---

- name: Include OS vars
  include_vars: "{{ ansible_os_family | lower }}.yml"

- name: Create slurm group
  group:
    name: "{{ slurm_user.name | default('slurm') }}"
    gid: "{{ slurm_user.gid | default(omit) }}"
    system: "{{ slurm_user.system | default('yes') }}"
  when: slurm_user is defined

- name: Create slurm user
  user:
    name: "{{ slurm_user.name | default('slurm') }}"
    comment: "{{ slurm_user.comment | default(omit) }}"
    uid: "{{ slurm_user.uid | default(omit) }}"
    group: "{{ slurm_user.group | default(slurm_user.name | default('slurm')) }}"
    groups: "{{ slurm_user.groups | default(omit) }}"
    home: "{{ slurm_user.home | default(omit) }}"
    shell: "{{ slurm_user.shell | default(omit) }}"
    system: "{{ slurm_user.system | default('yes') }}"
  when: slurm_user is defined

- name: Install Slurm (apt)
  apt:
    pkg: slurm-llnl
  when: ansible_os_family == "Debian"

- name: Install Slurm (yum)
  yum:
    name: "{{ item }}"
  with_items:
    - munge
    - munge-libs
    - slurm-plugins
    - slurm
    - slurm-devel
    - slurm-munge
    - slurm-pam_slurm
    #- slurm-perlapi
    - slurm-sjobexit
    - slurm-sjstat
    - slurm-slurmdb-direct
    - slurm-slurmdbd
    #- slurm-sql
    #- slurm-torque
  when: ansible_os_family == "RedHat"

# FIXME: this task will fail if slurmservers[0] has not already completed the slurm.conf task that follows it
- name: Acquire hostlist
  command: scontrol show hostlist {{ groups[item.inventory_group] | join(",") }}
  with_items: "{{ slurm_nodes | default([]) }}"
  delegate_to: "{{ groups['slurmservers'][0] }}"
  run_once: true
  register: slurm_hostlists

- name: Install slurm.conf
  template:
    src: "{{ slurm_conf_src | default( 'templates/slurm/slurm.conf.j2' ) }}"
    dest: "{{ slurm_conf_dir }}/slurm.conf"
    owner: root
    group: root
    mode: 0444
  notify:
    - restart slurmd
    - restart slurmctld

- name: Install slurmdbd.conf
  template:
    src: slurmdbd.conf.j2
    dest: "{{ slurm_conf_dir }}/slurmdbd.conf"
    owner: slurm
    group: root
    mode: 0400
  notify:
    - reload slurmdbd
  when: "'slurmdbdservers' in group_names"

- name: Create slurm spool directory
  file:
    path: "{{ slurmd_spool_dir }}"
    owner: root
    group: root
    mode: 0755
    state: directory
  notify:
    - reload slurmd

- name: Create slurm state directory
  file:
    path: "{{ slurmctld_state_dir }}"
    owner: slurm
    group: slurm
    mode: 0700
    state: directory
  when: "'slurmservers' in group_names"
  notify:
    - reload slurmctld

- name: Create slurm log directory
  file:
    path: "/var/log/{{ slurm_log_dir_name }}"
    owner: slurm
    group: slurm
    mode: 0755
    state: directory
  when: "'slurmservers' in group_names"

- name: Check munge dir
  file:
    path: /etc/munge
    owner: munge
    group: munge
    mode: 0700
    state: directory

- name: Install munge key
  action:
    module: decode
  args:
    content: "{{ munge_key }}"
    dest: /etc/munge/munge.key
    filter: base64
    owner: munge
    group: munge
    mode: 0400

# /var/log on Ubuntu 14.04+ is group writable, which causes munge to refuse to start
# NOTE: This is fixed in munge 0.5.12
- name: Check /var/log permissions
  stat:
    path: /var/log
  register: stat_var_log

- name: Force munge to start with "insecure" /var/log permissions
  lineinfile:
    dest: /etc/default/munge
    line: 'OPTIONS="--force"'
    regexp: ^OPTIONS=
  when: stat_var_log.stat.wgrp

- name: Ensure Munge is running
  service:
    name: munge
    enabled: yes
    state: started

- name: Ensure slurmd is running
  service:
    name: "{{ slurmd_service_name }}"
    enabled: yes
    state: started
  when: "'slurmexechosts' in group_names"

- name: Ensure slurmctld is running
  service:
    name: "{{ slurmctld_service_name }}"
    enabled: yes
    state: started
  when: "'slurmservers' in group_names"

- name: Ensure slurmdbd is running
  service:
    name: "{{ slurmdbd_service_name }}"
    enabled: yes
    state: started
  when: "'slurmdbdservers' in group_names"

- include: elastic.yml
  when: "'slurmelasticservers' in group_names"