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Kubernetes

Certified Kubernetes Offerings

The State of Cloud-Native Development. Details data on the use of Kubernetes, serverless computing and more

Kubernetes open-source container-orchestation

[![Kubernetes architecture](images/kubernetes-pod-creation.png)](https://www.padok.fr/en/blog/kubernetes-architecture-clusters)

10 most common mistakes{: style="width:60%"}

5 Open-source projects that make #Kubernetes even better{: style="width:80%"}

kubernetes arch multicloud hybrid{: style="width:70%"}


Kubernetes Releases

Namespaces

Kubernetes Best Practices and Tips

Disruptions

Cost Estimation Strategies

Kubernetes Resource and Capacity Management

Kubernetes Monitoring

Logging in Kubernetes

  • papertrail.com: Quick and Easy Way to Implement Kubernetes Logging The SolarWinds® Papertrail™ team is excited to announce SolarWinds rKubeLog, an open-source project designed to streamline Kubernetes logging. rKubeLog allows you to forward logs to Papertrail from within a Kubernetes cluster without using a daemon or setting up application-level logging or a logging sidecar.

Health Checks

Architecting Kubernetes clusters

Templating YAML in Kubernetes with real code. YQ YAML processor

Kubernetes Limits

Kube Scheduler

Kubernetes Knowledge Hubs

Kubectl commands

Kubectl Cheat Sheets

Kubectl explain

for r in $(kubectl api-resources|grep -v ^N|awk '{print $1}');do kubectl explain $r --recursive;done

Kubectl Autocomplete

source <(kubectl completion bash) # setup autocomplete in bash into the current shell, bash-completion package should be installed first.
echo "source <(kubectl completion bash)" >> ~/.bashrc # add autocomplete permanently to your bash shell.

You can also use a shorthand alias for kubectl that also works with completion:

alias k=kubectl
complete -F __start_kubectl k

List all resources and sub resources that you can constrain with RBAC

  • kind of a handy way to see all thing things you can affect with Kubernetes RBAC. This will list all resources and sub resources that you can constrain with RBAC. If you want to see just subresources append "| grep {name}/":
kubectl get --raw /openapi/v2  | jq '.paths | keys[]'

Copy a configMap in kubernetes between namespaces

  • Copy a configMap in kubernetes between namespaces with deprecated "--export" flag:
kubectl get configmap --namespace=<source> <configmap> --export -o yaml | sed "s/<source>/<dest>/" | kubectl apply --namespace=<dest> -f -

kubectl get configmap <configmap-name> --namespace=<source-namespace> -o yaml | sed ‘s/namespace: <from-namespace>/namespace: <to-namespace>/’ | kubectl create -f

Copy secrets in kubernetes between namespaces

kubectl get secret <secret-name> --namespace=<source> -o yaml | sed ‘s/namespace: <from-namespace>/namespace: <to-namespace>/’ | kubectl create -f

Export resources with kubectl and python

Kubectl Alternatives

Manage Kubernetes (K8s) objects with Ansible Kubernetes Module

Jenkins Kubernetes Plugins

Self Service Kubernetes Namespaces

Client Libraries for Kubernetes

Helm Kubernetes Tool

Kubernetes Development Tools. Kubernetes clients and dashboards

Okteto local kubernetes development

Lens Kubernetes IDE

  • Lens Kubernetes IDE 🌟 Lens is the only IDE you’ll ever need to take control of your Kubernetes clusters. It's open source and free. Download it today!

lens ide

Kubenav

  • kubenav is the navigator for your Kubernetes clusters right in your pocket. kubenav is a mobile, desktop and web app to manage Kubernetes clusters and to get an overview of the status of your resources.

Skaffold. Local Kubernetes Development

Kind

  • Kind is a tool for running local Kubernetes clusters using Docker container “nodes”. kind was primarily designed for testing Kubernetes itself, but may be used for local development or CI.

