Extend the existing maglev_info gauge with two more labels:
- version (build version, from -ldflags)
- commit (git short hash)
Mirrors nginx_ipng_stats-plugin's nginx_ipng_info pattern: a
label-only gauge value=1 carrying build metadata for Prometheus
to query and Grafana dashboards to render. Useful for spotting
version drift across the fleet with a single query, and for
populating the "Version" column of the Maglev Nodes table on
the global overview.
Existing label source_tag is preserved.
Plumbing: NewCollector / Register signatures gain version and
commit string parameters; main.go reads them from cmd.Version()
and cmd.Commit() (already imported as 'buildinfo').
Bump VERSION to 1.0.0 and cut the first tagged release of vpp-maglev.
Also in this commit:
- maglevc: MAGLEV_SERVER env var as an alternative to the --server
flag, matching the MAGLEV_CONFIG / MAGLEV_GRPC_ADDR convention on
the other binaries. The flag takes precedence when both are set.
- Rename cmd/maglevd -> cmd/server and cmd/maglevc -> cmd/client so
the source directory names are decoupled from binary names (the
frontend and tester commands already followed this convention).
Build outputs and the Debian packages are unchanged.
Pim van Pelt