September 2024
Intermediate to advanced
156 pages
3h 52m
German
Content preview from Kubernetes Operators
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Anhang A. Ausführen eines Operators als Einsatz innerhalb eines Clusters
Einen Operator außerhalb des Clusters auszuführen, ist für Test- und Debugging-Zwecke praktisch, aber in der Produktion werden Operatoren als Kubernetes Deployments ausgeführt. Für diese Art der Bereitstellung sind ein paar zusätzliche Schritte erforderlich:
-
Erstelle das Image. Der Befehl
builddes Operator-SDK verweist auf den zugrunde liegenden Docker-Daemon, um das Operator-Image zu erstellen, und nimmt den vollständigen Namen und die Version des Images auf, wenn er ausgeführt wird:$operator-sdkbuildjdob/visitors-operator:0.1 -
Konfiguriere die Bereitstellung. Aktualisiere die Datei deploy/operator.yaml, die das SDK erstellt, mit dem Namen des Bildes. Das zu aktualisierende Feld heißt
imageund ist zu finden unter:spec -> template -> spec -> containers
In der generierten Datei ist der Wert
REPLACE_IMAGEvoreingestellt. Du solltest ihn so ändern, dass er dem Namen des Bildes entspricht, das du mit dem vorherigen Befehl erstellt hast.Wenn du das Image erstellt hast, schiebe es in ein extern zugängliches Repository wie Quay.io oder Docker Hub.
-
Setze die CRD ein. Das SDK generiert ein CRD-Skelett, das einwandfrei funktioniert, aber in Anhang B findest du weitere Informationen, wie du diese Datei ausbauen kannst:
$kubectlapply-fdeploy/crds/*_crd.yaml -
Setze das Dienstkonto und die Rolle ein. Das SDK generiert das Dienstkonto und die Rolle, die der Operator benötigt. Aktualisiere diese, um ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.