neon-phal-plugin-core-updater 0.0.1a3

Core Module Update Interface

Core Updater Plugin

Exposes a messagebus API to check for and initiate core module updates. Update checks use GitHub releases or PyPI indices, depending on plugin configuration. The update command is configurable and is started in a new session. Note that the calling module might be killed during updates and in many cases, systemD will kill the update process if the parent service stops.

Configuration

The update command, core package, and update references are all configurable. For version checks, a valid Python Package must be installed and versions must either be published to PyPI or tagged as GitHub releases.

PHAL:
  admin:
    neon-phal-plugin-core-updater:
      enabled: True
      core_module: neon_core
      github_ref: NeonGeckoCom/NeonCore
      update_command: systemctl start update_service

Messagebus API

Messagebus events are handled to check for updates and to update to a newer version.

Check for updates

emitting:

msg_type: neon.core_updater.check_update
data: 
  include_prerelease: True

will generate the response:

msg_type: neon.core_updater.check_update.response
data:
  new_version: <latest version including pre-releases/alphas>
  installed_version: <current installed version>
  github_ref: <plugin configured GH ref>
  pypi_ref: <plugin configured PyPI ref>

If include_prereleases is not present in the request, the installed version is used to determine if pre-releases should be included.

Note that only one of github_ref or pypi_ref should be configured. If both are configured, PyPI checks take priority.

Start Updates

emitting:

msg_type: neon.core_updater.start_update
data:
  version: <new_version>

will start the configured update command in a shell with version passed as the first and only argument. If version is omitted, the configured update command will be called with no commands.