bundlewrap/bundles/telegraf/items.py

telegraf_config = {
    'agent': {
        'collection_jitter': '5s',
        'debug': False,
        'flush_buffer_when_full': True,
        'flush_interval': '10s',
        'flush_jitter': '5s',
        'hostname': node.name,
        'interval': '60s',
        'metric_buffer_limit': 1_000_000,
        'quiet': False,
        'round_interval': False,
    },
    'inputs': {
        'cpu': [{
            'percpu': False,
            'totalcpu': True,
            'fielddrop': [
                'time_*',
            ],
        }],
        'disk': [{
            'ignore_fs': [
                'aufs',
                'devtmpfs',
                'nsfs',
                'tmpfs',
            ],
        }],
        'diskio': [{
            'skip_serial_number': True,
        }],
        'kernel': [{}],
        'mem': [{}],
        'net': [{
            'interfaces': [
                'en*',
                'eth*',
                'wg*',
                'wlp*',
            ],
        }],
        'nstat': [{}],
        'processes': [{}],
        'system': [{}],
        **node.metadata.get('telegraf/input_plugins/builtin', {}),
    },
    'outputs': {
        'influxdb_v2': [{
            'urls': [node.metadata['telegraf']['influxdb_url']],
            'token': node.metadata['telegraf']['influxdb_token'],
            'organization': node.metadata['telegraf']['influxdb_org'],
            'bucket': node.metadata['telegraf']['influxdb_bucket'],
        }],
    },
}

# Bundlewrap can't merge lists. To work around this, telegraf/input_plugins/exec(d)
# is a dict, of which we only use the value of it. This also allows us
# to overwrite values set by metadata defaults/reactors in node and group
# metadata, if needed.
for config in node.metadata.get('telegraf/input_plugins/exec', {}).values():
    if 'exec' not in telegraf_config['inputs']:
        telegraf_config['inputs']['exec'] = []

    telegraf_config['inputs']['exec'].append(config)

for config in node.metadata.get('telegraf/input_plugins/execd', {}).values():
    if 'execd' not in telegraf_config['inputs']:
        telegraf_config['inputs']['execd'] = []

    telegraf_config['inputs']['execd'].append(config)

files = {
    '/etc/telegraf/telegraf.conf': {
        'content_type': 'mako',
        'context': {
            'config': telegraf_config,
        },
        'triggers': {
            'svc_systemd:telegraf:restart',
        },
    },
    '/etc/sudoers.d/telegraf': {
        'source': 'sudoers',
        'content_type': 'mako',
    },
}

if node.metadata.get('telegraf/additional_capabilities', set()):
    files['/etc/systemd/system/telegraf.service.d/bundlewrap.conf'] = {
        'source': 'override.conf',
        'content_type': 'mako',
        'context': {
            'capabilities': node.metadata['telegraf']['additional_capabilities'],
        },
        'triggers': {
            'action:systemd-reload',
            'svc_systemd:telegraf:restart',
        },
    }
else:
    files['/etc/systemd/system/telegraf.service.d/bundlewrap.conf'] = {
        'delete': True,
        'triggers': {
            'action:systemd-reload',
            'svc_systemd:telegraf:restart',
        },
    }

users = {
    'telegraf': {
        'groups': node.metadata.get('telegraf/additional_groups', set()),
        'triggers': {
            'svc_systemd:telegraf:restart',
        },
    },
}

svc_systemd = {
    'telegraf': {
        'needs': {
            'file:/etc/telegraf/telegraf.conf',
            'file:/etc/systemd/system/telegraf.service.d/bundlewrap.conf',
            'user:telegraf',
        },
    },
}

if node.has_bundle('apt'):
    svc_systemd['telegraf']['needs'].add('pkg_apt:telegraf')

    users['telegraf']['needs'] = {
        'pkg_apt:telegraf',
    }

# Arch users: install telegraf or telegraf-bin from AUR