#!/usr/bin/env bash set -ex EASY_RSA_LOC="/etc/openvpn/easyrsa" SERVER_CERT="${EASY_RSA_LOC}/pki/issued/server.crt" OVPN_SRV_NET=${OVPN_SERVER_NET:-172.16.100.0} OVPN_SRV_MASK=${OVPN_SERVER_MASK:-255.255.255.0} cd $EASY_RSA_LOC if [ -e "$SERVER_CERT" ]; then echo "Found existing certs - reusing" else if [ ${OVPN_ROLE:-"master"} = "slave" ]; then echo "Waiting for initial sync data from master" while [ $(wget -q localhost/api/sync/last/try -O - | wc -m) -lt 1 ] do sleep 5 done else echo "Generating new certs" easyrsa init-pki cp -R /usr/share/easy-rsa/* $EASY_RSA_LOC/pki echo "ca" | easyrsa build-ca nopass easyrsa build-server-full server nopass easyrsa gen-dh openvpn --genkey --secret ./pki/ta.key fi fi easyrsa gen-crl iptables -t nat -D POSTROUTING -s ${OVPN_SRV_NET}/${OVPN_SRV_MASK} ! -d ${OVPN_SRV_NET}/${OVPN_SRV_MASK} -j MASQUERADE || true iptables -t nat -A POSTROUTING -s ${OVPN_SRV_NET}/${OVPN_SRV_MASK} ! -d ${OVPN_SRV_NET}/${OVPN_SRV_MASK} -j MASQUERADE mkdir -p /dev/net if [ ! -c /dev/net/tun ]; then mknod /dev/net/tun c 10 200 fi if [ -f "/etc/openvpn/config/openvpn.conf" ]; then target_config="/etc/openvpn/config/openvpn.conf" else target_config="/etc/openvpn/setup/openvpn.conf" fi cp -f "$target_config" /etc/openvpn/openvpn.conf if [ ${OVPN_PASSWD_AUTH} = "true" ]; then mkdir -p /etc/openvpn/scripts/ cp -f /etc/openvpn/setup/auth.sh /etc/openvpn/scripts/auth.sh chmod +x /etc/openvpn/scripts/auth.sh echo "auth-user-pass-verify /etc/openvpn/scripts/auth.sh via-file" | tee -a /etc/openvpn/openvpn.conf echo "script-security 2" | tee -a /etc/openvpn/openvpn.conf echo "verify-client-cert require" | tee -a /etc/openvpn/openvpn.conf openvpn-user db-init --db.path=$EASY_RSA_LOC/pki/users.db fi [ -d $EASY_RSA_LOC/pki ] && chmod 755 $EASY_RSA_LOC/pki [ -f $EASY_RSA_LOC/pki/crl.pem ] && chmod 644 $EASY_RSA_LOC/pki/crl.pem mkdir -p /etc/openvpn/ccd openvpn --config /etc/openvpn/openvpn.conf --client-config-dir /etc/openvpn/ccd --server ${OVPN_SRV_NET} ${OVPN_SRV_MASK}