{"id":37475,"date":"2019-10-31T22:17:51","date_gmt":"2019-10-31T19:17:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes\/"},"modified":"2019-10-31T22:17:51","modified_gmt":"2019-10-31T19:17:51","slug":"instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes","title":{"rendered":"N\u00e1stroje pro v\u00fdvoj\u00e1\u0159e aplikac\u00ed b\u011b\u017e\u00edc\u00edch v Kubernetes","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"N\u00e1stroje pro v\u00fdvoj\u00e1\u0159e aplikac\u00ed b\u011b\u017e\u00edc\u00edch v Kubernetes\" src=\"\/wp-content\/uploads\/2019\/08\/ad1f46a3562dcefacaa1722ee1ce3387.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nModern\u00ed p\u0159\u00edstup k provozov\u00e1n\u00ed \u0159e\u0161\u00ed \u0159adu nal\u00e9hav\u00fdch probl\u00e9m\u016f podnik\u00e1n\u00ed. Kontejnery a orchestry umo\u017e\u0148uj\u00ed snadno \u0161k\u00e1lovat projekty jak\u00e9koliv slo\u017eitosti, zjednodu\u0161uj\u00ed uvol\u0148ov\u00e1n\u00ed nov\u00fdch verz\u00ed, zvy\u0161uj\u00ed jejich spolehlivost, ale z\u00e1rove\u0148 vytv\u00e1\u0159ej\u00ed dal\u0161\u00ed probl\u00e9my pro v\u00fdvoj\u00e1\u0159e. Program\u00e1tora p\u0159edev\u0161\u00edm zaj\u00edm\u00e1 jeho k\u00f3d: architektura, kvalita, v\u00fdkon, elegance, - a ne to, jak pob\u011b\u017e\u00ed v Kubernetes a jak ho testovat a ladit po i minim\u00e1ln\u00edch \u00faprav\u00e1ch. Proto je velmi p\u0159irozen\u00e9, \u017ee se aktivn\u011b vyv\u00edjej\u00ed n\u00e1stroje pro Kubernetes, kter\u00e9 pom\u00e1haj\u00ed \u0159e\u0161it probl\u00e9my i t\u011bch \u201enejarchaic\u030ct\u011bj\u0161\u00edch\u201c v\u00fdvoj\u00e1\u0159\u016f a umo\u017e\u0148uj\u00ed jim soust\u0159edit se na to hlavn\u00ed.<\/p>\n<p>Tato recenze p\u0159in\u00e1\u0161\u00ed stru\u010dn\u00e9 informace o n\u011bkter\u00fdch n\u00e1stroj\u00edch, kter\u00e9 usnad\u0148uj\u00ed \u017eivot program\u00e1torovi, jeho\u017e k\u00f3d b\u011b\u017e\u00ed v podch Kubernetes klastru.<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Jednoduch\u00e9 pomocn\u00edky<\/h2>\n<p><\/p>\n<h3>Kubectl-debug<\/h3>\n<p><\/p>\n<ul>\n<li> Podstata: <b>p\u0159idej sv\u016fj kontejner do Podu a zjisti, co se v n\u011bm d\u011bje<\/b>.<\/li>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/aylei\/kubectl-debug\">GitHub<\/a><\/noindex>.<\/li>\n<li> Stru\u010dn\u00e1 statistika GH: 715 hv\u011bzd, 54 commit\u016f, 9 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: Go.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\nTento plugin pro kubectl umo\u017e\u0148uje vytvo\u0159it uvnit\u0159 vybran\u00e9ho podu dal\u0161\u00ed kontejner, kter\u00fd bude sd\u00edlet jmenn\u00fd prostor proces\u016f s ostatn\u00edmi kontejnery. V n\u011bm lze prov\u00e1d\u011bt odlad\u011bn\u00ed pr\u00e1ce podu: zkontrolovat funk\u010dnost s\u00edt\u011b, naslouchat s\u00ed\u0165ov\u00e9mu provozu, prov\u00e9st strace zaj\u00edmav\u00e9ho procesu atd.<\/p>\n<p>Tak\u00e9 se lze p\u0159epnout do kontejneru procesu, proveden\u00edm <code>chroot \/proc\/PID\/root<\/code> - to m\u016f\u017ee b\u00fdt velmi u\u017eite\u010dn\u00e9, kdy\u017e je pot\u0159eba z\u00edskat root shell v kontejneru, pro kter\u00fd je v manifestu nastaveno <code>securityContext.runAs<\/code>.<\/p>\n<p>N\u00e1stroj je jednoduch\u00fd a efektivn\u00ed, tak\u017ee se m\u016f\u017ee hodit ka\u017ed\u00e9mu v\u00fdvoj\u00e1\u0159i. V\u00edce o n\u011bm jsme psali v <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/436112\/\">samostatn\u00e9m \u010dl\u00e1nku<\/a><\/noindex>.<\/p>\n<h3>Telepresence<\/h3>\n<p><\/p>\n<ul>\n<li> Podstata: <b>p\u0159en\u00e9st aplikaci na sv\u016fj po\u010d\u00edta\u010d. Vyv\u00edjejte a lad\u011bte lok\u00e1ln\u011b<\/b>.