{"id":38312,"date":"2019-10-31T22:22:55","date_gmt":"2019-10-31T19:22:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/prostoj-i-bezopasnyj-sposob-avtomatizatsii-kanareechnyh-deploev-s-pomoshhyu-helm\/"},"modified":"2019-10-31T22:22:55","modified_gmt":"2019-10-31T19:22:55","slug":"prostoj-i-bezopasnyj-sposob-avtomatizatsii-kanareechnyh-deploev-s-pomoshhyu-helm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/prostoj-i-bezopasnyj-sposob-avtomatizatsii-kanareechnyh-deploev-s-pomoshhyu-helm","title":{"rendered":"Lihtne ja turvaline viis kanarbikute kasutuselev\u00f5tu automatiseerimiseks Helmiga","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Lihtne
\n
\nKanaldeploy on v\u00e4ga t\u00f5hus viis uue koodi testimiseks v\u00e4ikese kasutajate alamhulga peal. See v\u00e4hendab oluliselt liiklust, mis v\u00f5ib tekitada probleeme juurutamise protsessis, kuna see toimub ainult kindlas alagruppis. See m\u00e4rkus k\u00e4sitleb, kuidas sellist juurutamist Kubernetes ja juurutamise automatiseerimise vahenditega korraldada. Eeldatakse, et teil on v\u00e4hemalt p\u00f5hiline arusaam Helm'ist ja Kubernetes'i ressurssidest.<\/i>.
\n<\/a><\/noindex>
\n\"Lihtne
\n
\nLihtne kanaldeploy Kubernetes'is sisaldab kahte peamist ressurssi: teenust ja juurutamisvahendit. Kanaldeploy t\u00f6\u00f6tab l\u00e4bi \u00fche teenuse, mis suhtleb kahe erineva ressursiga, mis teenindavad uuenduste liiklust. \u00dcks neist ressurssidest t\u00f6\u00f6tab \"kanal\" versiooniga, teine aga stabiilsega. Sel juhul saame reguleerida kanalversioonide arvu, et v\u00e4hendada vajaliku teenindatava liikluse mahtu. N\u00e4iteks, kui eelistate Yaml'i kasutada, n\u00e4eb see Kubernetes'is v\u00e4lja j\u00e4rgmiselt: <\/p>\n

kind: Deployment\nmetadata:\n  name: app-canary\n  labels:\n    app: app\nspec:\n  replicas: 1\n  ...\n    image: myapp:canary\n---\nkind: Deployment\nmetadata:\n  name: app\n  labels:\n    app: app\nspec:\n  replicas: 5\n  ...\n    image: myapp:stable\n---\nkind: Service\nselector:\n  app: app # Selector suunab liikluse m\u00f5lemasse juurutusse.<\/code><\/pre>\n
\nSeda varianti on veel lihtsam esitada kubectl'i abil ja Kubernetes'i dokumentatsioonis<\/a><\/noindex> on isegi t\u00e4ielik juhend selle stsenaariumi jaoks. Kuid selle postituse peamine k\u00fcsimus on, kuidas me kavatseme seda protsessi automatiseerida, kasutades Helm'i. <\/p>\n
Kanaldeploy automatiseerimine <\/h3>\n
\nEsiteks vajame Helm'i chartide kaarti, kuhu on juba lisatud eespool arutatud ressursid. See peaks v\u00e4lja n\u00e4gema umbes nii:<\/p>\n
~\\\/charts\\\/app\n\u251c\u2500\u2500 Chart.yaml\n\u251c\u2500\u2500 README.md\n\u251c\u2500\u2500 templates\n\u2502   \u251c\u2500\u2500 NOTES.txt\n\u2502   \u251c\u2500\u2500 _helpers.tpl\n\u2502   \u251c\u2500\u2500 deployment.yaml\n\u2502   \u2514\u2500\u2500 service.yaml\n\u2514\u2500\u2500 values.yaml<\/code><\/pre>\n
\nHelm'i kontseptsiooni aluseks on mitme versiooni haldamine. Stabiilne versioon on meie p\u00f5hialgse stabiilse koodiharu. Kuid Helm'i abil saame juurutada kanali v\u00e4ljaande koos eksperimentaalse koodiga. Peamine prioriteet on s\u00e4ilitada liikluse vahetus stabiilse versiooni ja kanali v\u00e4ljaande vahel. Kogu seda haldame spetsiaalse valijaga:<\/p>\n
selector:\n  app.kubernetes.io\\\/name: myapp<\/code><\/pre>\n
\nMeie nii \u201ekanaril\u00f5he\u201c kui ka stable-deploy ressursid osutavad sellele sildile moodulites. Kui k\u00f5ik \u00f5igesti seadistada, n\u00e4eme, et kanariversiooni juurutamise ajal meie Helm charti liiklust suunatakse v\u00e4rskelt juurutatud moodulitele. Selle k\u00e4su stabiilne versioon n\u00e4eb v\u00e4lja selline: <\/p>\n
helm upgrade\n  --install myapp \n  --namespace default \n  --set app.name=myapp       # L\u00e4heb app.kubernetes.io\/name\n  --set app.version=v1       # L\u00e4heb app.kubernetes.io\/version\n  --set image.tag=stable \n  --set replicaCount=5<\/code><\/pre>\n
\nN\u00fc\u00fcd kontrollime meie kanaride v\u00e4ljaannet. Kanariversiooni juurutamiseks peame meeles pidama kahte asja. V\u00e4ljaande nimi peab olema erinev, et me ei kataks \u00fcle praegust stabiilset versiooni. Versioon ja silt peavad samuti olema erinevad, et saaksime juurutada teistsugust koodi ja m\u00e4\u00e4rata ressursside siltide erinevusi. <\/p>\n
helm upgrade\n  --install myapp-canary \n  --namespace default \n  --set app.name=myapp       # L\u00e4heb app.kubernetes.io\/name\n  --set app.version=v2       # L\u00e4heb app.kubernetes.io\/version\n  --set image.tag=canary \n  --set replicaCount=1<\/code><\/pre>\n
\nNoh, see ongi k\u00f5ik! Kui teenust pingida, saab n\u00e4ha, et kanaride versiooniuuendus suunab liiklust ainult osa ajast. <\/p>\n
\nKui otsite juurutamise automatiseerimise t\u00f6\u00f6riistu, mis h\u00f5lmavad kirjeldatud loogikat, p\u00f6\u00f6rake t\u00e4helepanu Deliverybot<\/a><\/noindex> ja Helm automatiseerimise t\u00f6\u00f6riistadele GitHubis<\/a><\/noindex>. Helm chart'id, mida kasutatakse \u00fclalpool kirjeldatud meetodi rakendamiseks, asuvad GitHubis, siit<\/a><\/noindex>. Tegelikult oli see teoreetiline \u00fclevaade, kuidas praktikas juurutada kanariversioonide automatiseerimist, koos konkreetsete kontseptsioonide ja n\u00e4idetega.
\n
Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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\u0434\u0435\u043f\u043b\u043e\u044f. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u0432\u044b \u043a\u043e\u0435-\u0447\u0442\u043e \u0437\u043d\u0430\u0435\u0442\u0435 \u043e Helm \u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28760,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-38312","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Lihtne ja turvaline viis kanaride juurutuste automatiseerimiseks Helmiga | 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