Autoscaling

Cluster Autoscaler Kubernetes Tool

HPA and VPA

Cluster Autoscaler and Helm

Cluster Autoscaler and DockerHub

Cluster Autoscaler in GKE, EKS, AKS and DOKS

Cluster Autoscaler in OpenShift

Kubernetes Load Testing and High Load Tuning

Extending Kubernetes

Adding Custom Resources. Extending Kubernetes API with Kubernetes Resource Definitions. CRD vs Aggregated API

  • Custom Resources
  • itnext.io: CRD is just a table in Kubernetes
  • Use a custom resource (CRD or Aggregated API) if most of the following apply:
    • You want to use Kubernetes client libraries and CLIs to create and update the new resource.
    • You want top-level support from kubectl; for example, kubectl get my-object object-name.
    • You want to build new automation that watches for updates on the new object, and then CRUD other objects, or vice versa.
    • You want to write automation that handles updates to the object.
    • You want to use Kubernetes API conventions like .spec, .status, and .metadata.
    • You want the object to be an abstraction over a collection of controlled resources, or a summarization of other resources.
  • Kubernetes provides two ways to add custom resources to your cluster:
    • CRDs are simple and can be created without any programming.
    • API Aggregation requires programming, but allows more control over API behaviors like how data is stored and conversion between API versions.
  • Kubernetes provides these two options to meet the needs of different users, so that neither ease of use nor flexibility is compromised.
  • Aggregated APIs are subordinate API servers that sit behind the primary API server, which acts as a proxy. This arrangement is called API Aggregation (AA). To users, it simply appears that the Kubernetes API is extended.
  • CRDs allow users to create new types of resources without adding another API server. You do not need to understand API Aggregation to use CRDs.
  • Regardless of how they are installed, the new resources are referred to as Custom Resources to distinguish them from built-in Kubernetes resources (like pods).

Krew, a plugin manager for kubectl plugins

OpenKruise/Kruise

Crossplane, a Universal Control Plane API for Cloud Computing. Crossplane Workloads Definitions

Kubernetes Community

Community Forums

Kubernetes Special Interest Groups (SIGs)

