aj sprievodn\u00e9 prostriedky na pr\u00e1cu s n\u00edm a jeho pretransformovanie do re\u00e1lnej infra\u0161trukt\u00fary.<\/p>\n<p><b class=\"spoiler_title\">Pre\u010do v\u0161etko previes\u0165 do k\u00f3du<\/b>\u013dudia nie s\u00fa stroje. Nedok\u00e1\u017eu si v\u0161etko zapam\u00e4ta\u0165. Reakcia \u010dloveka a stroja sa l\u00ed\u0161i. V\u0161etko automatizovan\u00e9 potenci\u00e1lne funguje r\u00fdchlej\u0161ie ako v\u0161etko, \u010do rob\u00ed \u010dlovek. Najd\u00f4le\u017eitej\u0161ie je ma\u0165 jeden zdroj pravdy (single source of truth). <\/p>\n<p><b class=\"spoiler_title\">Odkia\u013e sa ber\u00fa nov\u00ed SRE in\u017einieri<\/b>Tak\u017ee sme sa rozhodli zapoji\u0165 nov\u00fdch SRE in\u017einierov, ale odkia\u013e ich z\u00edska\u0165? Kniha s spr\u00e1vnymi odpove\u010fami (<noindex><a rel=\"nofollow\" href=\"https:\/\/landing.google.com\/sre\/books\/\">Google SRE Book<\/a><\/noindex>) n\u00e1m hovor\u00ed: od v\u00fdvoj\u00e1rov. Predsa len pracuj\u00fa s k\u00f3dom a vy dosahujete ide\u00e1lny stav.<\/p>\n<p>Dlho a intenz\u00edvne sme ich h\u013eadali na trhu pr\u00e1ce mimo na\u0161u spolo\u010dnos\u0165. Ale mus\u00edme prizna\u0165, \u017ee sme nena\u0161li ani jedn\u00e9ho sp\u013a\u0148aj\u00faceho na\u0161e po\u017eiadavky. Museli sme sa poobzera\u0165 medzi na\u0161imi. <\/p>\n<h2>Probl\u00e9my infra\u0161trukt\u00fary ako k\u00f3du<\/h2>\n<p>\nPo\u010fme sa teraz pozrie\u0165 na pr\u00edklady toho, ako m\u00f4\u017ee by\u0165 infra\u0161trukt\u00fara zak\u00f3dovan\u00e1. K\u00f3d je dobre nap\u00edsan\u00fd, kvalitn\u00fd, s koment\u00e1rmi a odsaden\u00edm. <\/p>\n<p>Pr\u00edklad k\u00f3du z Terraformu.<\/p>\n<p><img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/1a0bbca47e88fb12e97c0f270efba177.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nPr\u00edklad k\u00f3du z Ansible.<\/p>\n<p><img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/358fad8f5944bca1b97b2d6e37b2ee5e.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nP\u00e1ni, ale keby to bolo tak\u00e9 jednoduch\u00e9! Ve\u010f \u017eijeme v re\u00e1lnom svete, ktor\u00fd v\u00e1s v\u017edy dok\u00e1\u017ee prekvapi\u0165, pon\u00faknu\u0165 prek\u00e1\u017eky a probl\u00e9my. Ani tu sa im nevyhneme.<\/p>\n<p><b>1. Prv\u00fd probl\u00e9m spo\u010d\u00edva v tom, \u017ee v\u00e4\u010d\u0161inou je IaC ak\u00fdmsi DSL.<\/b><\/p>\n<p>A DSL je zase popis \u0161trukt\u00fary. Presnej\u0161ie toho, \u010do by ste mali ma\u0165: Json, Yaml, modifik\u00e1cie od nejak\u00fdch ve\u013ek\u00fdch spolo\u010dnost\u00ed, ktor\u00e9 vymysleli svoj DSL (v Terraforme sa pou\u017e\u00edva HCL). <\/p>\n<p>Probl\u00e9m je, \u017ee v \u0148om m\u00f4\u017eu \u013eahko ch\u00fdba\u0165 tak\u00e9 n\u00e1m zn\u00e1me veci ako:<\/p>\n<ul>\n<li>premenn\u00e9;<\/li>\n<li>podmienky;<\/li>\n<li>niekde ch\u00fdbaj\u00fa koment\u00e1re, napr\u00edklad v Json, pre ne je predvolene nepripraven\u00fd;<\/li>\n<li>funkcie;<\/li>\n<li>a to e\u0161te nehovor\u00edm o tak\u00fdch vysoko\u00farov\u0148ov\u00fdch veciach, ako s\u00fa triedy, dedenie a podobne.<\/li>\n<\/ul>\n<p>\n <b>2. Druh\u00fd probl\u00e9m tak\u00e9hoto k\u00f3du je, \u017ee v\u00e4\u010d\u0161inou ide o heterog\u00e9nne prostredie.<\/b>Zvy\u010dajne sed\u00edte a pracujete s C#, teda s jedn\u00fdm jazykom, jedn\u00fdm stackom, jednou ekosyst\u00e9mou. A tu m\u00e1te obrovsk\u00e9 mno\u017estvo technol\u00f3gi\u00ed. <\/p>\n<p>Celkom re\u00e1lna situ\u00e1cia, ke\u010f bash s Pythonom sp\u00fa\u0161\u0165a nejak\u00fd proces, do ktor\u00e9ho sa podstr\u010d\u00ed Json. Analyzujete ho, potom nejak\u00fd gener\u00e1tor vyprodukuje \u010fal\u0161\u00edch 30 s\u00faborov. Pre toto v\u0161etko prich\u00e1dzaj\u00fa vstupn\u00e9 premenn\u00e9 z Azure Key Vault, ktor\u00e9 s\u00fa stiahnut\u00e9 pluginom k drone.io nap\u00edsan\u00fdm v Go, a tieto premenn\u00e9 prech\u00e1dzaj\u00fa cez yaml, ktor\u00fd vznikol generovan\u00edm z \u0161abl\u00f3nova\u010da jsonnet. Pomerne zlo\u017eit\u00e9 ma\u0165 pr\u00edsne dobre pop\u00edsan\u00fd k\u00f3d, ke\u010f m\u00e1te tak pestr\u00e9 prostredie. <\/p>\n<p>Tradi\u010dn\u00fd v\u00fdvoj v r\u00e1mci jednej \u00falohy prebieha s jedn\u00fdm jazykom. Tu v\u0161ak pracujeme s ve\u013ek\u00fdm mno\u017estvom jazykov. <\/p>\n<p><b>3. Tret\u00ed probl\u00e9m \u2013 to je tooling<\/b>. Sme zvyknut\u00ed na skvel\u00e9 editory (Ms Visual Studio, Jetbrains Rider), ktor\u00e9 v\u0161etko robia za n\u00e1s. A aj ke\u010f zlyh\u00e1me, povedia n\u00e1m, \u017ee nie sme pravdu. Zd\u00e1 sa, \u017ee je to norm\u00e1lne a prirodzen\u00e9. <\/p>\n<p>Ale niekde je VSCode, v ktorom s\u00fa nejak\u00e9 pluginy, ktor\u00e9 sa nejako in\u0161taluj\u00fa, podporuj\u00fa alebo nepodporuj\u00fa. Vy\u0161li nov\u00e9 verzie, a tie neboli podporovan\u00e9. Ban\u00e1lny prechod k implement\u00e1cii funkcie (aj ke\u010f je) sa st\u00e1va zlo\u017eit\u00fdm a netrivi\u00e1lnym probl\u00e9mom. Jednoduch\u00e9 premenovanie premennej je nahradenie v projekte z desiatich s\u00faborov. Bude \u0161\u0165ast\u00edm, ak to bude to, \u010do je potrebn\u00e9 nahradi\u0165. Samozrejme, niekde je zv\u00fdraznenie, je auto-doplnenie, niekde je form\u00e1tovanie (pravda, u m\u0148a v terraform na Windows sa to nespustilo). <\/p>\n<p>V \u010dase p\u00edsania \u010dl\u00e1nku <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/mauve\/vscode-terraform\">vscode-terraform plugin<\/a><\/noindex> e\u0161te nevydali na podporu verzie 0.12, hoci je u\u017e vydan\u00e1 3 mesiace.<\/p>\n<h2>Pri\u0161iel \u010das zabudn\u00fa\u0165 na&#8230;<\/h2>\n<p><\/p>\n<ol>\n<li>Ladenie.<\/li>\n<li>N\u00e1stroj na refaktoring.<\/li>\n<li>Automatick\u00e9 doplnenie.<\/li>\n<li>Odha\u013eovanie ch\u00fdb pri kompil\u00e1cii.<\/li>\n<\/ol>\n<p>\nJe to smie\u0161ne, ale to predl\u017euje \u010das na v\u00fdvoj a zvy\u0161uje po\u010det ch\u00fdb, ktor\u00e9 nevyhnutne vznikaj\u00fa. <\/p>\n<p>Najstra\u0161nej\u0161ie je, \u017ee sme n\u00faten\u00ed myslie\u0165 nie na to, ako navrhn\u00fa\u0165, rozdeli\u0165 s\u00fabory do prie\u010dinkov, dekomponova\u0165, urobi\u0165 k\u00f3d udr\u017eiavate\u013en\u00fdm, \u010ditate\u013en\u00fdm a tak \u010falej, ale na to, ako spr\u00e1vne nap\u00edsa\u0165 tento pr\u00edkaz, preto\u017ee som ho nap\u00edsal nespr\u00e1vne. <\/p>\n<p>Ako nov\u00e1\u010dik sa pok\u00fa\u0161ate pochopi\u0165 terraform, a IDE v\u00e1m v tom v\u00f4bec nepom\u00e1ha. Ke\u010f je dokument\u00e1cia \u2013 vojdem, pozriem. Ale keby ste sa dost\u00e1vali do nov\u00e9ho programovacieho jazyka, IDE by nazna\u010dila, \u017ee tak\u00fdto typ existuje, a tak\u00fd nie. Aspo\u0148 na \u00farovni int alebo string. To je \u010dasto u\u017eito\u010dn\u00e9. <\/p>\n<h2>A \u010do testy?