<\/li>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.telepresence.io\/\">Web<\/a><\/noindex>; <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/telepresenceio\/telepresence\">GitHub<\/a><\/noindex>.<\/li>\n<li> Stru\u010dn\u00e1 statistika GH: 2131 hv\u011bzda, 2712 commit\u016f, 33 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: Python.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\nMy\u0161lenka t\u00e9to komponenty spo\u010d\u00edv\u00e1 v spu\u0161t\u011bn\u00ed kontejneru s aplikac\u00ed na lok\u00e1ln\u00edm u\u017eivatelsk\u00e9m po\u010d\u00edta\u010di a proch\u00e1zen\u00ed ve\u0161ker\u00e9ho provozu z klastru do n\u011bj a zp\u011bt. Tento p\u0159\u00edstup umo\u017e\u0148uje v\u00fdvoj lok\u00e1ln\u011b, jednodu\u0161e m\u011bn\u00edc\u00ed soubory ve sv\u00e9 obl\u00edben\u00e9 IDE: v\u00fdsledky budou okam\u017eit\u011b dostupn\u00e9.<\/p>\n<p>V\u00fdhody m\u00edstn\u00edho spu\u0161t\u011bn\u00ed zahrnuj\u00ed pohodln\u00e9 \u00fapravy a okam\u017eit\u00fd v\u00fdsledek, mo\u017enost ladit aplikaci obvykl\u00fdm zp\u016fsobem. Mezi nev\u00fdhody pat\u0159\u00ed n\u00e1roky na rychlost p\u0159ipojen\u00ed, co\u017e je obzvl\u00e1\u0161\u0165 patrn\u00e9 p\u0159i pr\u00e1ci s aplikac\u00ed s dostate\u010dn\u011b vysok\u00fdm RPS a provozem. Krom\u011b toho m\u00e1 Telepresence probl\u00e9my s volume mounts ve Windows, co\u017e m\u016f\u017ee b\u00fdt rozhoduj\u00edc\u00edm omezen\u00edm pro v\u00fdvoj\u00e1\u0159e zvykl\u00e9 na tento opera\u010dn\u00ed syst\u00e9m.<\/p>\n<p>Ji\u017e jsme se pod\u011blili o na\u0161e zku\u0161enosti s pou\u017e\u00edv\u00e1n\u00edm Telepresence <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/446788\/\">zde<\/a><\/noindex>.<\/p>\n<h3>Ksync<\/h3>\n<p><\/p>\n<ul>\n<li> Podstata: <b>t\u00e9m\u011b\u0159 okam\u017eit\u00e1 synchronizace k\u00f3du s kontejnerem v klastru<\/b>.<\/li>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/vapor-ware\/ksync\">GitHub<\/a><\/noindex>.<\/li>\n<li> Kr\u00e1tk\u00e1 statistika GH: 555 hv\u011bzd, 362 commit\u016f, 11 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: Go.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\nN\u00e1stroj umo\u017e\u0148uje synchronizovat obsah m\u00edstn\u00edho adres\u00e1\u0159e s adres\u00e1\u0159em kontejneru b\u011b\u017e\u00edc\u00edho v klastru. Takov\u00fd n\u00e1stroj se skv\u011ble hod\u00ed pro v\u00fdvoj\u00e1\u0159e v skriptovac\u00edch programovac\u00edch jazyc\u00edch, jejich\u017e hlavn\u00ed probl\u00e9m spo\u010d\u00edv\u00e1 v doru\u010den\u00ed k\u00f3du do b\u011b\u017e\u00edc\u00edho kontejneru. Ksync m\u00e1 za c\u00edl tuto bolest hlavy odstranit.<\/p>\n<p>P\u0159i jednor\u00e1zov\u00e9 inicializaci p\u0159\u00edkazem <code>ksync init<\/code> se v klastru vytvo\u0159\u00ed DaemonSet, kter\u00fd se pou\u017e\u00edv\u00e1 k sledov\u00e1n\u00ed stavu souborov\u00e9ho syst\u00e9mu vybran\u00e9ho kontejneru. Na sv\u00e9m m\u00edstn\u00edm po\u010d\u00edta\u010di v\u00fdvoj\u00e1\u0159 spust\u00ed p\u0159\u00edkaz <code>ksync watch<\/code>, kter\u00fd sleduje konfigurace a spou\u0161t\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/syncthing.net\/\">syncthing<\/a><\/noindex>, prov\u00e1d\u011bj\u00edc\u00ed p\u0159\u00edmou synchronizaci soubor\u016f s klastrem.<\/p>\n<p>Zb\u00fdv\u00e1 instruovat ksync, co a s \u010d\u00edm synchronizovat. Nap\u0159\u00edklad p\u0159\u00edkaz:<\/p>\n<pre><code class=\"plaintext\">ksync create --name=myproject --namespace=test --selector=app=backend --container=php --reload=false \/home\/user\/myproject\/ \/var\/www\/myproject\/<\/code><\/pre>\n<p>\n\u2026 vytvo\u0159\u00ed watcher s n\u00e1zvem <code>myproject<\/code>, kter\u00fd bude hledat pod s \u0161t\u00edtkem <code>app=backend<\/code> a pokus\u00ed se synchronizovat m\u00edstn\u00ed adres\u00e1\u0159 <code>\/home\/user\/myproject\/<\/code> s adres\u00e1\u0159em <code>\/var\/www\/myproject\/<\/code> u kontejneru s n\u00e1zvem <code>php<\/code>.