Support of only create configuration file of an (existing) installation to create keys or get key configuration.

install_openvpn.sh

@@ -210,7 +210,19 @@ else
 fi
 
 echo ""
+echo ""
+echo -e "\033[32m==========\033[m"
+echo ""
+echononl "Only create Configuration file (yes/no) [no]: "
+read OK
+echo ""
+if [[ "$(trim ${OK,,})" = "yes" ]] ; then
+   _only_create_config_file=true
+else
+   _only_create_config_file=false
+fi
 
+echo ""
 echo ""
 echo -e "\033[32m--\033[m"
 echo "Common parameters"
@@ -292,8 +304,10 @@ echo ""
 echo ""
 echo "Insert OpenVPN Base Directory for Service '$OPENVPN_NAME'"
 echo ""
+if ! $_only_create_config_file ; then
    echo "   Note: must be a subdirectory of '/etc/openvpn'"
    echo ""
+fi
 OPENVPN_BASE_DIR=""
 
 echononl "OpenVPN Base Directory [${DEFAULT_OPENVPN_BASE_DIR}]: "
@@ -302,7 +316,7 @@ while [[ "X${OPENVPN_BASE_DIR}" = "X" ]]; do
    if [[ "X$OPENVPN_BASE_DIR" = "X" ]]; then
       OPENVPN_BASE_DIR="$DEFAULT_OPENVPN_BASE_DIR"
    else
-      if [[ ! "$(dirname ${OPENVPN_BASE_DIR})" = "/etc/openvpn" ]]; then
+      if [[ ! "$(dirname ${OPENVPN_BASE_DIR})" = "/etc/openvpn" ]] && ! $_only_create_config_file ; then
          echo -e "\n\t\033[33m\033[1mGiven entry is NOT a subdirectory of '/etc/openvpn'. Retry..\033[m\n"
          echononl "OpenVPN Base Directory [${DEFAULT_OPENVPN_BASE_DIR}]: "
          OPENVPN_BASE_DIR=""
@@ -431,12 +445,19 @@ fi
 
 KEY_CN=""
 echo ""
+echo ""
+echo -e "   Type \"\033[33mNone\033[m\" if no CN Prefix should be used"
+echo ""
 echononl "KEY_CN [${DEFAULT_KEY_CN}]: "
 read KEY_CN
 if [[ "X$KEY_CN" = "X" ]]; then
    KEY_CN="$DEFAULT_KEY_CN"
+   DEFAULT_KEY_ALTNAMES="$KEY_CN"
 else
    DEFAULT_KEY_ALTNAMES="$KEY_CN"
+   if [[ "$(trim ${KEY_CN,,})" = 'none' ]] ; then
+      KEY_CN=""
+   fi
 fi
 
 KEY_ALTNAMES=""
@@ -446,6 +467,9 @@ read KEY_ALTNAMES
 if [[ "X$KEY_ALTNAMES" = "X" ]]; then
    KEY_ALTNAMES="$DEFAULT_KEY_ALTNAMES"
 fi
+if [[ "$(trim ${KEY_ALTNAMES,,})" = 'none' ]] ; then
+   KEY_ALTNAMES=""
+fi
 
 echo ""
 echo -e "\033[32m--\033[m"
@@ -507,7 +531,7 @@ echononl "Networks to push from server: "
 while [[ "X$REMOTE_NETWORKS" = "X" ]] ; do
    read REMOTE_NETWORKS
    _to_lower_remote_networks="$(trim ${REMOTE_NETWORKS,,})"
-   if [[ "X$_to_lower_remote_networks" = "none" ]]; then
+   if [[ "$_to_lower_remote_networks" = "none" ]]; then
       REMOTE_NETWORKS=""
       break
    fi
@@ -626,7 +650,11 @@ done
 
