docker-install VS k3s

Installing Docker Engine on an Ubuntu EC2 instance The quickest way to install the Docker engine is using the get-docker.sh bash script on get.docker.com. Run the command below to download the script on your EC2 instance.

curl -fsSL https://get.docker.com -o get-docker.sh sh get-docker.sh

2.curl -fsSL https://get.docker.com/ | sh

curl https://get.docker.com | sh \ && docker run \ --privileged \ --pid=host \ --network=host \ alpine nsenter /proc/1/ns/mnt -- /bin/bash

[email protected]:~# curl -fsSL https://get.docker.com | sh - Client: Docker Engine - Community Version: 20.10.22 API version: 1.41 Go version: go1.18.9 Git commit: 3a2c30b Built: Thu Dec 15 22:28:04 2022 OS/Arch: linux/amd64 Context: default Experimental: true Server: Docker Engine - Community Engine: Version: 20.10.22 API version: 1.41 (minimum version 1.12) Go version: go1.18.9 Git commit: 42c8b31 Built: Thu Dec 15 22:25:49 2022 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.6.14 GitCommit: 9ba4b250366a5ddde94bb7c9d1def331423aa323 runc: Version: 1.1.4 GitCommit: v1.1.4-0-g5fd4c4d docker-init: Version: 0.19.0 GitCommit: de40ad0

[email protected]:~$ curl -fsSL https://get.docker.com | sh - Client: Docker Engine - Community Version: 20.10.22 API version: 1.41 Go version: go1.18.9 Git commit: 3a2c30b Built: Thu Dec 15 22:28:04 2022 OS/Arch: linux/amd64 Context: default Experimental: true Server: Docker Engine - Community Engine: Version: 20.10.22 API version: 1.41 (minimum version 1.12) Go version: go1.18.9 Git commit: 42c8b31 Built: Thu Dec 15 22:25:49 2022 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.6.14 GitCommit: 9ba4b250366a5ddde94bb7c9d1def331423aa323 runc: Version: 1.1.4 GitCommit: v1.1.4-0-g5fd4c4d docker-init: Version: 0.19.0 GitCommit: de40ad0 ================================================================================ To run Docker as a non-privileged user, consider setting up the Docker daemon in rootless mode for your user: dockerd-rootless-setuptool.sh install Visit https://docs.docker.com/go/rootless/ to learn about rootless mode. To run the Docker daemon as a fully privileged service, but granting non-root users access, refer to https://docs.docker.com/go/daemon-access/ WARNING: Access to the remote API on a privileged Docker daemon is equivalent to root access on the host. Refer to the 'Docker daemon attack surface' documentation for details: https://docs.docker.com/go/attack-surface/ ================================================================================ [email protected]:~$ sudo usermod -aG docker ubuntu [email protected]:~$ newgrp docker [email protected]:~$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

Did you try the instructions from docker’s official site? All it should take is either adding their repos and apt installing the few necessary packages or downloading and executing the script found at https://get.docker.com

[email protected]:~# curl -fsSL https://get.docker.com | sh - [email protected]:~# curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.17.0/kind-linux-amd64 [email protected]:~# chmod +x ./kind [email protected]:~# mv ./kind /usr/local/bin/kind [email protected]:~# kind kind creates and manages local Kubernetes clusters using Docker container 'nodes' Usage: kind [command] Available Commands: build Build one of [node-image] completion Output shell completion code for the specified shell (bash, zsh or fish) create Creates one of [cluster] delete Deletes one of [cluster] export Exports one of [kubeconfig, logs] get Gets one of [clusters, nodes, kubeconfig] help Help about any command load Loads images into nodes version Prints the kind CLI version Flags: -h, --help help for kind --loglevel string DEPRECATED: see -v instead -q, --quiet silence all stderr output -v, --verbosity int32 info log verbosity, higher value produces more output --version version for kind Use "kind [command] --help" for more information about a command.

