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docs: improve the nodes joining procedure (#362)

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This commit is contained in:
Adriano Pezzuto
2023-08-27 10:23:10 +02:00
committed by GitHub
parent facf23a055
commit 0db27a7335
4 changed files with 32 additions and 107 deletions
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47
deploy/nodes-prerequisites.sh
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@@ -1,47 +0,0 @@
#!/usr/bin/env bash
KUBERNETES_VERSION=$1; shift
HOSTS=("$@")
# Install `containerd` as container runtime.
cat << EOF | tee containerd.conf
overlay
br_netfilter
EOF
cat << EOF | tee 99-kubernetes-cri.conf
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF
for i in "${!HOSTS[@]}"; do
HOST=${HOSTS[$i]}
ssh ${USER}@${HOST} -t 'sudo apt update && sudo apt install -y containerd'
ssh ${USER}@${HOST} -t 'sudo mkdir -p /etc/containerd'
ssh ${USER}@${HOST} -t 'containerd config default | sed -e "s#SystemdCgroup = false#SystemdCgroup = true#g" | sudo tee -a /etc/containerd/config.toml'
ssh ${USER}@${HOST} -t 'sudo systemctl restart containerd && sudo systemctl enable containerd'
scp containerd.conf ${USER}@${HOST}:
ssh ${USER}@${HOST} -t 'sudo chown -R root:root containerd.conf && sudo mv containerd.conf /etc/modules-load.d/containerd.conf'
ssh ${USER}@${HOST} -t 'sudo modprobe overlay && sudo modprobe br_netfilter'
scp 99-kubernetes-cri.conf ${USER}@${HOST}:
ssh ${USER}@${HOST} -t 'sudo chown -R root:root 99-kubernetes-cri.conf && sudo mv 99-kubernetes-cri.conf /etc/sysctl.d/99-kubernetes-cri.conf'
ssh ${USER}@${HOST} -t 'sudo sysctl --system'
done
rm -f containerd.conf 99-kubernetes-cri.conf
# Install `kubectl`, `kubelet`, and `kubeadm` in the desired version.
INSTALL_KUBERNETES="sudo apt install -y kubelet=${KUBERNETES_VERSION}-00 kubeadm=${KUBERNETES_VERSION}-00 kubectl=${KUBERNETES_VERSION}-00 --allow-downgrades --allow-change-held-packages"
for i in "${!HOSTS[@]}"; do
HOST=${HOSTS[$i]}
ssh ${USER}@${HOST} -t 'sudo apt update'
ssh ${USER}@${HOST} -t 'sudo apt install -y apt-transport-https ca-certificates curl'
ssh ${USER}@${HOST} -t 'sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg'
ssh ${USER}@${HOST} -t 'echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list'
ssh ${USER}@${HOST} -t 'sudo apt update'
ssh ${USER}@${HOST} -t ${INSTALL_KUBERNETES}
ssh ${USER}@${HOST} -t 'sudo apt-mark hold kubelet kubeadm kubectl'
done

32
deploy/tenant-cloudinit.yaml
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@@ -1,32 +0,0 @@
#cloud-config
package_upgrade: true
packages:
- containerd
- apt-transport-https
- ca-certificates
- curl
write_files:
- owner: root:root
path: /etc/modules-load.d/containerd.conf
content: |
overlay
br_netfilter
- owner: root:root
path: /etc/sysctl.d/99-kubernetes-cri.conf
content: |
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
runcmd:
- sudo modprobe overlay
- sudo modprobe br_netfilter
- sudo sysctl --system
- sudo mkdir -p /etc/containerd
- containerd config default | sed -e 's#SystemdCgroup = false#SystemdCgroup = true#g' | sudo tee -a /etc/containerd/config.toml
- sudo systemctl restart containerd
- sudo systemctl enable containerd
- sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
- echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
- sudo apt update
- sudo apt install -y kubelet=1.25.0-00 kubeadm=1.25.0-00 kubectl=1.25.0-00
- sudo apt-mark hold kubelet kubeadm kubectl containerd