{"id":23587,"date":"2023-01-30T14:46:29","date_gmt":"2023-01-30T13:46:29","guid":{"rendered":"https:\/\/www.websupport.sk\/podpora\/?post_type=ht_kb&#038;p=23587"},"modified":"2023-01-30T14:46:31","modified_gmt":"2023-01-30T13:46:31","slug":"terraform-v-prostredi-vdc-zakladne-informacie-vyhody-a-instalacia","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.sk\/podpora\/kb\/terraform-v-prostredi-vdc-zakladne-informacie-vyhody-a-instalacia\/","title":{"rendered":"Terraform v prostred\u00ed VDC &#8211; z\u00e1kladn\u00e9 inform\u00e1cie, v\u00fdhody a in\u0161tal\u00e1cia"},"content":{"rendered":"\n<p><strong>Terraform<\/strong> je free open source n\u00e1stroj od spolo\u010dnosti <a href=\"https:\/\/www.hashicorp.com\/products\/terraform\">HashiCorp<\/a>, ktor\u00fd dok\u00e1\u017ee automatizova\u0165 nasadenie infra\u0161trukt\u00fary (IaaS), platformy (PaaS) a softv\u00e9ru (SaaS). Ide teda o n\u00e1stroj pon\u00fakaj\u00faci komplexn\u00e9 rie\u0161enie, no na jeho pou\u017eitie nepotrebujeme vedie\u0165 programova\u0165. Sta\u010d\u00ed nap\u00edsa\u0165 konfigura\u010dn\u00fd s\u00fabor v jazyku pre \u013eud\u00ed dobre \u010ditate\u013enom a o ostatn\u00e9 sa u\u017e postar\u00e1 n\u00e1stroj <a href=\"https:\/\/www.terraform.io\/\">Terraform<\/a>.<\/p>\n\n\n\n<p>Spolo\u010dnos\u0165 HashiCorp vydala prv\u00fa verziu n\u00e1stroja Terraform v roku 2014. Vtedy Terraform podporoval iba AWS a DigitalOcean. O dva roky nesk\u00f4r (2016) sa v\u0161ak komunita prispievate\u013eov roz\u0161\u00edrila nato\u013eko, \u017ee do Terraformu pribudla podpora aj v\u0161etk\u00fdch ostatn\u00fdch najv\u00e4\u010d\u0161\u00edch poskytovate\u013eov cloudov\u00fdch slu\u017eieb. V roku 2017 Terraform uzavrel partnerstvo so spolo\u010dnos\u0165ou Microsoft, \u010d\u00edm ofici\u00e1lne vst\u00fapil do komer\u010dnej sf\u00e9ry.<\/p>\n\n\n\n<p><strong>OpenStack<\/strong> je free open source syst\u00e9m, ktor\u00fd od roku 2010 vyv\u00edjala spolo\u010dnos\u0165 <a href=\"https:\/\/www.rackspace.com\/\">Rackspace Hosting<\/a> spolu s <a href=\"https:\/\/www.nasa.gov\/\">NASA<\/a>. Od roku 2012 v\u00fdvoj prevzala neziskov\u00e1 organiz\u00e1cia <em>OpenStack Foundation<\/em>, ktor\u00e1 sa v roku 2018 premenovala na <em>Open Infrastructure Foundation<\/em>. <a href=\"https:\/\/www.openstack.org\/\">OpenStack<\/a> sa nasadzuje v d\u00e1tov\u00fdch centr\u00e1ch sp\u00f4sobom infra\u0161trukt\u00fara ako slu\u017eba (Infrastructure as a Service, IaaS) a riadi tak zdroje ako siete, procesory a \u00falo\u017eisk\u00e1.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"783\" height=\"392\" src=\"https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-783x392.png\" alt=\"\" class=\"wp-image-23593\" srcset=\"https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-783x392.png 783w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-300x150.png 300w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-768x384.png 768w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-50x25.png 50w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-60x30.png 60w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform-100x50.png 100w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/terraform.png 1200w\" sizes=\"auto, (max-width: 783px) 100vw, 783px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Pre\u010do pou\u017ei\u0165 Terraform<\/h2>\n\n\n\n<p>N\u00e1stroj Terraform spolo\u010dnos\u0165 HashiCorp a komunita vyv\u00edjaj\u00fa tak, aby neust\u00e1le obhajovali vysok\u00fa kvalitu. Terraform m\u00e1 predov\u0161etk\u00fdm tieto prednosti:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Nez\u00e1vislos\u0165 na platforme a otvorenos\u0165<\/strong> &#8211; Terraform je rovnako dobre pou\u017eite\u013en\u00fd v r\u00e1mci v\u0161etk\u00fdch ve\u013ek\u00fdch poskytovate\u013eov cloudov\u00fdch rie\u0161en\u00ed, \u010di u\u017e ide o produkty spolo\u010dnost\u00ed ako Google, Amazon, Microsoft alebo Alibaba. Nezab\u00fada sa v\u0161ak ani na otvoren\u00e9 rie\u0161enia ako je syst\u00e9m OpenStack.