## kubernetes

<br>

### tl; dr

<br>

1. a **kubernetes cluster** consists of nodes (similar to servers) 
2. **nodes** run **pods**, which are collections of **docker containers**
3. **containers** in a pod share the same network
4. **deployment** is a kubernetes object responsible for launching and maintaining pods
6. **services** objects allow pods to communicate with other pods


<br>

---

### examples in this repository

<br>

* **[spin up a node server example](node-server-example)**
* **[using kustomize for deployment](kustomize)**
* **[using python cdk for deployment](python-cdk)**


<br>

---

### external resources

<br>

##### learning K8s

* [kubelabs](https://github.com/collabnix/kubelabs)
* [scalable microservices](https://www.udacity.com/course/scalable-microservices-with-kubernetes--ud615)

##### tools


- [minikube](https://github.com/kubernetes/minikube) implements a local Kubernetes cluster on macOS, Linux, and Windows. You can install it following [this instructions](https://minikube.sigs.k8s.io/docs/start/)
- [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/) is a command line interface for running commands against Kubernetes clusters
- [kubectx](https://github.com/ahmetb/kubectx) is a tool to switch between k8s contexts
- [k14s](https://k14s.io/): Kubernetes Tools that follow Unix philosophy to be simple, and composable

##### tutorials


* [Google's K8s 101](https://techdevguide.withgoogle.com/paths/cloud/sequence-2/kubernetes-101-pods-nodes-containers-and-clusters/#!)
* [K8s Bootcamp](https://kubernetesbootcamp.github.io/kubernetes-bootcamp/)
* [K8s the Hard Way](https://github.com/kelseyhightower/kubernetes-the-hard-way#labs).
* [Kubernetes Community Overview and Contributions Guide](https://docs.google.com/presentation/d/1JqcALpsg07eH665ZXQrIvOcin6SzzsIUjMRRVivrZMg/edit?usp=sharing)
* [An Intro to Google’s Kubernetes and How to Use It](http://www.ctl.io/developers/blog/post/what-is-kubernetes-and-how-to-use-it/)
* [Getting Started on Kubernetes](http://containertutorials.com/get_started_kubernetes/index.html)
* [Kubernetes: The Future of Cloud Hosting](https://github.com/meteorhacks/meteorhacks.github.io/blob/master/_posts/2015-04-22-learn-kubernetes-the-future-of-the-cloud.md)
* [Kubernetes by Google](http://thevirtualizationguy.wordpress.com/tag/kubernetes/)
* [Application Containers: Kubernetes and Docker from Scratch](http://keithtenzer.com/2015/06/01/application-containers-kubernetes-and-docker-from-scratch/)
* [Learn the Kubernetes Key Concepts in 10 Minutes](http://omerio.com/2015/12/18/learn-the-kubernetes-key-concepts-in-10-minutes/)
* [The Children's Illustrated Guide to Kubernetes](https://kubernetes.io/blog/2016/06/illustrated-childrens-guide-to-kubernetes/)
* [The ‘kubectl run’ command](http://medium.com/@mhausenblas/the-kubectl-run-command-27c68de5cb76#.mlwi5an7o) 
* [Docker Kubernetes Lab Handbook](https://github.com/xiaopeng163/docker-k8s-lab)
* [Curated Resources for Kubernetes](https://hackr.io/tutorials/learn-kubernetes)
* [Kubernetes Comic](https://cloud.google.com/kubernetes-engine/kubernetes-comic/)
* [Kubernetes 101: Pods, Nodes, Containers, and Clusters](https://medium.com/google-cloud/kubernetes-101-pods-nodes-containers-and-clusters-c1509e409e16)
* [An Introduction to Kubernetes](http://www.digitalocean.com/community/tutorials/an-introduction-to-kubernetes).
* [Kubernetes and everything else - Introduction to Kubernetes and it's context](https://rinormaloku.com/introduction-application-architecture/)
* [Installation on Centos 7](http://severalnines.com/blog/installing-kubernetes-cluster-minions-centos7-manage-pods-services)
* [Setting Up a Kubernetes Cluster on Ubuntu 18.04](https://mherman.org/blog/2018/08/20/setting-up-a-kubernetes-cluster-on-ubuntu/)
* [Cloud Native Landscape](https://landscape.cncf.io/)
* [Kubernetes Tutorials by Kubernetes Team](http://kubernetes.io/docs/tutorials/)
* [Kubernetes By Example by OpenShift Team](http://kubernetesbyexample.com)
* [Kubernetes Tutorial by Tutorialspoint](http://www.tutorialspoint.com/kubernetes/)
* [Imperative vs. Declarative — a Kubernetes Tutorial](https://medium.com/payscale-tech/imperative-vs-declarative-a-kubernetes-tutorial-4be66c5d8914)

##### MOOCs

* [Learn Kubernetes Youtube series](https://www.youtube.com/playlist?list=PL34sAs7_26wNBRWM6BDhnonoA5FMERax0)
* [Scalable Microservices with Kubernetes at Udacity](http://in.udacity.com/course/scalable-microservices-with-kubernetes--ud615)
* [Introduction to Kubernetes at edX](http://www.edx.org/course/introduction-kubernetes-linuxfoundationx-lfs158x)

##### articles

* [Digital Ocean: How we launched our marketplace using k8s](https://blog.digitalocean.com/how-we-launched-our-marketplace-using-digitalocean-kubernetes-part-1/)
* [Are you Ready to Manage your Infrastructure like Google?](http://blog.jetstack.io/blog/k8s-getting-started-part1/)
* [Google is years ahead when it comes to the cloud, but it's happy the world is catching up](http://www.businessinsider.in/Google-is-years-ahead-when-it-comes-to-the-cloud-but-its-happy-the-world-is-catching-up/articleshow/47793327.cms)
* [Top Reasons Businesses Should Move to Kubernetes Now](http://supergiant.io/blog/top-reasons-businesses-should-move-to-kubernetes-now) 

##### prometheus operator

* [Monitor external services with the prometheus operator](https://jpweber.io/blog/monitor-external-services-with-the-prometheus-operator/)
* [Prometheus Operator — How to monitor an external service](https://devops.college/prometheus-operator-how-to-monitor-an-external-service-3cb6ac8d5acb)