nhc.md

NHC

Source: nhc.cf

The service file installs nhc software on a node and generates the following files:

• /etc/nhc/nhc.conf
• /etc/default/nhc (Debian)
• /etc/sysconfig/nhc (centos/redhat)

If one of the files is changed then the following ''class'' will be set:

• scl_etc_nhc_conf
• scl_etc_default_nhc_conf or scl_etc_sysconfig_nhc

These files will be generated with the aid of mustache templates with json data. the templates are located in:

• templates/nhc/
• templates/nhc/json

The following json variables can be set in def.cf/json to invoke files bundles:

• copy_files: See files.cf
• copy_dirs: See files.cf

USAGE

The bundle can be run via:

• def.scl_services_enabled

"vars": {
    "scl_services_enabled": [
            "...",
            "nhc",
            "..."
    ]
}

The bundle will aways read the default.json file and extra json file(s) can be specified via:

• def.cf

vars:
    any::
        "nhc_json_files" slist => { "lisa.json" };

The variable must be lisa_json_files and with this setup 1 extra json file will be merged.

DEBUG

if you want to debug this bundle set the DEBUG_nhc class, eg:

• -DDEBUG_nhc

def.cf/json

See default.json what the default values are and which variables can be overriden.

Here are some examples how to use it:

• specify nhc configuration in def.cf:

vars:
    "nhc_json_files" slist => { "lisa.json" };

• Copy extra files and override debug:

    "nhc" : {
        "copy_files": {
            "dest": "$(nhc.scripts_dir)/sara_health_checks.nhc",
            "src": "data/nhc/scripts/sara_health_checks.nhc",
            "mode": "0644", "owner": "root", "group": "root"
        },
        "debug": "1",
    },

• override server setting in def.json

"vars": {
    "nhc": {
         "debug":  "1"
   }
}