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sandervanvugt 2023-03-29 13:04:20 +02:00
parent 8661b42e2b
commit d3d0ac84b4
6 changed files with 4 additions and 249 deletions
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42
DONTUSE_setup-cri.sh
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@ -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

42
DONTUSE_setup-docker.sh
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@ -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

23
DONTUSE_setup-kubetools-ubuntu.sh
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@ -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

90
setup-container-old.sh
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@ -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

34
setup-kubetools-specific-version.sh
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@ -2,7 +2,7 @@
# kubeadm installation instructions as on # kubeadm installation instructions as on
# https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/ # 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 # run this script with sudo
if ! [ $USER = root ] if ! [ $USER = root ]
@ -14,35 +14,6 @@ fi
# setting MYOS variable # setting MYOS variable
MYOS=$(hostnamectl | awk '/Operating/ { print $3 }') MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }') OSVERSION=$(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" ] if [ $MYOS = "Ubuntu" ]
then then
echo RUNNING UBUNTU CONFIG echo RUNNING UBUNTU CONFIG
@ -70,3 +41,6 @@ net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1 net.bridge.bridge-nf-call-iptables = 1
EOF EOF
sysctl --system 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

22
setup-kubtools-ubuntu.sh
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@ -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