Do not check for network connection everytime

We need network connection to install all kubernetes components and after that devive can work offline.
We have a bug where we are looping forever for network connection for every reboot, that will be an issue in remote
locations where there is no network connectivity. So skip that check if we alreayd installed all the components.

Signed-off-by: Pramodh Pallapothu <pramodh@zededa.com>

Author: Pramodh Pallapothu

pkg/kube/cluster-init.sh

@@ -199,11 +199,12 @@ setup_prereqs () {
         setup_cgroup
         #Check network and default routes are up
         wait_for_default_route
-        check_network_connection
         wait_for_device_name
         chmod o+rw /dev/null
         wait_for_vault
         mount_kube_root
+        # We need /var/lib to be mounted before we go for network connection check.
+        check_network_connection
 }
 
 config_cluster_roles() {

pkg/kube/cluster-utils.sh

@@ -23,6 +23,13 @@ logmsg() {
 }
 
 check_network_connection () {
+        # Address the case where device is installed and moved to a location with no internet access"
+        # If we already installed all the components, no internet access is not an issue.
+        if [ -f /var/lib/all_components_initialized ]; then
+           logmsg "All components already initialized, ignoring network connection check"
+           return
+        fi
+
         while true; do
                 ret=$(curl -o /dev/null -w "%{http_code}" -s "https://get.k3s.io")
                 if [ "$ret" -eq 200 ]; then
@@ -379,4 +386,4 @@ Nodes_tie_breaker_config_apply() {
                 kubectl label node "${notTbNode}" "${TIE_BREAKER_NODE_LABEL}=${TIE_BREAKER_NODE_LABEL_UNSET_VALUE}" --overwrite
                 kubectl uncordon "${notTbNode}"
         done
-}
+}