Infra (docker, k8s, helm etc..)

Linux (incl wsl2)

Linux (incl wsl2)

Oh My ZSH

Install ZSH

sudo apt get install zsh -y

Install oh my zsh

sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

Install powerlevel10k

Manual font installation

  1. Download these four ttf files:

Select all the four font files, rigtht mouse -> more options -> install for all users

Oh My Zsh

  1. Clone the repository:

    git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/themes/powerlevel10k

    Users in China can use the official mirror on gitee.com for faster download.
    中国用户可以使用 gitee.com 上的官方镜像加速下载.

    git clone --depth=1 https://gitee.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/themes/powerlevel10k

  2. Set ZSH_THEME="powerlevel10k/powerlevel10k" in ~/.zshrc.

Configuration wizard

Type p10k configure to access the builtin configuration wizard right from your terminal.

Screen recording  

All styles except Pure are functionally equivalent. They display the same information and differ only in presentation.

Configuration wizard creates ~/.p10k.zsh based on your preferences. Additional prompt customization can be done by editing this file. It has plenty of comments to help you navigate through configuration options.

Linux (incl wsl2)

wsl2 setup

/etc/wsl.conf

[boot]
systemd=true

sudoers:

# Allow members of group sudo to execute any command
#%sudo  ALL=(ALL:ALL) ALL
%sudo   ALL=(ALL) NOPASSWD: ALL

k8s

k8s

k3s

Install Script​

K3s provides an installation script that is a convenient way to install it as a service on systemd or openrc based systems. This script is available at https://get.k3s.io. To install K3s using this method, just run:

curl -sfL https://get.k3s.io | sh -

After running this installation:

A single-node server installation is a fully-functional Kubernetes cluster, including all the datastore, control-plane, kubelet, and container runtime components necessary to host workload pods. It is not necessary to add additional server or agents nodes, but you may want to do so to add additional capacity or redundancy to your cluster.

To install additional agent nodes and add them to the cluster, run the installation script with the K3S_URL and K3S_TOKEN environment variables. Here is an example showing how to join an agent:

curl -sfL https://get.k3s.io | K3S_URL=https://myserver:6443 K3S_TOKEN=mynodetoken sh -

Setting the K3S_URL parameter causes the installer to configure K3s as an agent, instead of a server. 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.

Kubectl config

First set up your an environmental variable for KUBECONFIG=~/.kube/config.

export KUBECONFIG=~/.kube/config

Then let's generate the file at that location. Your k3s.yaml file should NOT be world readable.. This is by-design. It should be owned by root and set to 0600. Instead copy the config locally as described here,

mkdir ~/.kube 2> /dev/null
sudo k3s kubectl config view --raw > "$KUBECONFIG"
chmod 600 "$KUBECONFIG"

You can add KUBECONFIG=~/.kube/config to your ~/.profile or ~/.bashrc to make it persist on reboot.

k8s

Helm

$ curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
$ chmod 700 get_helm.sh
$ ./get_helm.sh

Docker

Docker

Install (ubuntu)

Run the following command to uninstall all conflicting packages:

for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do sudo apt-get remove $pkg; done

apt-get might report that you have none of these packages installed.

Images, containers, volumes, and networks stored in /var/lib/docker/ aren’t automatically removed when you uninstall Docker. If you want to start with a clean installation, and prefer to clean up any existing data, read the uninstall Docker Engine section.

Install using the apt repository

Before you install Docker Engine for the first time on a new host machine, you need to set up the Docker repository. Afterward, you can install and update Docker from the repository.

Set up the repository

  1. Update the apt package index and install packages to allow apt to use a repository over HTTPS:

    sudo apt-get update
sudo apt-get install ca-certificates curl gnupg

  2. Add Docker’s official GPG key:

    sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

  3. Use the following command to set up the repository:

     echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

    Note

    If you use an Ubuntu derivative distro, such as Linux Mint, you may need to use UBUNTU_CODENAME instead of VERSION_CODENAME.

Install Docker Engine

  1. Update the apt package index:

    sudo apt-get update

  2. Install Docker Engine, containerd, and Docker Compose.



    To install the latest version, run:

     sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

  3. Verify that the Docker Engine installation is successful by running the hello-world image.

    sudo docker run hello-world

    This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits.

sudo groupadd docker
sudo usermod -aG docker $USER
newgrp docker