From d3d0ac84b4a8c8782ddc7ddb824e1ca79510c51a Mon Sep 17 00:00:00 2001
From: sandervanvugt <mail@sandervanvugt.nl>
Date: Wed, 29 Mar 2023 13:04:20 +0200
Subject: [PATCH] message

---
 DONTUSE_setup-cri.sh                | 42 --------------
 DONTUSE_setup-docker.sh             | 42 --------------
 DONTUSE_setup-kubetools-ubuntu.sh   | 23 --------
 setup-container-old.sh              | 90 -----------------------------
 setup-kubetools-specific-version.sh | 34 ++---------
 setup-kubtools-ubuntu.sh            | 22 -------
 6 files changed, 4 insertions(+), 249 deletions(-)
 delete mode 100755 DONTUSE_setup-cri.sh
 delete mode 100755 DONTUSE_setup-docker.sh
 delete mode 100755 DONTUSE_setup-kubetools-ubuntu.sh
 delete mode 100755 setup-container-old.sh
 delete mode 100644 setup-kubtools-ubuntu.sh

diff --git a/DONTUSE_setup-cri.sh b/DONTUSE_setup-cri.sh
deleted file mode 100755
index eaa51f1..0000000
--- a/DONTUSE_setup-cri.sh
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/bash
-# script that runs 
-# https://kubernetes.io/docs/setup/production-environment/container-runtime
-
-echo this script is now deprecated and provided for compatibility reasons only. 
-echo run setup-container.sh instead. 
-echo after running setup-container.sh, use setup-kubetools.sh to install the kubernetes tools
-echo this script will now stop
-echo use Ctrl-C to stop it now
-sleep 30
-exit
-
-yum install -y vim yum-utils device-mapper-persistent-data lvm2
-yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
-
-# notice that only verified versions of Docker may be installed
-# verify the documentation to check if a more recent version is available
-
-yum install -y docker-ce
-[ ! -d /etc/docker ] && mkdir /etc/docker
-
-cat > /etc/docker/daemon.json <<EOF
-{
-  "exec-opts": ["native.cgroupdriver=systemd"],
-  "log-driver": "json-file",
-  "log-opts": {
-    "max-size": "100m"
-  },
-  "storage-driver": "overlay2",
-  "storage-opts": [
-    "overlay2.override_kernel_check=true"
-  ]
-}
-EOF
-
-mkdir -p /etc/systemd/system/docker.service.d
-
-systemctl daemon-reload
-systemctl restart docker
-systemctl enable docker
-
-systemctl disable --now firewalld
diff --git a/DONTUSE_setup-docker.sh b/DONTUSE_setup-docker.sh
deleted file mode 100755
index eaa51f1..0000000
--- a/DONTUSE_setup-docker.sh
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/bash
-# script that runs 
-# https://kubernetes.io/docs/setup/production-environment/container-runtime
-
-echo this script is now deprecated and provided for compatibility reasons only. 
-echo run setup-container.sh instead. 
-echo after running setup-container.sh, use setup-kubetools.sh to install the kubernetes tools
-echo this script will now stop
-echo use Ctrl-C to stop it now
-sleep 30
-exit
-
-yum install -y vim yum-utils device-mapper-persistent-data lvm2
-yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
-
-# notice that only verified versions of Docker may be installed
-# verify the documentation to check if a more recent version is available
-
-yum install -y docker-ce
-[ ! -d /etc/docker ] && mkdir /etc/docker
-
-cat > /etc/docker/daemon.json <<EOF
-{
-  "exec-opts": ["native.cgroupdriver=systemd"],
-  "log-driver": "json-file",
-  "log-opts": {
-    "max-size": "100m"
-  },
-  "storage-driver": "overlay2",
-  "storage-opts": [
-    "overlay2.override_kernel_check=true"
-  ]
-}
-EOF
-
-mkdir -p /etc/systemd/system/docker.service.d
-
-systemctl daemon-reload
-systemctl restart docker
-systemctl enable docker
-
-systemctl disable --now firewalld
diff --git a/DONTUSE_setup-kubetools-ubuntu.sh b/DONTUSE_setup-kubetools-ubuntu.sh
deleted file mode 100755
index 2697179..0000000
--- a/DONTUSE_setup-kubetools-ubuntu.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/bash
-
-cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
-br_netfilter
-EOF
-
-cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
-net.bridge.bridge-nf-call-ip6tables = 1
-net.bridge.bridge-nf-call-iptables = 1
-EOF
-sudo sysctl --system
-sudo swapoff -a
-
-sudo apt-get update && sudo apt-get install -y apt-transport-https curl
-curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
-cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
-deb https://apt.kubernetes.io/ kubernetes-xenial main
-EOF
-sudo apt-get update
-sudo apt-get install -y kubelet kubeadm kubectl
-sudo apt-mark hold kubelet kubeadm kubectl
-
-
diff --git a/setup-container-old.sh b/setup-container-old.sh
deleted file mode 100755
index afcaeff..0000000
--- a/setup-container-old.sh
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/bin/bash
-# script that runs 
-# https://kubernetes.io/docs/setup/production-environment/container-runtime
-
-# setting MYOS variable
-MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
-OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
-
-##### CentOS 7 config
-if [ $MYOS = "CentOS" ]
-then
-	echo setting up CentOS 7 with Docker 
-	yum install -y vim yum-utils device-mapper-persistent-data lvm2
-	yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
-
-	# notice that only verified versions of Docker may be installed
-	# verify the documentation to check if a more recent version is available
-
-	yum install -y docker-ce
-	[ ! -d /etc/docker ] && mkdir /etc/docker
-
-	mkdir -p /etc/systemd/system/docker.service.d
-
-
-	cat > /etc/docker/daemon.json <<- EOF
-	{
-	  "exec-opts": ["native.cgroupdriver=systemd"],
-	  "log-driver": "json-file",
-	  "log-opts": {
-	    "max-size": "100m"
-	  },
-	  "storage-driver": "overlay2",
-	  "storage-opts": [
-	    "overlay2.override_kernel_check=true"
-	  ]
-	}
-	EOF
-
-
-	systemctl daemon-reload
-	systemctl restart docker
-	systemctl enable docker
-
-	systemctl disable --now firewalld
-fi
-
-echo printing MYOS $MYOS
-
-if [ $MYOS = "Ubuntu" ]
-then
-	### setting up container runtime prereq
-	cat <<- EOF | sudo tee /etc/modules-load.d/containerd.conf
-	overlay
-	br_netfilter
-	EOF
-
-	sudo modprobe overlay
-	sudo modprobe br_netfilter
-
-	# Setup required sysctl params, these persist across reboots.
-	cat <<- EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
-	net.bridge.bridge-nf-call-iptables  = 1
-	net.ipv4.ip_forward                 = 1
-	net.bridge.bridge-nf-call-ip6tables = 1
-	EOF
-
-	# Apply sysctl params without reboot
-	sudo sysctl --system
-
-	# (Install containerd)
-	sudo apt-get update && sudo apt-get install -y containerd
-	# Configure containerd
-	sudo mkdir -p /etc/containerd
-	cat <<- TOML | sudo tee /etc/containerd/config.toml
-version = 2
-[plugins]
-  [plugins."io.containerd.grpc.v1.cri"]
-    [plugins."io.containerd.grpc.v1.cri".containerd]
-      discard_unpacked_layers = true
-      [plugins."io.containerd.grpc.v1.cri".containerd.runtimes]
-        [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
-          runtime_type = "io.containerd.runc.v2"
-          [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
-            SystemdCgroup = true
-	TOML
-
-	# Restart containerd
-	sudo systemctl restart containerd	
-fi
-
diff --git a/setup-kubetools-specific-version.sh b/setup-kubetools-specific-version.sh
index 0a9e10b..31cc0c2 100755
--- a/setup-kubetools-specific-version.sh
+++ b/setup-kubetools-specific-version.sh
@@ -2,7 +2,7 @@
 # kubeadm installation instructions as on
 # https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/
 
