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+# Installing k3s
+
+Create `/etc/rancher/k3s/config.yaml`. Must be done before installation.
+
+Run: `curl -sfL https://get.k3s.io | bash`
+
+Copy /etc/rancher/k3s/k3s.yaml to ~/.kube/config. Adjust `server:` url.
+
+Reinstalling:
+
+    k3s-uninstall.sh
+
+Reboot
+
+    cd /etc
+    git restore rancher/k3s/config.yaml
+    cd
+    curl -sfL https://get.k3s.io | bash
+
+# Get kubeconfig
+
+    ssh danneri.dn42.trygvis.io sudo cat /etc/rancher/k3s/k3s.yaml |\
+        sed s,https://.*,https://danneri.dn42.trygvis.io:6443, > ~/.kube/config
+
+# Installing Cilium:
+
+    cilium install -f cilium.yaml
+
+old:
+
+    cilium install \
+        --set routingMode=native \
+        --set ipv4.enabled=true \
+        --set ipam.operator.clusterPoolIPv4PodCIDRList=10.0.0.0/8 \
+        --set ipv4NativeRoutingCIDR=10.0.0.0/8 \
+        --set ipv6.enabled=true \
+        --set enableIPv6Masquerade=false \
+        --set k8s.requireIPv6PodCIDR=true \
+        --set ipam.operator.clusterPoolIPv6PodCIDRList=fdb1:4242:3538:2008:aaaa:aaaa:aaaa::/96 \
+        --set ipam.operator.clusterPoolIPv6MaskSize=112 \
+        --set ipv6NativeRoutingCIDR=fdb1:4242:3538:2008::/64 \
+        --set kubeProxyReplacement=true \
+        --set k8sServiceHost=fdb1:4242:3538:2008:9422:d355:95b7:f170 \
+        --set k8sServicePort=6443
+
+TODO: check `kubeProxyReplacement=true` / `kube-proxy-replacement`.
+
+# Uninstalling
+
+Run: `k3s-uninstall.sh`. Note that this will delete everything, including `/etc/rancher/k3s/config.yaml`.
+
+    rm -rf \
+        /var/lib/cni \
+        /etc/cni \
+        /var/lib/rancher \
+        /run/cilium \
+        /run/containerd \
+        /etc/sysctl.d/99-zzz-override_cilium.conf
+
+and then do a reboot to really stop Cilium from running.