Add a Top page to the linkerd web UI. This is the web equivalent of #1435.
I've used the same fields as in the current implementation.
This branch also includes some slight refactors to the Tap code to enable code reuse.
The request processing logic is pretty similar to that in Tap.jsx, except that we can
immediately discard the result once we receive the response end and aggregate
that result into the top results. So the index of tap results will tend to be smaller
(unless they're long running requests like streaming). But we also add a similar
index of aggregated Top results, and discard oldest results if top has been
running for a long time.
* Add a Top page to the web UI
* Refactor Tap event parsing into common util code
* Small refactors to the TapQueryForm and the CliCmd display to accomodate Top
* Collate tap events based on the ID (src, dst, stream)
* Also refactor keying of req/rsp/end into requestInit/responseInit/responseEnd for clarity
* Use pod labels when present in top
* Fix bug where src/dst were switched in the Tap display table
Now that we have source metadata in tap events, we can display
the pod name in the UI instead of the IP. I've also added a popover
that shows deploy and pod info if we have it.
Also adds another table in the expanded row view to show all the
metadata we have. This table probably won't stick around forever,
but I'm just displaying all the data we have right now.
Add client side filtering to the tap table, so that we can narrow down
queries while still tapping a whole resource.
There are two general kinds of filters here:
- filters where the number of possible values is bounded/small and
we know them (e.g. inbound/outbound, grpc status). here, I've tried to
hardcode the list of possible options with explanations (see the GRPC status filters)
- filters where the number of possible values can be very large (e.g. paths)
here, I've generated the list of options as we process the incoming data.
I also periodically delete the oldest filter option so the list of filters
doesn't grow unbounded
Filters added:
- GRPC status code filters
- http status filters
- path filters
- scheme filters
- tls, destination and source filters
* Make use of the Web UI to render tap events in a table
- Return JSON tap events instead of the command line output
- Experiment with a different way of rendering the EventList
- changed the default width back to 100% of the screen because this
table does not look great squished
Risha Mars