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chore: update docs/kubernetes-operators-controllers.md [20260517-1948]
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## Introduction
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- [Red Hat Build of Kueue](https://docs.redhat.com/en/documentation/openshift_container_platform/4.21/html/ai_workloads/red-hat-build-of-kueue#about-kueue) 🌟 - This documentation introduces Red Hat Build of Kueue, a Kubernetes-native batch job orchestrator. It explains how Kueue manages and schedules batch workloads by providing features like fair-sharing, preemption, and resource aggregation, making it suitable for AI and high-performance computing (HPC) workloads.
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- [How Kubernetes Operators Fit into Platform Building and When Traditional IaC Isn't Enough](https://www.thestack.technology/how-kubernetes-operators-fit-into-to-platform-building-and-when-traditional-iac-isnt-enough/) 🌟 - This article explores the role of Kubernetes Operators in modern platform engineering, highlighting their advantages over traditional Infrastructure as Code (IaC) for managing complex applications and infrastructure within the Kubernetes control plane. It discusses how operators encapsulate expertise for tasks like backups, upgrades, and scaling, integrating seamlessly with tools like Argo and Flux for enhanced drift detection and reconciliation.
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- [How Kubernetes Operators Fit into Platform Building and When Traditional IaC Isn't Enough](https://www.thestack.technology/how-kubernetes-operators-fit-into-to-platform-building-and-when-traditional-iac-isnt-enough//) 🌟 - This article explores the role of Kubernetes Operators in modern platform engineering, highlighting their advantages over traditional Infrastructure as Code (IaC) for managing complex applications and infrastructure within the Kubernetes control plane. It discusses how operators encapsulate expertise for tasks like backups, upgrades, and scaling, integrating seamlessly with tools like Argo and Flux for enhanced drift detection and reconciliation.
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- [kruschecompany.com: What is a Kubernetes Operator and Where it Can be Used?](https://kruschecompany.com/kubernetes-operator/)
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- [kruschecompany.com: Prometheus Operator – Installing Prometheus Monitoring Within The Kubernetes Environment](https://kruschecompany.com/kubernetes-prometheus-operator/)
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- [kruschecompany.com: What is a Kubernetes Operator and Where it Can be Used?](https://kruschecompany.com/wp-content/uploads/2020/01/kubernetes-operator.jpg/)
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- [kruschecompany.com: Prometheus Operator – Installing Prometheus Monitoring Within The Kubernetes Environment](https://kruschecompany.com/page-not-found//)
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- [hashicorp.com: Creating Workspaces with the HashiCorp Terraform Operator for Kubernetes](https://www.hashicorp.com/blog/creating-workspaces-with-the-hashicorp-terraform-operator-for-kubernetes/)
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- [banzaicloud.com: Kafka rolling upgrade made easy with Supertubes](https://banzaicloud.com/blog/kafka-rolling-upgrade/)
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- [devops.com: Day 2 for the Operator Ecosystem 🌟](https://devops.com/day-2-for-the-operator-ecosystem/)
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- [KUDO: The Kubernetes Universal Declarative Operator 🌟](https://kudo.dev/) KUDO is a toolkit that makes it easy to build Kubernetes Operators, in most cases just using YAML.
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- [itnext.io: **Operator Lifecycle Manager (OLM)** 🌟](https://itnext.io/wth-is-a-operator-lifecycle-manager-873cf1661b04)
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- [kube-fluentd-operator 🌟](https://github.com/vmware/kube-fluentd-operator) is a sane, no-brainer Kubernetes+Helm distribution of Fluentd with batteries included, config validation, no needs to restart, with sensible defaults and best practices built-in. You can use Kubernetes labels to filter/route logs!
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- [kube-fluentd-operator 🌟](https://github.com/vmware-archive/kube-fluentd-operator) is a sane, no-brainer Kubernetes+Helm distribution of Fluentd with batteries included, config validation, no needs to restart, with sensible defaults and best practices built-in. You can use Kubernetes labels to filter/route logs!
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- [Domain-harvester](https://github.com/shurshun/domain-harvester) is an operator that collects domains from all Ingress resources in a Kubernetes cluster and provides its expiry information
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- [Cass Operator](https://github.com/datastax/cass-operator) The DataStax Kubernetes Operator for Apache Cassandra®
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- [Kotal operator](https://github.com/kotalco/kotal) is cloud agnostic blockchain deployer that make it easy to deploy highly available, self-managing, self-healing blockchain infrastructure (networks, nodes, storage clusters ...) on any cloud.
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- [Speculator: Redis Operator](https://github.com/OT-CONTAINER-KIT/redis-operator) A Golang based redis operator that will make/oversee Redis standalone/cluster mode setup on top of the Kubernetes. It can create a redis cluster setup with best practices on Cloud as well as the Bare metal environment. Also, it provides an in-built monitoring capability using redis-exporter.
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- [github.com/carlosedp/lbconfig-operator: External Load Balancer Operator 🌟](https://github.com/carlosedp/lbconfig-operator) a Kubernetes/openshift Operator to dynamically configure external load-balancers distributing the traffic to the cluster nodes. It's not 100% (will it ever be?) but already configures the F5 BigIP. The idea is to have multiple LB backends soon.
