The internal GCP library was originally placed into `internal/upload`
directory, since its purpose was mainly to upload and import built
images to GCP.
Functionality for other cloud-provider-specific libraries is broader,
however scattered around the `internal/` directory based on purpose (e.g. in
`internal/boot` and `internal/upload`). Since all parts of provider-specific
library usually share some common pieces (e.g. authentication), it makes
sense to consolidate them into a single package (e.g. in
`internal/cloud/<provider>`).
Create `internal/cloud` directory, where all cloud-provider-specific
internal libraries should be consolidated. Start with GCP.
Signed-off-by: Tomas Hozza <thozza@redhat.com>
Originally, the internal GCP library in `internal/upload/gcp` was
logging various information and errors. Refactor the code to move all
logging to callers of the library. As a result, some methods now return
additional information to preserve the same amount of information being
logged for GCP.
Refactor methods to have only single purpose and not do any extra work,
such as storage cleanup. Methods which create new resources now don't do
any cleanup at all. The caller is responsible to check for any errors
and perform any cleanup necessary. Necessary methods to perform cleanup
are provided.
Modify worker's job implementation and GCP CLI tool to explicitly do all
necessary cleanup, including in case of errors.
Signed-off-by: Tomas Hozza <thozza@redhat.com>
Add new internal upload target for Google Cloud Platform and
osbuild-upload-gcp CLI tool which uses the API.
Supported features are:
- Authenticate with GCP using explicitly provided JSON credentials
file or let the authentication be handled automatically by the
Google cloud client library. The later is useful e.g. when the worker
is running in GCP VM instance, which has associated permissions with
it.
- Upload an existing image file into existing Storage bucket.
- Verify MD5 checksum of the uploaded image file against the local
file's checksum.
- Import the uploaded image file into Compute Node as an Image.
- Delete the uploaded image file after a successful image import.
- Delete all cache files from storage created as part of the image
import build job.
- Share the imported image with a list of specified accounts.
GCP-specific image type is not yet added, since GCP supports importing
VMDK and VHD images, which the osbuild-composer already supports.
Update go.mod, vendor/ content and SPEC file with new dependencies.
Signed-off-by: Tomas Hozza <thozza@redhat.com>
