* Remove old dockerfile and only build a single image with unit
We have migrated over to the `unit` image (instead of gunicorn) but we
were still building both. This could lead to confusion - we have no
plans to move back so let's remove the second image build and only
build the unit based image
* Remove unit build id
Problem
see #15200 (comment)
When we store session recording events we materialize a lot of information using the snapshot data column.
We'll soon not be storing the snapshot data so won't be able to use that to materialize that information, so we need to capture it earlier in the pipeline. Since this is only used for searching for/summarizing recordings we don't need to store every event.
Changes
We'll push a summary event to a new kafka topic during ingestion. ClickHouse can ingest from that topic into an aggregating merge tree table. So that we store (in theory, although not in practice) only one row per session.
add config to turn this on and off by team in plugin server
add code behind that to write session recording summary events to a new topic in kafka
add ClickHouse tables to ingest and aggregate those summary events
Truncate preview deploy namespaces to 38 characters
Including our tailscale suffix (.hedgehog-kitefin.ts.net) this is the limit
before letsencrypt complains, it only allows DNS names of 64 characters or less
