From 494bd77ea57159313f8bb1786e606ab30aaf872c Mon Sep 17 00:00:00 2001
From: Sambo Chea <7059827+sombochea@users.noreply.github.com>
Date: Sat, 9 Oct 2021 15:18:30 +0700
Subject: [PATCH] Install kubeadm kubelet and add as service

---
 README.md | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a146fad..8632819 100644
--- a/README.md
+++ b/README.md
@@ -47,10 +47,37 @@ EOF
 sudo sysctl --system
 ```
 
-# Install CNI plugins (required for most pod network)
+# Install kubernetes tools
+### Install CNI plugins (required for most pod network)
 ```shell
 CNI_VERSION="v0.8.2"
 ARCH="amd64"
 sudo mkdir -p /opt/cni/bin
 curl -L "https://github.com/containernetworking/plugins/releases/download/${CNI_VERSION}/cni-plugins-linux-${ARCH}-${CNI_VERSION}.tgz" | sudo tar -C /opt/cni/bin -xz
 ```
+
+```shell
+DOWNLOAD_DIR=/usr/local/bin
+sudo mkdir -p $DOWNLOAD_DIR
+```
+
+### Install crictl (required for kubeadm / Kubelet Container Runtime Interface (CRI))
+```shell
+CRICTL_VERSION="v1.17.0"
+ARCH="amd64"
+curl -L "https://github.com/kubernetes-sigs/cri-tools/releases/download/${CRICTL_VERSION}/crictl-${CRICTL_VERSION}-linux-${ARCH}.tar.gz" | sudo tar -C $DOWNLOAD_DIR -xz
+```
+
+### Install kubeadm, kubelet and add a kubelet systemd service
+```shell
+RELEASE="$(curl -sSL https://dl.k8s.io/release/stable.txt)"
+ARCH="amd64"
+cd $DOWNLOAD_DIR
+sudo curl -L --remote-name-all https://storage.googleapis.com/kubernetes-release/release/${RELEASE}/bin/linux/${ARCH}/{kubeadm,kubelet}
+sudo chmod +x {kubeadm,kubelet}
+
+RELEASE_VERSION="v0.4.0"
+curl -sSL "https://raw.githubusercontent.com/kubernetes/release/${RELEASE_VERSION}/cmd/kubepkg/templates/latest/deb/kubelet/lib/systemd/system/kubelet.service" | sed "s:/usr/bin:${DOWNLOAD_DIR}:g" | sudo tee /etc/systemd/system/kubelet.service
+sudo mkdir -p /etc/systemd/system/kubelet.service.d
+curl -sSL "https://raw.githubusercontent.com/kubernetes/release/${RELEASE_VERSION}/cmd/kubepkg/templates/latest/deb/kubeadm/10-kubeadm.conf" | sed "s:/usr/bin:${DOWNLOAD_DIR}:g" | sudo tee /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
+```