<\/p>\n<p>Probl\u00e9my a pozn\u00e1mky k ksync z na\u0161\u00ed praxe:<\/p>\n<ul>\n<li> Na uzlech Kubernetes klastru by m\u011bl b\u00fdt pou\u017eit <code>overlay2<\/code> jako storage driver pro Docker. S \u017e\u00e1dn\u00fdm jin\u00fdm n\u00e1strojem nebude fungovat.<\/li>\n<li> P\u0159i pou\u017e\u00edv\u00e1n\u00ed Windows jako opera\u010dn\u00edho syst\u00e9mu klienta m\u016f\u017ee doch\u00e1zet k nespr\u00e1vn\u00e9 funkci watcheru souborov\u00e9ho syst\u00e9mu. Tento bug byl zaznamen\u00e1n p\u0159i pr\u00e1ci s rozs\u00e1hl\u00fdmi adres\u00e1\u0159i \u2014 s velk\u00fdm po\u010dtem vlo\u017een\u00fdch soubor\u016f a adres\u00e1\u0159\u016f. Vytvo\u0159ili jsme <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/syncthing\/syncthing\/issues\/5832\">odpov\u00eddaj\u00edc\u00ed issue<\/a><\/noindex> v projektu syncthing, ale od t\u00e9 doby (po\u010d\u00e1tku \u010dervence) nen\u00ed \u017e\u00e1dn\u00fd pokrok.<\/li>\n<li> Pou\u017eijte soubor <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.syncthing.net\/users\/ignoring.html\"><code>.stignore<\/code><\/a><\/noindex> Abyste ur\u010dili cesty nebo \u0161ablony soubor\u016f, kter\u00e9 se nemaj\u00ed synchronizovat (nap\u0159\u00edklad adres\u00e1\u0159e <code>app\/cache<\/code> a <code>.git<\/code>).<\/li>\n<li> Ve v\u00fdchoz\u00edm nastaven\u00ed ksync restartuje kontejner p\u0159i ka\u017ed\u00e9 zm\u011bn\u011b soubor\u016f. Pro Node.js je to u\u017eite\u010dn\u00e9, ale pro PHP zcela nadbyte\u010dn\u00e9. Rad\u011bji vypn\u011bte opcache a pou\u017eijte p\u0159ep\u00edna\u010d <code>--reload=false<\/code>.<\/li>\n<li> Konfiguraci lze v\u017edy upravit v <code>$HOME\/.ksync\/ksync.yaml<\/code>.<\/li>\n<\/ul>\n<p><\/p>\n<h3>Squash<\/h3>\n<p><\/p>\n<ul>\n<li> Podstata: <b>ladit procesy p\u0159\u00edmo v clusteru<\/b>.<\/li>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/solo-io\/squash\">GitHub<\/a><\/noindex>.<\/li>\n<li> Kr\u00e1tk\u00e1 statistika GH: 1154 hv\u011bzd, 279 commit\u016f, 23 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: Go.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\nTento n\u00e1stroj je ur\u010den pro lad\u011bn\u00ed proces\u016f p\u0159\u00edmo v podech. N\u00e1stroj je jednoduch\u00fd a v interaktivn\u00edm re\u017eimu umo\u017e\u0148uje vybrat pot\u0159ebn\u00fd ladic\u00ed program. <i>(viz n\u00ed\u017ee)<\/i> a namespace + pod, do kter\u00e9ho je t\u0159eba zas\u00e1hnout. V sou\u010dasn\u00e9 dob\u011b se podporuj\u00ed:<\/p>\n<ul>\n<li> delve - pro aplikace v Go;<\/li>\n<li> GDB - p\u0159es target remote + port forwarding;<\/li>\n<li> port forwarding JDWP pro lad\u011bn\u00ed Java aplikac\u00ed.<\/li>\n<\/ul>\n<p>\nZ pohledu IDE je podporov\u00e1na pouze ve VScode (pomoc\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/marketplace.visualstudio.com\/items?itemName=ilevine.squash\">roz\u0161\u00ed\u0159en\u00ed<\/a><\/noindex>), av\u0161ak v pl\u00e1nech na aktu\u00e1ln\u00ed (2019) rok jsou Eclipse a Intellij.<\/p>\n<p>Pro lad\u011bn\u00ed proces\u016f Squash spou\u0161t\u00ed na uzlech clustera privilegovan\u00fd kontejner, proto je nejprve t\u0159eba se sezn\u00e1mit s mo\u017enostmi <noindex><a rel=\"nofollow\" href=\"https:\/\/squash.solo.io\/secure_mode\/\">bezpe\u010dnostn\u00edho re\u017eimu<\/a><\/noindex> aby se p\u0159ede\u0161lo probl\u00e9m\u016fm se zabezpe\u010den\u00edm.<\/p>\n<h2>Komplexn\u00ed \u0159e\u0161en\u00ed<\/h2>\n<p>\nP\u0159ejdeme k t\u011b\u017ek\u00e9 artilerii - na v\u011bt\u0161\u00ed \"\u0161k\u00e1lovateln\u00e9\" projekty, kter\u00e9 maj\u00ed okam\u017eit\u011b vy\u0159e\u0161it mnoho pot\u0159eb v\u00fdvoj\u00e1\u0159\u016f.