From 8bcc1e129ddfbf6294a951130ec94c45f249a74f Mon Sep 17 00:00:00 2001
From: Zachary Seguin <ztseguin@csclub.uwaterloo.ca>
Date: Fri, 26 May 2017 23:38:40 -0400
Subject: [PATCH] Setup /etc/hosts file

---
 roles/core/files/resolv.conf | 11 +++++++++++
 roles/core/tasks/main.yml    | 34 +++++++++++++++++++++++++++++++++-
 roles/core/templates/hosts   | 18 ++++++++++++++++++
 3 files changed, 62 insertions(+), 1 deletion(-)
 create mode 100644 roles/core/files/resolv.conf
 create mode 100644 roles/core/templates/hosts

diff --git a/roles/core/files/resolv.conf b/roles/core/files/resolv.conf
new file mode 100644
index 0000000..0c30b76
--- /dev/null
+++ b/roles/core/files/resolv.conf
@@ -0,0 +1,11 @@
+search      csclub.uwaterloo.ca uwaterloo.ca
+
+# CSC Nameservers
+nameserver  2620:101:f000:4901:c5c::4
+nameserver  2620:101:f000:7300:c5c::20
+nameserver  129.97.134.4
+nameserver  129.97.18.20
+
+# IST Anycast (fallback)
+nameserver  129.97.2.1
+nameserver  129.97.2.2
diff --git a/roles/core/tasks/main.yml b/roles/core/tasks/main.yml
index 992c38d..a049aaf 100644
--- a/roles/core/tasks/main.yml
+++ b/roles/core/tasks/main.yml
@@ -1,4 +1,33 @@
 ---
+-   name: Update /etc/hosts
+    template: src=hosts
+              dest=/etc/hosts
+
+-   name: Disable resolvconf
+    service: name={{ item }} state=stopped enabled=no
+    with_items:
+       - resolvconf
+       - systemd-resolved
+    ignore_errors: yes
+
+-   name: Remove resolvconf
+    package:
+       name: resolvconf
+       state: absent
+
+-   name: Remove immutable on resolv.conf
+    command: chattr -i /etc/resolv.conf
+    ignore_errors: yes
+
+-   name: Copy resolv.conf
+    copy:
+       src: resolv.conf
+       dest: /etc/resolv.conf
+       #attributes: 'ie'
+
+-   name: Set immutable on resolv.conf
+    command: chattr +i /etc/resolv.conf
+
 -   name: Install root dotfiles
     copy: src={{ item.src }} dest={{ item.dest }} backup=no
     with_items:
@@ -116,7 +145,10 @@
     apt: name=gnupg state=latest
 
 -   name: Install rsyslog
-    apt: name=rsyslog state=latest
+    apt: name={{ item }} state=latest
+    with_items:
+       - rsyslog
+       - rsyslog-gnutls
 
     # TODO: Configure logging
 
diff --git a/roles/core/templates/hosts b/roles/core/templates/hosts
new file mode 100644
index 0000000..f2929e8
--- /dev/null
+++ b/roles/core/templates/hosts
@@ -0,0 +1,18 @@
+# localhost
+127.0.0.1   localhost
+::1         localhost
+
+# IPv6
+fe00::0     ip6-localnet
+ff00::0     ip6-multicast
+ff02::1     ip6-allnodes
+ff02::2     ip6-allrouters
+ff02::3     ip6-allhosts
+
+# {{ ansible_hostname }}
+{% if ansible_default_ipv4.address is defined %}
+{{ ansible_default_ipv4.address }}     {{ ansible_fqdn }} {{ ansible_hostname }}
+{% endif %}
+{% if ansible_default_ipv6.address is defined %}
+{{ ansible_default_ipv6.address }}     {{ ansible_fqdn }} {{ ansible_hostname }}
+{% endif %}