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---
- hosts: OSEv3
gather_facts: False
become: True
tasks:
- name: Save iptables rules to a backup file
when: openshift_use_flannel|default(False)|bool
shell: iptables-save > /etc/sysconfig/iptables.orig-$(date +%Y%m%d%H%M%S)
# Enable iptables service on app nodes to persist custom rules (flannel SDN)
# FIXME(bogdando) w/a https://bugzilla.redhat.com/show_bug.cgi?id=1490820
- hosts: app
gather_facts: False
become: True
vars:
os_firewall_allow:
- service: dnsmasq tcp
port: 53/tcp
- service: dnsmasq udp
port: 53/udp
tasks:
- when: openshift_use_flannel|default(False)|bool
block:
- include_role:
name: os_firewall
- include_role:
name: lib_os_firewall
- name: set allow rules for dnsmasq
os_firewall_manage_iptables:
name: "{{ item.service }}"
action: add
protocol: "{{ item.port.split('/')[1] }}"
port: "{{ item.port.split('/')[0] }}"
with_items: "{{ os_firewall_allow }}"
- hosts: OSEv3
gather_facts: False
become: True
tasks:
- name: Apply post-install iptables hacks for Flannel SDN (the best effort)
when: openshift_use_flannel|default(False)|bool
block:
- name: set allow/masquerade rules for for flannel/docker
shell: >-
(iptables-save | grep -q custom-flannel-docker-1) ||
iptables -A DOCKER -w
-p all -j ACCEPT
-m comment --comment "custom-flannel-docker-1";
(iptables-save | grep -q custom-flannel-docker-2) ||
iptables -t nat -A POSTROUTING -w
-o {{flannel_interface|default('eth1')}}
-m comment --comment "custom-flannel-docker-2"
-j MASQUERADE
# NOTE(bogdando) the rules will not be restored, when iptables service unit is disabled & masked
- name: Persist in-memory iptables rules (w/o dynamic KUBE rules)
shell: iptables-save | grep -v KUBE > /etc/sysconfig/iptables
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