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- [Sentry Operator](https://github.com/jace-ys/sentry-operator) A Kubernetes operator for automating the provisioning and management of Sentry resources via Kubernetes CRDs.
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- [thenewstack.io: When to Use, and When to Avoid, the Operator Pattern 🌟](https://thenewstack.io/kubernetes-when-to-use-and-when-to-avoid-the-operator-pattern/)
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- [infoq.com: Kubernetes Operators in Depth](https://www.infoq.com/articles/kubernetes-operators-in-depth/)
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- [thenewstack.io: When to Use, and When to Avoid, the Operator Pattern 🌟](https://thenewstack.io/kubernetes-when-to-use-and-when-to-avoid-the-operator-pattern//)
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- [infoq.com: Kubernetes Operators in Depth](https://www.infoq.com/articles/kubernetes-operators-in-depth//)
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- [DB Operator 🌟](https://github.com/kloeckner-i/db-operator) is a Kubernetes Operator for the management of cloud databases, primarily Google Cloud SQL(GCSQL). It is designed to support the on demand creation of test environments in CI/CD pipelines.
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- [cncf.io: Kubernetes Operators 101](https://www.cncf.io/blog/2020/10/02/kubernetes-operators-101/)
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- [container-solutions.com: Kubernetes Operators Explained](https://blog.container-solutions.com/kubernetes-operators-explained)
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- [kubeload - load testing](https://github.com/Efrat19/kubeload) is a Kubernetes operator that lets you configure your load-test initial load, max load, interval and hatch-rate. You can use CRD to define all the parameters and repeat your load testing experiments.
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- [contentful.com: Open-sourcing kube-secret-syncer: A Kubernetes operator to sync secrets from AWS Secrets Manager](https://www.contentful.com/blog/2020/10/20/open-source-kube-secret-syncer/)
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- [contentful.com: Open-sourcing kube-secret-syncer: A Kubernetes operator to sync secrets from AWS Secrets Manager](https://www.contentful.com/blog/open-source-kube-secret-syncer//)
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- [contentful-labs/kube-secret-syncer 🌟](https://github.com/contentful-labs/kube-secret-syncer)
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- [registry-creds](https://github.com/alexellis/registry-creds) is a Kubernetes operator that can be used to propagate a single ImagePullSecret to all namespaces within your cluster. The primary reason for creating this operator is to make it easier to consume images from Docker Hub.
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- [gemini](https://github.com/FairwindsOps/gemini) is a Kubernetes CRD and operator for managing VolumeSnapshots. This allows you to back up your PersistentVolumes on a regular schedule, retire old backups, and restore backups with minimal downtime.
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- [Kdo: deployless development on Kubernetes 🌟](https://kdo.dev/) Kdo is a command line tool that enables developers to run, develop and test code changes in a realistic deployed setting without having to deal with the complexity of Kubernetes deployment and configuration.
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- [HostPort Operator](https://github.com/rmb938/hostport-allocator) is a Kubernetes Operator to allocate host ports
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- [iximiuz.com: Exploring Kubernetes Operator Pattern 🌟](https://iximiuz.com/en/posts/kubernetes-operator-pattern/)
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- [isaaguilar/terraform-operator: Terraform Operator](https://github.com/isaaguilar/terraform-operator) A Kubernetes CRD and Controller to handle Terraform operations by generating k8s jobs catered to perform Terraform workflows
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- [iximiuz.com: Exploring Kubernetes Operator Pattern 🌟](https://iximiuz.com/en/posts/kubernetes-operator-pattern//)
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- [isaaguilar/terraform-operator: Terraform Operator](https://github.com/GalleyBytes/terraform-operator) A Kubernetes CRD and Controller to handle Terraform operations by generating k8s jobs catered to perform Terraform workflows
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- [didil/autobucket-operator](https://github.com/didil/autobucket-operator) The autobucket operator is a Kubernetes operator that automatically creates and manages Cloud Buckets (Object Storage) for k8s Deployments.
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- [openshift.com: Is your Operator Air-Gap Friendly?](https://www.openshift.com/blog/is-your-operator-air-gap-friendly)
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- [kuberhealthy 🌟](https://github.com/Comcast/kuberhealthy) An operator for synthetic monitoring on Kubernetes. Write your own tests in your own container and Kuberhealthy will manage everything else. Automatically creates and sends metrics to Prometheus and InfluxDB. Included simple JSON status page. Supplements other solutions like Prometheus very nicely!
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- [openshift.com: Is your Operator Air-Gap Friendly?](https://www.redhat.com/en/blog/is-your-operator-air-gap-friendly)
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- [kuberhealthy 🌟](https://github.com/kuberhealthy/kuberhealthy) An operator for synthetic monitoring on Kubernetes. Write your own tests in your own container and Kuberhealthy will manage everything else. Automatically creates and sends metrics to Prometheus and InfluxDB. Included simple JSON status page. Supplements other solutions like Prometheus very nicely!