<\/p>\n<p><i><b>NB<\/b>: V tomto seznamu m\u00e1 bezesporu sv\u00e9 m\u00edsto i na\u0161e Open Source utility <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/333682\/\"><b>werf<\/b><\/a><\/noindex> (d\u0159\u00edve zn\u00e1m\u00e9 jako dapp). Nicm\u00e9n\u011b jsme o n\u00ed ji\u017e n\u011bkolikr\u00e1t psali a hovo\u0159ili, proto jsme se rozhodli ji do p\u0159ehledu nezahrnout. Pro ty, kte\u0159\u00ed se cht\u011bj\u00ed s jej\u00edmi mo\u017enostmi bl\u00ed\u017ee sezn\u00e1mit, doporu\u010dujeme p\u0159e\u010d\u00edst\/sly\u0161et p\u0159edn\u00e1\u0161ku \"<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/460351\/\">werf - n\u00e1\u0161 n\u00e1stroj pro CI\/CD v Kubernetes<\/a><\/noindex>\u00bb.<\/i><\/p>\n<h3>DevSpace<\/h3>\n<p><\/p>\n<ul>\n<li> Podstata: <b>pro ty, kte\u0159\u00ed cht\u011bj\u00ed za\u010d\u00edt pracovat v Kubernetes, ale necht\u011bj\u00ed se pono\u0159it do jeho hlubin<\/b>.<\/li>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/devspace-cloud\/devspace\">GitHub<\/a><\/noindex>.<\/li>\n<li> Kr\u00e1tk\u00e1 statistika GH: 630 hv\u011bzd, 1912 commit\u016f, 13 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: Go.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\n\u0158e\u0161en\u00ed od stejnojmenn\u00e9 spole\u010dnosti, kter\u00e1 poskytuje spravovan\u00e9 clustery s Kubernetes pro t\u00fdmov\u00fd v\u00fdvoj. Utility byla vytvo\u0159ena pro komer\u010dn\u00ed clustery, ale skv\u011ble funguje i s jak\u00fdmikoli jin\u00fdmi.<\/p>\n<p>P\u0159i spu\u0161t\u011bn\u00ed p\u0159\u00edkazu <code>devspace init<\/code> v adres\u00e1\u0159i s projektem budete vyzv\u00e1ni (v interaktivn\u00edm re\u017eimu):<\/p>\n<ul>\n<li> vybrat pracovn\u00ed Kubernetes cluster,<\/li>\n<li> pou\u017e\u00edt existuj\u00edc\u00ed <code>Dockerfile<\/code> (nebo vygenerovat nov\u00fd) pro vytvo\u0159en\u00ed kontejneru na jeho z\u00e1klad\u011b,<\/li>\n<li> vybrat repozit\u00e1\u0159 pro ulo\u017een\u00ed obraz\u016f kontejner\u016f atd.<\/li>\n<\/ul>\n<p>\nPo v\u0161ech t\u011bchto p\u0159\u00edpravn\u00fdch kroc\u00edch m\u016f\u017eete za\u010d\u00edt v\u00fdvoj t\u00edmto p\u0159\u00edkazem <code>devspace dev<\/code>. Ten sestav\u00ed kontejner, nahraje ho do repozit\u00e1\u0159e, nasad\u00ed deployment do clusteru a spust\u00ed p\u0159esm\u011brov\u00e1n\u00ed port\u016f a synchronizaci kontejneru s lok\u00e1ln\u00edm adres\u00e1\u0159em.<\/p>\n<p>Voliteln\u011b v\u00e1m bude nab\u00eddnuto p\u0159epnout se do kontejneru pomoc\u00ed termin\u00e1lu. Nen\u00ed t\u0159eba odm\u00edtat, proto\u017ee ve skute\u010dnosti se kontejner spou\u0161t\u00ed s p\u0159\u00edkazem sleep, a pro skute\u010dn\u00e9 testov\u00e1n\u00ed je pot\u0159eba aplikaci spou\u0161t\u011bt ru\u010dn\u011b.<\/p>\n<p>Nakonec p\u0159\u00edkaz <code>devspace deploy<\/code> nasazuje aplikaci a s n\u00ed spojenou infrastrukturu do clusteru, po \u010dem\u017e v\u0161e za\u010dne fungovat v produk\u010dn\u00edm re\u017eimu.<\/p>\n<p>Ve\u0161ker\u00e9 nastaven\u00ed projektu je ulo\u017eeno v souboru <code>devspace.yaml<\/code>. Krom\u011b nastaven\u00ed prost\u0159ed\u00ed pro v\u00fdvoj v n\u011bm m\u016f\u017eete tak\u00e9 naj\u00edt popis infrastruktury, podobn\u00fd standardn\u00edm manifest\u016fm Kubernetes, av\u0161ak zna\u010dn\u011b zjednodu\u0161en\u00fd.<\/p>\n<p><img decoding=\"async\" alt=\"N\u00e1stroje pro v\u00fdvoj\u00e1\u0159e aplikac\u00ed b\u011b\u017e\u00edc\u00edch v Kubernetes\" src=\"\/wp-content\/uploads\/2019\/08\/7abbba3806facfb69ba4e3f9e0f18938.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Architektura a hlavn\u00ed f\u00e1ze pr\u00e1ce s DevSpace<\/i><\/p>\n<p>Krom\u011b toho je do projektu snadn\u00e9 p\u0159idat p\u0159eddefinovanou komponentu (nap\u0159\u00edklad DB MySQL) nebo Helm chart. V\u00edce informac\u00ed najdete v <noindex><a rel=\"nofollow\" href=\"https:\/\/devspace.cloud\/docs\/\">dokumentaci<\/a><\/noindex> \u2014 je to jednoduch\u00e9.