Supervisord

Supervisor daemon is a client/server system that allows its users to monitor and control a number of processes on UNIX-like operating systems. The Supervisor check monitors the uptime, status, and number of processes running under Supervisord.

No default configuration is provided for the Supervisor check; you must provide the configuration in the dragent.yaml file for the Sysdig agent to collect the data provided by Supervisor.

This page describes the setup steps required on Supervisor, how to edit the Sysdig agent configuration to collect additional information, the metrics available for integration, and a sample result in the Sysdig Monitor UI.

Supervisor Setup

Configuration

The Sysdig agent can collect data from Supervisor via HTTP server or UNIX socket. The agent collects the same data regardless of the configured collection method.

Un-comment the following or add them if they are not present in /etc/supervisor/supervisord.conf

[inet_http_server]
port=localhost:9001
username=user  # optional
password=pass  # optional
...


[supervisorctl]
serverurl=unix:///tmp/supervisor.sock
...

[unix_http_server]
file=/tmp/supervisor.sock
chmod=777 # make sure chmod is set so that non-root users can read the socket.
...

[program:foo]
command=/bin/cat

The programs controlled by Supervisor are given by different [program] sections in the configuration. Each program you want to manage by Supervisor must be specified in the Supervisor configuration file, with its supported options in the [program] section. See Supervisor’s sample.conf file for details.

Sysdig Agent Configuration

Review how to Edit dragent.yaml to Integrate or Modify Application Checks.

Default Configuration

By default, Sysdig’s dragent.default.yaml does not have any configuration to connect the agent with Supervisor. Edit dragent.yaml following the Examples given to connect with Supervisor and collect supervisor.* metrics.

Example 1: Connect by UNIX Socket

  - name: supervisord
    pattern:
      comm: supervisord
    conf:
      socket: "unix:///tmp/supervisor.sock"

Example 2: Connect by Host Name and Port, Optional Authentication

- name: supervisord
  pattern:
    comm: supervisord
  conf:
    host: localhost
    port: 9001
# user: user # Optional. Required only if a username is configured.
# pass: pass # Optional. Required only if a password is configured.

Metrics Available

See also Supervisord Metrics.

Service Check

supervisored.can.connect:

Returns CRITICAL if the Sysdig agent cannot connect to the HTTP server or UNIX socket configured, otherwise OK.

supervisord.process.status:

Result in the Monitor UI