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sandervanvugt 2024-04-10 09:09:24 +02:00
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commit 4ae0026571
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setup-container-new.sh
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#!/bin/bash
# script that runs
# https://kubernetes.io/docs/setup/production-environment/container-runtime
# changes March 14 2023: introduced $PLATFORM to have this work on amd64 as well as arm64
# setting MYOS variable
MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
# beta: building in ARM support
[ $(arch) = aarch64 ] && PLATFORM=arm64
[ $(arch) = x86_64 ] && PLATFORM=amd64
if [ $MYOS = "Ubuntu" ]
then
### setting up container runtime prereq
cat <<- EOF | sudo tee /etc/modules-load.d/containerd.conf
overlay
br_netfilter
EOF
sudo modprobe overlay
sudo modprobe br_netfilter
# Setup required sysctl params, these persist across reboots.
cat <<- EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF
# Apply sysctl params without reboot
sudo sysctl --system
# (Install containerd)
# getting rid of hard coded version numbers
CONTAINERD_VERSION=$(curl -s https://api.github.com/repos/containerd/containerd/releases/latest | jq -r '.tag_name')
CONTAINERD_VERSION=${CONTAINERD_VERSION#v}
wget https://github.com/containerd/containerd/releases/download/v${CONTAINERD_VERSION}/containerd-${CONTAINERD_VERSION}-linux-${PLATFORM}.tar.gz
sudo tar xvf containerd-${CONTAINERD_VERSION}-linux-${PLATFORM}.tar.gz -C /usr/local
# 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
RUNC_VERSION=$(curl -s https://api.github.com/repos/opencontainers/runc/releases/latest | jq -r '.tag_name')
wget https://github.com/opencontainers/runc/releases/download/${RUNC_VERSION}/runc.${PLATFORM}
sudo install -m 755 runc.${PLATFORM} /usr/local/sbin/runc
# Restart containerd
wget https://raw.githubusercontent.com/containerd/containerd/main/containerd.service
sudo mv containerd.service /usr/lib/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable --now containerd
fi
exit
#### notes from history just in case
#!/bin/bash
# Fetch the latest release tag from GitHub API
LATEST_TAG=$(curl -s https://api.github.com/repos/opencontainers/runc/releases/latest | jq -r '.tag_name')
# Construct the download URL
DOWNLOAD_URL="https://github.com/opencontainers/runc/releases/download/${LATEST_TAG}/runc.amd64"
# Use wget to download the latest version
wget "$DOWNLOAD_URL"
echo "Downloaded $DOWNLOAD_URL"