Add first version of an OpenVPN role
This commit is contained in:
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13
roles/openvpn/README.md
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roles/openvpn/README.md
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# OpenVPN
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Installation and custom configuration of OpenVPN server.
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## Tasks
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Everything is in the `tasks/main.yml` file.
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## Available variables
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The full list of variables (with default values) can be found in `defaults/main.yml`.
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NOTE: Make sure you have already cloned shellpki in ~/GIT/
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3
roles/openvpn/defaults/main.yml
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3
roles/openvpn/defaults/main.yml
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---
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openvpn_lan: "192.168.42.0"
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openvpn_netmask: "255.255.255.0"
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215
roles/openvpn/files/check_openvpn.pl
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roles/openvpn/files/check_openvpn.pl
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#!/usr/bin/perl -w
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#######################################################################
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#
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# Copyright (c) 2007 Jaime Gascon Romero <jgascon@gmail.com>
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#
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# License Information:
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# $Id: check_openvpn.pl,v 1.1 2014/09/29 08:39:24 rdessort Exp $
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# $Revision: 1.1 $
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# Home Site: http://emergeworld.blogspot.com/
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# #####################################################################
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use diagnostics;
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use strict;
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use Net::Telnet ();
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use Getopt::Long qw(:config no_ignore_case);
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use vars qw($PROGNAME $VERSION);
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use lib "/usr/lib/nagios/plugins/";
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use utils qw(%ERRORS);
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$PROGNAME = "check_openvpn";
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$VERSION = '$Revision: 1.1 $';
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$ENV{'PATH'}='';
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$ENV{'BASH_ENV'}='';
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$ENV{'ENV'}='';
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my ($opt_h, $opt_H, $opt_p, $opt_P, $opt_t, $opt_i, $opt_n, $opt_c, $opt_w, $opt_C, $opt_r);
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sub print_help ();
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sub print_usage ();
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GetOptions
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("h" => \$opt_h, "help" => \$opt_h,
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"H=s" => \$opt_H, "host=s" => \$opt_H,
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"p=i" => \$opt_p, "port=i" => \$opt_p,
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"P=s" => \$opt_P, "password=s" => \$opt_P,
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"t=i" => \$opt_t, "timeout=i" => \$opt_t,
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"i" => \$opt_i, "ip" => \$opt_i,
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"n" => \$opt_n, "numeric" => \$opt_n,
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"c" => \$opt_c, "critical" => \$opt_c,
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"w" => \$opt_w, "warning" => \$opt_w,
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"C=s" => \$opt_C, "common_name=s" => \$opt_C,
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"r=s" => \$opt_r, "remote_ip=s" => \$opt_r,
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) or exit $ERRORS{'UNKNOWN'};
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# default values
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unless ( defined $opt_t ) {
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$opt_t = 10;
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}
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if ($opt_h) {print_help(); exit $ERRORS{'OK'};}
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if ( ! defined($opt_H) || ! defined($opt_p) ) {
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print_usage();
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exit $ERRORS{'UNKNOWN'}
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}
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my @lines;
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my @clients;
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my @clients_ip;
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my $t;
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eval {
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$t = new Net::Telnet (Timeout => $opt_t,
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Port => $opt_p,
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Prompt => '/END$/'
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);
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$t->open($opt_H);
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if ( defined $opt_P ) {
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$t->waitfor('/ENTER PASSWORD:$/');
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$t->print($opt_P);
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}
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$t->waitfor('/^$/');
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@lines = $t->cmd("status 2");
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$t->close;
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};
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if ($@) {
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print "OpenVPN Critical: Can't connect to server\n";
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exit $ERRORS{'CRITICAL'};
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}
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if (defined $opt_i || defined $opt_r) {
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foreach (@lines) {
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if ($_ =~ /CLIENT_LIST,.*,(\d+\.\d+\.\d+\.\d+):\d+,/) {
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push @clients_ip, $1;
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}
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}
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if (defined $opt_i) {
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print "OpenVPN OK: "."@clients_ip ";
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exit $ERRORS{'OK'};
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} elsif (defined $opt_r) {
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if ( ! grep /\b$opt_r\b/, @clients_ip) {
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if (defined $opt_c) {
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print "OpenVPN CRITICAL: $opt_r don't found";
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exit $ERRORS{'CRITICAL'};
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} else {
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print "OpenVPN WARNING: $opt_r don't found";
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exit $ERRORS{'WARNING'};
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}
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}
