{"id":35323,"date":"2019-10-31T22:03:38","date_gmt":"2019-10-31T19:03:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/slyorm-gusenitsa-prevratilas-v-babochku\/"},"modified":"2019-10-31T22:03:38","modified_gmt":"2019-10-31T19:03:38","slug":"slyorm-gusenitsa-prevratilas-v-babochku","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/slyorm-gusenitsa-prevratilas-v-babochku","title":{"rendered":"Sleerm: uss muutus liblikaks","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Sleerm: uss muutus liblikaks\" src=\"\/wp-content\/uploads\/2019\/06\/9067ea4d43f2c4f7fd0b472df28f59c8.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<h2 id=\"tldr\">&lt;TL;DR&gt;<\/h2>\n<p><\/p>\n<ol>\n<li>Slurm t\u00f5epoolest v\u00f5imaldab tutvuda Kubernetesega v\u00f5i oma teadmisi v\u00e4rskendada.<\/li>\n<li>Osalejad on rahul. Vaid \u00fcksikuid inimesi oli, kes ei \u00f5ppinud midagi uut v\u00f5i ei lahendanud oma probleeme. Esimese p\u00e4eva absoluutne rahatagastus (\"Kui tunnete, et Slurm ei ole teie jaoks, tagastame pileti hinna\") kasutati vaid \u00fche korra, p\u00f5hjendades seda oma v\u00f5imete \u00fclehindamisega.<\/li>\n<li>J\u00e4rgmine Slurm toimub septembri alguses Peterburis. Selectel, meie pidev sponsorg, pakub mitte ainult pilve stendide jaoks, vaid ka oma konverentsisaali.<\/li>\n<li>Kordame baasilist Slurmi (9-11 september) ning esitleme uut programmi: Slurm DevOps (4-6 september).<\/li>\n<\/ol>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2 id=\"chto-takoe-slyorm-i-kak-on-izmenilsya\">Mis on Slurm ja kuidas see on muutunud<\/h2>\n<p><\/p>\n<p>\u0413\u043e\u0434 \u043d\u0430\u0437\u0430\u0434 \u043d\u0430\u043c \u043f\u0440\u0438\u0448\u043b\u0430 \u0432 \u0433\u043e\u043b\u043e\u0432\u0443 \u0438\u0434\u0435\u044f \u043f\u0440\u043e\u0432\u0435\u0441\u0442\u0438 \u043a\u0443\u0440\u0441\u044b \u043f\u043e Kubernetes. \u0412 \u0430\u0432\u0433\u0443\u0441\u0442\u0435&#8217;18 \u043f\u0440\u043e\u0448\u0435\u043b \u0421\u043b\u0451\u0440\u043c-1: \u0442\u0440\u0443\u0434\u043d\u044b\u0439, \u0441 continuous presintation (\u043a\u043e\u0433\u0434\u0430 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0434\u043e\u043f\u0438\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0443\u0436\u0435 \u043d\u0430 \u0441\u0446\u0435\u043d\u0435), \u0441 \u043a\u0443\u0447\u0435\u0439 \u0431\u044b\u0442\u043e\u0432\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c. \u0418\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u044f \u0441\u043f\u043b\u0430\u0447\u0438\u0432\u0430\u044e\u0442: \u0443\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u0438 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0421\u043b\u0451\u0440\u043c\u0430, \u043a\u0430\u043a \u0411\u0440\u0430\u0442\u0441\u0442\u0432\u043e \u041a\u043e\u043b\u044c\u0446\u0430, \u0434\u043e \u0441\u0438\u0445 \u043f\u043e\u0440 \u043e\u0431\u0449\u0430\u044e\u0442\u0441\u044f \u0434\u0440\u0443\u0433 \u0441 \u0434\u0440\u0443\u0433\u043e\u043c.