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- [Bare Metal Operator](https://github.com/metal3-io/baremetal-operator) The Bare Metal Operator implements a Kubernetes API for managing bare metal hosts. It maintains an inventory of available hosts as Custom Resource Definitions.
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- [Meerkat](https://github.com/borchero/meerkat) Meerkat is a Kubernetes Operator that facilitates the deployment of OpenVPN in a Kubernetes cluster. By leveraging Hashicorp Vault, Meerkat securely manages the underlying PKI.
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- [Logging Operator](https://github.com/OT-CONTAINER-KIT/logging-operator) A golang based CRD operator to setup and manage logging stack (Elasticsearch, Fluentd, and Kibana) in the Kubernetes cluster. It helps to setup each component of the EFK stack separately.
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@@ -59,9 +59,9 @@
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- [IngressMonitorController (Deprecated)](https://github.com/stakater/IngressMonitorController) A Kubernetes controller to watch ingresses and create liveness alerts for your apps/microservices in UptimeRobot, StatusCake, Pingdom, etc.
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- [==FairwindsOps/rbac-manager: RBAC Manager== 🌟](https://github.com/FairwindsOps/rbac-manager) A Kubernetes operator that simplifies the management of Role Bindings and Service Accounts. RBAC Manager is designed to simplify authorization in Kubernetes. This is an operator that supports declarative configuration for RBAC with new custom resources. Instead of managing role bindings or service accounts directly, you can specify a desired state and RBAC Manager will make the necessary changes to achieve that state.
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- [KubePlus - Kubernetes Operator to deliver Helm charts as-a-service 🌟](https://github.com/cloud-ark/kubeplus)
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- [kubernetes.io: Writing a Controller for Pod Labels](https://kubernetes.io/blog/2021/06/21/writing-a-controller-for-pod-labels/)
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- [kubermatic.com: Why Implementing Kubernetes Operators Is a Good Idea! 🌟](https://www.kubermatic.com/blog/why-implementing-kubernetes-operators-is-a-good-idea/)
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- [thenewstack.io: We Pushed Helm to the Limit, then Built a Kubernetes Operator 🌟](https://thenewstack.io/we-pushed-helm-to-the-limit-then-built-a-kubernetes-operator/)
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- [kubernetes.io: Writing a Controller for Pod Labels](https://kubernetes.io/blog/2021/06/21/writing-a-controller-for-pod-labels//)
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- [kubermatic.com: Why Implementing Kubernetes Operators Is a Good Idea! 🌟](https://www.kubermatic.com/blog/why-implementing-kubernetes-operators-is-a-good-idea//)
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- [thenewstack.io: We Pushed Helm to the Limit, then Built a Kubernetes Operator 🌟](https://thenewstack.io/we-pushed-helm-to-the-limit-then-built-a-kubernetes-operator//)
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- [cncf.io: CNCF Operator White Paper (PDF) 🌟](https://www.cncf.io/wp-content/uploads/2021/07/CNCF_Operator_WhitePaper.pdf) This white paper defines Operators in a wider context than Kubernetes. It describes their characteristics and components, gives an overview of common patterns currently in use and explains how they differ from Kubernetes controllers.
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- [itnext.io: Kubexpose: A Kubernetes Operator, for fun and profit!](https://itnext.io/kubexpose-a-kubernetes-operator-for-fun-and-profit-f528586eee07) Access your Kubernetes Deployment over the Internet - [abhirockzz/kubexpose-operator](https://github.com/abhirockzz/kubexpose-operator) Access your Kubernetes Deployment over the Internet
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- [itnext.io: Kubernetes Operators: Cruise Control for Managing Cloud-Native Apps](https://itnext.io/kubernetes-operators-cruise-control-for-managing-cloud-native-apps-db328ef8e345)
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- [cloud-bulldozer/benchmark-operator: The Chuck Norris of cloud benchmarks](https://github.com/cloud-bulldozer/benchmark-operator) The intent of this Operator is to deploy common workloads to establish a performance baseline of Kubernetes cluster on your provider.
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- [pravega/pravega-operator](https://github.com/pravega/pravega-operator) Pravega Kubernetes Operator. Pravega is an open source distributed storage service implementing Streams. It offers Stream as the main primitive for the foundation of reliable storage systems: a high-performance, durable, elastic, and unlimited append-only byte stream with strict ordering and consistency. The Pravega Operator manages Pravega clusters deployed to Kubernetes and automates tasks related to operating a Pravega cluster.The operator itself is built with the Operator framework.
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- [Quentin-M/etcd-cloud-operator](https://github.com/Quentin-M/etcd-cloud-operator) Deploying and managing production-grade etcd clusters on cloud providers: failure recovery, disaster recovery, backups and resizing.
