cours-snt/test-python-ssh/entrypoint.sh
2021-03-03 16:49:58 +01:00

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#!/bin/sh
HOME_BASE="/app/python_app/modules"
USERS_LIST="/app/config/users.txt"
PASSWD_LIST="/app/config/passwords.txt"
CUSTOM_SCRIPT="/app/config/init.sh"
separator="=" # Must be ascii for cut
forbidden_chars=". / : # = \ "
# Check we got user list
if [ ! -f "$USERS_LIST" ] && [ ! -f "$PASSWD_LIST" ] ; then
echo "Les fichiers des utilisateurs ou des passwords nont pas étés trouvées."
exit 1
fi
for c in $forbidden_chars ; do
if [ -n "$(cat "$USERS_LIST" | grep -F $c)" ] ; then
echo "Le fichier « $USERS_LIST » ne doit pas contenir le caractère « $c » !"
exit 1
fi
done
# Generate passwords if not done yet
genPassowrd () {
tr -dc A-Za-z0-9 </dev/urandom | head -c $1
}
for user in $(cat "$USERS_LIST") ; do
if [ -z "$user" ] || [ -n "$(cat $PASSWD_LIST | grep "$user$separator")" ] ; then continue ; fi
echo "$user$separator$(genPassowrd 10)" >> $PASSWD_LIST
done
# Create users, home dirs, change passwords and home owners
for line in $(cat $PASSWD_LIST) ; do
name="$(echo "$line" | cut -d "$separator" -f 1)"
pass="$(echo "$line" | cut -d "$separator" -f 2)"
if [ -z "$name" ] || [ -z "$pass" ] ; then echo "Malformed line skipped: '$line'" ; continue ; fi
home="$HOME_BASE/$name"
mkdir -p "$home"
useradd --home-dir "$home" --no-user-group -G eleve --shell /bin/bash "$name"
$ret="$?"
if [ "$ret" -ne 0 ] && [ "$ret" -ne 9 ] ; then
echo "Cant create user '$name'. Error '$ret'."
continue
fi
echo "$pass\n$pass" | passwd "$name" &> /dev/null
chown "$name":eleve "$home"
done
echo "\nFin de la préparation des utilisateurs.\n"
# Custom script
if [ -f "$CUSTOM_SCRIPT" ] ; then
if [ ! -x "$CUSTOM_SCRIPT" ] ; then
chmod +x "$CUSTOM_SCRIPT"
fi
"$CUSTOM_SCRIPT"
fi
# Nginx
nginx -c '/etc/nginx/nginx.conf'
# SSH server
/usr/sbin/sshd -E /dev/stderr
# Start watever the container should be doing
/bin/sh -c "$*" &
pid="$!"
trap "kill -INT $pid" INT
trap "kill -TERM $pid" TERM
wait "$pid"