#! /bin/bash

# If a new node is later added to the cluster, issue this script as root to sync from within the new node to sync the node against the frontend.

## 1 sync users 

cat > /share/tmp/temp.sh << EOF
#! /bin/bash
cat /etc/passwd | awk -F":" '{print \$1, \$3}' | awk '{if(\$2>=1000 && \$2<4000) {print}}'
EOF

hostname=$(echo $HOSTNAME)

ssh -X -Y -oStrictHostKeyChecking=no 192.168.1.10 "sh /share/tmp/temp.sh > /share/tmp/username.dat"
username=$(cat /share/tmp/username.dat | awk '{print $1}')
echo 'username=' $username
declare -a username=($username)

uid=$(cat /share/tmp/username.dat | awk '{print $2}')
declare -a uid=($uid)
alength=${#username[@]}
echo 'alength=' $alength

for (( i=1; i<${alength}+1; i++ ));
do
        echo 999 ${username[$i-1]} ${uid[$i-1]} mockpasswd > /share/apps/configrepo/users_data/newuser.dat
        passwd=$(cat $(ls /share/apps/configrepo/users_data/userpass* | sort | awk 'END {print}') | grep ${username[$i-1]} | awk '{print $4}')
        echo 'i=' $i ${username[$i-1]} ${uid[$i-1]} $passwd
        useradd -u ${uid[$i-1]} -g users -s /bin/bash -p $(echo "$passwd" | openssl passwd -1 -stdin) ${username[$i-1]}
        sh /share/apps/local/bin/gen_bashrc.txt
        echo user ${username[$i-1]} with uid ${uid[$i-1]} has been added to /etc/passwd in $hostname
		
		## coc-sync-pwlssh
		if [[ -e /home/${username[$i-1]}/.ssh/id_rsa.pub ]] ; 
		then 
			echo 1. Will not generate id_rsa.pub; 
		else ssh-keyscan 192.168.1.10 >> /home/${username[$i-1]}/.ssh/known_hosts; 
			yes '' | coc-gen_sshkeygen ; 
			echo 1. Will generate id_rsa.pub; 		
		fi
		echo 2. Copy the rsa key of the ${username[$i-1]} in the current node $hostname to the frontend. Password is $passwd
		sshpass -p $passwd ssh-copy-id -i /home/${username[$i-1]}/.ssh/id_rsa.pub -o StrictHostKeyChecking=no ${username[$i-1]}@192.168.1.10
		echo ' '
		
		echo 3. Remotely ssh-copy-id from the frontend to the current node $hostname
		sshpass -p $passwd ssh -oStrictHostKeyChecking=no 192.168.1.10 "sshpass -p $passwd ssh-copy-id -i /home/${username[$i-1]}/.ssh/id_rsa.pub -oStrictHostKeyChecking=no ${username[$i-1]}@$hostname"
		echo ' ' 
		ip='192.168.1.10' 
		ssh-keygen -R $ip 
		ssh-keygen -R $hostname 
		ssh-keyscan -H $ip >> /home/${username[$i-1]}/.ssh/known_hosts
		ssh-keyscan -H $hostname >> /home/${username[$i-1]}/.ssh/known_hosts
done