<\/p>\n<h3>Skaffold<\/h3>\n<p><\/p>\n<ul>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/skaffold.dev\/\">Web<\/a><\/noindex>; <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/GoogleContainerTools\/skaffold\">GitHub<\/a><\/noindex>.<\/li>\n<li> Stru\u010dn\u00e1 statistika GH: 7423 hv\u011bzdi\u010dek, 4173 commit\u016f, 136 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: Go.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\nTato utilita od Googlu si klade za c\u00edl pokr\u00fdt v\u0161echny pot\u0159eby v\u00fdvoj\u00e1\u0159e, jeho\u017e k\u00f3d bude n\u011bjak\u00fdm zp\u016fsobem spu\u0161t\u011bn v clusteru Kubernetes. Za\u010d\u00e1tek pou\u017e\u00edv\u00e1n\u00ed nen\u00ed tak jednoduch\u00fd jako u devspace: \u017e\u00e1dn\u00e1 interaktivita, ur\u010den\u00ed jazyka a automatick\u00e9 vytv\u00e1\u0159en\u00ed. <code>Dockerfile<\/code> zde v\u00e1m nebude nab\u00eddnuto.<\/p>\n<p>Nicm\u00e9n\u011b, pokud v\u00e1s to neodrad\u00ed \u2014 zde je, co umo\u017e\u0148uje Skaffold:<\/p>\n<ul>\n<li> Sledovat zm\u011bny v zdrojov\u00e9m k\u00f3du.<\/li>\n<li> Synchronizovat ho s kontejnerem podu, pokud nevy\u017eaduje kompilaci.<\/li>\n<li> Sestavovat kontejnery s k\u00f3dem, pokud je programovac\u00ed jazyk interpretovan\u00fd, nebo kompilovat artefakty a balit je do kontejner\u016f.<\/li>\n<li> V\u00fdsledn\u00e9 obrazy automaticky kontrolovat pomoc\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/GoogleContainerTools\/container-structure-test\">container-structure-test<\/a><\/noindex>.<\/li>\n<li> Tagovat a nahr\u00e1vat obrazy do Docker Registry.<\/li>\n<li> Nasazovat aplikaci v clusteru pomoc\u00ed kubectl, Helm nebo kustomize.<\/li>\n<li> Prov\u00e1d\u011bt p\u0159esm\u011brov\u00e1n\u00ed port\u016f.<\/li>\n<li> Ladit aplikace napsan\u00e9 v Jav\u011b, Node.js, Pythonu.<\/li>\n<\/ul>\n<p>\nWorkflow v r\u016fzn\u00fdch variant\u00e1ch je deklarativn\u011b pops\u00e1n v souboru <code>skaffold.yaml<\/code>. Pro projekt m\u016f\u017eete tak\u00e9 definovat n\u011bkolik profil\u016f, ve kter\u00fdch lze \u010d\u00e1ste\u010dn\u011b nebo \u00fapln\u011b m\u011bnit f\u00e1ze sestaven\u00ed a nasazen\u00ed. Nap\u0159\u00edklad pro v\u00fdvoj m\u016f\u017eete ur\u010dit z\u00e1kladn\u00ed obraz, kter\u00fd je pohodln\u00fd pro v\u00fdvoj\u00e1\u0159e, a pro staging a produkci \u2014 minim\u00e1ln\u00ed (+ pou\u017e\u00edt <code>securityContext<\/code> nebo p\u0159edefinovat klastr, ve kter\u00e9m bude aplikace nasazena).<\/p>\n<p>Sestaven\u00ed Docker kontejner\u016f m\u016f\u017ee prob\u00edhat m\u00edstn\u011b nebo vzd\u00e1len\u011b: v <noindex><a rel=\"nofollow\" href=\"https:\/\/cloud.google.com\/cloud-build\/\">Google Cloud Build<\/a><\/noindex> nebo v klastru pomoc\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/GoogleContainerTools\/kaniko\">Kaniko<\/a><\/noindex>. Tak\u00e9 jsou podporov\u00e1ny Bazel a Jib Maven\/Gradle. Pro tagov\u00e1n\u00ed Skaffold podporuje mnoho strategi\u00ed: podle git commit hashe, data\/\u010das, sha256 sou\u010dtu zdrojov\u00e9ho k\u00f3du atd.<\/p>\n<p>Mimo to stoj\u00ed za zm\u00ednku mo\u017enost testov\u00e1n\u00ed kontejner\u016f. Ji\u017e zm\u00edn\u011bn\u00fd framework container-structure-test nab\u00edz\u00ed n\u00e1sleduj\u00edc\u00ed metody ov\u011b\u0159ov\u00e1n\u00ed:<\/p>\n<ul>\n<li> Vykon\u00e1v\u00e1n\u00ed p\u0159\u00edkaz\u016f v kontextu kontejneru se sledov\u00e1n\u00edm exit status\u016f a kontrolou textov\u00e9ho \u201ev\u00fdstupu\u201c p\u0159\u00edkazu.<\/li>\n<li> Kontrola p\u0159\u00edtomnosti soubor\u016f v kontejneru a jejich atribut\u016f shodn\u00fdch s uveden\u00fdmi.