httpcheck

HTTP endpoint monitoring with Netdata

Monitors remote http server for availability and response time.

Following charts are drawn per job:

1. Response time ms

   • Time in 0.1 ms resolution in which the server responds. If the connection failed, the value is missing.

2. Status boolean

   • Connection successful
   • Unexpected content: No Regex match found in the response
   • Unexpected status code: Do we get 500 errors?
   • Connection failed: port not listening or blocked
   • Connection timed out: host or port unreachable

Configuration

Edit the python.d/httpcheck.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata   # Replace this path with your Netdata config directory, if different
sudo ./edit-config python.d/httpcheck.conf

Sample configuration and their default values.

server:
  url: 'http://host:port/path'  # required
  status_accepted:              # optional
    - 200
  timeout: 1                    # optional, supports decimals (e.g. 0.2)
  update_every: 3               # optional
  regex: 'REGULAR_EXPRESSION'   # optional, see https://docs.python.org/3/howto/regex.html
  redirect: yes                 # optional

Notes

• The status chart is primarily intended for alarms, badges or for access via API.
• A system/service/firewall might block Netdata's access if a portscan or similar is detected.
• This plugin is meant for simple use cases. Currently, the accuracy of the response time is low and should be used as reference only.

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