initial commit

Author: Colin Hoglund

README.md

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+In addition to installing Python, this role also installs `pip` and `virtualenv` globally.
+
+Install default OS package:
+```
+---
+
+- hosts: all
+  become: true
+  roles:
+    - python
+```
+
+Install custom package:
+```
+---
+
+- hosts: all
+  become: true
+  vars:
+    python_apt_repo: deb http://example.repo/ trusty main
+    python_apt_key_url: https://example.repo/Release.key
+    python_package_name: python-custom
+  roles:
+    - python
+```
+
+Build Python 2 and 3 from source with custom prefix and global packages:
+```
+---
+
+- hosts: all
+  become: true
+  vars:
+    python_build_from_source: true
+    python_configure_prefix: /opt/local
+    python_global_packages:
+      - ansible==2.0.1.0
+      - uwsgi
+  roles:
+    - { role: python, python_version: 2.7.7 }
+    - { role: python, python_version: 3.4.4 }
+```

defaults/main.yml

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+---
+
+# Package defaults
+python_apt_key_url: ''
+python_apt_repo: ''
+python_global_packages: []
+python_package_name: python
+
+# Build defaults
+python_build_from_source: false
+python_configure_prefix: '/usr/local'
+python_version: ''
+
+# Internals
+python_major_version: "{{python_version[0]}}"
+python_path: "{{python_configure_prefix}}/bin/python{{python_major_version}}"
+python_pip_path: "/usr/local/bin/pip{{python_major_version}}"
+python_tar_dir: "Python-{{python_version}}"
+python_tar_url: "https://www.python.org/ftp/python/{{python_version}}/{{python_tar_dir}}.tgz"
+python_dependencies:
+  - build-essential
+  - libbz2-dev
+  - libdb-dev
+  - libgdbm-dev
+  - liblzma-dev
+  - libncurses-dev
+  - libreadline-dev
+  - libsqlite3-dev
+  - libssl-dev
+  - python-dev
+  - tk-dev
+  - zlib1g-dev

meta/main.yml

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+---
+dependencies: []
+
+galaxy_info:
+  author: Colin Hoglund
+  description: Python Ansible role that supports package installs as well as building from source.
+  license: "license (BSD, MIT)"
+  min_ansible_version: 1.9
+  platforms:
+  - name: Debian
+    versions:
+    - all
+  - name: Ubuntu
+    versions:
+    - all
+  categories:
+    - development

tasks/build_source.yml

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+---
+
+- name: Install dependencies
+  apt: name="{{item}}" state=latest update_cache=yes cache_valid_time=86400
+  with_items: "{{python_dependencies}}"
+
+- name: Download python tarball
+  get_url: url="{{python_tar_url}}" dest=/tmp/
+
+- name: Unpack python tarball
+  unarchive: src="/tmp/{{python_tar_dir}}.tgz" dest=/tmp/ copy=no
+
+- name: Ensure python prefix directory exists
+  file: path="{{python_configure_prefix}}" state=directory
+
+- name: Build python
+  shell: "./configure --prefix={{python_configure_prefix}}; make; make install"
+  args:
+    chdir: "/tmp/{{python_tar_dir}}"

tasks/install_package.yml

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+---
+
+- name: Add apt key
+  apt_key: url={{python_apt_key_url}}
+  when: python_apt_repo != ''
+
+- name: Setup apt repository
+  apt_repository: repo="{{python_apt_repo}}"
+  when: python_apt_repo != ''
+
+- name: Install package
+  apt: name={{python_package_name}} update_cache=yes cache_valid_time=86400
+
+- name: Get python version
+  shell: "apt-cache show {{python_package_name}} | grep 'Version:' | awk '{print $2}'"
+  register: python_version_output
+
+- name: Set python_major_version
+  set_fact:
+    python_major_version: "{{python_version_output.stdout_lines[0][0]}}"
+
+- name: Get python location
+  command: "which python{{python_major_version}}"
+  register: python_location_output
+
+- name: Set python_path
+  set_fact:
+    python_path: "{{python_location_output.stdout_lines[0]}}"

tasks/install_pip.yml

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+---
+
+- name: Download get-pip.py
+  get_url: url=https://bootstrap.pypa.io/get-pip.py dest=/tmp/
+
+- name: Install pip
+  command: "{{python_path}} /tmp/get-pip.py"

tasks/main.yml

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+---
+
+# Install package
+- include: install_package.yml
+  when: not python_build_from_source
+
+# Build from source
+- name: Check if python is already installed
+  stat: path="{{python_path}}"
+  when: python_build_from_source
+  register: python_installed
+
+- include: build_source.yml
+  when: python_build_from_source and python_installed.stat.exists == false
+
+# Install/upgrade pip
+- name: Check if pip is already installed
+  stat: path="{{python_pip_path}}"
+  register: pip_installed
+
+- name: Install pip
+  include: install_pip.yml
+  when: pip_installed.stat.exists == false
+
+- name: Upgrade pip
+  pip: name=pip state=latest executable="{{python_pip_path}}"
+
+# Install packages
+- name: Install/upgrade virtualenv
+  pip: name=virtualenv state=latest executable="{{python_pip_path}}"
+  when: python_major_version == '2'
+
+- name: Install global packages
+  pip: name="{{item}}" state=present executable="{{python_pip_path}}"
+  with_items: "{{python_global_packages}}"