-# this script supports centos 7 and Ubuntu 20.04 only
+# this script supports Ubuntu 20.04 and later only
 # run this script with sudo
 
 if ! [ $USER = root ]
@@ -14,35 +14,6 @@ fi
 # setting MYOS variable
 MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
 OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
-
-##### CentOS 7 config
-if [ $MYOS = "CentOS" ]
-then
-	echo RUNNING CENTOS CONFIG
-	cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
-[kubernetes]
-name=Kubernetes
-baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-\$basearch
-enabled=1
-gpgcheck=1
-repo_gpgcheck=1
-gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
-exclude=kubelet kubeadm kubectl
-EOF
-
-	# Set SELinux in permissive mode (effectively disabling it)
-	setenforce 0
-	sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
-
-	# disable swap (assuming that the name is /dev/centos/swap
-	sed -i 's/^\/dev\/mapper\/centos-swap/#\/dev\/mapper\/centos-swap/' /etc/fstab
-	swapoff /dev/mapper/centos-swap
-
-	yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
-
-	systemctl enable --now kubelet
-fi
-
 if [ $MYOS = "Ubuntu" ]
 then
 	echo RUNNING UBUNTU CONFIG
@@ -70,3 +41,6 @@ net.bridge.bridge-nf-call-ip6tables = 1
 net.bridge.bridge-nf-call-iptables = 1
 EOF
 sysctl --system
+
+echo after initializing the control node, follow instructions and use kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.25.0/manifests/calico.yaml to install the calico plugin (control node only). On the worker nodes, use sudo kubeadm join ... to join
+
diff --git a/setup-kubtools-ubuntu.sh b/setup-kubtools-ubuntu.sh
deleted file mode 100644
index fa3bf0e..0000000
--- a/setup-kubtools-ubuntu.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
-br_netfilter
-EOF
-
-cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
-net.bridge.bridge-nf-call-ip6tables = 1
-net.bridge.bridge-nf-call-iptables = 1
-EOF
-sudo sysctl --system
-
-sudo apt-get update && sudo apt-get install -y apt-transport-https curl
-curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
-cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
-deb https://apt.kubernetes.io/ kubernetes-xenial main
-EOF
-sudo apt-get update
-sudo apt-get install -y kubelet kubeadm kubectl
-sudo apt-mark hold kubelet kubeadm kubectl
-
-