controller-idioms
operator-sdk
| controller-idioms | operator-sdk | |
|---|---|---|
| 1 | 23 | |
| 163 | 7,013 | |
| 0.6% | 0.6% | |
| 4.9 | 8.0 | |
| 9 days ago | 9 days ago | |
| Go | Go | |
| Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
controller-idioms
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Writing a Kubernetes Operator
Since Go got generics, working with the Kubernetes API could become far more ergonomic. It's been pulling teeth until now. I'm eager to see how the upstream APIs change over time.
In the mean time, one of the creators of the Operator Framework[0] built a bunch of useful patterns using generics that we used to build the SpiceDB Operator[1] called controller-idioms[2].
Does anyone know of other efforts to improve the status quo?
[0]: https://operatorframework.io
[1]: https://github.com/authzed/spicedb-operator
[2]: https://github.com/authzed/controller-idioms
operator-sdk
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Building a Kubernetes Operator with the Operator Framework
operator-sdk: brew install operator-sdk
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Annotations in Kubernetes Operator Design
The operator that I've been working on is designed to manage the full lifecycle of a QuestDB database instance, including version and hardware upgrades, config changes, backups, and (eventually) recovery from node failure. I used the Operator SDK and kubebuilder frameworks to provide scaffolding and API support.
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Hacking in kind (Kubernetes in Docker)
I've recently been working on an operator (built using the operator-sdk) that manages cluster node lifecycles. Kind allows you to spin up clusters with multiple nodes, using a Docker container per-node and joining them using a common Docker network. However, the kind executable does not allow you to modify an existing cluster by adding or removing a node.
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Creating Kubernetes Operators with operator-sdk
To illustrate what we can do with an operator, I will create a proof of concept using operator-sdk. According to the official website::
- What Is A Kubernetes Operator?
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Writing a Kubernetes Operator
Besides the frameworks TFA lists, you can also build Operators in Ansible or Helm.
https://sdk.operatorframework.io/
- Question: Resources to learn K8s operator programming
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Using k8s-apiserver as AAA server for microservices?
Operator SDK is basically just a thin wrapper for kube-builder
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What topics should I cover as DevOps in Golang after practice and learning syntax
You mean the Operator SDK? https://sdk.operatorframework.io
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Dont understand how I can watch external resources modification/deletion with my custom operator
yes I agree with youu, an issue has been opened on the operator-sdk github page regarding this topic https://github.com/operator-framework/operator-sdk/issues/6117
What are some alternatives?
kubectl-operator - Manage Kubernetes Operators from the command line
kubebuilder - Kubebuilder - SDK for building Kubernetes APIs using CRDs
databricks-kube-operator - A Kubernetes operator to enable GitOps style deploys for Databricks resources
terraform-provider-kubernetes-alpha - A Terraform provider for Kubernetes that uses dynamic resource types and server-side apply. Supports all Kubernetes resources.
kubeplus - Kubernetes Operator to create Kubernetes-native APIs from Helm charts for SaaS
sample-controller-kubebuilder - This is Sample Controller(Foo Controller) developed by Kubebuilder
cronjobber - Cronjobber is a cronjob controller for Kubernetes with support for time zones
postgres-operator - Postgres operator creates and manages PostgreSQL clusters running in Kubernetes
controller-runtime - Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery)
prometheus-operator - Prometheus Operator creates/configures/manages Prometheus clusters atop Kubernetes
sandbox-operator - A Kubernetes operator for creating isolated environments