Execute after completion

Sometimes you want to execute another command after the main command executes, this is often the case when you want to check the status of the main command, or if you want to send a notification.

config.yaml

actions:
  - title: Check date and send notification via apprise
    icon: date
    shell: date
    shellAfterCompleted: "apprise -c /config/apprise.yml -t 'Notification: Backup script completed' -b \"$(printf 'Backup completed with exit code %s. Log: %s' {{ exitCode }} {{ output }})\""

When running shellAfterCompleted, you cannot use argument values - they are not passed to the command. However the following special arguments are defined;

{{ exitCode }} - The exit code of the previous shell command. OliveTin substitutes this with the EXITCODE environment variable when running shellAfterCompleted, so shell metacharacters in the value cannot break quoting.
{{ output }} - The standard output of the previous shell command. OliveTin substitutes this with the OUTPUT environment variable when running shellAfterCompleted, so shell metacharacters in command output cannot be executed. You can also reference $OUTPUT directly in your shellAfterCompleted command. Do not place these placeholders inside single-quoted shell arguments; single quotes prevent $OUTPUT and $EXITCODE from expanding after substitution.
{{ .Arguments.ot_executionTrackingId }} - The unique execution tracking id for this execution (version 3k; in 2k use {{ ot_executionTrackingId }})
{{ .Arguments.ot_username }} - The username of the user who started the execution (version 3k; in 2k use {{ ot_username }}). May be guest or cron for unauthenticated or automated runs.

You can only use a single shellAfterCompleted, so use it for notifications, or similar. It would be an antipattern to use this do run 2 commands making up a mini script.

The official OliveTin container images from version 2024.03.24 onwards include the fantastic apprise tool, which makes chat notifications on many protocols very easy.

/config/apprise.yaml

urls:
  - tgram://bottoken/ChatID

Execute after completion

See Also