Skip to content

Instantly share code, notes, and snippets.

@dmi3mis
Last active September 16, 2025 17:16
Show Gist options
  • Save dmi3mis/e52c64d4d0b07fc154b49671edd97019 to your computer and use it in GitHub Desktop.
Save dmi3mis/e52c64d4d0b07fc154b49671edd97019 to your computer and use it in GitHub Desktop.
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.14.9/config/manifests/metallb-native.yaml
echo "
---
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
name: default
namespace: metallb-system
spec:
addresses:
- 172.20.20.100-172.20.20.150
autoAssign: true
---
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
name: default
namespace: metallb-system
spec:
ipAddressPools:
- default
" |kubectl create -f -
#!/bin/bash
swapoff -a
sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
tee /etc/modules-load.d/containerd.conf <<EOF
overlay
br_netfilter
EOF
modprobe overlay -v
modprobe br_netfilter -v
tee /etc/modules <<EOF
overlay
br_netfilter
EOF
tee /etc/sysctl.d/kubernetes.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF
sysctl --system
# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get -y install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
apt install -y curl gnupg2 patch software-properties-common apt-transport-https ca-certificates containerd.io
rm -rf /etc/containerd/certs.d/
containerd config default | sudo tee /etc/containerd/config.toml >/dev/null 2>&1
sed -i 's/SystemdCgroup \= false/SystemdCgroup \= true/g' /etc/containerd/config.toml
cat > ~/config.toml.patch <<'EOF'
162c162
< config_path = ""
---
> config_path = "/etc/containerd/certs.d/"
>
EOF
sudo patch /etc/containerd/config.toml ~/config.toml.patch
mkdir -p /etc/containerd/certs.d/docker.io
cat > /etc/containerd/certs.d/docker.io/hosts.toml <<'EOF'
server = "https://registry-1.docker.io"
[host."https://mirror.gcr.io"]
capabilities = ["pull", "resolve"]
EOF
systemctl stop containerd
systemctl start containerd
systemctl enable containerd
apt-get update
apt-get install -y apt-transport-https ca-certificates curl gpg
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.33/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:/v1.33/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
apt-get update
apt-get install -y kubelet kubeadm kubectl
apt-mark hold kubelet kubeadm kubectl
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment