mirror of
https://github.com/clearlinux/cloud-native-setup.git
synced 2026-09-02 20:01:28 +00:00
Manohar Castelino
210cc03586
Simple set of scripts and slightly modified upstream configurations of various kubernetes services to setup a kubernetes cluster on Clearlinux. Signed-off-by: Ganesh Maharaj Mahalingam <ganesh.mahalingam@intel.com> Signed-off-by: Saikrishna Edupuganti <saikrishna.edupuganti@intel.com> Signed-off-by: Manohar Castelino <manohar.r.castelino@intel.com>
75 lines
2.1 KiB
Bash
Executable File
75 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit
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set -o nounset
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ADD_NO_PROXY="10.244.0.0/16,10.96.0.0/12"
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ADD_NO_PROXY+=",$(hostname -I | sed 's/[[:space:]]/,/g')"
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#Install kubernetes and crio
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sudo -E swupd update
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sudo -E swupd bundle-add cloud-native-basic storage-utils
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#Permanently disable swap
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swapcount=$(sudo grep '^/dev/\([0-9a-z]*\).*' /proc/swaps | wc -l)
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if [ "$swapcount" != "0" ]; then
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sudo systemctl mask $(sed -n -e 's#^/dev/\([0-9a-z]*\).*#dev-\1.swap#p' /proc/swaps) 2>/dev/null
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else
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echo "Swap not enabled"
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fi
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sudo mkdir -p /etc/sysctl.d/
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cat <<EOT | sudo tee /etc/sysctl.d/60-k8s.conf
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net.ipv4.ip_forward=1
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EOT
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sudo systemctl restart systemd-sysctl
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#Ensure the modules we need are preloaded
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sudo mkdir -p /etc/modules-load.d/
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cat <<EOT | sudo tee /etc/modules-load.d/k8s.conf
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br_netfilter
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vhost_vsock
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overlay
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EOT
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hostcount=$(grep '127.0.0.1 localhost' /etc/hosts | wc -l)
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if [ "$hostcount" == "0" ]; then
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echo "127.0.0.1 localhost `hostname`" | sudo tee -a /etc/hosts
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else
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echo "/etc/hosts already configured"
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fi
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sudo systemctl daemon-reload
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# This will fail at this point, but puts it into a retry loop that
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# will therefore startup later once we have configured with kubeadm.
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sudo systemctl enable --now kubelet crio || true
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sudo mkdir -p /usr/libexec/cni /opt/cni
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sudo ln -s /usr/libexec/cni /opt/cni/bin
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#Ensure that the system is ready without requiring a reboot
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sudo swapoff -a
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sudo modprobe br_netfilter vhost_vsock overlay
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set +o nounset
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if [[ ${http_proxy} ]] || [[ ${HTTP_PROXY} ]]; then
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echo "Setting up proxy stuff...."
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# Setup IP for users too
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sed_val=${ADD_NO_PROXY//\//\\/}
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sudo sed -i "/no_proxy/I s/$/,${sed_val}/g" /etc/environment
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sudo sed -i "/no_proxy/I s/\"$/,${sed_val}\"/g" /etc/profile.d/proxy.sh
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services=('crio' 'docker' 'kubelet')
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for s in "${services[@]}"; do
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sudo mkdir -p "/etc/systemd/system/${s}.service.d/"
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cat << EOF | sudo tee "/etc/systemd/system/${s}.service.d/proxy.conf"
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[Service]
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Environment="HTTP_PROXY=${http_proxy}"
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Environment="HTTPS_PROXY=${https_proxy}"
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Environment="SOCKS_PROXY=${socks_proxy}"
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Environment="NO_PROXY=${no_proxy},${ADD_NO_PROXY}"
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EOF
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done
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fi
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set -o nounset
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