Kubernetes SIG's Repos

Kubectl Plugins


Kubectl Plugins and Tools. Kubernetes Extensions and Projects
  • kubeonoff is a simple web UI for managing Kubernetes deployments.
  • ipvs-node-controller is the kubernetes controller that solves External-IP (Load Balancer IP) issue with IPVS proxy mode.
  • kubeonoff A simple web UI for managing Kubernetes deployments. Kubeonoff is a small web UI that allows to quickly stop/start/restart pods. Basically it's for non-developers to manage k8s objects per namespace.
  • Maistra 🌟 is an opinionated distribution of Istio designed to work with Openshift. It combines Kiali, Jaeger, and Prometheus into a platform managed according to the OperatorHub lifecycle.
  • custom-pod-autoscaler A Custom Pod Autoscaler is a Kubernetes autoscaler that is customised and user created. The Custom Pod Autoscaler framework allows easier and faster development of Kubernetes autoscalers.
  • Kubevol 🌟 allows you to audit all your Kubernetes pods for an attached volume or see all the volumes attached to each pod by a specific type (eg: ConfigMap, Secret).
  • kubectl-fuzzy 🌟 uses fzf(1)-like fuzzy-finder to do partial or fuzzy search of Kubernetes resources. Instead of specifying full resource names to kubectl commands, you can choose them from an interactive list that you can filter by typing a few characters.
  • Setec 🌟 Setec (pronounced see-tek) is a utility tool that encrypts and decrypts secrets that are managed by Bitnami's Sealed Secrets.
  • Kompose (Kubernetes + Compose) 🌟 kompose is a tool to help users who are familiar with docker-compose move to Kubernetes. kompose takes a Docker Compose file and translates it into Kubernetes resources. kompose is a convenience tool to go from local Docker development to managing your application with Kubernetes. Transformation of the Docker Compose format to Kubernetes resources manifest may not be exact, but it helps tremendously when first deploying an application on Kubernetes.
  • kalm.dev 🌟 Easily deploy and manage applications on Kubernetes. Get what you want out of Kubernetes without having to write and maintain a ton of custom tooling. Deploy apps, handle requests, and hook up CI/CD, all through an intuitive web interface.
  • Kev Develop Kubernetes apps iteratively with Docker-Compose. Kev helps developers port and iterate Docker Compose apps onto Kubernetes. It understands the Docker Compose application topology and prepares it for deployment in (multiple) target environments, with minimal user input. We leverage the Docker Compose specification and allow for target-specific configurations to be applied to each component of the application stack, simply.
  • Synator Kubernetes Secret and ConfigMap synchronizer 🌟 Synator synchronize your Secrets and ConfigMaps with your desired namespaces
  • kubes 🌟 is a Kubernetes Deployment Tool. It builds the docker image, creates the Kubernetes YAML, and runs kubectl apply.
  • Kubernetes DaemonSet that enables a direct shell on each Node using SSH to localhost Learn how you can use a DaemonSet to expose an SSH shell on each node of your cluster (even if you don't have SSH installed). I run several K8S cluster on EKS and by default do not setup inbound SSH to the nodes. Sometimes I need to get into each node to check things or run a one-off tool. Rather than update my terraform, rebuild the launch templates and redeploy brand new nodes, I decided to use kubernetes to access each node directly.
  • NS Killer A Kubernetes project to kill all namespace living over X times. Quite useful when auto-generated development environments on the fly and give them a lifecycle out-of-the-box from Kubernetes or even Helm. You might find it useful if auto-generate development environments on the fly and want to remove old ones on a schedule.
  • kubeswitch: Kubernetes Version Switcher 🌟 Easily switch kubectl binary versions.
  • Move2Kube 🌟 a tool that can help users migrate from Cloud Foundry and Docker Swarm to Kubernetes. Move2Kube is a command-line tool that accelerates the process of re-platforming to Kubernetes/Openshift. It does so by analysing the environment and source artifacts, and asking guidance from the user when required.
  • kubectl build (formerly known as kubectl-kaniko) Kubectl build mimics the kaniko executor, but performs building on your Kubernetes cluster side. This allows you to simply build your local dockerfiles remotely without leaving your cozy environment.
  • Kubei 🌟 is a vulnerabilities scanning tool that allows users to get an accurate and immediate risk assessment of their kubernetes clusters. Kubei scans all images used in a Kubernetes cluster including images of application pods and system pods
  • Shell-operator is a tool for running event-driven scripts in a Kubernetes cluster. Shell-operator provides an integration layer between Kubernetes cluster events and shell scripts.
