package tapnet; use strict; use base 'Exporter'; use Exporter; use testapi; our @EXPORT = qw/clone_host_file setup_tap_static get_host_dns/; sub clone_host_file { # copy a given file from the host into the guest. Mainly used # for networking config on tap tests. this is pretty crazy, but # SUSE do almost the same thing... my $file = shift; my $text = ''; open(my $fh, '<', $file); while (<$fh>) { $text .= $_; } # escape any " characters in the text... $text =~ s/"/\\"/g; assert_script_run "printf \"$text\" > $file"; # for debugging... assert_script_run "cat $file"; } sub setup_tap_static { # this is a common thing for tap tests, where we set up networking # for the system with a static IP address and possibly a specific # hostname my $ip = shift; my $hostname = shift || ""; if ($hostname) { # assigning output of split to a single-item array gives us just # the first split my ($short) = split(/\./, $hostname); # set hostname assert_script_run "hostnamectl set-hostname $hostname"; # add entry to /etc/hosts assert_script_run "echo '$ip $hostname $short' >> /etc/hosts"; } # use host's name servers (this is usually going to be correct, # tests which don't want this can overwrite resolv.conf) my @dns = get_host_dns(); my $dnstext = 'ipv4.dns "' . join(", ", @dns) . '"'; # bring up network # this gets us the name of the first connection in the list, # which should be what we want my $connection = script_output "nmcli --fields NAME con show | head -2 | tail -1"; assert_script_run "nmcli con mod '$connection' ipv4.method manual ipv4.addr $ip/24 ipv4.gateway 172.16.2.2 $dnstext"; assert_script_run "nmcli con down '$connection'"; assert_script_run "nmcli con up '$connection'"; # for debugging assert_script_run "nmcli -t con show '$connection'"; } sub get_host_dns { # get DNS server addresses from the host. Assumes host uses # systemd-resolved and doesn't use IPv6, for now my $result = `/usr/bin/resolvectl status | grep Servers | tail -1 | cut -d: -f2-`; # FIXME this is gonna break when we have IPv6 DNS servers on the # worker hosts my @forwards = split(' ', $result); return @forwards; } 1; # vim: set sw=4 et: