refactor firewall management into new role

- Add os_firewall role
- Remove firewall settings from base_os, add wait task to os_firewall
- Added a iptables firewall module for maintaining the following (in a mostly
  naive manner):
  - ensure the OPENSHIFT_ALLOW chain is defined
  - ensure that there is a jump rule in the INPUT chain for OPENSHIFT_ALLOW
  - adds or removes entries from the OPENSHIFT_ALLOW chain
  - issues '/usr/libexec/iptables/iptables.init save' when rules are changed
- Limitations of iptables firewall module
  - only allows setting of ports/protocols to open
  - no testing on ipv6 support
- made os_firewall a dependency of openshift_common
- Hardcoded openshift_common to use iptables (through the vars directory)
  until upstream support is in place for firewalld

1 files changed, 13 insertions, 0 deletions

diff --git a/roles/os_firewall/meta/main.yml b/roles/os_firewall/meta/main.yml
new file mode 100644
index 000000000..e431f531c
--- /dev/null
+++ b/roles/os_firewall/meta/main.yml
@@ -0,0 +1,13 @@
+galaxy_info:
+  author: Jason DeTiberus
+  description: os_firewall
+  company: Red Hat, Inc.
+  license: ASL 2.0
+  min_ansible_version: 1.7
+  platforms:
+  - name: EL
+    versions:
+    - 7
+  categories:
+  - system
+dependencies: []