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#!/bin/bash
getRandomPasswd() {
local k
while :; do
k=$(tr -dc _A-Z-a-z-0-9 < /dev/urandom 2> /dev/null | head -c${1:-32} )
if [ $(echo -n $k | wc -c) = 32 ]; then
break
fi
echo "Wait for entropy avail : $(cat /proc/sys/kernel/random/entropy_avail)" >&2
sleep 1
done
echo -n $k
}
# main
echo "=== $0"
if [ ! -e /etc/vdn-$MODE-initialized ]; then
# regenerate ssh_host_keys
rm -f /etc/ssh/ssh_host_*
dpkg-reconfigure openssh-server
#systemctl restart ssh
# Random root and test password
echo "Random passwords."
k=$(getRandomPasswd)
#echo "root passwd : $k"
passwdRoot=$k #$(cat /dev/urandom | tr -dc _A-Z-a-z-0-9 | head -c${1:-32};)
k=$(getRandomPasswd)
#echo "test passwd : $k"
passwdTest=$k #$(cat /dev/urandom | tr -dc _A-Z-a-z-0-9 | head -c${1:-32};)
cat <<- EOF | chpasswd
root:$passwdRoot
test:$passwdTest
EOF
touch /etc/vdn-$MODE-initialized
fi