Add Honeycomb tracing to all Boulder components which act as
HTTP servers, gRPC servers, or gRPC clients. Add many values
which we currently emit to logs to the trace spans. Add a way to
configure the Honeycomb integration to our config files, and by
default configure all of our tests to "mute" (send nothing).
Followup changes will refine the configuration, attempt to reduce
the new dependency load, and introduce better sampling.
Part of https://github.com/letsencrypt/dev-misc-tickets/issues/218
Fixes#3837
```
$ go test google.golang.org/grpc/...
ok google.golang.org/grpc 24.275s
? google.golang.org/grpc/balancer [no test files]
? google.golang.org/grpc/balancer/base [no test files]
ok google.golang.org/grpc/balancer/grpclb 7.271s
? google.golang.org/grpc/balancer/grpclb/grpc_lb_v1 [no test files]
ok google.golang.org/grpc/balancer/roundrobin 0.427s
ok google.golang.org/grpc/benchmark 0.006s [no tests to run]
? google.golang.org/grpc/benchmark/benchmain [no test files]
? google.golang.org/grpc/benchmark/benchresult [no test files]
? google.golang.org/grpc/benchmark/client [no test files]
? google.golang.org/grpc/benchmark/grpc_testing [no test files]
ok google.golang.org/grpc/benchmark/latency 1.012s
ok google.golang.org/grpc/benchmark/primitives 0.036s [no tests to run]
? google.golang.org/grpc/benchmark/server [no test files]
? google.golang.org/grpc/benchmark/stats [no test files]
? google.golang.org/grpc/benchmark/worker [no test files]
? google.golang.org/grpc/binarylog/grpc_binarylog_v1 [no test files]
? google.golang.org/grpc/channelz/grpc_channelz_v1 [no test files]
ok google.golang.org/grpc/channelz/service 0.024s
ok google.golang.org/grpc/codes 0.006s
? google.golang.org/grpc/connectivity [no test files]
ok google.golang.org/grpc/credentials 0.014s
ok google.golang.org/grpc/credentials/alts 0.009s
? google.golang.org/grpc/credentials/alts/internal [no test files]
ok google.golang.org/grpc/credentials/alts/internal/authinfo 0.006s
ok google.golang.org/grpc/credentials/alts/internal/conn 0.133s
ok google.golang.org/grpc/credentials/alts/internal/handshaker 0.045s
ok google.golang.org/grpc/credentials/alts/internal/handshaker/service 0.013s
? google.golang.org/grpc/credentials/alts/internal/proto/grpc_gcp [no test files]
? google.golang.org/grpc/credentials/alts/internal/testutil [no test files]
? google.golang.org/grpc/credentials/google [no test files]
? google.golang.org/grpc/credentials/oauth [no test files]
? google.golang.org/grpc/encoding [no test files]
? google.golang.org/grpc/encoding/gzip [no test files]
ok google.golang.org/grpc/encoding/proto 0.075s
? google.golang.org/grpc/examples/helloworld/greeter_client [no test files]
? google.golang.org/grpc/examples/helloworld/greeter_server [no test files]
? google.golang.org/grpc/examples/helloworld/helloworld [no test files]
ok google.golang.org/grpc/examples/helloworld/mock_helloworld 0.011s
? google.golang.org/grpc/examples/oauth/client [no test files]
? google.golang.org/grpc/examples/oauth/server [no test files]
? google.golang.org/grpc/examples/route_guide/client [no test files]
ok google.golang.org/grpc/examples/route_guide/mock_routeguide 0.039s
? google.golang.org/grpc/examples/route_guide/routeguide [no test files]
? google.golang.org/grpc/examples/route_guide/server [no test files]
? google.golang.org/grpc/examples/rpc_errors/client [no test files]
? google.golang.org/grpc/examples/rpc_errors/server [no test files]
ok google.golang.org/grpc/grpclog 0.007s
? google.golang.org/grpc/grpclog/glogger [no test files]
ok google.golang.org/grpc/health 0.005s
? google.golang.org/grpc/health/grpc_health_v1 [no test files]
? google.golang.org/grpc/internal [no test files]
? google.golang.org/grpc/internal/backoff [no test files]
ok google.golang.org/grpc/internal/binarylog 0.006s
ok google.golang.org/grpc/internal/channelz 0.012s
? google.golang.org/grpc/internal/envconfig [no test files]
? google.golang.org/grpc/internal/grpcrand [no test files]
ok google.golang.org/grpc/internal/grpcsync 0.013s
ok google.golang.org/grpc/internal/leakcheck 4.052s
? google.golang.org/grpc/internal/syscall [no test files]
ok google.golang.org/grpc/internal/testutils 0.002s
ok google.golang.org/grpc/internal/transport 81.968s
? google.golang.org/grpc/interop [no test files]
? google.golang.org/grpc/interop/alts/client [no test files]
? google.golang.org/grpc/interop/alts/server [no test files]
? google.golang.org/grpc/interop/client [no test files]
? google.golang.org/grpc/interop/fake_grpclb [no test files]
? google.golang.org/grpc/interop/grpc_testing [no test files]
? google.golang.org/grpc/interop/http2 [no test files]
? google.golang.org/grpc/interop/server [no test files]
? google.golang.org/grpc/keepalive [no test files]
ok google.golang.org/grpc/metadata 0.006s
ok google.golang.org/grpc/naming 0.159s
? google.golang.org/grpc/peer [no test files]
ok google.golang.org/grpc/reflection 0.016s
? google.golang.org/grpc/reflection/grpc_reflection_v1alpha [no test files]
? google.golang.org/grpc/reflection/grpc_testing [no test files]
? google.golang.org/grpc/reflection/grpc_testingv3 [no test files]
? google.golang.org/grpc/resolver [no test files]
ok google.golang.org/grpc/resolver/dns 1.370s
? google.golang.org/grpc/resolver/manual [no test files]
? google.golang.org/grpc/resolver/passthrough [no test files]
ok google.golang.org/grpc/stats 0.104s
? google.golang.org/grpc/stats/grpc_testing [no test files]
ok google.golang.org/grpc/status 0.017s
? google.golang.org/grpc/stress/client [no test files]
? google.golang.org/grpc/stress/grpc_testing [no test files]
? google.golang.org/grpc/stress/metrics_client [no test files]
? google.golang.org/grpc/tap [no test files]
ok google.golang.org/grpc/test 33.866s
ok google.golang.org/grpc/test/bufconn 0.005s
? google.golang.org/grpc/test/codec_perf [no test files]
? google.golang.org/grpc/test/go_vet [no test files]
? google.golang.org/grpc/test/grpc_testing [no test files]
```
Aaron Gable
Jacob Hoffman-Andrews