  • sinker is a tool to sync images from one container registry to another This is useful in cases when you rely on images that exist in a public container registry, but need to pull from a private registry.
  • ecrcp aims to mimic cp command in Linux systems as closely as possible in its implementation. Consider ecrcp to be the cp equivalent to copy container images from docker hub to ECR.
  • Checkov 🌟 is a static code analysis tool for infrastructure-as-code. It scans cloud infrastructure provisioned using Terraform, Cloudformation, Kubernetes, Serverless or ARM Templates and detects security and compliance misconfigurations.
  • Cluster Cloner 🌟 Reads the Kubernetes clusters in one location (optionally filtering by labels) and clones them into another (or just outputs JSON as a dry run), to/from AWS, GCP, and Azure.
  • kubectl-eksporter 🌟 A simple Ruby-script to export k8s resources, and removes a pre-defined set of fields for later import.
  • kubectl-neat 🌟 Remove clutter from Kubernetes manifests to make them more readable.
  • medium: 4 Simple Kubernetes Terminal Customizations to Boost Your Productivity
  • kubeswitch: Kubernetes Version Switcher Easily switch kubectl binary versions.
  • Move2Kube 🌟 Move2Kube is a command-line tool that accelerates the process of re-platforming to Kubernetes/Openshift. It does so by analysing the environment and source artifacts, and asking guidance from the user when required. This tool that can help users migrate from Cloud Foundry and Docker Swarm to Kubernetes.
  • skopeo 🌟 Use skopeo to copy images between registries
  • junit5-kubernetes aims at using a kubernetes pod directly form your junit5 test classes.
  • mbuffett.com: Replacing ngrok with ktunnel
  • seaworthy: A CLI to verify #Kubernetes resource health !! 🌟 Post-apply check to verify your K8s resources are Seaworthy
  • kVDI A Kubernetes-native Virtual Desktop Infrastructure.
  • kcg 🌟 is a command line tool that lets you create kubeconfig files. The user can interactively choose a namespace and service account and generate a config file with token authentication that has same RBAC permissions assigned to chosen service account.
  • Compass 🌟 Quickly Pinpoint Errors in your Kubernetes Deployment.
  • kubernetes-dashboard-iam-proxy An in-browser version of aws eks get-token to enable cluster authentication using IAM for the Kubernetes dashboard.
  • kube-vip is a Load-Balancer for both inside and outside a Kubernetes cluster.
  • Gitkube 🌟 is a tool for building and deploying Docker images on Kubernetes using git push. After a simple initial setup, users can simply keep git push-ing their repos to build and deploy to Kubernetes automatically.
  • vesion-checker is a Kubernetes utility for observing the current versions of images running in the cluster, as well as the latest available upstream. These checks get exposed as Prometheus metrics to be viewed on a dashboard, or soft alert cluster operators.
  • Descheduler for Kubernetes 🌟 -> wecloudpro.com: Balance your Kubernetes cluster
  • kubediff 🌟 is a tool for Kubernetes to show you the differences between your running configuration and your version controlled configuration.
  • awslabs/karpenter Karpenter is a metrics-driven autoscaler built for Kubernetes and can run in any Kubernetes cluster anywhere. It's performant, extensible, and can autoscale anything that implements the Kubernetes scale subresource.
  • ekglue - Envoy/Kubernetes glue ekglue is a projects that facilitates connecting Kubernetes and Envoy, allowing Envoy to read Kubernetes services and endpoints as clusters (via CDS) and endpoints (via EDS).
  • salesforce/Craft CRAFT helps you to create Kubernetes Operators in a robust and generic way for any resource, letting developers focus on CRUD operations of resource management in a Dockerfile.
  • hyscale 🌟 HyScale takes a declarative definition of your service config and it generates Dockerfile, Container Image, Kubernetes Manifests (YAMLs) and deploys to any Kubernetes Cluster.
  • kubectl-reap is a kubectl plugin that deletes unused Kubernetes resources 🌟
  • KubeLinter 🌟 is a static analysis tool that checks Kubernetes YAML files and Helm charts to ensure the applications represented in them adhere to best practices.
  • KRD: Kubernetes Reference Deployment krd offers a reference for deploying a Kubernetes cluster. Its ansible playbooks allow to provision a deployment on Bare-metal or Virtual Machines
  • kubeshell is a command line tool to interactively shell in to (and out of) kubernetes pods.
  • k8s-harness 🌟 lets you create a disposable Kubernetes cluster with vagrant and Ansible to test your app in a prod-like environment.
  • Secret backup operator is an operator designed to backup secrets on a Kubernetes cluster. Backup happens when secrets are modified.