<\/h2>\n<p>\nP\u00fdtate sa: \u201eAko to je s testami, p\u00e1ni program\u00e1tori?\u201c Seri\u00f3zni chlapci testuj\u00fa v\u0161etko na produkcii, a to je tvrd\u00e9. Tu je pr\u00edklad jednotkov\u00e9ho testu pre terraform modul z webovej str\u00e1nky. <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.microsoft.com\/ru-ru\/azure\/terraform\/terratest-in-terraform-modules\">Microsoft<\/a><\/noindex>. <\/p>\n<p><img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/b9391409941e14f7e3cf6f8d964a2668.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nMaj\u00fa dobr\u00fa dokument\u00e1ciu. Microsoft sa mi v\u017edy p\u00e1\u010dil svoj\u00edm pr\u00edstupom k dokument\u00e1cii a vzdel\u00e1vaniu. Ale netreba by\u0165 str\u00fdkom Bobom, aby ste pochopili, \u017ee tu nie je ide\u00e1lny k\u00f3d. V\u0161imnite si valid\u00e1ciu presunut\u00fa doprava. <\/p>\n<p>Probl\u00e9m jednotkov\u00e9ho testu je ten, \u017ee m\u00f4\u017eeme overi\u0165 spr\u00e1vnos\u0165 JSONu na v\u00fdstupe. Dal som 5 parametrov a dostal som v\u00fdstup JSON s 2000 riadkami. M\u00f4\u017eem analyzova\u0165, \u010do sa tu deje, overi\u0165 v\u00fdsledok testu... <\/p>\n<p>Je \u0165a\u017ek\u00e9 analyzova\u0165 JSON v Go. Ale treba p\u00edsa\u0165 v Go, preto\u017ee terraform v Go \u2013 to je dobr\u00e1 prax, pri ktorej testujete v tom jazyku, v ktorom p\u00ed\u0161ete. Samo o sebe je organiz\u00e1cia k\u00f3du ve\u013emi slab\u00e1. A pritom \u2013 to je najlep\u0161ia kni\u017enica na testovanie. <\/p>\n<p>S\u00e1m Microsoft p\u00ed\u0161e svoje moduly a testuje ich t\u00fdmto sp\u00f4sobom. Samozrejme, je to Open Source. V\u0161etko, o \u010dom hovor\u00edm, m\u00f4\u017eete pr\u00eds\u0165 a opravi\u0165. M\u00f4\u017eem si sadn\u00fa\u0165 a za t\u00fd\u017ede\u0148 v\u0161etko opravi\u0165, open-source pluginy VS-k\u00f3du, terraform, vytvori\u0165 plugin pre Rider. Mo\u017eno nap\u00edsa\u0165 p\u00e1r analyz\u00e1torov, pripoji\u0165 linters, prispie\u0165 do kni\u017enice na testovanie. V\u0161etko m\u00f4\u017eem urobi\u0165. Ale t\u00fdm sa nem\u00e1m zaobera\u0165. <\/p>\n<h2>Najlep\u0161ie praktiky Infrastructure as code.<\/h2>\n<p>\nIdeme \u010falej. Ak v IaC nie s\u00fa testy, zle s IDE a toolingom, aspo\u0148 by mali by\u0165 najlep\u0161ie praktiky. Jednoducho som \u0161iel do Google Analytics a porovnal dve vyh\u013ead\u00e1vacie dotazy: Terraform best practices a C# best practices. <\/p>\n<p><img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/3d0e8cd626596deea99324285321a0ab.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n\u010co vid\u00edme? Bezoh\u013eadn\u00e1 \u0161tatistika nie v n\u00e1\u0161 prospech. \u010co sa t\u00fdka mno\u017estva materi\u00e1lu \u2013 rovnak\u00e9. V C# v\u00fdvoji sa jednoducho k\u00fapeme v materi\u00e1loch, m\u00e1me nadpriemern\u00e9 praktiky, s\u00fa knihy nap\u00edsan\u00e9 expertmi, a tie\u017e knihy, ktor\u00e9 nap\u00edsali in\u00ed experti, ktor\u00ed kritizuj\u00fa tie knihy. Mno\u017estvo ofici\u00e1lnej dokument\u00e1cie, \u010dl\u00e1nkov, vzdel\u00e1vac\u00edch kurzov, teraz e\u0161te aj open source v\u00fdvoj.