k3s install

1. Where is K3s installed?
2. How do I get K3s URL?
3. Does K3s install Docker?
4. What does K3s remove?
5. What does K3s stand for?
6. What do you run on K3s?
7. How do you stop K3s?
8. What is a K3s node?
9. What is k3 Kubernetes?
10. What is Docker installation?
11. Can Containerd run Docker images?
12. What is the difference between K3s and K8s?

Where is K3s installed?

The script is created on your node at /usr/local/bin/k3s-uninstall.sh (or as k3s-agent-uninstall.sh ).

How do I get K3s URL?

The K3s agent will register with the K3s server listening at the supplied URL. The value to use for K3S_TOKEN is stored at /var/lib/rancher/k3s/server/node-token on your server node. Note: Each machine must have a unique hostname.

Does K3s install Docker?

k3d is a small program made for running a K3s cluster in Docker. K3s is a lightweight, CNCF-certified Kubernetes distribution and Sandbox project. ... k3d uses a Docker image built from the K3s repository to spin up multiple K3s nodes in Docker containers on any machine with Docker installed.

What does K3s remove?

If you installed K3s using the installation script, a script to uninstall K3s was generated during installation. Uninstalling K3s deletes the cluster data and all of the scripts. To restart the cluster with different installation options, re-run the installation script with different flags.

What does K3s stand for?

K3s is a fully CNCF (Cloud Native Computing Foundation) certified Kubernetes offering. This means that you can write your YAML to operate against a regular "full-fat" Kubernetes and they'll also apply against a k3s cluster.

What do you run on K3s?

Running K3d (K3s in Docker) and docker-compose

k3d is a utility designed to easily run K3s in Docker. rancher/k3s images are also available to run the K3s server and agent from Docker. To run the agent only in Docker, use docker-compose up agent .

How do you stop K3s?

To allow high availability during upgrades, the K3s containers continue running when the K3s service is stopped. To stop all of the K3s containers and reset the containerd state, the k3s-killall.sh script can be used.

What is a K3s node?

A server node is defined as a machine (bare-metal or virtual) running the k3s server command. A worker node is defined as a machine running the k3s agent command. This page covers the following topics: Single-server setup with an embedded database. High-availability K3s server with an external database.

What is k3 Kubernetes?

K3s is a highly available, certified Kubernetes distribution designed for production workloads in unattended, resource-constrained, remote locations or inside IoT appliances.

What is Docker installation?

Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure in the same ways you manage your applications.

Can Containerd run Docker images?

Docker does not manage the containers Kubernetes runs on Containerd nodes, thus you cannot use it to view or interact with running Kubernetes containers using Docker commands or the Docker API.

What is the difference between K3s and K8s?

In fact, K3s is a CNCF-certified, conformant Kubernetes distribution ready to be deployed in production environments. Almost all the workloads that run a full-blown Kubernetes cluster are guaranteed to work on a K3s cluster. Kubernetes, the 10-letter word, is often referred to as K8s by the community.