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Kubernetes, also known as K8s, is an open source system for managing [containerized applications] across multiple hosts. It provides basic mechanisms for the deployment, maintenance, and scaling of applications.

Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed.

etcd is a distributed reliable key-value store for the most critical data of a distributed system, with a focus on being:

Netdata is an open-source, real-time infrastructure monitoring platform. Monitor, detect, and act across your entire infrastructure.

SOPS is an editor of encrypted files that supports YAML, JSON, ENV, INI and BINARY formats and encrypts with AWS KMS, GCP KMS, Azure Key Vault, HuaweiCloud KMS, age, and PGP. (demo )

K3s is a fully conformant production-ready Kubernetes distribution with the following changes:

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. It provides a simple flat Layer 3 network with the ability to span multiple clusters in either a native routing or overlay mode.

Argo CD is a declarative GitOps continuous delivery tool for Kubernetes.

Crossplane is a framework for building cloud native control planes without needing to write code.

A reverse proxy that provides authentication with Google, Azure, OpenID Connect and many more identity providers.

A self-service engineering platform, Meshery , is the open source, cloud native manager that enables the design and management of all Kubernetes-based infrastructure and applications (multi-cloud).

OpenTofu lets you declaratively manage your cloud infrastructure.

An open source trusted cloud native registry project that stores, signs, and scans content.

Backstage is an open framework for building developer portals

Envoy is hosted by the Cloud Native Computing Foundation (CNCF). If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF.

Helm is a tool for managing Charts. Charts are packages of pre-configured Kubernetes resources.

💥💥💥 Jaeger v2 is out! Read the blog post and try it out.

A distributed, fast open-source graph database featuring horizontal scalability and high availability

minikube implements a local Kubernetes cluster on macOS, Linux, and Windows. minikube's primary goals are to be the best tool for local Kubernetes application development and to support all Kubernetes features that fit.

Rook is an open source cloud-native storage orchestrator for Kubernetes, providing the platform, framework, and support for Ceph storage to natively integrate with Kubernetes.

TiKV is an open-source, distributed, and transactional key-value database. Unlike other traditional NoSQL systems, TiKV not only provides classical key-value APIs, but also transactional APIs with ACID compliance.

CoreDNS is a DNS server/forwarder, written in Go, that chains plugins. Each plugin performs a (DNS) function.

Automatically provision and manage TLS certificates in Kubernetes

Kubescape is an open-source Kubernetes security platform for your IDE, CI/CD pipelines, and clusters. It includes risk analysis, security, compliance, and misconfiguration scanning, saving Kubernetes users and administrators precious time, effort, and resources.

WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.

Velero (formerly Heptio Ark) gives you tools to back up and restore your Kubernetes cluster resources and persistent volumes. You can run Velero with a public cloud platform or on-premises.

Slim(toolkit): Don't change anything in your container image and minify it by up to 30x (and for compiled languages even more) making it secure too! (free and open source)

containerd is an industry-standard container runtime with an emphasis on simplicity, robustness, and portability.

If you are not already using ingress-nginx, you should not be deploying it as it is not being developed. Instead you should identify a Gateway API implementation and use it.

Thanos is a set of components that can be composed into a highly available metric system with unlimited storage capacity, which can be added seamlessly on top of existing Prometheus deployments.