Kubernetes: Difference between revisions
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Kubernetes, also known as K8s, is a container orchestration service by Google. | Kubernetes, also known as K8s, is a container orchestration service by Google. | ||
It supposedly has a harder learning curve than docker-swarm but is heavily inspired by Google's internal [https://research.google/pubs/pub43438/#:~:text=Google's%20Borg%20system%20is%20a,tens%20of%20thousands%20of%20machines. borg system]. | It supposedly has a harder learning curve than docker-swarm but is heavily inspired by Google's internal [https://research.google/pubs/pub43438/#:~:text=Google's%20Borg%20system%20is%20a,tens%20of%20thousands%20of%20machines. borg system]. | ||
==Getting Started== | |||
===Background=== | |||
Kubernetes runs applications across nodes which are physical or virtual machines.<br> | |||
Each node contains a kubelet process, a container runtime (e.g. Docker), and possibly one or more pods.<br> | |||
Pods contain resources needed to host your application including volumes and one or more containers. | |||
===Installation=== | |||
For local development, you can install [https://minikube.sigs.k8s.io/docs/start/ minikube].<br> | |||
Otherwise, install <code>kubeadm</code>. | |||
==kubectl== | |||
===pods=== | |||
<pre> | |||
kubectl get pods | |||
kubectl describe pods | |||
</pre> | |||
===proxy=== | |||
<pre> | |||
kubectl proxy | |||
</pre> | |||
===containers=== | |||
<pre> | |||
kubectl logs $POD_NAME | |||
kubectl exec -it $POD_NAME -- bash | |||
</pre> | |||
===service=== | |||
==Resources== | ==Resources== | ||
* [https://kubernetes.io/docs/tutorials/kubernetes-basics/ Kubernetes Basics] | |||
* [https://www.udacity.com/course/scalable-microservices-with-kubernetes--ud615 Scalable Microservices with Kubernetes Udacity Course] | * [https://www.udacity.com/course/scalable-microservices-with-kubernetes--ud615 Scalable Microservices with Kubernetes Udacity Course] | ||
** Lesson 2 is on Docker and lessons 3-4 are on Kubernetes. | ** Lesson 2 is on Docker and lessons 3-4 are on Kubernetes. | ||
Revision as of 01:33, 16 July 2021
Kubernetes, also known as K8s, is a container orchestration service by Google.
It supposedly has a harder learning curve than docker-swarm but is heavily inspired by Google's internal borg system.
Getting Started
Background
Kubernetes runs applications across nodes which are physical or virtual machines.
Each node contains a kubelet process, a container runtime (e.g. Docker), and possibly one or more pods.
Pods contain resources needed to host your application including volumes and one or more containers.
Installation
For local development, you can install minikube.
Otherwise, install kubeadm.
kubectl
pods
kubectl get pods kubectl describe pods
proxy
kubectl proxy
containers
kubectl logs $POD_NAME kubectl exec -it $POD_NAME -- bash
service
Resources
- Kubernetes Basics
- Scalable Microservices with Kubernetes Udacity Course
- Lesson 2 is on Docker and lessons 3-4 are on Kubernetes.