Ansible roles
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---
# Should iptables be managed
iptables_manage: yes
# Default rules
iptables_default_head: |
-P INPUT DROP
-P FORWARD DROP
-P OUTPUT ACCEPT
-N LOGDENY
-A LOGDENY -m limit --limit 10/s -j LOG --log-prefix 'Firewall: '
-A LOGDENY -j REJECT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -m state --state INVALID -j DROP
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 22 -s {{ trusted_ip | default(['0.0.0.0/0']) | join(',') }} -j ACCEPT
-A INPUT -p icmp --icmp-type echo-request -j ACCEPT
-A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -m state --state INVALID -j DROP
iptables_default_tail: |
-A INPUT -j LOGDENY
-A FORWARD -j LOGDENY
iptables_custom_rules: []
# Example:
# iptables_custom_rules:
# - name: open_port_12345 # 'iptables_custom_rules_' will be prepended to this
# rules: "-A INPUT -p tcp --dport 12345 -j ACCEPT"
# state: present
# weight: 40
# ipversion: 4
# table: filter
#
# NOTE: 'name', 'rules' and 'state' are required, others are optional.
# By default this role deletes all iptables rules which are not managed by Ansible.
# Set this to 'yes', if you want the role to keep unmanaged rules.
iptables_keep_unmanaged: no
...