curl -fsSL https://get.docker.com -o get-docker.sh sh get-docker.sh

[email protected]:~# systemctl stop k0scontroller [email protected]:~# k0s reset WARN[2022-11-20 22:02:24] To ensure a full reset, a node reboot is recommended. [email protected]:~# curl -fsSL https://get.docker.com | sh - # Executing docker install script, commit: 4f282167c425347a931ccfd95cc91fab041d414f + sh -c apt-get update -qq >/dev/null + sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null + sh -c mkdir -p /etc/apt/keyrings && chmod -R 0755 /etc/apt/keyrings + sh -c curl -fsSL "https://download.docker.com/linux/ubuntu/gpg" | gpg --dearmor --yes -o /etc/apt/keyrings/docker.gpg + sh -c chmod a+r /etc/apt/keyrings/docker.gpg + sh -c echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu jammy stable" > /etc/apt/sources.list.d/docker.list + sh -c apt-get update -qq >/dev/null + sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends docker-ce docker-ce-cli containerd.io docker-compose-plugin docker-scan-plugin >/dev/null + version_gte 20.10 + [-z] + return 0 + sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq docker-ce-rootless-extras >/dev/null + sh -c docker version Client: Docker Engine - Community Version: 20.10.21 API version: 1.41 Go version: go1.18.7 Git commit: baeda1f Built: Tue Oct 25 18:01:58 2022 OS/Arch: linux/amd64 Context: default Experimental: true Server: Docker Engine - Community Engine: Version: 20.10.21 API version: 1.41 (minimum version 1.12) Go version: go1.18.7 Git commit: 3056208 Built: Tue Oct 25 17:59:49 2022 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.6.10 GitCommit: 770bd0108c32f3fb5c73ae1264f7e503fe7b2661 runc: Version: 1.1.4 GitCommit: v1.1.4-0-g5fd4c4d docker-init: Version: 0.19.0 GitCommit: de40ad0 ================================================================================ To run Docker as a non-privileged user, consider setting up the Docker daemon in rootless mode for your user: dockerd-rootless-setuptool.sh install Visit https://docs.docker.com/go/rootless/ to learn about rootless mode. To run the Docker daemon as a fully privileged service, but granting non-root users access, refer to https://docs.docker.com/go/daemon-access/ WARNING: Access to the remote API on a privileged Docker daemon is equivalent to root access on the host. Refer to the 'Docker daemon attack surface' documentation for details: https://docs.docker.com/go/attack-surface/ ================================================================================ [email protected]:~# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

Easily create multi-node Kubernetes clusters with K3s, and enjoy all of K3s's features

Or a bare metal option would be to use k3s which will install all dependencies (no docker required)

Following posts by u/jasoneckert who said it was possible. My own testing and inability to get it running. To u/victorhooi's pointed inspection of the k3s change that broke it. I was able to get an older version of k3s running on asahi. Hopefully, SUSE and K3s will get the 4k page size limitation fixed as they are working on it, it seems: https://github.com/k3s-io/k3s/issues/7335

Also, feel free to comment on https://github.com/k3s-io/k3s/issues/7335 - I fear I don't yet understand all the technical details, to mount a very persuasive argument - but would love somebody more qualified to help!

I want to create binaries for windows/linux/mac. While researching this same issue, I've seen, K3S comes bundled with kubectl, crictl, and some others, and using them to interact with the kube cluster ( Installation, operation, and other stuff).

You can see the usage of urfave/cli in this file, and many others in the k3s/pkg/cli package

I would even suggest for local deployments use something like k3s. Setting up a local pod is easily done in Kubernetes, without much overhead. In addition, you learn a valuable skill.

I recently built a HA cluster with LoadBalancer support. I'm using k3s and kube-vip. The latter was originally built to provide a virtual IP for the control plane and worked in concert with MetalLB, for load balancing. Now it can do both.