initial code added

ucloud-init.start

@@ -0,0 +1,52 @@
+#!/bin/sh
+
+get_distro() {
+	OS=$(cat /etc/*release | grep ID | head -1 | cut -c 4-)
+	echo $OS
+}
+if ! $(which rdnssd); then
+	echo "nameserver 2a0a:e5c0::3" >> /etc/resolv.conf
+	echo "nameserver 2a0a:e5c0::4" >> /etc/resolv.conf
+	
+	apk add ndisc6
+fi
+
+# Get IPv6 DNS
+rdnssd -u root -r /etc/resolv.conf
+
+ssh_authorized_keys_path='/root/.ssh/authorized_keys'
+ssh_config_path='/etc/ssh/ssh_config'
+# Initial Package Intallation
+if [ [ $(get_distro) = "alpine" ]; then
+	apk update
+	apk add python3 openssh-server sfdisk util-linux jq
+	touch $ssh_authorized_keys_path
+
+	if ! grep -q "PasswordAuthentication no" $ssh_config_path; then
+		echo "PasswordAuthentication no" >> $ssh_config_path
+	fi
+	
+	if ! grep -q "PermitRootLogin yes" $ssh_config_path; then
+		echo "PermitRootLogin yes" >> $ssh_config_path
+	fi
+	service sshd restart
+else
+	echo "Unsupported OS"
+	exit
+fi
+
+wget https://git.launchpad.net/ubuntu/+source/cloud-utils/plain/bin/growpart
+if [ -e growpart ]; then
+	sh ./growpart /dev/vda3; rm growpart
+fi
+
+# TODO: Make sure to replace the following address with http://metadata
+# whenever we got http://metadata resolving to url work successfully.
+metadata=$(curl http://[2a0a:e5c1:144::]:5000)
+
+ssh_key=$(echo $metadata | jq '.["ssh-key"]')
+ssh_key="${ssh_key:1:-1}"  # Removes quotation marks
+
+if ! grep -q "$ssh_key" $ssh_authorized_keys_path; then
+	echo $ssh_key >> $ssh_authorized_keys_path
+fi