Use custom iptables config for jenkins

inventory/host_vars/jenkins.fedorainfracloud.org

@@ -21,7 +21,7 @@ jenkins_master: True
 
 tcp_ports: [ 80 ]
 
-custom_rules: [
+custom_nat_rules: [
     # Redirect port 80 to 8080, which is used by jenkins
-    '-A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080',
+    '-A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080',
  ]

roles/base/templates/iptables/iptables.jenkins.fedorainfracloud.org

@@ -0,0 +1,90 @@
+# {{ ansible_managed }}
+
+*nat
+:PREROUTING ACCEPT [0:0]
+:INPUT ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+:POSTROUTING ACCEPT [0:0]
+
+{% if custom_nat_rules is defined %}
+{% for rule in custom_nat_rules %}
+{{ rule }}
+{% endfor %}
+{% endif %}
+
+COMMIT
+
+
+*filter
+:INPUT ACCEPT [0:0]
+:FORWARD ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+
+# allow ping and traceroute
+-A INPUT -p icmp -j ACCEPT
+
+# localhost is fine
+-A INPUT -i lo -j ACCEPT
+
+# Established connections allowed
+-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
+-A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
+
+# allow ssh - always
+-A INPUT -m conntrack --ctstate NEW -m tcp -p tcp --dport 22 -j ACCEPT
+
+# for nrpe - allow it from nocs
+-A INPUT -p tcp -m tcp --dport 5666 -s 192.168.1.10 -j ACCEPT
+# FIXME - this is the global nat-ip and we need the noc01-specific ip
+-A INPUT -p tcp -m tcp --dport 5666  -s 209.132.181.102 -j ACCEPT
+-A INPUT -p tcp -m tcp --dport 5666  -s 209.132.181.35 -j ACCEPT
+-A INPUT -p tcp -m tcp --dport 5666 -s 10.5.126.41 -j ACCEPT
+
+{% if env != 'staging' and datacenter == 'phx2' and inventory_hostname not in groups['staging-friendly'] %}
+#
+# In the phx2 datacenter, both production and staging hosts are in the same 
+# subnet/vlan. We want production hosts to reject connectons from staging group hosts
+# to prevent them from interfering with production. There are however a few hosts in 
+# production we have marked 'staging-friendly' that we do allow staging to talk to for 
+# mostly read-only data they need.
+#
+{% for host in groups['staging'] %}
+{% if 'eth0_ip' in hostvars[host] %}# {{ host }}
+-A INPUT -s {{ hostvars[host]['eth0_ip'] }} -j REJECT --reject-with icmp-host-prohibited
+{% else %}# {{ host }} has no 'eth0_ip' listed
+{% endif %}
+{% endfor %}
+{% endif %}
+
+# if the host declares a fedmsg-enabled wsgi app, open ports for it
+{% if wsgi_fedmsg_service is defined %}
+{% for i in range(wsgi_procs * wsgi_threads) %}
+-A INPUT -p tcp -m tcp --dport 30{{ '%02d' % i }} -j ACCEPT
+{% endfor %}
+{% endif %}
+
+# if the host/group defines incoming tcp_ports - allow them
+{% if tcp_ports is defined %}
+{% for port in tcp_ports %}
+-A INPUT -p tcp -m tcp --dport {{ port }} -j ACCEPT
+{% endfor %}
+{% endif %}
+
+# if the host/group defines incoming udp_ports - allow them
+{% if udp_ports is defined %}
+{% for port in udp_ports %}
+-A INPUT -p udp -m udp --dport {{ port }} -j ACCEPT
+{% endfor %}
+{% endif %}
+
+# if there are custom rules - put them in as-is
+{% if custom_rules is defined %}
+{% for rule in custom_rules %}
+{{ rule }}
+{% endfor %}
+{% endif %}
+
+# otherwise kick everything out
+-A INPUT -j REJECT --reject-with icmp-host-prohibited
+-A FORWARD -j REJECT --reject-with icmp-host-prohibited
+COMMIT