itamae/cookbooks/consul/attributes.rb

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# -------------------------------------------
# Specifying the default settings:
# -------------------------------------------
case run_command('grep VERSION_ID /etc/os-release | awk -F\" \'{print $2}\'').stdout.chomp
when "20.04"
cmd = 'LANG=C ip a | grep "inet " | grep -v -E "(127|172)" | cut -d" " -f6 | perl -pe "s/\/.+//g"'
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when "18.04"
cmd = 'LANG=C /sbin/ifconfig | grep "inet " | grep -v -E "(127|172)" | cut -d" " -f10'
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else
cmd = 'LANG=C /sbin/ifconfig | grep "inet addr" | grep -v -E "(127|172)" | awk "{print $2;}" | cut -d: -f2 | cut -f 1 -d " " | tail -1'
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end
ipaddr = run_command(cmd).stdout.chomp
cmd = 'grep nameserver /run/systemd/resolve/resolv.conf | grep -v 8.8.8.8 | grep -v 127.0.0.1 | perl -pe "s/nameserver //g" | perl -pe "s/\n/ /g"'
dns = run_command(cmd).stdout.chomp
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node.reverse_merge!({
'consul' => {
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'manager' => false,
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'manager_hosts' => '["192.168.10.110", "192.168.10.101", "192.168.10.111", "192.168.10.115"]',
'ipaddr' => ipaddr,
'dns' => dns
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}
})