<\/li>\n<li> Kontrola obsahu soubor\u016f na z\u00e1klad\u011b regul\u00e1rn\u00edch v\u00fdraz\u016f.<\/li>\n<li> Ov\u011b\u0159en\u00ed metadat obrazu (<code>ENV<\/code>, <code>ENTRYPOINT<\/code>, <code>VOLUMES<\/code> atd.).<\/li>\n<li> Ov\u011b\u0159en\u00ed souladu licenc\u00ed.<\/li>\n<\/ul>\n<p>\nSynchronizace soubor\u016f s kontejnerem se prov\u00e1d\u00ed ne zcela optim\u00e1ln\u00edm zp\u016fsobem: Skaffold jednodu\u0161e vytvo\u0159\u00ed archiv se zdrojov\u00fdmi k\u00f3dy, zkop\u00edruje jej a rozbal\u00ed v kontejneru (mus\u00ed b\u00fdt nainstalov\u00e1n tar). Proto, pokud je va\u0161\u00edm hlavn\u00edm \u00fakolem synchronizace k\u00f3du, je lep\u0161\u00ed pod\u00edvat se na specializovan\u00e9 \u0159e\u0161en\u00ed (ksync).<\/p>\n<p><img decoding=\"async\" alt=\"N\u00e1stroje pro v\u00fdvoj\u00e1\u0159e aplikac\u00ed b\u011b\u017e\u00edc\u00edch v Kubernetes\" src=\"\/wp-content\/uploads\/2019\/08\/a53647e9d3bf002c292dcae7a774e561.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Hlavn\u00ed etapy pr\u00e1ce Skaffold<\/i><\/p>\n<p>Celkov\u011b v\u0161ak n\u00e1stroj neumo\u017e\u0148uje abstrahovat od Kubernetes manifest\u016f a nem\u00e1 \u017e\u00e1dnou interaktivitu, tak\u017ee se m\u016f\u017ee zd\u00e1t obt\u00ed\u017en\u00e9 se ho nau\u010dit. Ale v tom je i jeho plus \u2014 v\u011bt\u0161\u00ed svoboda jedn\u00e1n\u00ed.<\/p>\n<h3>Garden<\/h3>\n<p><\/p>\n<ul>\n<li> <noindex><a rel=\"nofollow\" href=\"https:\/\/garden.io\/\">Web<\/a><\/noindex>; <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/garden-io\/garden\">GitHub<\/a><\/noindex>.<\/li>\n<li> Kr\u00e1tk\u00e1 statistika GH: 1063 hv\u011bzdi\u010dky, 1927 commit\u016f, 17 p\u0159isp\u011bvatel\u016f.<\/li>\n<li> Jazyk: TypeScript <i>(pl\u00e1nuje se rozd\u011blit projekt na n\u011bkolik komponent, z nich\u017e n\u011bkter\u00e9 budou na Go, a tak\u00e9 vytvo\u0159it SDK pro vytv\u00e1\u0159en\u00ed dopl\u0148k\u016f na TypeScript\/JavaScript a Go)<\/i>.<\/li>\n<li> Licence: Apache License 2.0.<\/li>\n<\/ul>\n<p>\nStejn\u011b jako Skaffold, Garden se zam\u011b\u0159uje na automatizaci proces\u016f dod\u00e1n\u00ed k\u00f3du aplikace do K8s klastru. K tomu je nejprve nutn\u00e9 popsat strukturu projektu v YAML souboru, po \u010dem\u017e spust\u00edte p\u0159\u00edkaz <code>garden dev<\/code>. Ten ud\u011bl\u00e1 v\u0161echno kouzlo:<\/p>\n<ul>\n<li> Sestav\u00ed kontejnery s r\u016fzn\u00fdmi \u010d\u00e1stmi projektu.<\/li>\n<li> Provede integra\u010dn\u00ed a unit testy, pokud byly pops\u00e1ny.<\/li>\n<li> Vyjede v\u0161echny komponenty projektu do cloudu.<\/li>\n<li> V p\u0159\u00edpad\u011b zm\u011bny zdrojov\u00e9ho k\u00f3du - znovu spust\u00ed cel\u00fd pipeline.<\/li>\n<\/ul>\n<p>\nHlavn\u00ed d\u016fraz p\u0159i pou\u017e\u00edv\u00e1n\u00ed tohoto n\u00e1stroje je kladen na spole\u010dn\u00e9 sd\u00edlen\u00ed vzd\u00e1len\u00e9ho clustera t\u00fdmem v\u00fdvoj\u00e1\u0159\u016f. V tomto p\u0159\u00edpad\u011b, pokud u\u017e byly n\u011bjak\u00e9 f\u00e1ze sestaven\u00ed a testov\u00e1n\u00ed provedeny, v\u00fdrazn\u011b to urychl\u00ed cel\u00fd proces, proto\u017ee Garden bude moci vyu\u017e\u00edt vyrovnan\u00e9 v\u00fdsledky.<\/p>\n<p>Modul projektu m\u016f\u017ee b\u00fdt kontejner, Maven kontejner, Helm chart, manifest pro <code>kubectl apply<\/code> nebo dokonce OpenFaaS funkce. P\u0159i\u010dem\u017e jak\u00fdkoli z modul\u016f lze st\u00e1hnout z vzd\u00e1len\u00e9ho Git repozit\u00e1\u0159e. Modul m\u016f\u017ee definovat (nebo nemus\u00ed) slu\u017eby, \u00fakoly a testy. Slu\u017eby a \u00fakoly mohou m\u00edt z\u00e1vislosti, co\u017e umo\u017e\u0148uje ur\u010dit po\u0159ad\u00ed nasazen\u00ed jednotliv\u00fdch slu\u017eeb, organizovat spu\u0161t\u011bn\u00ed \u00faloh a test\u016f.