Enforcing Policies and governance for kubernetes workloads with Conftest

Kubernetes Backup and Migrations

Backup with Velero

Kubernetes Troubleshooting

Debugging Techniques and Strategies. Debugging with ephemeral containers

[![learnk8s debug your pods](images/learnk8s_debug_your_pods.png){: style="width:30%"}](https://learnk8s.io/troubleshooting-deployments)

THREAD: How to quarantine a Pod in Kubernetes.

This technique helps you with debugging running Pods in production.

The Pod is detached from the Service (no traffic), and you can troubleshoot it live.

Let's get started! pic.twitter.com/E7AUh2ylM7

— Daniele Polencic (@danielepolencic) June 24, 2020
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

THREAD: How to gracefully shut down Pods without dropping production traffic in Kubernetes

If you've ever noticed dropped connection after a rolling upgrade, this thread digs into the details.

Let's start: 𝘸𝘩𝘢𝘵 𝘩𝘢𝘱𝘱𝘦𝘯𝘴 𝘸𝘩𝘦𝘯 𝘢 𝘗𝘰𝘥 𝘪𝘴 𝘥𝘦𝘭𝘦𝘵𝘦𝘥? pic.twitter.com/jS5litVUlw

— Daniele Polencic (@danielepolencic) July 6, 2020
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

THREAD: How does the scheduler work in Kubernetes?

The scheduler is in charge of deciding where your pods are deployed in the cluster.

It might sound like an easy job, but it's rather complicated!

Let's dive into it. pic.twitter.com/iC1vnargc4

— Daniele Polencic (@danielepolencic) September 24, 2020
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

Kubernetes Tutorials

THREAD: What happens when you create a Pod in Kubernetes?

Spoiler: a surprisingly simple task reveals a complicated workflow that touches several components in the cluster. pic.twitter.com/SNEufo0lBe

— Daniele Polencic (@danielepolencic) August 6, 2020
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

Online Training

Famous Kubernetes resources of 2019

Famous Kubernetes resources of 2020

K8s Diagrams

Kubernetes Patterns

Top 10 Kubernetes patterns

e-Books

Famous Kubernetes resources of 2019

[![Kubernetes: Up and Running](images/kubernetes_up_running_kelsey_hightower.gif)](http://shop.oreilly.com/product/0636920223788.do)

Kubernetes Patterns eBooks

Kubernetes Operators

K8Spin Operator. Kubernetes multi-tenant operator

Flux. The GitOps Operator for Kubernetes

K8s KPIs with Kuberhealthy Operator

  • 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.

Writing Kubernetes Operators

Kubernetes Networking

<script async class="speakerdeck-embed" data-id="9251193501114da199d70b2a679c552f" data-ratio="1.77777777777778" src="//speakerdeck.com/assets/embed.js"></script>

Kubernetes Ingress Specification

Xposer Kubernetes Controller To Manage Ingresses

  • Xposer 🌟 A Kubernetes controller to manage (create/update/delete) Kubernetes Ingresses based on the Service
    • Problem: We would like to watch for services running in our cluster; and create Ingresses and generate TLS certificates automatically (optional)
    • Solution: Xposer can watch for all the services running in our cluster; Creates, Updates, Deletes Ingresses and uses certmanager to generate TLS certificates automatically based on some annotations.

Software-Defined IP Address Management (IPAM)

  • IP Address Management (IPAM)
  • fusionlayer.com: Software-Defined IP Address Management (IPAM)
    • Cloud computing and service automation are changing the way in which applications and data are being delivered and consumed. The existing 30-year-old networking model is failing to keep up with the automated service architectures and the Internet of Things (IoT) based on end-to-end automation.
    • To facilitate the migration to cloud-era computing, service providers and data centers must add networking into the automated service workflows. This requires agility and elasticity that traditional networking products are not designed to provide. As IT environments of tomorrow involve a plethora of orchestrators and controllers spinning up services and applications inside shared networks, they all must be managed and provisioned by a unified solution authoritative for all network-related information.

CNI Container Networking Interface

List of existing CNI Plugins (IPAM)

[![kubernetes sdn solutions](images/kubernetes_sdn_solutions.png)](https://thenewstack.io/tigera-aims-ease-connectivity-pain-kubernetes/)

