*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]

# Declaring our chains
-N DEUXFLEURS-TRUSTED-NET
-N DEUXFLEURS-TRUSTED-PORT

# Internet Control Message Protocol
# (required)
-A INPUT -p icmp -j ACCEPT
-A INPUT -p ipv6-icmp -j ACCEPT

# Administration
-A INPUT -p tcp --dport 22 -j ACCEPT

# Cluster
{% for selected_host in groups['cluster_nodes'] %}
-A INPUT -s {{ hostvars[selected_host]['ipv6'] }} -j ACCEPT
{% endfor %}

# Local
-A INPUT -i docker0 -j ACCEPT
-A INPUT -s ::1/128 -j ACCEPT
-A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT

# Who is part of our trusted net?
# Max@Bruxelles
-A DEUXFLEURS-TRUSTED-NET -s 2a02:1811:3606:4800::0/64 -j DEUXFLEURS-TRUSTED-PORT
# Max@Suresnes
-A DEUXFLEURS-TRUSTED-NET -s 2a01:e0a:183:7be2::0/64 -j DEUXFLEURS-TRUSTED-PORT
# Max@OVH
-A DEUXFLEURS-TRUSTED-NET -s 2001:41d0:a:307c:ac7c::/64 -j DEUXFLEURS-TRUSTED-PORT
# LX@Rennes
-A DEUXFLEURS-TRUSTED-NET -s 2a02:8428:81d6:6901::0/64 -j DEUXFLEURS-TRUSTED-PORT
# ADRN@Gandi
-A DEUXFLEURS-TRUSTED-NET -s 2001:4b98:dc0:41:216:3eff:fe9b:1afb/128 -j DEUXFLEURS-TRUSTED-PORT
# Quentin@Rennes
-A DEUXFLEURS-TRUSTED-NET -s 2a01:e35:2fdc:dbe0::0/64 -j DEUXFLEURS-TRUSTED-PORT
# Erwan@Rennes
-A DEUXFLEURS-TRUSTED-NET -s 2a01:e0a:260:b5b0::0/64 -j DEUXFLEURS-TRUSTED-PORT
# Source address is not trusted
-A DEUXFLEURS-TRUSTED-NET -j RETURN

# What can do our trusted net?
# Access garage basically
-A DEUXFLEURS-TRUSTED-PORT -p tcp --dport 3901 -j ACCEPT
# Port is not allowed
-A DEUXFLEURS-TRUSTED-PORT -j RETURN

# Let's check if the user comes from our trusted network
-A INPUT -j DEUXFLEURS-TRUSTED-NET

COMMIT

*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
COMMIT

*mangle
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
COMMIT