#! /bin/bash

# Execute this script to generate the index, userid and passwd of a new user to the cluster. 
# The results are appended to the pre-existed file userpass.no.dat, which is then saved as a new file userpass.$(( 1 + $no )).dat

no=$(ls /share/apps/configrepo/users_data/userpass.*.dat |  awk -F'.' '{print $2}' | sort | awk 'END {print}')
if [ -z "$no" ]
then
echo 'userpass.*.dat does not exist. To create a mock one userpass.0.dat'
echo '0 mockuser0 1000 mockpassword' > /share/apps/configrepo/users_data/userpass.0.dat
no=0
fi
read -p "Enter new username : " user
newno=$(( $no + 1 ))

######### to generate global userid
coc-sshreachable
hosts=$(cat /share/tmp/ssh-reachable.dat)

rm -rf luid.dat
for rn in $hosts
do
#ssh $rn "/share/apps/local/bin/coc-uid" >> luid.dat
ssh -oStrictHostKeyChecking=no $rn "/share/apps/local/bin/coc-uid" >> luid.dat
done
userid=$(cat luid.dat | awk '{print $6}' | sort | uniq | awk 'END {print}')
echo last userid from all nodes is $userid
rm -rf luid.dat
######### end of to generate global userid

userid=$(( $userid + 1 ))
echo 'uid='$userid will be assigned
echo '$no=' $no
Index=$(( 1 + $(cat /share/apps/configrepo/users_data/userpass.$no.dat | awk 'END {print $1}') ))
echo 'Index=' $Index
passwd=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 9 | head -n 1)

echo $Index $user $userid $passwd > /share/apps/configrepo/users_data/newuser.dat
echo newuser.dat is created in /share/apps/configrepo/users_data/newuser.dat


uid=$userid
newuser=$user
test_password=$passwd
echo $Index $uid $newuser $test_password
#useradd -u $uid -g users -p $test_password $newuser

hosts=$(cat /share/tmp/ssh-reachable.dat | awk '{if ($1 != "192.168.1.10") print $1}' | awk '$1!= "anicca" ')
echo 'available nodes are' $hosts
echo ' '
#command="useradd -u $uid -g users -p $(openssl passwd -6 "$test_password") $newuser"
#command="useradd -u $uid -g users $newuser"
 command="useradd -u $uid -g users -p $(openssl passwd -1 $test_password) $newuser"
for i in $hosts
        do
        echo entering node "$i"
	echo $command
        #pdsh -R ssh -w "$i" "$command" 

        #command="echo -e "$test_password\n$test_password\n" | passwd $newuser"
	#command='echo -e "$test_password"\'n'"$test_password" | passwd $newuser'
	#command=useradd -u $uid -g users -s /bin/bash -p $(echo "$password" | openssl passwd -1 -stdin) $username
	#echo $command
	pdsh -R ssh -w "$i" useradd -u $uid -g users -p $(openssl passwd -1 $test_password) $newuser
        done