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Operator-sdk Alternatives
Similar projects and alternatives to operator-sdk
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Grafana
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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certificates
🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.
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prometheus-operator
Prometheus Operator creates/configures/manages Prometheus clusters atop Kubernetes
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Juju
Orchestration engine that enables the deployment, integration and lifecycle management of applications at any scale, on any infrastructure (Kubernetes or otherwise).
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better operator-sdk alternative or higher similarity.
operator-sdk discussion
operator-sdk reviews and mentions
Posts with mentions or reviews of operator-sdk.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-12-28.
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Building a Kubernetes Operator | A Practical Guide
Note: The Controller runtime is not the only way one can build a Kubernetes Operator, there are multiple ways to do so such as using the Operator Framework SDK or Kubebuilder, which are both frameworks built on top of the Controller runtime and utilize it under the hood to assist you when building complex Operators. You could even build an application that utilizes the Kubernetes Rest API through client libraries in various languages such as Python, Java, JavaScript etc depending on your tech stack. Find the Full list of Client Libraries on the Kubernetes Documentation. In this article, we will use the Controller runtime because it offers flexibility and provides a hands-on understanding of how Controllers work internally. This approach is ideal for gaining deeper insight into the inner workings of Kubernetes Operators while maintaining the ability to extend or customize as needed.
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How to Write a Kubernetes Operator Using client-go
client-go is the official Golang client for Kubernetes, responsible for interacting with the Kubernetes API server using REST API. In fact, client-go can do almost anything, not just for writing operators. Even the internal implementation of kubectl is based on client-go. As for more specialized frameworks used to write operators, including controller-runtime, kubebuilder, and operator-sdk, they will be introduced later in this series.
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🚀 Building a Kubernetes Operator with an NGINX CRD
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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A note from our sponsor - SaaSHub
www.saashub.com | 14 May 2025
Stats
Basic operator-sdk repo stats
26
7,404
8.3
28 days ago
operator-framework/operator-sdk is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of operator-sdk is Go.
Popular Comparisons
- operator-sdk VS controller-runtime
- operator-sdk VS kubebuilder
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- operator-sdk VS postgres-operator
- operator-sdk VS go-tfe
- operator-sdk VS sample-controller-kubebuilder
- operator-sdk VS gobyexample
- operator-sdk VS queue
- operator-sdk VS sandbox-operator
- operator-sdk VS terraform-provider-kubernetes-alpha
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com