From 27b7829031f9415f29089138b384fb1d9fe9f2c7 Mon Sep 17 00:00:00 2001
From: Laurent Hoss <laurent.hoss@gmail.com>
Date: Thu, 8 Feb 2018 19:53:26 +0100
Subject: [PATCH] Enable apt pinning (#81)

* Enable APT pinning

* Allow overriding a different upstream server for packages

* Preserve compatibility with people still using 'mesos=' in the variables

* Update EPEL URLs with default unversioned package

* Update for Ansible syntax change
---
 README.md               |  5 +++--
 defaults/main.yml       | 11 +++++++----
 tasks/Debian.yml        |  6 ++++++
 templates/mesos.pref.j2 |  3 +++
 vars/RedHat.yml         |  5 -----
 5 files changed, 19 insertions(+), 11 deletions(-)
 create mode 100644 templates/mesos.pref.j2

diff --git a/README.md b/README.md
index 52ef646..628eacf 100644
--- a/README.md
+++ b/README.md
@@ -37,10 +37,11 @@ mesos_version: "1.0.1"
 
 # Debian
 mesos_package_version: "2.0.93"
-mesosphere_apt_url: "http://repos.mesosphere.com/{{ ansible_distribution | lower }}"
 mesos_os_distribution: "{{ ansible_distribution | lower }}"
 mesos_os_version: "{{ ansible_distribution_version.split('.') | join('') }}"
-mesos_apt_package: "mesos={{ mesos_version }}-{{ mesos_package_version }}.{{ mesos_os_distribution }}{{ mesos_os_version }}"
+mesos_apt_url: "http://{{ mesos_repo_host }}/{{ ansible_distribution | lower }}"
+mesos_package_full_version: "{{ mesos_version }}-{{ mesos_package_version }}.{{ mesos_os_distribution }}{{ mesos_os_version }}"
+mesos_apt_package: "mesos={{ mesos_package_full_version }}"
 
 # RedHat: EPEL and Mesosphere yum repositories URL
 epel_repo: "https://dl.fedoraproject.org/pub/epel/{{ os_version_major }}/{{ ansible_architecture }}/{{ epel_releases[os_version_major] }}"
diff --git a/defaults/main.yml b/defaults/main.yml
index 8eecd86..2533668 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -2,16 +2,19 @@
 mesos_install_mode: "master" # {master|slave|master-slave}
 mesos_version: "1.1.0"
 
+mesos_repo_host: repos.mesosphere.com
+
 # Debian
 mesos_package_version: "2.0.107"
-mesosphere_apt_url: "http://repos.mesosphere.com/{{ ansible_distribution | lower }}"
 mesos_os_distribution: "{{ ansible_distribution | lower }}"
 mesos_os_version: "{{ ansible_distribution_version.split('.') | join('') }}"
-mesos_apt_package: "mesos={{ mesos_version }}-{{ mesos_package_version }}.{{ mesos_os_distribution }}{{ mesos_os_version }}"
+mesos_package_full_version: "{{ mesos_version }}-{{ mesos_package_version }}.{{ mesos_os_distribution }}{{ mesos_os_version }}"
+mesosphere_apt_url: "http://{{ mesos_repo_host }}/{{ ansible_distribution | lower }}"
+mesos_apt_package: "mesos={{ mesos_package_full_version }}"
 
 # RedHat: EPEL and Mesosphere yum repositories URL
-epel_repo: "https://dl.fedoraproject.org/pub/epel/{{ os_version_major }}/{{ ansible_architecture }}/{{ epel_releases[os_version_major] }}"
-mesosphere_yum_repo: "https://repos.mesosphere.com/el/{{ os_version_major }}/noarch/RPMS/{{ mesosphere_releases[os_version_major] }}"
+epel_repo: "https://dl.fedoraproject.org/pub/epel/epel-release-latest-{{ os_version_major }}.noarch.rpm"
+mesosphere_yum_repo: "https://{{ mesos_repo_host }}/el/{{ os_version_major }}/noarch/RPMS/{{ mesosphere_releases[os_version_major] }}"
 
 # conf file settings
 mesos_cluster_name: "mesos_cluster"
diff --git a/tasks/Debian.yml b/tasks/Debian.yml
index 569445b..60e0b20 100644
--- a/tasks/Debian.yml
+++ b/tasks/Debian.yml
@@ -5,6 +5,12 @@
 - name: Add mesosphere repo
   apt_repository: repo='deb {{ mesosphere_apt_url }} {{ ansible_distribution_release | lower }} main' state=present update_cache=yes
 
+- name: Pin Mesos version
+  template:
+    src: mesos.pref.j2
+    dest: /etc/apt/preferences.d/mesos.pref
+  when: mesos_apt_pin_priority is defined
+
 - name: Install Debian OS packages
   apt: pkg={{ item }} state=present update_cache=yes cache_valid_time=3600
   with_items:
diff --git a/templates/mesos.pref.j2 b/templates/mesos.pref.j2
new file mode 100644
index 0000000..fe03412
--- /dev/null
+++ b/templates/mesos.pref.j2
@@ -0,0 +1,3 @@
+Package: mesos
+Pin: version {{ mesos_package_full_version }}
+Pin-Priority: {{ mesos_apt_pin_priority }}
diff --git a/vars/RedHat.yml b/vars/RedHat.yml
index f5985ac..1d3d3c0 100644
--- a/vars/RedHat.yml
+++ b/vars/RedHat.yml
@@ -1,10 +1,5 @@
 os_version_major: "{{ ansible_distribution_major_version }}"
 
-# EPEL repository released packaged per OS version
-epel_releases:
-  '6': 'epel-release-6-8.noarch.rpm'
-  '7': 'e/epel-release-7-10.noarch.rpm'
-
 # Mesosphere released packaged per OS version
 mesosphere_releases:
   '6': 'mesosphere-el-repo-6-3.noarch.rpm'