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- [==spring.io: Get to Know a Kubernetes Operator!==](https://spring.io/blog/2021/11/19/get-to-know-a-kubernetes-operator)
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- [==spring.io: Get to Know a Kubernetes Operator!==](https://spring.io/blog/2021/11/19/get-to-know-a-kubernetes-operator/)
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- [==levelup.gitconnected.com: Operators : Extending Kubernetes Capabilities==](https://levelup.gitconnected.com/operators-extending-kubernetes-capabilities-184df001b7e) Operators are software extensions to Kubernetes that make use of custom resources to manage applications and their components. So what it means is that there are some applications whose deployment and management might require manual intervention and operators is the solution to automate it. **Let’s say you need to deploy a database cluster for which each pod needs to be brought in sync after deployment, or say you need to perform a security scan whenever a new component is deployed, or maybe some configuration needs to be populated based on some event. Such a functionalities are not available in Kubernetes out of the box but can be implemented using operators.**
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- [VictoriaMetrics/operator](https://github.com/VictoriaMetrics/operator) Kubernetes operator for Victoria Metrics
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- [blog.px.dev/k8s-operator: 3 Reasons to Use Kubernetes Operators (and 2 Reasons Not To)](https://blog.px.dev/k8s-operator)
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- [blog.px.dev/k8s-operator: 3 Reasons to Use Kubernetes Operators (and 2 Reasons Not To)](https://blog.px.dev/k8s-operator/)
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- [practicalkubernetes.blogspot.com: Making the case for Kubernetes Operators](https://practicalkubernetes.blogspot.com/2022/01/making-case-for-kubernetes-operators.html)
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- [reactive-tech/kubegres](https://github.com/reactive-tech/kubegres) Kubegres is a Kubernetes operator allowing to deploy one or many **clusters of PostgreSql instances and manage databases replication, failover and backup.**
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- [==Capsule Operator==](https://github.com/clastix/capsule) is a Kubernetes multi-tenant Operator. It aggregates multiple namespaces in a Tenant. Within each tenant, users are free to create their namespaces and share all the assigned resources between the namespaces of the tenant.
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- [==Capsule Operator==](https://github.com/projectcapsule/capsule) is a Kubernetes multi-tenant Operator. It aggregates multiple namespaces in a Tenant. Within each tenant, users are free to create their namespaces and share all the assigned resources between the namespaces of the tenant.
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- [==redhat-cop/keepalived-operator: Keepalived operator==](https://github.com/redhat-cop/keepalived-operator) An operator to manage VIPs backed by keepalived. The objective of the keepalived operator is to allow for a way to create self-hosted load balancers in an automated way. From a user experience point of view the behavior is the same as of when creating LoadBalancer services with a cloud provider able to manage them.
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- [medium.com/@samng1991216: Building Kubernetes Operator Application from Scratch (Part 1)](https://medium.com/@samng1991216/building-kubernetes-operator-application-from-scratch-part-1-211b6b2467df)
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- [redhat-cop/dynamic-rbac-operator: Dynamic RBAC Operator](https://github.com/redhat-cop/dynamic-rbac-operator) Flexible definitions of Kubernetes RBAC rules. Writing Kubernetes RBAC definitions by hand can be a pain. This operator allows you to define "Dynamic" RBAC rules that change based on the state of your cluster, so you can spend your time writing the RBAC patterns that you'd like to deploy, rather than traditional, fully enumerated RBAC rules.
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- [alain-airom.medium.com: Kubernetes Operators Patterns and Best Practices 🌟](https://alain-airom.medium.com/kubernetes-operators-patterns-and-best-practices-b7fbaa4cbd1) Using operators to manage the lifecycle of multi-cloud, Kubernetes-based applications.
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- [OT-CONTAINER-KIT/mongodb-operator: MongoDB Operator](https://github.com/OT-CONTAINER-KIT/mongodb-operator) MongoDB Operator is an operator created in Golang to create, update, and manage MongoDB standalone, replicated, and arbiter replicated setup on Kubernetes and Openshift clusters.
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- [prosimcorp/reforma](https://github.com/prosimcorp/reforma) Reforma is a Kubernetes operator to patch resources with information from other resources. It is intended to use with GitOps and lets you do things such as creating annotation on a Service Account from metadata stored in a ConfigMap.
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- [weaveworks/tf-controller: Weave GitOps Terraform Controller](https://github.com/weaveworks/tf-controller) A GitOps Terraform controller for Kubernetes. Weave TF-controller is a controller for Flux to reconcile Terraform resources in the GitOps way.
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- [weaveworks/tf-controller: Weave GitOps Terraform Controller](https://github.com/flux-iac/tofu-controller) A GitOps Terraform controller for Kubernetes. Weave TF-controller is a controller for Flux to reconcile Terraform resources in the GitOps way.
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- [awstip.com: Manage AWS services directly from Kubernetes - AWS Controllers for Kubernetes (ACK)](https://awstip.com/manage-aws-services-directly-from-kubernetes-%EF%B8%8F-6c94e376febb) The AWS team released the ACK project, which allows users to create AWS services from within a Kubernetes cluster. In this tutorial, you will learn how to create an S3 bucket with a "Bucket" CRD.
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- [vitobotta/velero-notifications](https://github.com/vitobotta/velero-notifications) Velero-notifications is a simple Kubernetes controller written in Ruby that sends email/Slack/webhook notifications when backups or restores are performed by Velero in a Kubernetes cluster.
