Add image registries into container config

Fixes: clearlinux#67

Signed-off-by: Ganesh Maharaj Mahalingam <ganesh.mahalingam@intel.com>

clr-k8s-examples/README.md

@@ -24,6 +24,7 @@ to ensure k8s works on it.
 This script ensures the following
 
 * Installs the bundles the Clearlinux needs to support Kubernetes, CRIO and Kata
+* Setup `/etc/containers/registries.conf` to use docker.io & quay.io
 * Customizes the system to ensure correct defaults are setup (IP Forwarding, Swap off,...)
 * Ensures all the dependencies are loaded on boot (kernel modules)
 

clr-k8s-examples/setup_system.sh

@@ -10,6 +10,14 @@ ADD_NO_PROXY+=",$(hostname -I | sed 's/[[:space:]]/,/g')"
 sudo -E swupd update
 sudo -E swupd bundle-add cloud-native-basic storage-utils
 
+# Add registries for k8s onto crio's registries.conf
+if [ ! -f /etc/containers/registries.conf ]; then
+  cat << EORF > sudo bash -c "cat > /etc/containers/registries.conf"
+[registries.search]
+registries = ['docker.io', 'quay.io']
+EORF
+fi
+
 #Permanently disable swap
 swapcount=$(sudo grep '^/dev/\([0-9a-z]*\).*' /proc/swaps | wc -l)