This PR upgrades our CI images and fixes some affected tests.
- upgrade go-machine-image to premade latest ubuntu LTS (ubuntu-2004:202111-02)
- eliminate go-machine-recent-image (no longer necessary)
- manage GOPATH in GNUMakefile (see https://discuss.circleci.com/t/gopath-is-set-to-multiple-directories/7174)
- fix tcp dial error check (message seems to be OS specific)
- spot check values measured instead of specifically 'RSS' (rss no longer reported in cgroups v2)
- use safe MkdirTemp for generating tmpfiles
NOT applied: (too flakey)
- eliminate setting GOMAXPROCS=1 (build tools were also affected by this setting)
- upgrade resource type for all imanges to large (2C -> 4C)
* add goroutine text profiles to nomad operator debug
* add server-id=all to nomad operator debug
* fix bug from changing metrics from string to []byte
* Add function to return MetricsSummary struct, metrics gotemplate support
* fix bug resolving 'server-id=all' when no servers are available
* add url to operator_debug tests
* removed test section which is used for future operator_debug.go changes
* separate metrics from operator, use only structs from go-metrics
* ensure parent directories are created as needed
* add suggested comments for text debug pprof
* move check down to where it is used
* add WaitForFiles helper function to wait for multiple files to exist
* compact metrics check
Co-authored-by: Drew Bailey <2614075+drewbailey@users.noreply.github.com>
* fix github's silly apply suggestion
Co-authored-by: Drew Bailey <2614075+drewbailey@users.noreply.github.com>
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