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Sleerm: uss muutus liblikaks\" src=\"\/wp-content\/uploads\/2019\/06\/2a6d73eceb41a3c234a26e459cb168cd.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<em>Nii n\u00e4gi v\u00e4lja Slurm-1<\/em><\/p>\n<p><\/p>\n<p>\u041d\u0430 \u043f\u0435\u0440\u0432\u043e\u043c \u0421\u043b\u0451\u0440\u043c\u0435 \u0440\u043e\u0434\u0438\u043b\u0430\u0441\u044c \u0438\u0434\u0435\u044f \u043f\u0440\u043e\u0432\u0435\u0441\u0442\u0438 \u041c\u0435\u0433\u0430\u0421\u043b\u0451\u0440\u043c. \u041c\u044b \u0441\u043f\u0440\u043e\u0441\u0438\u043b\u0438 \u0443 \u043b\u044e\u0434\u0435\u0439, \u043a\u0430\u043a\u0438\u0435 \u0442\u0435\u043c\u044b \u0438\u043c \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u044b, \u0438 \u0432 \u043e\u043a\u0442\u044f\u0431\u0440\u0435 \u043f\u0440\u043e\u0432\u0435\u043b\u0438 \u043f\u0440\u043e\u0434\u0432\u0438\u043d\u0443\u0442\u044b\u0439 \u043a\u0443\u0440\u0441 \u00ab\u041f\u043e \u0437\u0430\u044f\u0432\u043a\u0430\u043c \u0443\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u043e\u0432\u00bb. \u041f\u043e\u043b\u0443\u0447\u0438\u043b\u043e\u0441\u044c \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0435, \u043d\u043e \u043e\u0434\u043d\u043e\u0440\u0430\u0437\u043e\u0432\u043e\u0435 \u043c\u0435\u0440\u043e\u043f\u0440\u0438\u044f\u0442\u0438\u0435. \u041a \u043c\u0430\u044e&#8217;19 \u043c\u044b \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043b\u0438 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0438\u0439 \u043f\u0440\u043e\u0434\u0432\u0438\u043d\u0443\u0442\u044b\u0439 \u043a\u0443\u0440\u0441, \u0441\u043e \u0441\u0432\u043e\u0435\u0439 \u043b\u043e\u0433\u0438\u043a\u043e\u0439 \u0438 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u0438\u0441\u0442\u043e\u0440\u0438\u0435\u0439.<\/p>\n<p><\/p>\n<p>Aasta jooksul on Sl\u00ebrm organisatsiooniliselt muutunud:<br \/>\n\u2014 Docker ja Ansible eemaldati p\u00f5hiprogrammist ja tehtud eraldi veebikursusteks.<br \/>\n\u2014 Korraldasime tehnilise toe, mis aitab \u00f5pilastel \u00f5piklastrite t\u00f5rkeid lahendada.<br \/>\n\u2014 Esinejatele on tekkinud metoodiline tugi.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Sleerm: uss muutus liblikaks\" src=\"\/wp-content\/uploads\/2019\/06\/df50b156ac07048fadb0d5fdee127ff3.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<em>Meeskond, kes korraldas Sl\u00ebrm-4<\/em><\/p>\n<p><\/p>\n<h2 id=\"otzyvy-uchastnikov\">Osalejate arvamused<\/h2>\n<p><\/p>\n<p>Murrame rekordeid: 170 osalejat p\u00f5hisel Sl\u00ebrmil, 75 \u2013 MegaSl\u00ebrmil.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Sleerm: uss muutus liblikaks\" src=\"\/wp-content\/uploads\/2019\/06\/c38db60feaebc11a56fed6906f0ededa.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Sl\u00ebrm-4<br \/>\nTagasiside vormi t\u00e4itis 101 inimene 170-st.<\/p>\n<p><\/p>\n<p>Kas Kubernetes on n\u00fc\u00fcd selgem?<br \/>\n41 \u2014 Praegu ei m\u00f5ista k8s-i, aga n\u00e4en, kuhu kaevata.<br \/>\n36 \u2014 Varem ei teadnud k8s-ist, n\u00fc\u00fcd olen aru saanud.