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Setup iptables block for EC2 #234

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Setup iptables block for EC2 #234

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26 changes: 26 additions & 0 deletions modules/profile/manifests/jenkins/agent.pp
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,32 @@
require => Class[docker],
}

package { 'iptables-persistent':
ensure => 'installed',
}

# docker versions < 19.03.3 don't provide the DOCKER-USER chain
exec { 'setup_docker_iptables_chain':
user => 'root',
unless => '/sbin/iptables -nL DOCKER-USER',
command => '/sbin/iptables -A DOCKER-USER -j RETURN && /sbin/iptables -I FORWARD -j DOCKER-USER && /sbin/iptables -N DOCKER-USER',
before => Exec['setup_iptables_ec2_block_for_docker'],
require => Class[docker],
}

exec { 'setup_iptables_ec2_block_for_docker':
user => 'root',
unless => '/sbin/iptables -nL DOCKER-USER | grep REJECT.*169.254.169.254',
command => '/sbin/iptables --insert DOCKER-USER --destination 169.254.169.254 --jump REJECT',
before => Exec['save_iptables_rule'],
require => Exec['setup_docker_iptables_chain'],
}

exec { 'save_iptables_rule':
user => 'root',
command => '/sbin/iptables-save > /etc/iptables/rules.v4',
require => [Exec['setup_iptables_ec2_block_for_docker'], Package['iptables-persistent']],
}

# required by cleanup_docker script
python::pip { 'docker':
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