- hosts: all
  vars_files:
  - shared_vars.yml
  strategy: linear
  gather_facts: false
  tasks:
    - raw: >
        if ! python -c ''; then
          if type -p yum; then
            yum -y install python;
          else
            apt-get -y update && apt-get -y install python;
          fi;
        fi

- hosts: all
  vars_files:
  - shared_vars.yml
  strategy: mitogen_free
  # Can't gather facts before here.
  gather_facts: true
  vars:
    distro: "{{ansible_distribution}}"
    ver: "{{ansible_distribution_major_version}}"

    packages:
      common:
        - openssh-server
        - rsync
        - strace
        - sudo
      Debian:
        "9":
          - libjson-perl
          - python-virtualenv
          - locales
      CentOS:
        "5":
        - perl
        - sudo
          #- perl-JSON  -- skipped on CentOS 5, packages are a pain.
        "6":
          - perl-JSON
        "7":
          - perl-JSON
          - python-virtualenv

  tasks:
    - when: ansible_virtualization_type != "docker"
      meta: end_play

    - name: Ensure requisite Debian packages are installed
      apt:
        name: "{{packages.common + packages[distro][ver]}}"
        state: installed
        update_cache: true
      when: distro == "Debian"

    - name: Ensure requisite Red Hat packaed are installed
      yum:
        name: "{{packages.common + packages[distro][ver]}}"
        state: installed
        update_cache: true
      when: distro == "CentOS"

    - name: Clean up apt cache
      command: apt-get clean
      when: distro == "Debian"

    - name: Clean up apt package lists
      shell: rm -rf {{item}}/*
      with_items:
      - /var/cache/apt
      - /var/lib/apt/lists
      when: distro == "Debian"

    - name: Clean up yum cache
      command: yum clean all
      when: distro == "CentOS"

    - name: Enable UTF-8 locale on Debian
      copy:
        dest: /etc/locale.gen
        content: |
          en_US.UTF-8 UTF-8
          fr_FR.UTF-8 UTF-8
      when: distro == "Debian"

    - name: Generate UTF-8 locale on Debian
      shell: locale-gen
      when: distro == "Debian"

    - name: Write Unicode into /etc/environment
      copy:
        dest: /etc/environment
        content: "UNICODE_SNOWMAN=\u2603\n"

    - name: Install prebuilt 'doas' binary
      unarchive:
        dest: /
        src: ../data/docker/doas-debian.tar.gz

    - name: Make prebuilt 'doas' binary executable
      file:
        path: /usr/local/bin/doas
        mode: 'u=rwxs,go=rx'
        owner: root
        group: root

    - name: Install doas.conf
      copy:
        dest: /etc/doas.conf
        content: |
          permit :mitogen__group
          permit :root

    - name: Vanilla Ansible needs simplejson on CentOS 5.
      shell: mkdir -p /usr/lib/python2.4/site-packages/simplejson/
      when: distro == "CentOS" and ver == "5"

    - name: Vanilla Ansible needs simplejson on CentOS 5.
      synchronize:
        dest: /usr/lib/python2.4/site-packages/simplejson/
        src: ../../ansible_mitogen/compat/simplejson/
      when: distro == "CentOS" and ver == "5"

    - name: Set root user password and shell
      user:
        name: root
        password: "{{ 'rootpassword' | password_hash('sha256') }}"
        shell: /bin/bash

    - name: Ensure /var/run/sshd exists
      file:
        path: /var/run/sshd
        state: directory

    - name: Generate SSH host key
      command: ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
      args:
        creates: /etc/ssh/ssh_host_rsa_key

    - name: Ensure correct sudo group exists
      group:
        name: "{{sudo_group[distro]}}"

    - name: Ensure /etc/sentinel exists
      copy:
        dest: /etc/sentinel
        content: |
          i-am-mitogen-test-docker-image

    - copy:
        dest: /etc/ssh/banner.txt
        src: ../data/docker/ssh_login_banner.txt

    - name: Ensure /etc/sudoers.d exists
      file:
        state: directory
        path: /etc/sudoers.d
        mode: 'u=rwx,go='

    - name: Install test-related sudo rules
      blockinfile:
        path: /etc/sudoers
        block: |
          # https://www.toofishes.net/blog/trouble-sudoers-or-last-entry-wins/
          %mitogen__sudo_nopw ALL=(ALL:ALL) NOPASSWD:ALL
          mitogen__has_sudo_nopw ALL = (mitogen__pw_required) ALL
          mitogen__has_sudo_nopw ALL = (mitogen__require_tty_pw_required) ALL

          Defaults>mitogen__pw_required targetpw
          Defaults>mitogen__require_tty requiretty
          Defaults>mitogen__require_tty_pw_required requiretty,targetpw

    - name: Prevent permission denied errors.
      file:
        path: /etc/sudoers.d/README
        state: absent

    - name: Install CentOS wheel sudo rule
      lineinfile:
        path: /etc/sudoers
        line: "%wheel ALL=(ALL) ALL"
      when: distro == "CentOS"

    - name: Enable SSH banner
      lineinfile:
        path: /etc/ssh/sshd_config
        line: Banner /etc/ssh/banner.txt

    - name: Allow remote SSH root login
      lineinfile:
        path: /etc/ssh/sshd_config
        line: PermitRootLogin yes
        regexp: '.*PermitRootLogin.*'

    - name: Allow remote SSH root login
      lineinfile:
        path: /etc/pam.d/sshd
        regexp: '.*session.*required.*pam_loginuid.so'
        line: session optional pam_loginuid.so

    - name: Install convenience script for running an straced Python
      copy:
        mode: 'u+rwx,go=rx'
        dest: /usr/local/bin/pywrap
        content: |
         #!/bin/bash
         exec strace -ff -o /tmp/pywrap$$.trace python2.7 "$@"'