<br \/>\n23 \u2014 Olin k8s-ist juba varem teadlik, n\u00fc\u00fcd tean paremini.<br \/>\n1 \u2014 Ei \u00f5ppinud midagi uut.<br \/>\n0 \u2014 Ei saanud k8s-ist midagi aru. <\/p>\n<p><\/p>\n<p>Kuidas on Sl\u00ebrmi intensiivsus? <\/p>\n<p><\/p>\n<p>16 inimest leiab, et Sl\u00ebrm on liiga lihtne ja aeglane, ning 14 \u2013 et liiga keeruline ja kiire. \u00dclej\u00e4\u00e4nutele sobib see ideaalselt.<\/p>\n<p><\/p>\n<p>Kas te lahendasite \u00fclesande, millega tulite Sl\u00f5rmile? <\/p>\n<p><\/p>\n<p>90 \u2014 Jah.<br \/>\n11 \u2014 Ei.<\/p>\n<p><\/p>\n<p>MegaSl\u00f5rm<\/p>\n<p><\/p>\n<p>40 inimest t\u00e4itsid tagasiside vormi. 2 inimest \u00fctlesid, et see oli liiga lihtne ja aeglane. 1 inimene ei lahendanud \u00fclesannet, millega ta MegaSl\u00f5rmile tuli. \u00dclej\u00e4\u00e4nutel on k\u00f5ik OK.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/serveradmin.ru\/otzyv-o-slerm-kak-ya-prohodil-obuchenie-po-kubernetes\/\">Tagasiside Sl\u00f5rmi kohta aadressil https:\/\/serveradmin.ru<\/a><\/noindex><\/p>\n<p><\/p>\n<h2 id=\"otzyvy-spikerov\">Esinejate tagasiside<\/h2>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Sleerm: uss muutus liblikaks\" src=\"\/wp-content\/uploads\/2019\/06\/cfbeb0b99d4c835bd1ab05925806c887.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Kui Peterburi Sl\u00f5rmil veebruaris olid peamiselt algajad, siis Moskva Sl\u00f5rmil oli inimesi, kes olid juba Kubernetesega kokku puutunud. K\u00fcsimusi oli palju edasij\u00f5udnutele, mis panid m\u00f5tlema.<\/p>\n<p><\/p>\n<p>Kui Peterburis k\u00fcsiti, millal me oma forki kubespray v\u00e4lja paneme, siis Moskvas juba k\u00fcsiti, miks me soovitame kasutada oma forki, mitte originaali kubespray. See on juba kriitiline m\u00f5tlemine kesktaseme ja kogenud inimeste seas.<\/p>\n<p><\/p>\n<p>Praktika oli keeruline, inimesed tegid palju vigu ja see on suurep\u00e4rane: kogemusi tuleb saada \u00f5ppimise ajal, mitte lahingus.<\/p>\n<p><\/p>\n<p>Korduvaid piire sertifikaatide saamisel, GitHubist allalaadimisel jne kogesime pidevalt. See on elu \u2014 me t\u00f5stsime korraga \u00fcles umbes 200 klastrit Selectelis. Keegi ei valmista oma ressursse ja piire selliseks ette. <\/p>\n<p><\/p>\n<h2 id=\"anons-slyorma-v-selectel\">Sl\u00f5rmi reklaam Selectelis<\/h2>\n<p><\/p>\n<p>\u2192 <noindex><a rel=\"nofollow\" href=\"https:\/\/slurm.io\/?utm_source=habr\">Registreerimine Sl\u00f5rm-5<\/a><\/noindex><br \/>\nHind: 25 000 \u20bd<\/p>\n<p>\n<b class=\"spoiler_title\">Programm:<\/b><\/p>\n<p>Teema nr 1: Sissejuhatus Kubernetesesse, p\u00f5hikomponendid<br \/>\n\u2014 K8s tehnoloogia sissejuhatus. Kirjeldus, rakendused, kontseptsioonid<br \/>\n\u2014 Pod, ReplicaSet, Deployment, Service, Ingress, PV, PVC, ConfigMap, Secret<\/p>\n<p><\/p>\n<p>Teema nr 2: Klastri struktuur, p\u00f5hikomponendid, talitlush\u00e4irete taluvus, k8s-v\u00f5rk<br \/>\n\u2014 Klastri \u00fclesehitus, peamised komponendid, t\u00f5rkevus<br \/>\n\u2014 K8s v\u00f5rk<\/p>\n<p><\/p>\n<p>Teema nr 3: Kubespray, klastri h\u00e4\u00e4lestamine