install-k3s.sh

 # Taken from https://docs.k3s.io/installation/airgap#prepare-the-images-directory-and-k3s-binary
  runAsRoot mkdir -p /var/lib/rancher/k3s/agent/images/ "$BINARY_DIR"/
  runAsRoot cp -fv "$CALYPTIA_ROOT/k3s/k3s-airgap-images-$ARCH.tar" /var/lib/rancher/k3s/agent/images/
  runAsRoot chmod a+r /var/lib/rancher/k3s/agent/images/*.tar
  local k3s_exe=k3s
  if [[ "$ARCH" != "amd64" ]]; then
    k3s_exe="k3s-$ARCH"
  fi
  runAsRoot cp -f "$CALYPTIA_ROOT/k3s/$k3s_exe" "$BINARY_DIR"/
  runAsRoot chmod 755 "$BINARY_DIR/$k3s_exe"

  # Add a default route if none exists
  if ! command -v ip &> /dev/null ; then
    warn "Unable to check for default route automatically, ensure one is provided"
  elif ! ip route show 2>&1 | grep -q "default" ; then
    if setupDummyRoute ; then
      info "Set up dummy route"
    else
      warn "Unable to set up dummy route automatically, ensure a default route is provided"
    fi
  fi

  runAsRoot chmod 755 "$CALYPTIA_ROOT/k3s/install.sh"

  # Install
  INSTALL_K3S_SKIP_DOWNLOAD=true \
    INSTALL_K3S_SKIP_SELINUX_RPM=true \
    INSTALL_K3S_SELINUX_WARN=true \
    INSTALL_K3S_BIN_DIR="$BINARY_DIR" \
    "$CALYPTIA_ROOT/k3s/install.sh" \
      --write-kubeconfig-mode 644 \
      --prefer-bundled-bin \
      --kubelet-arg='eviction-hard=imagefs.available<1%,nodefs.available<1%' \
      --kubelet-arg='eviction-minimum-reclaim=imagefs.available=1%,nodefs.available=1%' \
      --cluster-cidr "$CLUSTER_CIDR" \
      --service-cidr "$SERVICE_CIDR" \
      --cluster-dns "$CLUSTER_DNS" \
      --service-node-port-range "$SERVICE_NODE_PORT_RANGE" \
      --cluster-domain "$CLUSTER_DOMAIN"

  runAsRoot mkdir -p /root/.kube/
  runAsRoot cp -f /etc/rancher/k3s/k3s.yaml /root/.kube/config
  echo "export KUBECONFIG=/etc/rancher/k3s/k3s.yaml"     | runAsRoot tee -a /etc/environment > /dev/null

move-data-k3s.sh

#!/bin/bash
set -eu

# Helper script to move K3S data to another location - not intended to be run multiple times.
NEW_LOCATION=${NEW_LOCATION:-$1}

# use sudo if we are not already root
SUDO=sudo
if [[ $(id -u) -eq 0 ]]; then
    SUDO=''
fi

if [[ -d "$NEW_LOCATION"/k3s ]]; then
    echo "Existing data already found at $NEW_LOCATION/k3s"
    exit 1
fi

if [[ -d "$NEW_LOCATION"/k3s-pods ]]; then
    echo "Existing data already found at $NEW_LOCATION/k3s-pods"
    exit 1
fi

if [[ -d "$NEW_LOCATION"/k3s-rancher ]]; then
    echo "Existing data already found at $NEW_LOCATION/k3s-rancher"
    exit 1
fi

"$SUDO" systemctl stop k3s
"$SUDO" sh -c /usr/local/bin/k3s-killall.sh

"$SUDO" mkdir -p "$NEW_LOCATION"

"$SUDO" mv /run/k3s "$NEW_LOCATION"/k3s
"$SUDO" mv /var/lib/kubelet/pods "$NEW_LOCATION"/k3s-pods
"$SUDO" mv /var/lib/rancher "$NEW_LOCATION"/k3s-rancher

"$SUDO" ln -s "$NEW_LOCATION"/k3s/ /run/k3s
"$SUDO" ln -s "$NEW_LOCATION"/k3s-pods/ /var/lib/kubelet/pods
"$SUDO" ln -s "$NEW_LOCATION"/k3s-rancher/ /var/lib/rancher

"$SUDO" chmod -R a+r "$NEW_LOCATION"/k3s*/

"$SUDO" systemctl start k3s