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- [NVIDIA/gpu-operator](https://github.com/NVIDIA/gpu-operator) NVIDIA GPU Operator creates/configures/manages GPUs atop Kubernetes. The NVIDIA GPU is a Kubernetes operator that automates the management of all NVIDIA software components needed to provision GPUs. These components include drivers, the Kubernetes device plugin, the NVIDIA Container Runtime, etc.
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- Testing Kubebuilder operators
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- Deploying Kubebuilder operators to Kubernetes
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- [coderanger/migrations-operator: Migrations-Operator](https://github.com/coderanger/migrations-operator) A Kubernetes operator to manage database migrations or similar application setup tasks.
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- [omerxx.com: 10 Things I wish I’d known before building a Kubernetes CRD controller](https://omerxx.com/k8s-controllers/) Controllers, operators, informers and other K8s mysteries. This article discusses a few of the gotchas of developing Kubernetes controllers:
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- [omerxx.com: 10 Things I wish I’d known before building a Kubernetes CRD controller](https://omerxx.com/k8s-controllers//) Controllers, operators, informers and other K8s mysteries. This article discusses a few of the gotchas of developing Kubernetes controllers:
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- CRDs don't create metadata by default
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- Interacting with CRDs outside the controller's context is not straightforward
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- "The DefaultUnstructuredConverter"
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- Deploy self-hosted runners on Kubernetes clusters with a simple set of commands
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- Auto scale runners based on demand
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- [medium.com/sda-se: Kubernetes Operator to the rescue. How our own MongoDB Operator improved our deployments](https://medium.com/sda-se/kubernetes-operator-to-the-rescue-how-our-own-mongodb-operator-improved-our-deployments-6d5ba3324abc) In this article you will learn about the challenges that the team at SDA SE faced when using a GitOps deployment and why they implemented their own Kubernetes Operator for MongoDB to speed up our deployments and reduce mistakes.
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- [==blog.frankel.ch: Introduction to Kubernetes extensibility== 🌟](https://blog.frankel.ch/kubernetes-extensibility/) In this article, you'll learn several extension points in Kubernetes: the data model, admission controllers, and client-side.
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- [==blog.frankel.ch: Introduction to Kubernetes extensibility== 🌟](https://blog.frankel.ch/kubernetes-extensibility//) In this article, you'll learn several extension points in Kubernetes: the data model, admission controllers, and client-side.
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- At its most basic level, Kubernetes is just a platform able to run container images. It stores its configuration in a distributed storage engine, etcd. The most significant part of this configuration is dedicated to the desired state for objects. For example, you only update this state when you schedule a pod using the kubectl command line.
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- Other components, called controllers, watch configuration changes and read the desired state. Then, they try to reconcile the desired state with the actual state. It’s nothing revolutionary: Puppet is based on the same control-loop approach, and AFAIK, Chef. Generally, a controller manages a single type of object, e.g., the DeploymentController manages deployments.
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- [superorbital.io: Testing Production Kubernetes Controllers](https://superorbital.io/blog/testing-production-controllers/) In this article, you will learn how to test Kubernetes controllers using a mix of unit tests, local integration tests, and more fully featured runtime integration tests.
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- [github.com/sieve-project/sieve](https://github.com/sieve-project/sieve) Automated Reliability Testing for Kubernetes Controllers/Operators. Sieve is a tool to help developers test their Kubernetes controllers by deterministically injecting faults and detecting dormant bugs at development time.
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- [betterprogramming.pub: Goldilocks vs. KRR](https://betterprogramming.pub/goldilocks-vs-krr-c986dfd7484d) The resources recommendation showdown!. Goldilocks is a Kubernetes operator written in Go, and it watches over a few custom resources to give out its Updates or Recommendations.
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- [medium.com/lonto-digital-services-integrator: Why We Developed Own Kubernetes Controller to Copy Secrets](https://medium.com/lonto-digital-services-integrator/why-we-developed-own-kubernetes-controller-to-copy-secrets-e46368ae6db9) In this article, you will learn the thought process, design decision and code that led to writing a custom controller to copy secrets from Hashicorp Vault to Kubernetes
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- [thenewstack.io: HashiCorp Vault Operator Manages Kubernetes Secrets](https://thenewstack.io/hashicorp-vault-operator-manages-kubernetes-secrets/) HashiCorp's new open source project, released alongside Vault 1.13 and now available in beta, makes it easier to use Vault with Kubernetes Secrets, automating tasks that were previously manual.
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- [thenewstack.io: HashiCorp Vault Operator Manages Kubernetes Secrets](https://thenewstack.io/hashicorp-vault-operator-manages-kubernetes-secrets//) HashiCorp's new open source project, released alongside Vault 1.13 and now available in beta, makes it easier to use Vault with Kubernetes Secrets, automating tasks that were previously manual.
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- [medium.com/@senjutide2000: Designing a Controller for Custom Resources from scratch for absolute beginners](https://medium.com/@senjutide2000/designing-a-controller-for-custom-resources-from-scratch-for-absolute-beginners-9cb84b7f906f) In this tutorial (and related repository and follow-up article), you will learn how to create your first Custom Resource Definition, Custom Resource and get a basic idea of the workflow of a controller
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- [github.com/2-alchemists/krossboard-kubernetes-operator](https://github.com/2-alchemists/krossboard-kubernetes-operator) Kubernetes Operator to handle cross-site, cross-distribution & multi-Kubernetes usage tracking, analytics and accounting (vanilla Kubernetes, OpenShift, EKS, AKS, GKE and other distros).
