{"id":87840,"date":"2020-07-11T01:42:08","date_gmt":"2020-07-10T23:42:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/serverless-prilozheniya-bystree-i-proshhe-vmeste-s-openshift"},"modified":"2020-07-11T01:42:08","modified_gmt":"2020-07-10T23:42:08","slug":"serverless-prilozheniya-bystree-i-proshhe-vmeste-s-openshift","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/serverless-prilozheniya-bystree-i-proshhe-vmeste-s-openshift","title":{"rendered":"Serverless applications are faster and easier with OpenShift","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Red Hat OpenShift Serverless er en samling af h\u00e6ndelsesorienterede Kubernetes-komponenter designet til mikrotjenester, containere og funktioner som en service (FaaS). <\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/cc842b5bf30c7cf0be4b09fa8d0795d4.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nDenne out-of-the-box l\u00f8sning indeholder sikkerhedsv\u00e6rkt\u00f8jer og trafikstyring, og samler Red Hat Operators, <noindex><a rel=\"nofollow\" href=\"https:\/\/knative.dev\/\">Knative<\/a><\/noindex> og <noindex><a rel=\"nofollow\" href=\"https:\/\/developers.redhat.com\/products\/openshift\/getting-started\">Red Hat OpenShift<\/a><\/noindex> til k\u00f8rsel af stateless- og serverless-arbejdsbelastninger p\u00e5 OpenShift-platformen i private, offentlige, hybride og multi-cloud milj\u00f8er.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/developers.redhat.com\/topics\/serverless-architecture\">OpenShift Serverless<\/a><\/noindex> giver udviklere mulighed for helt at fokusere p\u00e5 at skabe n\u00e6ste generations applikationer ved at tilbyde en bred vifte af programmeringssprog, frameworks, udviklingsmilj\u00f8er og andre v\u00e6rkt\u00f8jer til at skabe og implementere banebrydende forretningsprodukter.<\/p>\n<p>N\u00f8glefunktioner i Red Hat OpenShift Serverless:<\/p>\n<ul>\n<li>Bredt udvalg af programmeringssprog og runtime-komponenter til serverless-applikationer. Du kan v\u00e6lge pr\u00e6cis det v\u00e6rkt\u00f8jss\u00e6t, du har brug for.<\/li>\n<li>Automatisk horisontal skalering baseret p\u00e5 intensiteten af anmodninger eller ved h\u00e6ndelsens indtr\u00e6den, hvilket sikrer effektiv ressourceforvaltning baseret p\u00e5 faktiske behov og ikke hypotetiske.<\/li>\n<li>Fuld integration med OpenShift Pipelines, en Kubernetes-orienteret CI\/CD-system baseret p\u00e5 Tekton,<\/li>\n<li>Grundlaget i form af Red Hat Operator, der muligg\u00f8r for administratorer at styre k\u00f8rende instanser sikkert og opdatere dem samt organiserer livscyklussen for applikationer p\u00e5 en cloud-service-lignende m\u00e5de.<\/li>\n<li>L\u00f8bende overv\u00e5gning af nye community-udgivelser, herunder Knative 0.13 Serving, Eventing og kn (den officielle CLI til Knative) \u2013 som for alle andre Red Hat-produkter betyder det omhyggelig testning og verifikation p\u00e5 forskellige OpenShift-platforme og konfigurationer.<\/li>\n<\/ul>\n<p>\nDerudover arbejder Red Hat t\u00e6t sammen om serverless-teknologier med flere partnere, samt med Microsoft vedr\u00f8rende Azure Functions og <noindex><a rel=\"nofollow\" href=\"https:\/\/keda.sh\/\">KEDA<\/a><\/noindex> (l\u00e6s mere her <noindex><a rel=\"nofollow\" href=\"https:\/\/www.redhat.com\/en\/blog\/red-hat-collaborates-microsoft-keda-enable-azure-functions-openshift\">her<\/a><\/noindex>). Is\u00e6r har vi allerede en certificeret OpenShift-operator hos <noindex><a rel=\"nofollow\" href=\"https:\/\/triggermesh.com\/\">TriggerMesh<\/a><\/noindex>, og for nylig begyndte vi et samarbejde med <noindex><a rel=\"nofollow\" href=\"http:\/\/serverless.com\/\">Serverless.com<\/a><\/noindex>, s\u00e5 Serverless Framework kan arbejde med OpenShift Serverless og Knative. Disse partnerskaber kan ses som et tegn p\u00e5 modenhed i serverless og begyndelsen p\u00e5 dannelsen af en branche\u00f8kosystem.<\/p>\n<p>Hvis du tidligere har installeret den forh\u00e5ndsversion af Red Hat OpenShift Serverless, kan den opdateres til den offentligt tilg\u00e6ngelige GA-version (general availability). For Technology Preview-versionen skal OLM Subscription Update Channel konfigureres som vist i Figur 1.<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/3e0327553977362a6dffb94bd8897da2.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 1. Opdatering af abonnementskanalen.<\/i><\/p>\n<p>Abonnementskanalen skal opdateres, s\u00e5 den svarer til OpenShift Container Platform version 4.4 eller 4.3.<\/p>\n<h3>Knative Services \u2013 topklasse serviceydelse<\/h3>\n<p>\nOpenShift 4.4 forenkler markant udrulningen af applikationer med OpenShift Serverless funktionalitet, hvilket muligg\u00f8r nemt at udrulle Knative Services direkte fra Developer-tilstand i OpenShift webkonsollen.<\/p>\n<p>N\u00e5r der tilf\u00f8jes en ny applikation til projektet, er det tilstr\u00e6kkeligt at angive Knative Service som ressource type, hvilket straks aktiverer OpenShift Serverless-funktionaliteten og muligheden for at skalere til nul i ventetilstand, som vist i Figur 2.<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/960c4ceaa5b3e3879f34cb12cf18fe95.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 2. Valg af Knative Service som ressource type.<\/i><\/p>\n<h3>Nem ops\u00e6tning med Kourier<\/h3>\n<p>\nSom vi allerede har n\u00e6vnt i <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openshift.com\/blog\/announcing-openshift-serverless-1-5-0-tech-preview-a-sneak-peek-of-our-ga\">annonceringen af OpenShift Serverless 1.5.0 Tech Preview<\/a><\/noindex>, har brugen af <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/knative\/net-kourier\">Kourier<\/a><\/noindex> significantly reduced the list of requirements for installing Serverless on OpenShift, and in the GA version, these requirements have become even fewer. All of this reduces resource consumption, speeds up cold start of applications, and eliminates the impact of regular non-serverless workloads running in the same namespace.<\/p>\n<p>Generelt accelererer disse forbedringer samt tilpasninger i OpenShift 4.3.5 oprettelsen af applikationer fra en forudbygget container med 40-50%, afh\u00e6ngigt af billedets st\u00f8rrelse.<br \/>\nHvordan det hele foreg\u00e5r uden brug af Kourier kan ses i Figur 3:<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/1f64bcf829e4cce3e2aebc406acec484.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 3. Tid til at oprette applikationer, n\u00e5r Kourier ikke bruges.<\/i><\/p>\n<p>Hvordan det hele foreg\u00e5r, n\u00e5r Kourier anvendes, kan ses i Figur 4:<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/0b7c8273a4853215c168e7f510036f12.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 4. Tid til at oprette applikationer ved brug af Kourier.<\/i><\/p>\n<h3>TLS\/SSL automatisk<\/h3>\n<p>\nOpenShift Serverless kan nu automatisk oprette og implementere TLS\/SSL for ruten (OpenShift Route) til din Knative Service, s\u00e5 du ikke beh\u00f8ver at fokusere p\u00e5 implementeringen og vedligeholdelsen af disse funktioner, mens du arbejder p\u00e5 applikationen. Med andre ord, Serverless befrier udvikleren for de problemer, der er forbundet med TSL, samtidig med at det opretholder det h\u00f8je sikkerhedsniveau, som alle forventer fra Red Hat OpenShift.<\/p>\n<h3>OpenShift Serverless kommandolinjeinterface<\/h3>\n<p>\nI OpenShift Serverless kaldes det kn og er tilg\u00e6ngeligt direkte i OpenShift-konsollen p\u00e5 siden med kommandolinjev\u00e6rkt\u00f8jer, som vist p\u00e5 Figur 5:<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/596c594fad0640247ac3412aa30fff22.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 5. Downloadside for OpenShift Serverless kommandolinjegr\u00e6nseflade.<\/i><\/p>\n<p>N\u00e5r du downloader fra denne side, f\u00e5r du versionen kn til MacOS, Windows eller Linux, som er verificeret af Red Hat og garanteret ikke indeholder skadelig software.<\/p>\n<p>I Figur 6 vises, hvordan du med bare \u00e9n kommando i kn kan implementere en tjeneste for hurtigt at oprette en applikationsinstans p\u00e5 OpenShift-platformen med adgang via URL:<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/91c904fe070014959f15b120b63e18fc.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 6. Brug af kn kommandolinjegr\u00e6nsefladen.<\/i><\/p>\n<p>Dette v\u00e6rkt\u00f8j giver dig mulighed for at styre ressourcerne for Serverless Serving og Eventing uden at skulle se eller redigere nogen YAML-konfigurationer.<\/p>\n<h3>Forbedret topologi visning i udvikler-tilstand i konsollen<\/h3>\n<p>\nLad os nu se, hvordan den forbedrede topologi visning letter styringen af Knative Services.<\/p>\n<h4>Knative Service\u2013centreret visualisering<\/h4>\n<p>\nKnative Services vises p\u00e5 topologisiden som et rektangel, der indeholder alle revisioner, som vist p\u00e5 Figur 7:<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/3398041d720871dbffa695c49c8b5167.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 7. Knative Services p\u00e5 topologisiden.<\/i><\/p>\n<p>Her kan du hurtigt se de aktuelle procentandele af trafikfordelingen for Knative Service, og du kan gruppere Knative Services inden for en applikationsgruppe for nemt visuelt at overv\u00e5ge, hvad der sker inden for den valgte gruppe.<\/p>\n<h4>Foldning af lister over OpenShift Knative Services<\/h4>\n<p>\nN\u00e5r vi forts\u00e6tter med emnet om gruppering, skal det n\u00e6vnes, at i OpenShift 4.4 kan du folde Knative Services inden for en applikationsgruppe for en mere bekvem visning og styring af tjenesterne, n\u00e5r der implementeres mere komplekse applikationer i projektet.<\/p>\n<h4>Knative Service i detaljer<\/h4>\n<p>\nI OpenShift 4.4 er sidepanelet ogs\u00e5 blevet forbedret for Knative Services. Det har f\u00e5et en faneblad til ressourcer, hvor komponenterne i tjenesten vises, s\u00e5som Pods, Revisions og Routes. Disse komponenter giver ogs\u00e5 hurtig og nem adgang til loggene for individuelle pod\u2019er.<\/p>\n<p>Topologi visningen viser ogs\u00e5 procentandelene af trafikfordelingen og giver endda mulighed for hurtigt at \u00e6ndre konfigurationen. P\u00e5 denne m\u00e5de kan du hurtigt f\u00e5 indsigt i trafikfordelingen for den valgte Knative Service i realtid baseret p\u00e5 antallet af pod\u2019er, der k\u00f8rer for den angivne revision, som vist p\u00e5 Figur 8.<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/3c4c15ac05c1490d04bd72919379b580.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Figur 8. Trafikfordeling for Knative Service.<\/i><\/p>\n<h4>Et dybere kig p\u00e5 Serverless Revisions<\/h4>\n<p>\nMed Topology-pr\u00e6sentationen kan du nu ogs\u00e5 f\u00e5 et meget dybere indblik i den valgte revision, for eksempel hurtigt se alle dens pods og, hvis n\u00f8dvendigt, gennemg\u00e5 deres logs. Derudover kan du nemt f\u00e5 adgang til deployment og revisionskonfigurationer i denne visning samt til den undermappe, der peger direkte p\u00e5 denne revision, som vist i Fig. 9:<\/p>\n<p><img decoding=\"async\" alt=\"Serverless applications are faster and easier with OpenShift\" src=\"\/wp-content\/uploads\/2020\/07\/4fa0f1dbe23dd81b56fa738d584d05ae.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Fig. 9. Ressourcer associeret med revisionerne.<\/i><\/p>\n<p>Vi h\u00e5ber, at de ovenfor beskrevne nyheder vil v\u00e6re nyttige for dig, n\u00e5r du opretter og administrerer serverless-applikationer, og at der i fremtidige versioner vil v\u00e6re endnu flere nyttige funktioner til udviklere, s\u00e5som muligheden for at oprette begivenhedskilder og mere.