<\/li>\n\n\n\n<li><strong>Ve\u013ek\u00e1 komunita s komer\u010dnou podporou<\/strong> &#8211; Terraform vyv\u00edja celosvetov\u00e1 po\u010detn\u00e1 komunita, a rovnako spolo\u010dnos\u0165 HashiCorp, ktor\u00e1 v pr\u00edpade potreby poskytuje komer\u010dn\u00fa podporu. Ide teda o n\u00e1stroj, ktor\u00fd m\u00f4\u017ee pou\u017ei\u0165 ktoko\u013evek na t\u00fdch najmen\u0161\u00edch ako aj na najv\u00e4\u010d\u0161\u00edch projektoch.<\/li>\n\n\n\n<li><strong>Neopakujete sa<\/strong> &#8211; Terraform v\u010faka modulom umo\u017e\u0148uje u\u017e raz nap\u00edsan\u00fd k\u00f3d vklada\u0165 na in\u00e9 miesta v in\u00fdch skriptoch. Takto pln\u00ed z\u00e1sady princ\u00edpu DRY (Don&#8217;t Repeat Yourself = neopakuj sa), ktor\u00fd prispieva k r\u00fdchlosti a jednoduchosti pr\u00e1ce s n\u00e1strojom Terraform.<\/li>\n\n\n\n<li><strong>Deklarat\u00edvny pr\u00edstup<\/strong> &#8211; n\u00e1stroju Terraform sta\u010d\u00ed op\u00edsa\u0165, ako si predstavujeme v\u00fdsledok nasadenia infra\u0161trukt\u00fary. Ako konkr\u00e9tne to dosiahnu\u0165, to u\u017e zariadi Terraform.<\/li>\n\n\n\n<li><strong>Bez agenta<\/strong> &#8211; Terraform nepotrebuje \u017eiadny softv\u00e9r, ktor\u00fd by ste museli in\u0161talova\u0165 e\u0161te pred nasaden\u00edm. To znamen\u00e1 \u013eahk\u00fa in\u0161tal\u00e1ciu a pou\u017eitie n\u00e1stroja Terraform.<\/li>\n\n\n\n<li><strong>R\u00fdchlos\u0165 a jednoduchos\u0165<\/strong> &#8211; pr\u00edstup <em>infra\u0161trukt\u00fara ako k\u00f3d<\/em> (IaC) umo\u017e\u0148uje nasadi\u0165 cel\u00fa infra\u0161trukt\u00faru iba spusten\u00edm skriptu. O v\u0161etko ostatn\u00e9 sa postar\u00e1 samotn\u00fd Terraform.<\/li>\n\n\n\n<li><strong>Obnova zo z\u00e1lohy<\/strong> &#8211; v pr\u00edpade p\u00e1du celej infra\u0161trukt\u00fary je znovunasadenie iba z\u00e1le\u017eitos\u0165 spustenia vy\u0161\u0161ie spom\u00ednan\u00e9ho skriptu. Ru\u010dn\u00e1 obnova by ur\u010dite trvala dlh\u0161ie u\u017e iba na jedinom serveri, nehovoriac o viacer\u00fdch.<\/li>\n\n\n\n<li><strong>Minimalizovanie ch\u00fdb<\/strong> &#8211; ke\u010f\u017ee nasadenie infra\u0161trukt\u00fary pomocou Terraformu predstavuje iba spustenie skriptu, vytv\u00e1ra sa minim\u00e1lny priestor pre \u013eudsk\u00fa chybu. Sk\u00f4r n\u00e1jdeme a odstr\u00e1nime chybu v nieko\u013ek\u00fdch riadkoch, ako v ru\u010dnom procese nasadzovania.<\/li>\n\n\n\n<li><strong>T\u00edmov\u00e1 spolupr\u00e1ca<\/strong> &#8211; na skripte ako textovom s\u00fabore m\u00f4\u017eu spolupracova\u0165 viacer\u00ed \u010dlenovia t\u00edmu napr\u00edklad <a href=\"https:\/\/www.websupport.sk\/podpora\/kb\/git-historia-instalacia-a-pouzitie-offline\/\">pomocou spr\u00e1vcu zdrojov\u00e9ho k\u00f3du Git<\/a>. V\u00fdskyt ch\u00fdb sa tak m\u00f4\u017ee zn\u00ed\u017ei\u0165 na takmer zanedbate\u013en\u00e9 minimum.<\/li>\n\n\n\n<li><strong>Pokro\u010dil\u00e1 bezpe\u010dnos\u0165<\/strong> &#8211; Terraform odpor\u00fa\u010da oddeli\u0165 citliv\u00e9 \u00fadaje ako napr\u00edklad prihlasovacie meno a heslo do s\u00faborov, ktor\u00e9 s\u00fa zabezpe\u010den\u00e9 u\u017e len t\u00fdm, \u017ee sa zdie\u013eaj\u00fa iba s \u00fazkou skupinou \u013eud\u00ed, ide\u00e1lne sa e\u0161te aj \u0161ifruj\u00fa.