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- [github.com/2-alchemists/krossboard-kubernetes-operator](https://github.com/2-alchemists/krossboard) Kubernetes Operator to handle cross-site, cross-distribution & multi-Kubernetes usage tracking, analytics and accounting (vanilla Kubernetes, OpenShift, EKS, AKS, GKE and other distros).
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- Krossboard is a multi-cluster and cross-distribution Kubernetes usage accounting and analytics software
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- Each instance of Krossboard enables tracking the usage of a set of Kubernetes clusters listed in a kubeconfig secret
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- [medium.com/@mikakrief: Using Azure Service Operator v2](https://medium.com/@mikakrief/using-azure-service-operator-v2-4a1fa1f5e3b8) Azure Service Operator v2 is a Kubernetes operator that enables you to manage Azure resources directly through Kubernetes tooling. It’s designed to simplify the deployment and management of Azure services, allowing developers to use familiar Kubernetes commands (like kubectl apply) to handle Azure resources.
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## Red Hat Container Community of Practice Operators
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|
||||
- [==cloud.redhat.com: Red Hat Container Community of Practice Operators==](https://cloud.redhat.com/blog/red-hat-container-community-of-practice-operators) In this post, you will find a summary of the operators maintained by Red Hat and how they can be used to facilitate the adoption of OpenShift.
|
||||
- [==cloud.redhat.com: Red Hat Container Community of Practice Operators==](https://www.redhat.com/en/blog/red-hat-container-community-of-practice-operators) In this post, you will find a summary of the operators maintained by Red Hat and how they can be used to facilitate the adoption of OpenShift.
|
||||
|
||||
## Operator Capability Levels
|
||||
|
||||
- [Operator Capability Levels](https://operatorframework.io/operator-capabilities/) Operators come in different maturity levels in regards to their lifecycle management capabilities for the application or workload they deliver. The capability models aims to provide guidance in terminology to express what features users can expect from an Operator.
|
||||
- [Operator Capability Levels](https://operatorframework.io/operator-capabilities//) Operators come in different maturity levels in regards to their lifecycle management capabilities for the application or workload they deliver. The capability models aims to provide guidance in terminology to express what features users can expect from an Operator.
|
||||
|
||||
## Cluster Addons
|
||||
- [Kubernetes Gateway API](https://github.com/kubernetes-sigs/gateway-api) - *(Related to kubernetes-networking topic)*
|
||||
- [InGate: Ingress & Gateway API Controller (Archived)](https://github.com/kubernetes-sigs/ingate) - *(Related to kubernetes-networking topic)*
|
||||
- [Introduction to Azure Application Gateway for Containers (AGC)](https://blog.cloudtrooper.net/2025/02/28/application-gateway-for-containers-a-not-so-gentle-intro-1/) - *(Related to azure topic)*
|
||||
- [Four Methods to Access Azure Key Vault from Azure Kubernetes Service (AKS)](https://techcommunity.microsoft.com/blog/azureforisvandstartupstechnicalblog/four-methods-to-access-azure-key-vault-from-azure-kubernetes-service-aks/4376662) - *(Related to kubernetes-security topic)*
|
||||
- [Introduction to Azure Application Gateway for Containers (AGC)](https://blog.cloudtrooper.net/2025/02/28/application-gateway-for-containers-a-not-so-gentle-intro-1//) - *(Related to azure topic)*
|
||||
- [Four Methods to Access Azure Key Vault from Azure Kubernetes Service (AKS)](https://techcommunity.microsoft.com/discussions/azurepartners/four-methods-to-access-azure-key-vault-from-azure-kubernetes-service-aks/4376662) - *(Related to kubernetes-security topic)*
|
||||
|
||||
- [Cluster Addons 🌟](https://github.com/kubernetes-sigs/cluster-addons) With cluster addon operators, we are exploring a kubernetes-native way of managing addons using CRDs(Custom Resource Definitions) and controllers where the controllers encode how best to manage the addon. Installing and managing an addon could be as simple as creating a custom resource.
|
||||
|
||||
## K8Spin Operator. Kubernetes multi-tenant operator
|
||||
|
||||
- [K8Spin Operator 🌟](https://github.com/k8spin/k8spin-operator) Kubernetes multi-tenant operator. Enables multi-tenant capabilities in your Kubernetes Cluster. [We defined some small features to implement](https://github.com/k8spin/k8spin-operator/projects/1). If you know python & Kubernetes and want to contribute to this project, ping us!
|
||||
- [thenewstack.io: K8Spin Provides Multitenant Isolation for Kubernetes](https://thenewstack.io/k8spin-provides-multitenant-isolation-for-kubernetes/)
|
||||
- [Discover K8Spin open source software](https://k8spin.cloud/oss-projects/)
|
||||
- [K8Spin Operator 🌟](https://github.com/k8spin/k8spin-operator) Kubernetes multi-tenant operator. Enables multi-tenant capabilities in your Kubernetes Cluster. [We defined some small features to implement](https://github.com/k8spin/k8spin-operator). If you know python & Kubernetes and want to contribute to this project, ping us!