Project Calico

DNS Service with CoreDNS

Kubernetes Node Local DNS Cache

Kubernetes Sidecars

Kubernetes Security

RBAC

Admission Control

Security Best Practices Across Build, Deploy, and Runtime Phases

  • Kubernetes Security 101: Risks and 29 Best Practices 🌟
  • Build Phase:
    1. Use minimal base images
    2. Don’t add unnecessary components
    3. Use up-to-date images only
    4. Use an image scanner to identify known vulnerabilities
    5. Integrate security into your CI/CD pipeline
    6. Label non-fixable vulnerabilities
  • Deploy Phase:
    1. Use namespaces to isolate sensitive workloads
    2. Use Kubernetes network policies to control traffic between pods and clusters
    3. Prevent overly permissive access to secrets
    4. Assess the privileges used by containers
    5. Assess image provenance, including registries
    6. Extend your image scanning to deploy phase
    7. Use labels and annotations appropriately
    8. Enable Kubernetes role-based access control (RBAC)
  • Runtime Phase:
    1. Leverage contextual information in Kubernetes
    2. Extend vulnerability scanning to running deployments
    3. Use Kubernetes built-in controls when available to tighten security
    4. Monitor network traffic to limit unnecessary or insecure communication
    5. Leverage process whitelisting
    6. Compare and analyze different runtime activity in pods of the same deployments
    7. If breached, scale suspicious pods to zero
[![kubernetes security controls landscape](images/kubernetes-security-controls-landscape.jpg)](https://www.stackrox.com/post/2020/05/kubernetes-security-101/)

Kubernetes Authentication and Authorization

Kubernetes Authentication Methods

Kubernetes supports several authentication methods out-of-the-box, such as X.509 client certificates, static HTTP bearer tokens, and OpenID Connect.

X.509 client certificates

Static HTTP Bearer Tokens

OpenID Connect

Implementing a custom Kubernetes authentication method

Pod Security Policies (SCCs - Security Context Constraints in OpenShift)

EKS Security

Kubernetes Scheduling and Scheduling Profiles

Assigning Pods to Nodes. Pod Affinity and Anti-Affinity

Pod Topology Spread Constraints and PodTopologySpread Scheduling Plugin

Kubernetes etcd

Kubernetes Storage

Kubernetes Volumes Guide

  • Filesystem vs Volume vs Persistent Volume 🌟
  • This is a guide that covers:
    • How to set up and use volumes in Kubernetes
    • What are persistent volumes, and how to use them
    • How to use an NFS volume
    • Shared data and volumes between pods

ReadWriteMany PersistentVolumeClaims

Non-production Kubernetes Local Installers

Kubernetes in Public Cloud

GKE vs EKS vs AKS

AWS EKS (Hosted/Managed Kubernetes on AWS)

GCP and GKE

Tools for multi-cloud Kubernetes management

On-Premise Production Kubernetes Cluster Installers

Comparative Analysis of Kubernetes Deployment Tools

Deploying Kubernetes Cluster with Kops

  • GitHub: Kubernetes Cluster with Kops
  • Kubernetes.io: Installing Kubernetes with kops
  • Minikube and docker client are great for local setups, but not for real clusters. Kops and kubeadm are tools to spin up a production cluster. You don't need both tools, just one of them.
  • On AWS, the best tool is kops. Since AWS EKS (hosted kubernetes) is currently available, this is the preferred option (you don't need to maintain the masters).
  • For other installs, or if you can't get kops to work, you can use kubeadm.
  • Setup kops in your windows with virtualbox.org and vagrantup.com . Once downloaded, to type a new linux VM, just spin up ubuntu via vagrant in cmd/powershell and run kops installer:
C:\ubuntu> vagrant init ubuntu/xenial64
C:\ubuntu> vagrant up
C:\ubuntu> vagrant ssh-config
C:\ubuntu> vagrant ssh

$ curl -LO https://github.com/kubernetes/kops/releases/download/$(curl -s https://api.github.com/repos/kubernetes/kops/releases/latest | grep tag_name | cut -d '"' -f 4)/kops-linux-amd64
$ chmod +x kops-linux-amd64
$ sudo mv kops-linux-amd64 /usr/local/bin/kops

Deploying Kubernetes Cluster with Kubeadm

Deploying Kubernetes Cluster with Ansible

kube-aws Kubernetes on AWS

Kubespray

Conjure up

WKSctl

Terraform (kubernetes the hard way)

Caravan

ClusterAPI

Microk8s

k8s-tew

  • k8s-tew Kubernetes is a fairly complex project. For a newbie it is hard to understand and also to use. While Kelsey Hightower’s Kubernetes The Hard Way, on which this project is based, helps a lot to understand Kubernetes, it is optimized for the use with Google Cloud Platform.