<\/p>\n<p>\u010co sa t\u00fdka dotazu na IaC: tu sa sna\u017e\u00edte zozbiera\u0165 inform\u00e1cie z prezent\u00e1ci\u00ed vysok\u00e9ho za\u0165a\u017eenia alebo HashiConf, z ofici\u00e1lnej dokument\u00e1cie a po\u010detn\u00fdch issue na GitHub. Ako vlastne rozmiestni\u0165 tieto moduly, \u010do s nimi robi\u0165? Zd\u00e1 sa, \u017ee je to skuto\u010dn\u00fd probl\u00e9m... Existuje predsa komunita, p\u00e1ni, kde na ak\u00fako\u013evek ot\u00e1zku v\u00e1m daj\u00fa 10 koment\u00e1rov na GitHub. Ale to nie je ist\u00e9. <\/p>\n<p>Bohu\u017eia\u013e, v s\u00fa\u010dasnosti sa experti iba za\u010d\u00ednaj\u00fa objavova\u0165. Doteraz ich je pr\u00edli\u0161 m\u00e1lo. A samotn\u00e9 komunity s\u00fa e\u0161te vo f\u00e1ze za\u010diatku. <\/p>\n<h2>Kam to v\u0161etko smeruje a \u010do robi\u0165<\/h2>\n<p>\nM\u00f4\u017eete v\u0161etko necha\u0165 a vr\u00e1ti\u0165 sa sp\u00e4\u0165 k C#, do sveta jazdca. Ale nie. Pre\u010do by ste sa v\u00f4bec mali zapodieva\u0165 t\u00fdmto, ak nie aby ste na\u0161li rie\u0161enie. Ni\u017e\u0161ie uv\u00e1dzam svoje subjekt\u00edvne z\u00e1very. M\u00f4\u017eete so mnou polemizova\u0165 v koment\u00e1roch, bude to zauj\u00edmav\u00e9. <\/p>\n<p>Osobne sa prikl\u00e1\u0148am k nieko\u013ek\u00fdm ot\u00e1zkam:<\/p>\n<ol>\n<li>Rozvoj v tejto oblasti sa deje ve\u013emi r\u00fdchlo. Uv\u00e1dzam graf dopytu po DevOps.\n<p><img decoding=\"async\" alt=\"Infrastructure as code: prv\u00e9 zozn\u00e1menie\" src=\"\/wp-content\/uploads\/2019\/08\/068276f040f17c84a4c7eb9e11703c5c.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nMo\u017eno je to hype t\u00e9ma, ale samotn\u00fd fakt, \u017ee oblast rastie, vn\u00e1\u0161a ur\u010dit\u00fa n\u00e1dej. <\/p>\n<p>Ak nie\u010do rastie tak r\u00fdchlo, ur\u010dite sa objavia inteligentn\u00ed \u013eudia, ktor\u00ed povedia, ako to robi\u0165 a ako nie. N\u00e1rast popularity vedie k tomu, \u017ee mo\u017eno niekto kone\u010dne n\u00e1jde \u010das doplni\u0165 plugin k jsonnet pre vscode, ktor\u00fd umo\u017en\u00ed prech\u00e1dza\u0165 k implement\u00e1cii funkcie, namiesto aby ju h\u013eadali cez ctrl+shift+f. Ke\u010f sa v\u0161etko vyv\u00edja, objavuje sa viac materi\u00e1lov. Rovnak\u00fd pr\u00edklad je vydanie knihy od Google o SRE.<\/li>\n<li>Existuj\u00fa vyvinut\u00e9 met\u00f3dy a praktiky v be\u017enom v\u00fdvoji, ktor\u00e9 m\u00f4\u017eeme \u00faspe\u0161ne aplikova\u0165 aj tu. \u00c1no, s\u00fa tu nuansy s testovan\u00edm a heterog\u00e9nnym prostred\u00edm, nedostato\u010dn\u00e9 n\u00e1stroje, ale nahromadilo sa obrovsk\u00e9 mno\u017estvo prakt\u00edk, ktor\u00e9 m\u00f4\u017eu by\u0165 u\u017eito\u010dn\u00e9 a pom\u00f4c\u0165.\n<p>Ban\u00e1lny pr\u00edklad: spolupr\u00e1ca cez pair programming. Ve\u013emi pom\u00e1ha porozumie\u0165. Ke\u010f m\u00e1te ved\u013ea seba kolegu, ktor\u00fd tie\u017e nie\u010do sa sna\u017e\u00ed pochopi\u0165, spolu porozumiete lep\u0161ie.