117 lines
4.3 KiB
Python
117 lines
4.3 KiB
Python
from bundlewrap.utils import Fault
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from os.path import join
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from re import sub
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with open(join(repo.path, 'data', 'sshmon', 'sshmon.pub'), 'r') as fp:
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pubkey = fp.read().strip()
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defaults = {
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'apt': {
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'packages': {
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'python3-requests': {},
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},
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},
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'icinga2_api': {
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'basic': {
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'services': {
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'CPU': {
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'command_on_monitored_host': '/usr/local/share/icinga/plugins/check_cpu_stats',
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},
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'LOAD': {
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'command_on_monitored_host': '/usr/lib/nagios/plugins/check_load -r -w 4,2,1 -c 8,4,2',
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}
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},
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},
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},
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'users': {
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'sshmon': {
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'password_hash': 'x',
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'ssh_pubkey': {
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'command="/usr/local/sbin/sshmon" {}'.format(pubkey),
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},
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'sudo_commands': [],
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},
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},
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}
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@metadata_reactor
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def autogenerate_sshmon_command(metadata):
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result = {
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'icinga2_api': {},
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}
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for bundle, bundle_config in metadata.get('icinga2_api', {}).items():
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for service, service_config in bundle_config.get('services', {}).items():
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# The default for check_command is also set in items.py and
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# in icinga2 bundle
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if (
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service_config.get('check_command', 'sshmon') == 'sshmon' and
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'command_on_monitored_host' in service_config
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):
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service_normalized = sub('[^a-zA-Z0-9]', '_', service)
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result['icinga2_api'].setdefault(bundle, {}).setdefault('services', {}).setdefault(service, {})
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result['icinga2_api'][bundle]['services'][service]['vars.sshmon_command'] = service_normalized
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return result
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@metadata_reactor
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def default_checks(metadata):
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disk_space_warning = metadata.get('sshmon/disk_space/warning', 15)
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disk_space_critical = metadata.get('sshmon/disk_space/critical', 5)
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disk_space_warning_inodes = metadata.get('sshmon/disk_space/warning_inodes', 15)
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disk_space_critical_inodes = metadata.get('sshmon/disk_space/critical_inodes', 5)
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disk_space_ignore_patterns = metadata.get('sshmon/disk_space/ignore_patterns', set())
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ram_warning = metadata.get('sshmon/ram_usage/warning', 9)
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ram_critical = metadata.get('sshmon/ram_usage/critical', 8)
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mounts_options = metadata.get('sshmon/check_mounts_options', '')
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check_internet_http_url = metadata.get('sshmon/check_internet_http_url', 'https://ftp-stud.hs-esslingen.de')
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disk_space_extra_args = set()
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for pattern in disk_space_ignore_patterns:
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disk_space_extra_args.add(f'-I {pattern}')
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for pool in metadata.get('zfs/pools', {}).keys():
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disk_space_extra_args.add(f'--ignore-ereg-partition={pool}')
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disk_space_ignore_patterns_string = ' '.join(sorted(disk_space_extra_args))
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return {
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'icinga2_api': {
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'basic': {
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'services': {
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'DISK SPACE': {
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'command_on_monitored_host': str(
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'/usr/lib/nagios/plugins/check_disk -X nfs -X nfs4 -X squashfs '
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f'-w {disk_space_warning} -c {disk_space_critical} '
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f'-W {disk_space_warning_inodes} -K {disk_space_critical_inodes} '
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'-A -I "^/dev$" -I "^/run" -I "^/sys" -i "/sys/kernel/debug/tracing" '
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f'{disk_space_ignore_patterns_string}',
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),
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'vars.notification.mail': True,
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},
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'MOUNTS': {
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'command_on_monitored_host': f'sudo /usr/local/share/icinga/plugins/check_mounts {mounts_options}',
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},
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'RAM': {
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'command_on_monitored_host': f'/usr/local/share/icinga/plugins/check_ram {ram_warning} {ram_critical}',
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'max_check_attempts': '12',
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'retry_interval': '30m',
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},
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'INTERNET': {
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'command_on_monitored_host': f'/usr/local/share/icinga/plugins/check_http_wget --url {check_internet_http_url}',
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'vars.sshmon_timeout': 30,
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}
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},
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},
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},
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}
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