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print "OpenVPN OK: "."@clients_ip ";
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exit $ERRORS{'OK'};
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}
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}
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foreach (@lines) {
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if ($_ =~ /CLIENT_LIST,(.*),\d+\.\d+\.\d+\.\d+:\d+,/) {
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push @clients, $1;
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}
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}
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if (defined $opt_C) {
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if ( ! grep /\b$opt_C\b/, @clients) {
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if (defined $opt_c) {
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print "OpenVPN CRITICAL: $opt_C don't found";
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exit $ERRORS{'CRITICAL'};
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} else {
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print "OpenVPN WARNING: $opt_C don't found";
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exit $ERRORS{'WARNING'};
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}
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}
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}
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if (defined $opt_n) {
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print "OpenVPN OK: ".@clients." connected clients.";
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exit $ERRORS{'OK'};
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}
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print "OpenVPN OK: "."@clients ";
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exit $ERRORS{'OK'};
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#######################################################################
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###### Subroutines ####################################################
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sub print_usage() {
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print "Usage: $PROGNAME -H | --host <IP or hostname> -p | --port <port number> [-P | --password] <password> [-t | --timeout] <timeout in seconds>
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[-i | --ip] [-n | --numeric] [-C | --common_name] <common_name> [-r | --remote_ip] <remote_ip> [-c | --critical] [-w | --warning]\n\n";
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print " $PROGNAME [-h | --help]\n";
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}
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sub print_help() {
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print "$PROGNAME $VERSION\n\n";
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print "Copyright (c) 2007 Jaime Gascon Romero
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Nagios plugin to check the clients connected to a openvpn server.
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";
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print_usage();
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print "
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-H | --host
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IP address or hostname of the openvpn server.
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-p | --port
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Management port interface of the openvpn server.
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-P | --password
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Password for the management interface of the openvpn server.
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-t | --timeout
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Timeout for the connection attempt. Optional, default 10 seconds.
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Optional parameters
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===================
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-i | --ip
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Prints the IP address of the remote client instead of the common name.
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-n | --numeric
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Prints the number of clients connected to the openvpn server.
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Matching Parameters
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===================
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-C | --common_name
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The common name, as it is specified in the client certificate, who is wanted to check.
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-r | --remote_ip
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The client remote ip address who is wanted to check.
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-c | --critical
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Exits with CRITICAL status if the client specified by the common name or the remote ip address is not connected.
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-w | --warning
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Exits with WARNING status if the client specified by the common name or the remote ip address is not connected.
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Other Parameters
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================
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-h | --help
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Show this help.
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";
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}
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# vim:sts=2:sw=2:ts=2:et
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1
roles/openvpn/files/shellpki
Symbolic link
1
roles/openvpn/files/shellpki
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/home/tpilat/GIT/shellpki/
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1
roles/openvpn/files/sudo_shellpki
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1
roles/openvpn/files/sudo_shellpki
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%shellpki ALL = (root) /usr/local/sbin/shellpki
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5
roles/openvpn/handlers/main.yml
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5
roles/openvpn/handlers/main.yml
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---
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- name: restart openvpn
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service:
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name: openvpn
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state: restarted
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roles/openvpn/tasks/main.yml
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110
roles/openvpn/tasks/main.yml
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---
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- name: Install OpenVPN package
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openbsd_pkg:
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name: "openvpn--"
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tags:
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- openvpn
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- name: Create /etc/openvpn directory
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file:
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path: /etc/openvpn
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state: directory
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owner: "root"
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group: "wheel"
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mode: "0755"
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tags:
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- openvpn
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- name: Deploy OpenVPN configuration
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template:
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src: "server.conf.j2"