ja seadistamine<br \/>\n\u2014 Kubespray, Kubernetese klastri seadistamine ja h\u00e4\u00e4lestamine<\/p>\n<p><\/p>\n<p>Teema \u21164: Kuberneetsi t\u00e4iustatud abstraktsioonid<br \/>\n\u2014 DaemonSet, StatefulSet, RBAC, Job, CronJob, Pod-i ajastamine, InitContainer<\/p>\n<p><\/p>\n<p>Teema \u21165: Teenuste ja rakenduste avaldamine<br \/>\n\u2014 Teenuste avaldamise meetodite \u00fclevaade: NodePort vs LoadBalancer vs Ingress<br \/>\n\u2014 Ingress kontroller (Nginx): sissetuleva liikluse tasakaalustamine<br \/>\n\u2014 Cert-manager: saame automaatselt SSL\/TLS sertifikaadid<\/p>\n<p><\/p>\n<p>Teema nr 6: Sissejuhatus Helmi<\/p>\n<p><\/p>\n<p>Teema \u21167: cert-manageri seadistamine<\/p>\n<p><\/p>\n<p>Teema \u21168: Ceph: paigaldamine 'tee \u00e4ra nagu mina'<\/p>\n<p><\/p>\n<p>Teema \u21169: Logimine ja j\u00e4lgimine<br \/>\n\u2014 Klastri j\u00e4lgimine, Prometheus<br \/>\n\u2014 Klastri logimine, Fluentd\/Elastic\/Kibana<\/p>\n<p><\/p>\n<p>Teema \u211610: Klastri uuendamine<\/p>\n<p><\/p>\n<p>Teema \u211611: Praktika, rakenduse dockeriseerimine ja k\u00e4ivitamine klastris<\/p>\n<p><\/p>\n<p>Docker ja Ansible kursused stepik.org on hinna sees.<\/p>\n<p><\/p>\n<p>\u2192 <noindex><a rel=\"nofollow\" href=\"https:\/\/slurm.io\/devops\/?utm_source=habr\">Registreerimine Slurm DevOps<\/a><\/noindex><br \/>\nHind: 45 000 \u20bd<\/p>\n<p>\n<b class=\"spoiler_title\">Programm:<\/b><\/p>\n<p>Teema \u21161: Git-i tutvustus<br \/>\n\u2014 Alustavad k\u00e4sud git init, commit, add, diff, log, status, pull, push<br \/>\n\u2014 Kohaliku keskkonna seadistamine: praktilised soovitused<br \/>\n\u2014 Git flow, harud ja sildid, \u00fchendamise strateegiad<br \/>\n\u2014 T\u00f6\u00f6 mitme kaugrepo'ga<\/p>\n<p><\/p>\n<p>Teema nr 2: Meeskonnat\u00f6\u00f6 Git'iga<br \/>\n\u2014 GitHub flow<br \/>\n\u2014 Fork, remote, pull request<br \/>\n\u2014 Konfliktid, v\u00e4ljaanded, uuesti Gitflow'ist ja teistest voogudest meeskondade jaoks<\/p>\n<p><\/p>\n<p>Teema nr 3: CI\/CD, automatiseerimise sissejuhatus<br \/>\n\u2014 Automatiseerimine git'is (robotid, CI sissejuhatus, hooks)<br \/>\n\u2014 T\u00f6\u00f6riistad (bash, make, gradle)<br \/>\n\u2014 Tootmisliinide loomine ja nende rakendamine IT-s<\/p>\n<p><\/p>\n<p>Teema nr 4: CI\/CD: T\u00f6\u00f6 Gitlabiga<br \/>\n\u2014 Koostamine, testimine, juurutamine<br \/>\n\u2014 Etapid, muutujad, t\u00e4itmise kontroll (only, when, include)<\/p>\n<p><\/p>\n<p>Teema nr 5: Rakenduse arendamise vaatenurgast<br \/>\n\u2014 Loome mikroteenuse Pythonis (sealhulgas testid)<br \/>\n\u2014 Docker-compose'i rakendamine arenduses<\/p>\n<p><\/p>\n<p>Teema nr 6: Infrastructure as Code<br \/>\n\u2014 IaC: l\u00e4henemine infrastruktuurile kui koodile<br \/>\n\u2014 IaC Terraformi n\u00e4itel<br \/>\n\u2014 IaC Ansible'i n\u00e4itel<br \/>\n\u2014 Idempotentsus, deklaratiivsus<br \/>\n\u2014 Praktika Ansible'i m\u00e4ngude loomisel<br \/>\n\u2014 Konfiguratsioonide salvestamine, koost\u00f6\u00f6, rakenduste automatiseerimine<\/p>\n<p><\/p>\n<p>Teema nr 7: Infrastruktuuri testimine<br \/>\n\u2014 Testimine ja pidev integreerimine koos Molecule ja Gitlab CI-ga<\/p>\n<p><\/p>\n<p>Teema nr 8: Serverite automatiseerimine<br \/>\n\u2014 Piltide loomine<br \/>\n\u2014 PXE ja DHCP<\/p>\n<p><\/p>\n<p>Teema nr 9: Infrastruktuuri automatiseerimine<br \/>\n\u2014 N\u00e4ide infrastruktuuriteenusest serverite autentimiseks<br \/>\n\u2014 ChatOps (messengerite integreerimine torujuhtmetega)<\/p>\n<p><\/p>\n<p>Teema nr 10: Turbeautomatiseerimine<br \/>\n\u2014 CI\/CD artefaktide allkirjastamine<br \/>\n\u2014 Haavatavuste skaneerimine<\/p>\n<p><\/p>\n<p>Teema nr 11: J\u00e4lgimine<br \/>\n\u2014 SLA, SLO, viga eelarve m\u00e4\u00e4ratlemine ja teised hirmutavad terminid SRE maailmast<br \/>\n\u2014 SRE: SLI ja SLO j\u00e4lgimise praktika<br \/>\n\u2014 SRE: Viga eelarve rakendamise praktika<br \/>\n\u2014 SRE: Katkestuste ja operatiivkoormuse haldamine (apigateway, teenuse mesh, ringi katked)<br \/>\n\u2014 Torujuhtmete j\u00e4lgimine ja arenduse m\u00f5\u00f5dikud<\/p>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/455972\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>&lt;TL;DR&gt; \u0421\u043b\u0451\u0440\u043c \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u043e\u0439\u0442\u0438 \u0432 \u0442\u0435\u043c\u0443 Kubernetes \u0438\u043b\u0438 \u043f\u043e\u0434\u0442\u044f\u043d\u0443\u0442\u044c \u0441\u0432\u043e\u0438 \u0437\u043d\u0430\u043d\u0438\u044f. \u0423\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u0438 \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u044b. \u0422\u0435\u0445, \u043a\u0442\u043e \u043d\u0438\u0447\u0435\u0433\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u043d\u0435 \u0443\u0437\u043d\u0430\u043b \u0438\u043b\u0438 \u043d\u0435 \u0440\u0435\u0448\u0438\u043b \u0441\u0432\u043e\u0438 \u0437\u0430\u0434\u0430\u0447\u0438, \u0441\u0447\u0438\u0442\u0430\u043d\u043d\u044b\u0435 \u0435\u0434\u0438\u043d\u0438\u0446\u044b. \u0411\u0435\u0437\u0443\u0441\u043b\u043e\u0432\u043d\u044b\u043c \u043c\u0430\u043d\u0438\u0431\u0435\u043a\u043e\u043c \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0434\u043d\u044f (\u00ab\u0415\u0441\u043b\u0438 \u0432\u044b \u0447\u0443\u0432\u0441\u0442\u0432\u0443\u0435\u0442\u0435, \u0447\u0442\u043e \u0421\u043b\u0451\u0440\u043c \u0432\u0430\u043c \u043d\u0435 \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442, \u043c\u044b \u0432\u0435\u0440\u043d\u0435\u043c \u043f\u043e\u043b\u043d\u0443\u044e \u0446\u0435\u043d\u0443 \u0431\u0438\u043b\u0435\u0442\u0430\u00bb) \u0432\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0441\u044f \u0432\u0441\u0435\u0433\u043e \u043e\u0434\u0438\u043d \u0447\u0435\u043b\u043e\u0432\u0435\u043a, \u043e\u0431\u043e\u0441\u043d\u043e\u0432\u0430\u0432 \u0442\u0435\u043c, \u0447\u0442\u043e \u043f\u0435\u0440\u0435\u043e\u0446\u0435\u043d\u0438\u043b \u0441\u0432\u043e\u0438 \u0441\u0438\u043b\u044b. \u0421\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 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