Kubernetes Distributions

Red Hat OpenShift

Rancher

Weave Kubernetes Platform

Ubuntu Charmed Kubernetes

VMware Kubernetes Tanzu and Project Pacific

KubeAcademy Pro (free training)

Kontena Pharos

Mirantis Docker Enterprise with Kubernetes and Docker Swarm

  • Mirantis Docker Enterprise 3.1+ with Kubernetes
  • Docker Enterprise 3.1 announced. Features:
    • Istio is now built into Docker Enterprise 3.1!
    • Comes with Kubernetes 1.17. Kubernetes on Windows capability.
    • Enable Istio Ingress for a Kubernetes cluster with the click of a button
    • Intelligent defaults to get started quickly
    • Virtual services supported out of the box
    • Inbuilt support for GPU Orchestration
    • Launchpad CLI for Docker Enterprise deployment & upgrades

Mirantis k0s

Cloud Development Kit (CDK) for Kubernetes

  • cdk8s.io 🌟 Define Kubernetes apps and components using familiar languages. cdk8s is an open-source software development framework for defining Kubernetes applications and reusable abstractions using familiar programming languages and rich object-oriented APIs. cdk8s apps synthesize into standard Kubernetes manifests which can be applied to any Kubernetes cluster.
  • github.com/awslabs/cdk8s

AWS Cloud Development Kit (AWS CDK)

  • AWS: Introducing CDK for Kubernetes 🌟
  • Traditionally, Kubernetes applications are defined with human-readable, static YAML data files which developers write and maintain. Building new applications requires writing a good amount of boilerplate config, copying code from other projects, and applying manual tweaks and customizations. As applications evolve and teams grow, these YAML files become harder to manage. Sharing best practices or making updates involves manual changes and complex migrations.
  • YAML is an excellent format for describing the desired state of your cluster, but it is does not have primitives for expressing logic and reusable abstractions. There are multiple tools in the Kubernetes ecosystem which attempt to address these gaps in various ways:
  • We realized this was exactly the same problem our customers had faced when defining their applications through CloudFormation templates, a problem solved by the AWS Cloud Development Kit (AWS CDK), and that we could apply the same design concepts from the AWS CDK to help all Kubernetes users.

SpringBoot with Docker

Docker in Docker

Serverless with OpenFaas and Knative

[![Serverless](images/from-monolith-to-serverless.jpg)](https://www.xenonstack.com/blog/serverless-openfaas-java/)

Multi-Cluster Federation. Hybrid Cloud Setup Tools

KubeFed

KubeCarrier

Red Hat Operator Lifecycle Manager (OLM)

  • Red Hat OLM operator-lifecycle-manager is a management framework for extending Kubernetes with Operators. OLM extends Kubernetes to provide a declarative way to install, manage, and upgrade Operators and their dependencies in a cluster.

Crossplane

Istio Service Mesh

Kubernetes interview questions

Spanish Kubernetes Blogs

Container Ecosystem

Kubernetes components

Container Flowchart

[![Container flowchart](images/container_flowchart.jpg)](https://searchcloudcomputing.techtarget.com/tip/Weigh-the-pros-and-cons-of-managed-Kubernetes-services)

MEGATHREAD

Learn Kubernetes one Twitter thread at the time!

Below you can find a collection of threads about Kubernetes and Kubernetes-related tech!

I regularly add more, so you can follow me or @learnk8s for more updates! pic.twitter.com/0ingxHn9vx

— Daniele Polencic (@danielepolencic) August 26, 2020
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

Kubernetes Scripts

Spot instances in Kubernetes

Pixie. Instantly troubleshoot applications on Kubernetes

Videos



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