|
||||
- [thenewstack.io: K8Spin Provides Multitenant Isolation for Kubernetes](https://thenewstack.io/k8spin-provides-multitenant-isolation-for-kubernetes//)
|
||||
- [Discover K8Spin open source software](https://k8spin.cloud/oss-projects//)
|
||||
|
||||
## K8s KPIs with Kuberhealthy Operator
|
||||
|
||||
- [K8s KPIs with Kuberhealthy 🌟](https://kubernetes.io/blog/2020/05/29/k8s-kpis-with-kuberhealthy/) transforming Kuberhealthy into a Kubernetes operator for synthetic monitoring. This new ability granted developers the means to create their own Kuberhealthy check containers to synthetically monitor their applications and clusters. Additionally, we created a guide on how to easily install and use Kuberhealthy in order to capture some helpful synthetic [KPIs](https://kpi.org/KPI-Basics).
|
||||
- [K8s KPIs with Kuberhealthy 🌟](https://kubernetes.io/blog/2020/05/29/k8s-kpis-with-kuberhealthy//) transforming Kuberhealthy into a Kubernetes operator for synthetic monitoring. This new ability granted developers the means to create their own Kuberhealthy check containers to synthetically monitor their applications and clusters. Additionally, we created a guide on how to easily install and use Kuberhealthy in order to capture some helpful synthetic [KPIs](https://www.kpi.org/KPI-Basics/).
|
||||
|
||||
## Writing Kubernetes Operators and Controllers
|
||||
- [Kueue Release v0.14.0](https://github.com/kubernetes-sigs/kueue/releases/tag/v0.14.0) - This is a release note for Kueue, an open-source Kubernetes project designed for workload management and scheduling. Version v0.14.0 includes changes such as the removal of deprecated annotations related to ProvisioningRequest, which is important for users upgrading from previous versions. It also highlights the necessity for ProvisioningRequest reconcilers to be updated to avoid issues.
|
||||
- [AI Meets Terraform: Prompt Strategies for Test Generation](https://masterpoint.io/blog/ai-meets-tf-prompt-strategies-for-test-generation/) - *(Related to ai topic)*
|
||||
- [10 Real-World Kubernetes Troubleshooting Scenarios and Solutions](https://livingdevops.com/devops/10-real-world-kubernetes-troubleshooting-scenarios-and-solutions/) - *(Related to kubernetes-troubleshooting topic)*
|
||||
- [The Beginner’s Guide to the Ansible Inventory](https://www.packetcoders.io/the-beginners-guide-to-the-ansible-inventory/) - *(Related to ansible topic)*
|
||||
- [AI Meets Terraform: Prompt Strategies for Test Generation](https://masterpoint.io/blog/ai-meets-tf-prompt-strategies-for-test-generation//) - *(Related to ai topic)*
|
||||
- [10 Real-World Kubernetes Troubleshooting Scenarios and Solutions](https://livingdevops.com/devops/10-real-world-kubernetes-troubleshooting-scenarios-and-solutions//) - *(Related to kubernetes-troubleshooting topic)*
|
||||
- [The Beginner’s Guide to the Ansible Inventory](https://www.packetcoders.io/the-beginners-guide-to-the-ansible-inventory//) - *(Related to ansible topic)*
|
||||
|
||||
- [Kubernetes.io: Operator pattern](https://kubernetes.io/docs/concepts/extend-kubernetes/operator/)
|
||||
- [Kubernetes.io: Operator pattern](https://kubernetes.io/docs/concepts/extend-kubernetes/operator//)
|
||||
- [opensource.com: Build a Kubernetes Operator in 10 minutes with Operator SDK](https://opensource.com/article/20/3/kubernetes-operator-sdk)
|
||||
- [itnext.io: Testing the Operator SDK and making a prefetch mechanism for Kubernetes](https://itnext.io/testing-the-operator-sdk-and-making-a-prefetch-mechanism-for-kubernetes-7508577efdd7)
|
||||
- [magalix.com: Creating Custom Kubernetes Operators](https://www.magalix.com/blog/creating-custom-kubernetes-operators)
|
||||
- [medium.com: Writing Your First Kubernetes Operator](https://medium.com/faun/writing-your-first-kubernetes-operator-8f3df4453234)
|
||||
- [bmc.com: What Is a Kubernetes Operator?](https://www.bmc.com/blogs/kubernetes-operator/)
|
||||
- [Writing a Kubernetes Operator in Java Cheat Sheet](https://developers.redhat.com/cheat-sheets/writing-kubernetes-operator-java/)
|
||||
- [linuxera.org: Writing Operators using the Operator Framework SDK](https://linuxera.org/writing-operators-using-operator-framework/)
|
||||
- [openshift.com: 7 Best Practices for Writing Kubernetes Operators: An SRE Perspective](https://www.openshift.com/blog/7-best-practices-for-writing-kubernetes-operators-an-sre-perspective)
|
||||
- [linuxera.org: Writing Operators using the Operator Framework SDK](https://linuxera.org/writing-operators-using-operator-framework//)
|
||||
- [openshift.com: 7 Best Practices for Writing Kubernetes Operators: An SRE Perspective](https://www.redhat.com/en/blog/7-best-practices-for-writing-kubernetes-operators-an-sre-perspective)
|
||||
- [medium: From Zero to Kubernetes Operator](https://medium.com/@victorpaulo/from-zero-to-kubernetes-operator-dd06436b9d89) In this post you will learn how to build a simple Kubernetes Operator. The article starts with the main concepts and then continues with hands-on labs where you will create a Kubernetes Operator from the ground up.