<\/p>\n<h3>Interesseret?<\/h3>\n<p>\n<noindex><a rel=\"nofollow\" href=\"http:\/\/www.openshift.com\/try\">Pr\u00f8v OpenShift!<\/a><\/noindex><\/p>\n<h3>Vi v\u00e6rds\u00e6tter din feedback<\/h3>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/forms.gle\/6HArjszuqyE1xr3f8\">Fort\u00e6l os<\/a><\/noindex>, hvad du t\u00e6nker om serverless. Slut dig til vores Google-gruppe <noindex><a rel=\"nofollow\" href=\"https:\/\/groups.google.com\/forum\/#!forum\/openshift-dev-usershttps:\/\/groups.google.com\/forum\/#!forum\/openshift-dev-users\">OpenShift Developer Experience<\/a><\/noindex> for at deltage i diskussioner og Office Hours-seminarer for at samarbejde med os og dele dine feedback og forslag.<\/p>\n<h3>Yderligere oplysninger<\/h3>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/developers.redhat.com\/blog\/2020\/04\/30\/whats-new-in-the-openshift-4-4-web-console-developer-experience\/\">L\u00e6r mere<\/a><\/noindex> om udvikling af applikationer i OpenShift ved hj\u00e6lp af f\u00f8lgende Red Hat-ressourcer:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/www.openshift.com\/serverless\">OpenShift Serverless ressourcer<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/developers.redhat.com\/topics\/serverless-architecture\">OpenShift Serverless og Knative<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/redhat-developer-demos.github.io\/knative-tutorial\/knative-tutorial\/index.html\">Guide til Knative<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/developers.redhat.com\/openshift\">Udvikling af applikation p\u00e5 OpenShift-platformen<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/learn.openshift.com\/middleware\/serverless\/\">Introduktion til OpenShift Serverless<\/a><\/noindex><\/li>\n<\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/redhatrussia\/blog\/510144\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Red Hat OpenShift Serverless \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043d\u0430\u0431\u043e\u0440 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0441\u043e\u0431\u044b\u0442\u0438\u044f\u043c\u0438 Kubernetes-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u043c\u0438\u043a\u0440\u043e\u0441\u0435\u0440\u0432\u0438\u0441\u043e\u0432, \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0439 Function-as-a-Service (FaaS). \u042d\u0442\u043e \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u00ab\u0438\u0437 \u043a\u043e\u0440\u043e\u0431\u043a\u0438\u00bb \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0446\u0438\u0438 \u0442\u0440\u0430\u0444\u0438\u043a\u0430 \u0438 \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u0435\u0442 \u0432 \u0441\u0435\u0431\u0435 Red Hat Operators, Knative \u0438 Red Hat OpenShift \u0434\u043b\u044f \u0437\u0430\u043f\u0443\u0441\u043a\u0430 stateless- \u0438 serverless-\u043d\u0430\u0433\u0440\u0443\u0437\u043e\u043a \u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 OpenShift \u0432 \u0447\u0430\u0441\u0442\u043d\u044b\u0445, \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u0445, \u0433\u0438\u0431\u0440\u0438\u0434\u043d\u044b\u0445 \u0438 \u043c\u0443\u043b\u044c\u0442\u0438\u043e\u0431\u043b\u0430\u0447\u043d\u044b\u0445 \u0441\u0440\u0435\u0434\u0430\u0445. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":87841,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-87840","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=\"Red Hat OpenShift Serverless \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043d\u0430\u0431\u043e\u0440 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0441\u043e\u0431\u044b\u0442\u0438\u044f\u043c\u0438 Kubernetes-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 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