查看“︁Kubernetes installation”︁的源代码

= Ubuntu 22.04 =
==System preparation==
===Updrage===
<syntaxhighlight lang="bash">
sudo apt update
sudo apt upgrade
do-release-update
</syntaxhighlight>

=== Mount data disk ===
<syntaxhighlight lang="bash">
mkfs.xfs /dev/vdb
lsof /var
mv /var/ /var0
mkdir /mnt/newvar/
mount /dev/vdb /mnt/newvar/
rsync -aqxP /var0/* /mnt/newvar/
umount /mnt/newvar
mkdir /var
mount /dev/vdb /var

vim /etc/fstab
# /dev/vdb /var xfs  defaults 0 0
</syntaxhighlight>

=== System configuration ===
<ref>https://kubernetes.io/docs/setup/production-environment/container-runtimes/#forwarding-ipv4-and-letting-iptables-see-bridged-traffic</ref>
<syntaxhighlight lang="bash">
hostnamectl set-hostname master.xx.com

cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
EOF

sudo modprobe overlay
sudo modprobe br_netfilter

# sysctl params required by setup, params persist across reboots
cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-iptables  = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward                 = 1
EOF

# Apply sysctl params without reboot
sudo sysctl --system
</syntaxhighlight>

Verify:
<syntaxhighlight lang="bash">
root@vm10-19-30-61:~# lsmod | grep br_netfilter
br_netfilter           32768  0
bridge                307200  1 br_netfilter
root@vm10-19-30-61:~# lsmod | grep overlay
overlay               151552  0
root@vm10-19-30-61:~# sysctl net.bridge.bridge-nf-call-iptables net.bridge.bridge-nf-call-ip6tables net.ipv4.ip_forward
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
</syntaxhighlight>

=== Disable swap ===
<syntaxhighlight lang="bash">
# check if swap is disabled
swapon -s
</syntaxhighlight>

== Install Kubernetes ==
=== Containerd runtime===
<ref>https://docs.docker.com/engine/install/ubuntu/</ref>
<ref>https://mirrors.tuna.tsinghua.edu.cn/help/docker-ce/</ref>

<syntaxhighlight lang="bash">
# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc



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

# Use mirror instead:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.asc
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update

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

sudo usermod -aG docker $USER
sudo systemctl enable docker.service
sudo systemctl enable containerd.service
</syntaxhighlight>

Generate containerd config using systemd:
<syntaxhighlight lang="bash">
sudo containerd config default | sudo tee /etc/containerd/config.toml
</syntaxhighlight>

And modify it:
<syntaxhighlight lang="bash">
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
  ...
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
    SystemdCgroup = true

sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.6"
</syntaxhighlight>

Restart the service:
<syntaxhighlight lang="bash">
sudo systemctl restart containerd
</syntaxhighlight>

=== Install Kubeadm===
<ref>https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/</ref>
<syntaxhighlight lang="bash">
sudo apt-get install -y apt-transport-https ca-certificates curl gpg
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.29/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.29/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list

sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl
</syntaxhighlight>

=== Configure docker proxy ===
proxy server:
<syntaxhighlight lang="bash">

</syntaxhighlight>

docker:<ref>https://docs.docker.com/config/daemon/systemd/</ref>

<syntaxhighlight lang="bash">
sudo mkdir -p /etc/systemd/system/docker.service.d
vim /etc/systemd/system/docker.service.d/http-proxy.conf

# Must configure HTTPS_PROXY
[Service]
Environment="HTTP_PROXY=http://user:password@riguz.com:8080/"
Environment="HTTPS_PROXY=http://user:password@riguz.com:8080/"
</syntaxhighlight>

Must restart the servecie:

<syntaxhighlight lang="bash">
sudo systemctl daemon-reload
sudo systemctl restart docker

systemctl show --property=Environment docker
</syntaxhighlight>
=== (Master) Create cluster ===
<ref>https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/</ref>

<syntaxhighlight lang="bash">
sudo systemctl start kubelet
sudo systemctl enable kubelet

MASTER_IP="10.19.30.61"
NODENAME=$(hostname -s)
POD_CIDR="192.168.0.0/16"
KUBERNETES_VERSION="v1.29.3"
HTTP_PROXY="xxx"
HTTPS_PROXY="xxx"

kubeadm init \
  --pod-network-cidr=$POD_CIDR \
  --apiserver-advertise-address $MASTER_IP \
  --node-name $NODENAME
</syntaxhighlight>


[[Category:Linux/Unix]]
[[Category:Kubernetes]]