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dest: "/etc/openvpn/server.conf"
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mode: "0600"
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notify: restart openvpn
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tags:
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- openvpn
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- name: Enabling OpenVPN
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service:
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name: openvpn
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enabled: yes
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tags:
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- openvpn
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- name: Set OpenVPN flag
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shell: 'rcctl set openvpn flags "--config /etc/openvpn/server.conf"'
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tags:
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- openvpn
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- name: Create shellpki user
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user:
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name: "_shellpki"
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system: yes
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state: present
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system: yes
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home: "/etc/shellpki/"
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shell: "/sbin/nologin"
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tags:
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- openvpn
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- name: Copy some shellpki files
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copy:
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src: "{{ item.src }}"
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dest: "{{ item.dest }}"
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owner: root
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group: wheel
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mode: "{{ item.mode }}"
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force: yes
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with_items:
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- { src: 'files/shellpki/openssl.cnf', dest: '/etc/shellpki/openssl.cnf', mode: '0640' }
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- { src: 'files/shellpki/shellpki', dest: '/usr/local/sbin/shellpki', mode: '0755' }
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tags:
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- openvpn
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- name: Deploy DH PARAMETERS
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template:
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src: "dh2048.pem.j2"
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dest: "/etc/shellpki/dh2048.pem"
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mode: "0600"
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tags:
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- openvpn
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- name: Create /etc/sudoers.d directory
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file:
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path: /etc/sudoers.d
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state: directory
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owner: "root"
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group: "wheel"
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mode: "0755"
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tags:
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- openvpn
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- name: Include /etc/sudoers.d in sudoers configuration file
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lineinfile:
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path: /etc/sudoers
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line: '#includedir /etc/sudoers.d'
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tags:
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- openvpn
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- name: Verify shellpki sudoers file presence
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copy:
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src: "sudo_shellpki"
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dest: "/etc/sudoers.d/shellpki"
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force: true
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mode: "0440"
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validate: '/usr/local/sbin/visudo -cf %s'
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tags:
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- openvpn
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- name: Copy check_openvpn
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copy:
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src: "{{ item.src }}"
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dest: "{{ item.dest }}"
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owner: root
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group: wheel
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mode: "{{ item.mode }}"
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force: yes
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with_items:
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- { src: 'files/check_openvpn.pl', dest: '/usr/local/libexec/nagios/plugins/check_openvpn.pl', mode: '0755' }
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tags:
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- openvpn
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8
roles/openvpn/templates/dh2048.pem.j2
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8
roles/openvpn/templates/dh2048.pem.j2
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-----BEGIN DH PARAMETERS-----
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MIIBCAKCAQEAuimweC/f5W/AIIFhLX256Bi5IU+AkN9sKZ9sxGx0xc3J8NwIBnEP
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R/2RgclJqJ8OodY70zeDHNLDyc01crGvihuupiWVlvQxS4osdhfdM+GoV9pcmCVr
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TRTybsUPkkm4rQ/SC7I2MxiYnXwDrrYnpMvBDaRZjoHlgTKjOGoYSd+DIDZSFKkv
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ASkXQkIC9FpvjnxfW5gtzzm6NheqgYUI2Y2QiqM6BmGVZiPcqyUpbWvRCcZLoPa2
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Z+FV9LxE4J7CX0ilTJXXhs3RaMlG8qZha3l0hEL4SAZp5xn74Ej/9hA5cWqnKEOQ
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aLfwADI4rPe9uTu9Qnw87DgM2tQeETBlmwIBAg==
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-----END DH PARAMETERS-----
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26
roles/openvpn/templates/server.conf.j2
Normal file
26
roles/openvpn/templates/server.conf.j2
Normal file
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user nobody
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group nogroup
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local {{ ansible_default_ipv4.address }}
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port 1194
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proto udp
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dev tun
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mode server
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keepalive 10 120
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cipher AES-128-CBC # AES
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#comp-lzo
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# compress (à partir d'OpenVPN 2.4)
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||||||
|
|
||||||
|
persist-key
|
||||||
|
persist-tun
|
||||||
|
|
||||||
|
status /var/log/openvpn-status.log
|
||||||
|
log-append /var/log/openvpn.log
|
||||||
|
|
||||||
|
ca /etc/shellpki/cacert.pem
|
||||||
|
cert /etc/shellpki/certs/{{ ansible_fqdn }}.crt
|
||||||
|
key /etc/shellpki/private/{{ ansible_fqdn }}.key
|
||||||
|
dh /etc/shellpki/dh2048.pem
|
||||||
|
|
||||||
|
server {{ openvpn_lan }} {{ openvpn_netmask }}
|
Loading…
Reference in a new issue