select/limit output? #106
Description
I'm using nagios-http-json to monitor netdata. My problem is that I didn't find an elegant way to limit or select the output returned by check_http_json.py:
root@packetfence3:~# /usr/local/lib/nagios-http-json/check_http_json.py -H 127.0.0.1 -P 19999 -p 'api/v1/alarms' -Q 'alarms','{}'
CRITICAL: Status CRITICAL. Key alarms mismatch. {} != {'haproxy_haproxy-portal.health_sdown.haproxy_backend_server_status': {'id': 1741607668, 'config_hash_id': '3a7975f3-dfd3-4e71-b54d-e3342ab7c808', 'name': 'haproxy_backend_server_status', 'chart': 'haproxy_haproxy-portal.health_sdown', 'class': 'Errors', 'component': 'HAProxy', 'type': 'Web Proxy', 'active': True, 'disabled': False, 'silenced': False, 'exec': '/usr/libexec/netdata/plugins.d/alarm-notify.sh', 'recipient': 'sysadmin', 'source': 'line=4,file=/etc/netdata/health.d/haproxy.conf', 'units': 'failed servers', 'summary': 'HAProxy server status', 'info': 'Average number of failed haproxy backend servers over the last 10 seconds', 'status': 'CRITICAL', 'last_status_change': 1764155510, 'last_updated': 1764229321, 'next_update': 1764229331, 'update_every': 10, 'delay_up_duration': 0, 'delay_down_duration': 0, 'delay_max_duration': 0, 'delay_multiplier': 1.0, 'delay': 0, 'delay_up_to_timestamp': 1764155510, 'warn_repeat_every': '0', 'crit_repeat_every': '0', 'value_string': '2 failed servers', 'last_repeat': '0', 'times_repeat': 0, 'db_after': 1764229311, 'db_before': 1764229320, 'lookup_method': 'average', 'lookup_after': -10, 'lookup_before': 0, 'lookup_options': '', 'crit': '$this > 0', 'crit_parsed': '(${this} > 0)', 'green': None, 'red': None, 'value': 2}}
This is very hard to read. I tried to find a way to to get something like this…
"haproxy_backend_server_status"
"haproxy_haproxy-portal.health_sdown"
"2 failed servers"
…which contains the important information only and leaves out all the technical netdata information.
I ended up with this command:
/usr/local/lib/nagios-http-json/check_http_json.py -H 127.0.0.1 -P 19999 -p 'api/v1/alarms' -Q 'alarms','{}' \
| cut -d'=' -f2- \
| perl -pe"s/'/\"/g; s/True/true/g; s/False/false/g; s/None/\"None\"/g" \
| jq '.[].name,.[].chart,.[].value_string,.[].value'
I have two question:
- Did I overlook some option that could filter out the returned json attributes?
- Why is the returned json not valid for
jq? Did I miss some option tojq?