<\/p>\n<p> Porozumenie tomu, ako sa rob\u00ed refaktoring, pom\u00e1ha aj v takejto situ\u00e1cii ho vykon\u00e1va\u0165. Teda m\u00f4\u017eete zmeni\u0165 nie v\u0161etko naraz, ale zmeni\u0165 pomenovanie, potom zmeni\u0165 umiestnenie, potom m\u00f4\u017ee vy\u010dleni\u0165 nejak\u00fa \u010das\u0165, och, a tu ch\u00fdbaj\u00fa koment\u00e1re. <\/li>\n<\/ol>\n<p><\/p>\n<h2>Z\u00e1ver<\/h2>\n<p>\nNapriek tomu, \u017ee moje \u00favahy sa m\u00f4\u017eu zda\u0165 pesimistick\u00e9, s n\u00e1dejou pozer\u00e1m do bud\u00facnosti a \u00faprimne d\u00fafam, \u017ee sa n\u00e1m (a v\u00e1m) v\u0161etk\u00fdm podar\u00ed.<\/p>\n<blockquote><p>Nasleduje druh\u00e1 \u010das\u0165 \u010dl\u00e1nku. V nej poviem, ako sme sa pok\u00fasili aplikova\u0165 praktiky agiln\u00e9ho v\u00fdvoja, aby sme zlep\u0161ili n\u00e1\u0161 proces u\u010denia a pr\u00e1cu s infra\u0161trukt\u00farou.<\/p><\/blockquote>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dodopizzaio\/blog\/465137\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0423 \u043d\u0430\u0441 \u0432 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 \u0438\u0434\u0451\u0442 \u043f\u0440\u043e\u0446\u0435\u0441\u0441 \u043e\u043d\u0431\u043e\u0440\u0434\u0438\u043d\u0433\u0430 SRE-\u043a\u043e\u043c\u0430\u043d\u0434\u044b. \u042f \u0437\u0430\u0448\u0451\u043b \u0432\u043e \u0432\u0441\u044e \u044d\u0442\u0443 \u0438\u0441\u0442\u043e\u0440\u0438\u044e \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438. \u0412 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u0443 \u043c\u0435\u043d\u044f \u043f\u043e\u044f\u0432\u0438\u043b\u0438\u0441\u044c \u043c\u044b\u0441\u043b\u0438 \u0438 \u0438\u043d\u0441\u0430\u0439\u0442\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u044f \u0445\u043e\u0447\u0443 \u043f\u043e\u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435-\u0440\u0430\u0437\u043c\u044b\u0448\u043b\u0435\u043d\u0438\u0438 \u044f \u0433\u043e\u0432\u043e\u0440\u044e \u043e \u0442\u043e\u043c, \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442, \u043a\u0430\u043a \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442, \u0438 \u043a\u0430\u043a \u0432\u0441\u0435\u043c \u0434\u0430\u043b\u044c\u0448\u0435 \u0441 \u044d\u0442\u0438\u043c \u0436\u0438\u0442\u044c. \u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u0435\u0440\u0438\u0438 \u0441\u0442\u0430\u0442\u0435\u0439, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043f\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28211,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-37586","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 - 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Po\u010das toho som mal my\u0161lienky a postrehy, ktor\u00e9 chcem zdie\u013ea\u0165 s ostatn\u00fdmi v\u00fdvoj\u00e1rmi.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/infrastructure-as-code-pervoe-znakomstvo","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","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\udd47Infrastructure as code: \u043f\u0435\u0440\u0432\u043e\u0435 \u0437\u043d\u0430\u043a\u043e\u043c\u0441\u0442\u0432\u043e | ProHoster","og:description":"\u0423 \u043d\u0430\u0441 \u0432 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 \u0438\u0434\u0451\u0442 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