Edge App Deployment Service – Basics¶
The Edge App Deployment Service uses the Deployment Workflow Service to instantiate the software installation workflow. This sets up a state machine to track the deployment progress and requires the device to send status messages while executing the deployment job. The history of the job status is recorded by the Edge App Deployment Service.
Required Device Messages¶
For proper progress tracking, it is necessary, that the device sends status messages to the backend. It should send messages in the following cases:
- It has started a job. This triggers the state machine to transition to
REMOVING. It may send status updates about the progress of the specific job.
- It has finished a job. This triggers the state machine to transition to
- A job has failed. This triggers the state machine to transition to
- A job has been canceled, e.g. due to a timeout. This triggers the state machine to transition to
CANCELED. Do not trigger this transition, if an error occurred, as the backend might unnecessarily retry the operation in this case.
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