Until now, all jobs were put as "osbuild" jobs into the job queue and
the worker API hard-coded sending an osbuild manifest and upload
targets.
Change the API to take a "type" and "args" keys, which are equivalent to
the job-queue's type and args. Workers continue to support only osbuild
jobs, but this makes other jobs possible in the future.
The worker API returns errors of the form:
{ "message": "..." }
Print the message of those errors when receiving an error on the client.
This adds an `Error` type to openapi.yml and marks all routes as
returning it on 4XX and 5XX.
Instead of sending a `token` to workers, send back to URLs:
1. "location": URL at which the job can be inspected (GET) and updated
(PATCH).
2. "artifact_location": URL at which artifacts should be uploaded to.
The actual URLs remain the same, but a client does not need to stitch
them together manually (except appending the artifact's name).
Unfortunately, the client code generated by `deepmap` does not lend
itself to this style of APIs. Use standard http.Client again, which is a
partial revert of 0962fbd30.
Don't give out job ids to workers, but `tokens`, which serve as an
indirection. This way, restarting composer won't confuse it when a stray
worker returns a result for a job that was still running. Also,
artifacts are only moved to the final location once a job finishes.
This change breaks backwards compatibility, but we're not yet promising
a stable worker API to anyone.
This drops the transition tests in server_test.go. These don't make much
sense anymore, because there's only one allowed transition, from running
to finished. They heavily relied on job slot ids, which are not easily
accessible with the `TestRoute` API. Overall, adjusting this seemed like
too much work for their benefit.
In the same way `osbuild.Manifest` is the input to the osbuild API,
`osbuild.Result` is the output. Move it to the `osbuild` package where
it belongs.
This is not a functional change.
Signed-off-by: Tom Gundersen <teg@jklm.no>
Rather than Manifest() returning an osbuild.Manifest object, introduce a
new distro.Manifest object which represents it as an opaque, JSON
serializable object. This new type has the following properties:
1) its serialization is compatible with the input to osbuild,
2) any valid osbuild input can be deserialized into it, and
3) marshalling and unmarshaling to and from JSON is lossless.
This means that even as we change the subset of valid osbulid manifests
that we support, we can still load any previous state from disk, and it
will continue to work just as before, even though we can no longer
deserialize it into our internal notion of osbuild.Manifest.
This fixes the underlying problem of which #685 was a symptom.
Signed-off-by: Tom Gundersen <teg@jklm.no>
There are times where it would be good to monitor that osbuild-composer
is up and running. Add a very simple status check that always returns
200/OK. This can be expanded later to verify that other parts of
osbuild-composer are working properly.
Signed-off-by: Major Hayden <major@redhat.com>
The store is responsible for two things: user state and the compose queue. This
is problematic, because the rcm API has slightly different semantics from weldr
and only used the queue part of the store. Also, the store is simply too
complex.
This commit splits the queue part out, using the new jobqueue package in both
the weldr and the rcm package. The queue is saved to a new directory `queue/`.
The weldr package now also has access to a worker server to enqueue and list
jobs. Its store continues to track composes, but the `QueueStatus` for each
compose (and image build) is deprecated. The field in `ImageBuild` is kept for
backwards compatibility for composes which finished before this change, but a
lot of code dealing with it in package compose is dropped.
store.PushCompose() is degraded to storing a new compose. It should probably be
renamed in the future. store.PopJob() is removed.
Job ids are now independent of compose ids. Because of that, the local
target gains ComposeId and ImageBuildId fields, because a worker cannot
infer those from a job anymore. This also necessitates a change in the
worker API: the job routes are changed to expect that instead of a
(compose id, image build id) pair. The route that accepts built images
keeps that pair, because it reports the image back to weldr.
worker.Server() now interacts with a job queue instead of the store. It gains
public functions that allow enqueuing an osbuild job and getting its status,
because only it knows about the specific argument and result types in the job
queue (OSBuildJob and OSBuildJobResult). One oddity remains: it needs to report
an uploaded image to weldr. Do this with a function that's passed in for now,
so that the dependency to the store can be dropped completely.
The rcm API drops its dependencies to package blueprint and store, because it
too interacts only with the worker server now.
Fixes#342
This package does not contain an actual queue, but a server and client
implementation for osbuild's worker API. Name it accordingly.
The queue is in package `store` right now, but about to be split off.
This rename makes the `jobqueue` name free for that effort.
