Only tell them about a Docker app.

Alerts › rules. Kinds sit under the tags. Docker app is one tick. None ticked still means every kind.

A Docker-app rule does not stop the hub from raising a disk or a downtime. It only decides which of those become a message. A container that exited on purpose during a deploy is not this kind.

Tick Docker app

Open Alerts › rules and press + rule. Under kinds, tick Docker app and leave the others clear. That kind is an app that is unhealthy or restarting. None ticked still means every kind. The address is typed and not added yet. Type and tags left empty cover every machine.

New alert rule with the Docker app kind ticked and an email address in the contact field — New rule with Docker app ticked. The address is not a contact yet.

Read the sentence, then add the rule

Press add contact. The grey sentence reads: tell email ops@example.com when a warning or worse (Docker app) opens on 6 machines in Example Co, and again when it resolves. Press add rule when that sentence is the one you want. This shot stops before that. A later edit of the same rule is Change an alert rule.

Rule editor with Docker app ticked, an email contact, and a preview that names Docker app — The sentence names Docker app and ops@example.com. Add rule saves it. Nothing has been saved in this shot.

A rule for every kind is Tell someone when a machine needs attention. Disk only is Only tell them about disk alerts. Downtime only is Only tell them about downtime. A new external IP or a WAN failover is Only tell them when the network path changes. A failing check is Only tell them about a failing check. A reboot is Only tell them about a reboot. A custom metric is Only tell them about a custom metric. The apps on one machine are See Docker apps on a machine. A check that one app is running is Check that a Docker app is running. A script that starts when an app is unhealthy is Run a script only when a Docker app is unhealthy.