|
||||
- [openshift.com: Build Your Kubernetes Operator With the Right Tool 🌟](https://www.openshift.com/blog/build-your-kubernetes-operator-with-the-right-tool) **Go-based operators are by far the most popular. That is why Go is probably the first option to consider.** The other good choice is Helm, especially if you already have a Helm chart for your software or you want to build your operator quickly and you don't need any complex [capability levels](https://operatorframework.io/operator-capabilities/). I'd leave Operator Frameworks or Bare Programming Language implementations only for the cases when keeping a single programming language in your organization is a priority.
|
||||
- [rookout.com: Lessons Learned When Building A Kubernetes Operator](https://www.rookout.com/blog/lessons-learned-when-building-a-kubernetes-operator)
|
||||
- [brennerm.github.io: Kubernetes operators with Python #1: Creating CRDs](https://brennerm.github.io/posts/k8s-operators-with-python-part-1.html)
|
||||
- [openshift.com: Build Your Kubernetes Operator With the Right Tool 🌟](https://www.redhat.com/en/blog/build-your-kubernetes-operator-with-the-right-tool) **Go-based operators are by far the most popular. That is why Go is probably the first option to consider.** The other good choice is Helm, especially if you already have a Helm chart for your software or you want to build your operator quickly and you don't need any complex [capability levels](https://operatorframework.io/operator-capabilities//). I'd leave Operator Frameworks or Bare Programming Language implementations only for the cases when keeping a single programming language in your organization is a priority.
|
||||
- [rookout.com: Lessons Learned When Building A Kubernetes Operator](https://www.dynatrace.com/solutions/observability-for-developers/)
|
||||
- [brennerm.github.io: Kubernetes operators with Python #1: Creating CRDs](https://shipit.dev/posts/k8s-operators-with-python-part-1.html)
|
||||
- [vivilearns2code.github.io: Writing Controllers For Kubernetes Resources](https://vivilearns2code.github.io/k8s/2021/03/11/writing-controllers-for-kubernetes-custom-resources.html)
|
||||
- [cloudark.medium.com: Writing Kubernetes Custom Controllers](https://cloudark.medium.com/kubernetes-custom-controllers-b6c7d0668fdf)
|
||||
- [developers.redhat.com: Managing stateful applications with Kubernetes Operators in Golang 🌟](https://developers.redhat.com/articles/2021/08/04/managing-stateful-applications-kubernetes-operators-golang) Explore this pattern by creating a Kubernetes Operator in Golang to keep a WordPress site up to date.
|
||||
@@ -243,7 +243,7 @@
|
||||
- [==kubernetes/sample-controller==](https://github.com/kubernetes/sample-controller) Repository for sample controller. Complements sample-apiserver
|
||||
- [betterprogramming.pub: Writing Custom Kubernetes Controller and Webhooks](https://betterprogramming.pub/writing-custom-kubernetes-controller-and-webhooks-141230820e9) Create a Kubernetes API, controller, validate webhooks, and test.
|
||||
- [betterprogramming.pub: How To Write Tests for Your Kubernetes Operator](https://betterprogramming.pub/write-tests-for-your-kubernetes-operator-d3d6a9530840)
|
||||
- [metalbear.co: Writing a Kubernetes Operator](https://metalbear.co/blog/writing-a-kubernetes-operator/)
|
||||
- [metalbear.co: Writing a Kubernetes Operator](https://metalbear.com/blog/writing-a-kubernetes-operator//)
|
||||
- [dev.to/hkhelil: Building a Kubernetes Operator with an NGINX CRD](https://dev.to/hkhelil/building-a-kubernetes-operator-with-an-nginx-crd-3lil)
|
||||
|
||||
## Tweets
|
||||
@@ -267,4 +267,4 @@
|
||||
<iframe width="560" height="315" src="https://www.youtube.com/embed/ha3LjlD6g7g" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
|
||||
|
||||
</center>
|
||||
- [Sharing a NVIDIA GPU Between Pods in Kubernetes](https://www.cloudnativedeepdive.com/sharing-a-nvidia-gpu-between-pods-in-kubernetes/) - *(Related to kubernetes-tools topic)*
|
||||
- [Sharing a NVIDIA GPU Between Pods in Kubernetes](https://www.cloudnativedeepdive.com/sharing-a-nvidia-gpu-between-pods-in-kubernetes//) - *(Related to kubernetes-tools topic)*
|
||||
Reference in New Issue
Block a user