How to monitor Symfony jobs

A Symfony command can fail because production environment variables differ from the interactive shell.

Report success and failure

Create a check and set PING_URL to its private URL. Replace the example command with your actual task. These examples preserve command failure and do not let a failed reporting request turn a successful job into a failure.

#!/bin/sh
# PING_URL is the private URL copied from your check.
: "${PING_URL:?Set PING_URL first}"
rid="$(date +%s)-$$"
report() { curl -fsS -m 10 --retry 3 "$PING_URL/$1?rid=$rid" >/dev/null 2>&1 || :; }
trap 'code=$?; report "$code"; exit "$code"' EXIT
report start
sleep 1
php /app/bin/console app:reports

Connect it to Symfony

Wrap the console command and schedule the wrapper with cron or a systemd timer.

*/5 * * * * /bin/sh /opt/monitored-job.sh

These are integration fragments for an existing project, not a full application. Set the URL in the job’s environment, keep credentials private and ensure the runtime has the dependencies shown.

Things to watch

Set APP_ENV=prod in the scheduler environment and keep secrets out of captured output.

The shell examples wait one second between start and work to respect the per-check rate guard. For very short tasks, completion-only pings avoid that delay. A killed process may never send a failure ping; the completion deadline catches the missing run instead.

Test the setup

  1. Run a successful task and confirm the check turns up.
  2. Force a nonzero exit or exception and verify the check turns down.
  3. Stop the scheduler after one success and wait for the expected run plus grace.

Set the schedule to your task’s completion cadence, allowing for runtime and queue delay. Use the cron helper to review your calendar schedule.

Questions about Symfony

Where should the heartbeat run?
Inside the completed task, after the important work. A Symfony command can fail because production environment variables differ from the interactive shell.
Which grace period should I use?
Allow for job runtime and scheduler startup delay. CronPulse evaluates deadlines once a minute, so alerts generally follow within about 1–2 minutes after grace ends.
Does this test the result of my work?
No. A success ping proves your command reached the reporting step. Validate output and, for backups, test restoration. Missing completion pings catch stopped or killed jobs.

Platform reference: official Symfony documentation. Adapt fragments to your installed version.

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