k3s bootstrap on Alpine Linux

Photo by Kevin Horvat on Unsplash

Explanation section

What is Alpine Linux?

What is k3s?

by Saiyam Pathak

Prepare alpine Linux:

echo "cgroup /sys/fs/cgroup cgroup defaults 0 0" >> /etc/fstab
cat > /etc/cgconfig.conf <<EOF
mount {
cpuacct = /cgroup/cpuacct;
memory = /cgroup/memory;
devices = /cgroup/devices;
freezer = /cgroup/freezer;
net_cls = /cgroup/net_cls;
blkio = /cgroup/blkio;
cpuset = /cgroup/cpuset;
cpu = /cgroup/cpu;
}
EOF
default_kernel_opts="...  cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory"
update-extlinux
reboot

Initializing the k3s-server

apk add --no-cache cni-plugins --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing
PATH=/usr/share/cni-plugins/bin:$PATH
apk add iptables
K3S_TOKEN=SECRET k3s server --cluster-init
K3S_TOKEN=SECRET k3s server --server https://<ip or hostname of server1>:6443
kubectl get nodes

Troubleshooting k3s:

ERRO[0816] failed to find host-local: exec: "host-local": executable file not found in $PATH
iptables not found

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Working as a IT-Operations engineer at NeXenio, a spin-off by Hasso-Plattner-Institute for products around a digitial workspace.

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D. Heinrich

D. Heinrich

Working as a IT-Operations engineer at NeXenio, a spin-off by Hasso-Plattner-Institute for products around a digitial workspace.

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