<\/p>\n<p>Garden poskytuje u\u017eivateli kr\u00e1sn\u00fd dashboard (zat\u00edm v <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/garden-io\/garden\/tree\/master\/dashboard\">experiment\u00e1ln\u00edm stavu<\/a><\/noindex>), ve kter\u00e9m se zobrazuje graf projektu: komponenty, po\u0159ad\u00ed sestaven\u00ed, prov\u00e1d\u011bn\u00ed \u00faloh a test\u016f, jejich vazby a z\u00e1vislosti. P\u0159\u00edmo v prohl\u00ed\u017ee\u010di je mo\u017en\u00e9 zkontrolovat i logy v\u0161ech komponent projektu, ov\u011b\u0159it, co vrac\u00ed dan\u00fd komponent p\u0159es HTTP (pokud tedy je pro n\u011bj deklarov\u00e1n ingress resource).<\/p>\n<p><img decoding=\"async\" alt=\"N\u00e1stroje pro v\u00fdvoj\u00e1\u0159e aplikac\u00ed b\u011b\u017e\u00edc\u00edch v Kubernetes\" src=\"\/wp-content\/uploads\/2019\/08\/931b48a306fcce025e4dd8aa51d01552.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Panel pro Garden<\/i><\/p>\n<p>Tento n\u00e1stroj m\u00e1 tak\u00e9 re\u017eim hot-reload, kter\u00fd jednodu\u0161e synchronizuje zm\u011bny skript\u016f s kontejnerem v clusterech, \u010d\u00edm\u017e n\u011bkolikan\u00e1sobn\u011b urychluje proces debugov\u00e1n\u00ed aplikace. Garden m\u00e1 dobrou <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.garden.io\/\">dokumentace<\/a><\/noindex> a slu\u0161nou <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/garden-io\/garden\/tree\/master\/examples\">sadu p\u0159\u00edklad\u016f<\/a><\/noindex>, kter\u00e9 umo\u017e\u0148uj\u00ed rychle se zorientovat a za\u010d\u00edt pou\u017e\u00edvat. Mimochodem, ned\u00e1vno jsme publikovali <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/459586\/\">p\u0159eklad \u010dl\u00e1nku<\/a><\/noindex> od jeho autor\u016f.<\/p>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>\nSamoz\u0159ejm\u011b, \u017ee tento seznam n\u00e1stroj\u016f pro v\u00fdvoj a debugov\u00e1n\u00ed aplikac\u00ed v Kubernetes nen\u00ed vy\u010derp\u00e1vaj\u00edc\u00ed. Existuje mnoho u\u017eite\u010dn\u00fdch a praktick\u00fdch utilit, kter\u00e9 si zaslou\u017e\u00ed, pokud ne samostatn\u00fd \u010dl\u00e1nek, tak minim\u00e1ln\u011b zm\u00ednku. Pod\u011blte se o to, co pou\u017e\u00edv\u00e1te vy, s jak\u00fdmi probl\u00e9my jste se setkali a jak jste je \u0159e\u0161ili!<\/p>\n<h2>P.S.<\/h2>\n<p>\nP\u0159e\u010dt\u011bte si tak\u00e9 n\u00e1\u0161 blog:<\/p>\n<ul>\n<li> \u00ab<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/460351\/\">werf \u2014 n\u00e1\u0161 n\u00e1stroj pro CI\/CD v Kubernetes (p\u0159ehled a video p\u0159edn\u00e1\u0161ky)<\/a><\/noindex>\u00bb;<\/li>\n<li> \u00ab<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/459586\/\">Garden v0.10.0: V\u00e1\u0161 notebook nepot\u0159ebuje Kubernetes<\/a><\/noindex>\u00bb;<\/li>\n<li> \u00ab<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/446788\/\">Kubernetes tipy a triky: o lok\u00e1ln\u00edm v\u00fdvoji a Telepresence<\/a><\/noindex>\u00bb;<\/li>\n<li> \u00ab<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/436112\/\">Plugin kubectl-debug pro lad\u011bn\u00ed v podech Kubernetes.<\/a><\/noindex>\u00bb.<\/li>\n<\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/flant\/blog\/462707\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0434\u0445\u043e\u0434 \u043a \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0440\u0435\u0448\u0430\u0435\u0442 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u043e \u043d\u0430\u0441\u0443\u0449\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0431\u0438\u0437\u043d\u0435\u0441\u0430. \u041a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u044b \u0438 \u043e\u0440\u043a\u0435\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u044b \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043b\u0435\u0433\u043a\u043e \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043f\u0440\u043e\u0435\u043a\u0442\u044b \u043b\u044e\u0431\u043e\u0439 \u0441\u043b\u043e\u0436\u043d\u043e\u0441\u0442\u0438, \u0443\u043f\u0440\u043e\u0449\u0430\u044e\u0442 \u0440\u0435\u043b\u0438\u0437\u044b \u043d\u043e\u0432\u044b\u0445 \u0432\u0435\u0440\u0441\u0438\u0439, \u0434\u0435\u043b\u0430\u044e\u0442 \u0438\u0445 \u0431\u043e\u043b\u0435\u0435 \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u043c\u0438, \u043d\u043e \u0432\u043c\u0435\u0441\u0442\u0435 \u0441 \u0442\u0435\u043c \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u0438 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432. \u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0441\u0442\u0430, \u0432 \u043f\u0435\u0440\u0432\u0443\u044e \u043e\u0447\u0435\u0440\u0435\u0434\u044c, \u0437\u0430\u0431\u043e\u0442\u0438\u0442 \u0435\u0433\u043e \u043a\u043e\u0434: \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0430, \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e, \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u044d\u043b\u0435\u0433\u0430\u043d\u0442\u043d\u043e\u0441\u0442\u044c, \u2014 \u0430 \u043d\u0435 \u0442\u043e, \u043a\u0430\u043a \u043e\u043d \u043f\u043e\u0435\u0434\u0435\u0442 \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28120,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-37475","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=\"\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0434\u0445\u043e\u0434 \u043a.\" \/>\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\/cs\/blog\/administrirovanie\/instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"cs_CZ\" \/>\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\u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u044b \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0445 \u0432 Kubernetes | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0434\u0445\u043e\u0434 \u043a.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes\" \/>\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=\"2019-10-31T19:17:51+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T19:17:51+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\udd47N\u00e1stroje pro v\u00fdvoj\u00e1\u0159e aplikac\u00ed, spu\u0161t\u011bn\u00fdch v Kubernetes | ProHoster","description":"Modern\u00ed p\u0159\u00edstup k.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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\u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u044b \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0445 \u0432 Kubernetes | ProHoster","og:description":"\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0434\u0445\u043e\u0434 \u043a.","og:url":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/instrumenty-dlya-razrabotchikov-prilozhenij-zapuskaemyh-v-kubernetes","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":"2019-10-31T19:17:51+00:00","article:modified_time":"2019-10-31T19:17:51+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"37475","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":"2026-01-23 18:00:22","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 01:26:27","updated":"2026-01-23 18:00:22","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/37475","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=37475"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/37475\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media\/28120"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=37475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=37475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=37475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}