 echo ""
 echo ""
+if $_only_create_config_file ; then
+   echo -e "\033[1;32mCreate Configuration file for OpenVPN service \033[1;37m$OPENVPN_NAME\033[m "
+else
    echo -e "\033[1;32mSettings for installation of \033[1;37mOpenVPN\033[m"
+fi
 echo ""
 echo -e   "\tOpenVPN IP-Address/Hostname.........: $OPENVPN_SERVER"
 echo -e   "\tOpenVPN Server.Port.................: $SERVER_PORT"
@@ -648,9 +676,17 @@ echo -e   "\tKEY_EMAIL...........................: $KEY_EMAIL"
 echo -e   "\tKEY_OU..............................: $KEY_OU"
 echo ""
 echo -e   "\tKEY_NAME............................: $KEY_NAME"
-echo -e   "\tKEY_CN..............................: $KEY_CN"
+if [[ -n "$KEY_CN" ]] ; then
+   echo -e   "\tKEY_CN (Prefix).....................: $KEY_CN"
+else
+   echo -e   "\tKEY_CN (Prefix).....................: \033[33mNone\033[m"
+fi
 echo ""
-echo -e   "\tKEY_ALTNAMES........................: $KEY_ALTNAMES"
+if [[ -n "$KEY_ALTNAMES" ]] ; then
+   echo -e   "\tKEY_ALTNAMES (Prefix)...............: $KEY_ALTNAMES"
+else
+   echo -e   "\tKEY_ALTNAMES (Prefix)...............: \033[33mNone\033[m"
+fi
 echo ""
 echo -e   "\tOpenVPN Network.....................: $OPENVPN_NETWORK"
 echo -e   "\tOpenVPN Server IP-Address...........: $OPENVPN_SERVER_IP"
@@ -748,9 +784,29 @@ KEY_EMAIL="${EMAIL_PREFIX}\\@${EMAIL_DOMAIN}"
 KEY_OU="$KEY_OU"
 
 KEY_NAME="$KEY_NAME"
+EOF
+if [[ -n "$KEY_CN" ]] ; then
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 KEY_CN="$KEY_CN"
+EOF
+else
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
+KEY_CN="none"
 
+EOF
+fi
+
+if [[ -n "$KEY_ALTNAMES" ]] ; then
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 KEY_ALTNAMES="$KEY_ALTNAMES"
+EOF
+else
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
+KEY_ALTNAMES="none"
+EOF
+fi
+
+cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 
 
 # ---
@@ -761,12 +817,49 @@ OPENVPN_NETWORK="$OPENVPN_NETWORK"
 
 SERVER_CIPHER="$SERVER_CIPHER"
 
+EOF
+
+if [[ ${#REMOTE_NETWORK_ARR[@]} -gt 0 ]] ; then
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 REMOTE_NETWORKS="${REMOTE_NETWORK_ARR[@]}"
+EOF
+else
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
+REMOTE_NETWORKS="none"
+EOF
+fi
+
+if [[ -n "$DNS_SERVER" ]] ; then
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 DNS_SERVER="$DNS_SERVER"
+EOF
+else
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
+DNS_SERVER="none"
+EOF
+fi
+
+if [[ -n "$DEFAULT_DOMAIN" ]] ; then
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 DEFAULT_DOMAIN="$DEFAULT_DOMAIN"
 
+EOF
+else
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
+DEFAULT_DOMAIN="none"
+
+EOF
+fi
+
+if [[ ${#LOCAL_NETWORK_ARR[@]} -gt 0 ]]; then
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
 LOCAL_NETWORKS="${LOCAL_NETWORK_ARR[@]}"
 EOF
+else
+   cat << EOF >> $_openvpn_name_conf_file 2> $log_file
+LOCAL_NETWORKS="none"
+EOF
+fi
 if [[ $? -eq 0 ]] ; then
    echo_ok
 else
@@ -775,6 +868,12 @@ else
 fi
 
 
+if $_only_create_config_file ; then
+   echo ""
+   clean_up 0
+fi
+
+
 
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