This commit adds a pkg/services/screenshot package for taking and uploading screenshots of Grafana dashboards. It supports taking screenshots of both dashboards and individual panels within a dashboard, using the rendering service.
The screenshot package has the following services, most of which can be composed:
BrowserScreenshotService (Takes screenshots with headless Chrome)
CachableScreenshotService (Caches screenshots taken with another service such as BrowserScreenshotService)
NoopScreenshotService (A no-op screenshot service for tests)
SingleFlightScreenshotService (Prevents duplicate screenshots when taking screenshots of the same dashboard or panel in parallel)
ScreenshotUnavailableService (A screenshot service that returns ErrScreenshotsUnavailable)
UploadingScreenshotService (A screenshot service that uploads taken screenshots)
The screenshot package does not support wire dependency injection yet. ngalert constructs its own version of the service. See https://github.com/grafana/grafana/issues/49296
This PR also adds an ImageScreenshotService to ngAlert. This is used to take screenshots with a screenshotservice and then store their location reference for use by alert instances and notifiers.
Enables creating signed URLs when uploading images to Google Cloud Storage.
By using signed urls, not only is the public URL expiration configurable but the
images in the bucket are not publicly accessible.
Fixes#26773
Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>
* imguploader: add support for non-Amazon S3 endpoints and forcing of path-style S3 addressing
fixes#11240
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
* wip: start on refactoring settings
* settings: progress on settings refactor
* refactor: progress on settings refactoring
* fix: fixed failing test
* settings: moved smtp settings from global to instance