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">In\u0161talujeme Terraform<\/h2>\n\n\n\n<p>N\u00e1stroj Terrafrom budeme in\u0161talova\u0165 a pou\u017e\u00edva\u0165 na opera\u010dnom syst\u00e9me Ubuntu Linux, ale rovnako je mo\u017en\u00e9 in\u0161talova\u0165 a pou\u017ei\u0165 ho aj na Windowse (cez Chocolatey) \u010di MacOS (cez Homebrew).<\/p>\n\n\n\n<p>Najsk\u00f4r nain\u0161talujeme n\u00e1stroje potrebn\u00e9 po\u010das in\u0161tal\u00e1cie (prv\u00fd riadok), potom stiahneme a over\u00edme GPG k\u013e\u00fa\u010d (ostatn\u00e9 riadky). Kontroln\u00fd s\u00fa\u010det (fingerprint) k\u013e\u00fa\u010da sa mus\u00ed zhodova\u0165 s touto hodnotou: <code>E8A0 32E0 94D8 EB4E A189 D270 DA41 8C88 A321 9F7B<\/code><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt-get update &amp;&amp; sudo apt-get install -y gnupg software-properties-common<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">wget -O- https:\/\/apt.releases.hashicorp.com\/gpg | gpg --dearmor | sudo tee \/usr\/share\/keyrings\/hashicorp-archive-keyring.gpg<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">gpg --no-default-keyring --keyring \/usr\/share\/keyrings\/hashicorp-archive-keyring.gpg --fingerprint<\/pre>\n\n\n\n<p>Ak sa GPG k\u013e\u00fa\u010d podarilo overi\u0165, pokra\u010dujeme pridan\u00edm ofici\u00e1lneho repozit\u00e1ra spolo\u010dnosti HashiCorp do syst\u00e9mu (prv\u00fd riadok) a n\u00e1slednou in\u0161tal\u00e1ciou samotn\u00e9ho n\u00e1stroja Terraform (druh\u00fd riadok).<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">echo \"deb [signed-by=\/usr\/share\/keyrings\/hashicorp-archive-keyring.gpg] https:\/\/apt.releases.hashicorp.com $(lsb_release -cs) main\" | sudo tee \/etc\/apt\/sources.list.d\/hashicorp.list<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt update &amp;&amp; sudo apt-get install terraform<\/pre>\n\n\n\n<p>Po \u00faspe\u0161nej in\u0161tal\u00e1cii n\u00e1stroja Terraform over\u00edme nain\u0161talovan\u00fa verziu:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">terraform -version<\/pre>\n\n\n\n<p>V \u010dase p\u00edsania tohto n\u00e1vodu bola aktu\u00e1lna verzia 1.3.5 a \u010falej teda budeme predpoklada\u0165 t\u00fato verziu alebo nov\u0161iu.<\/p>\n\n\n\n<p>Okrem samotn\u00e9ho n\u00e1stroja Terraform si doin\u0161talujeme aj jeho roz\u0161\u00edrenie zodpovedn\u00e9 za automatick\u00e9 dop\u013a\u0148anie a n\u00e1sledne re\u0161tartujeme shell:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">touch ~\/.bashrc &amp;&amp; terraform -install-autocomplete<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">S\u0165ahujeme inform\u00e1cie o syst\u00e9me VDC<\/h2>\n\n\n\n<p>V\u0161etky s\u00fabory budeme uklada\u0165 do prie\u010dinka <code>websupport_openstack<\/code>, ktor\u00fd vytvor\u00edme v domovskom prie\u010dinku aktu\u00e1lne prihl\u00e1sen\u00e9ho pou\u017e\u00edvate\u013ea (<code>~<\/code>):<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mkdir ~\/websupport_openstack<\/pre>\n\n\n\n<p>Aby sa n\u00e1stroj Terraform dok\u00e1zal pripoji\u0165 do syst\u00e9mu OpenStack, potrebuje inform\u00e1cie, v\u010faka ktor\u00fdm OpenStack jednozna\u010dne identifikujeme a odk\u00e1\u017eeme sa v \u0148om na konkr\u00e9tny projekt ur\u010dit\u00e9ho pou\u017e\u00edvate\u013ea. Na adrese <a href=\"https:\/\/cloud.websupport.sk\/horizon\/auth\/login\/\">cloud.websupport.sk<\/a> sa prihl\u00e1sime do d\u00e1tov\u00e9ho centra spolo\u010dnosti WebSupport, vyberieme <strong>Project<\/strong> a v \u010dasti <strong>API access<\/strong> hore vpravo stiahneme s\u00fabor <strong>clouds.yaml<\/strong> takto:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"601\" height=\"338\" src=\"https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/openstack-api_access-clouds_file.png\" alt=\"\" class=\"wp-image-23599\" srcset=\"https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/openstack-api_access-clouds_file.png 601w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/openstack-api_access-clouds_file-300x169.png 300w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/openstack-api_access-clouds_file-50x28.png 50w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/openstack-api_access-clouds_file-60x34.png 60w, https:\/\/www.websupport.sk\/podpora\/app\/uploads\/sites\/2\/2023\/01\/openstack-api_access-clouds_file-100x56.png 100w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>S\u00fabor <strong>clouds.yaml<\/strong> obsahuje v\u0161etky potrebn\u00e9 \u00fadaje, ktor\u00e9 v \u010fal\u0161om diele tohto seri\u00e1lu pou\u017eijeme na vytvorenie novej in\u0161tancie v syst\u00e9me OpenStack pomocou n\u00e1stroja Terraform.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Zhrnutie<\/h2>\n\n\n\n<p>V prvej \u010dasti seri\u00e1lu o n\u00e1stroji Terraform v syst\u00e9me OpenStack sme si oba predstavili produkty predstavili. Z\u00e1rove\u0148 sme uviedli d\u00f4vody, pre ktor\u00e9 je vhodn\u00e9 pou\u017ei\u0165 n\u00e1stroj Terraform. Rovnako sme uk\u00e1zali ako nain\u0161talova\u0165 Terraform a ako si zo syst\u00e9mu OpenStack stiahnu\u0165 inform\u00e1cie potrebn\u00e9 na pripojenie a pou\u017eitie n\u00e1stroja Terraform. V \u010fal\u0161ej \u010dasti si vytvorime in\u0161tanciu v syst\u00e9me OpenStack pomocou n\u00e1stroja Terraform.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Terraform je free open source n\u00e1stroj od spolo\u010dnosti HashiCorp, ktor\u00fd dok\u00e1\u017ee automatizova\u0165 nasadenie infra\u0161trukt\u00fary (IaaS), platformy (PaaS) a softv\u00e9ru (SaaS). Ide teda o n\u00e1stroj pon\u00fakaj\u00faci komplexn\u00e9 rie\u0161enie, no na jeho pou\u017eitie nepotrebujeme vedie\u0165 programova\u0165. Sta\u010d\u00ed nap\u00edsa\u0165 konfigura\u010dn\u00fd s\u00fabor v jazyku pre \u013eud\u00ed dobre \u010ditate\u013enom a o ostatn\u00e9 sa u\u017e postar\u00e1&#8230;<\/p>\n","protected":false},"author":28,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[505],"ht-kb-tag":[336,453,339,261,381,508,198,192],"class_list":["post-23587","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-terraform","ht_kb_tag-cli","ht_kb_tag-iac","ht_kb_tag-open-source","ht_kb_tag-openstack","ht_kb_tag-server","ht_kb_tag-terraform","ht_kb_tag-ubuntu","ht_kb_tag-vdc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Terraform v prostred\u00ed VDC - z\u00e1kladn\u00e9 inform\u00e1cie, v\u00fdhody a in\u0161tal\u00e1cia - Websupport centrum podpory<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.sk\/podpora\/kb\/terraform-v-prostredi-vdc-zakladne-informacie-vyhody-a-instalacia\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Terraform v prostred\u00ed VDC - z\u00e1kladn\u00e9 inform\u00e1cie, v\u00fdhody a in\u0161tal\u00e1cia - Websupport centrum podpory\" \/>\n<meta property=\"og:description\" content=\"Terraform je free open source n\u00e1stroj od spolo\u010dnosti HashiCorp, ktor\u00fd dok\u00e1\u017ee automatizova\u0165 nasadenie infra\u0161trukt\u00fary (IaaS), platformy (PaaS) a softv\u00e9ru (SaaS). 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