puppet-module-nhc

####Table of Contents

1. Overview
2. Usage - Configuration options
3. Reference - Parameter and detailed reference to all options
4. Limitations - OS compatibility, etc.
5. Development - Guide for contributing to the module
6. TODO
7. Additional Information

Overview

This module manages the installation and configuration of LBNL Node Health CHeck (NHC).

Usage

Class: nhc

Configure a host with NHC.

class { 'nhc': }

Note: The nhc_checks Hiera key can be used and is collected using the hiera_array lookup function. If nhc_checks in present in Hiera, it is used as the default value for checks.

This is an example of using Hiera to define the default checks installed with NHC.

nhc::checks:
  - 'check_fs_mount_rw /tmp'
  - 'check_fs_mount_rw /'
  - 'check_fs_mount_rw /dev/pts '/(none|devpts)/' devpts'
  - 'check_ps_daemon sshd root'
  - 'check_ps_daemon provisiond root'
  - 'check_ps_daemon wulfd root'
  - 'check_ps_unauth_users log syslog'
  - 'check_ps_userproc_lineage log syslog'
  - 'check_ps_kswapd 1800000 100 log syslog'
  - 'check_hw_cpuinfo 2 8 8'
  - 'check_hw_physmem 1024 1073741824'
  - 'check_hw_swap 1 1073741824'
  - 'check_hw_mem 1024 1073741824'
  - 'check_hw_physmem_free 1'
  - 'check_hw_swap_free 1'
  - 'check_hw_mem_free 1'
  - 'check_hw_ib 40'
  - 'check_hw_gm myri0'
  - 'check_hw_eth eth1'

A Hash can also be used to define checks

nhc::checks:
  '*':
    - 'check_fs_mount_rw /tmp'
    - 'check_fs_mount_rw /'
    - 'check_fs_mount_rw /dev/pts '/(none|devpts)/' devpts'
  'foo.baz':
    - 'check_ps_daemon sshd root'
    - 'check_ps_daemon provisiond root'
    - 'check_ps_daemon wulfd root'
    - 'check_ps_unauth_users log syslog'
    - 'check_ps_userproc_lineage log syslog'
    - 'check_ps_kswapd 1800000 100 log syslog'
  'foo.bar':
    - 'check_hw_cpuinfo 2 8 8'
    - 'check_hw_physmem 1024 1073741824'
    - 'check_hw_swap 1 1073741824'
    - 'check_hw_mem 1024 1073741824'
    - 'check_hw_physmem_free 1'
    - 'check_hw_swap_free 1'
    - 'check_hw_mem_free 1'
    - 'check_hw_ib 40'
    - 'check_hw_gm myri0'
    - 'check_hw_eth eth1'

This is an example of using a local yum repository to install NHC.

nhc::install_from_repo: 'foo-repo'

Reference

Public Classes

Class: nhc:

Installs and configures NHC. Default values in Hiera format are below.

$::osfamily == 'RedHat'

nhc::ensure: 'present'
nhc::package_ensure: undef
nhc::package_version: '1.4.2'
nhc::package_release: '1'
nhc::package_url: "https://github.com/mej/nhc/releases/download/%VERSION%/lbnl-nhc-%VERSION%-%RELEASE%.el%{::operatingsystemmajrelease}.noarch.rpm"
nhc::install_from_repo: undef
nhc::checks: []
nhc::settings: {}
nhc::config_overrides: {}
nhc::detached_mode: false
nhc::detached_mode_fail_nodata: false
nhc::program_name: 'nhc'
nhc::conf_dir: '/etc/nhc'
nhc::conf_file: '/etc/nhc/nhc.conf'
nhc::include_dir: '/etc/nhc/scripts'
nhc::log_file: '/var/log/nhc.log'
nhc::sysconfig_path: '/etc/sysconfig/nhc'
nhc::manage_logrotate: true
nhc::log_rotate_every: 'weekly'

Limitations

This module has been tested on:

• CentOS 6 x86_64

Development

Testing

Testing requires the following dependencies:

• rake
• bundler

Install gem dependencies

bundle install

Run unit tests

bundle exec rake test

If you have Vagrant >= 1.2.0 installed you can run system tests

bundle exec rake beaker

TODO

Further Information