upgrade packages

fix broken startup on disabled servers
update TODO
2025-05-04 10:06:01 -04:00 · 2025-03-30 11:27:41 -04:00 · 2025-03-26 12:58:32 -04:00 · 2025-03-26 08:30:51 -04:00 · 2025-03-25 10:49:58 -04:00 · 2025-03-25 10:49:47 -04:00
31 changed files with 1158 additions and 372 deletions
--- a/TODO.md
+++ b/TODO.md
@ -1,8 +1,13 @@
 # TODO

- [x] Pattern for extending config
+- [ ] Expand config test case to cover GRPC config
+- [ ] Expand tracing

 ## Done
+
+- [x] Test and troubleshoot GRPC Gateway supprot
+- [x] Finish implementing GRPC service support
 - [x] Unit tests
+- [x] Pattern for extending config
 - [x] HTTP Logging Middleware
 - [x] Fix panic with OTEL disabled
--- a/go.mod
+++ b/go.mod
@ -1,22 +1,27 @@
 module gitea.libretechconsulting.com/rmcguire/go-app

-go 1.23.4
+go 1.24.2

 require (
 	github.com/caarlos0/env/v11 v11.3.1
-	github.com/prometheus/client_golang v1.20.5
-	github.com/rs/zerolog v1.33.0
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.58.0
-	go.opentelemetry.io/otel v1.33.0
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.33.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.33.0
-	go.opentelemetry.io/otel/exporters/prometheus v0.55.0
-	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.33.0
-	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.33.0
-	go.opentelemetry.io/otel/metric v1.33.0
-	go.opentelemetry.io/otel/sdk v1.33.0
-	go.opentelemetry.io/otel/sdk/metric v1.33.0
-	go.opentelemetry.io/otel/trace v1.33.0
+	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.2
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3
+	github.com/prometheus/client_golang v1.22.0
+	github.com/rs/zerolog v1.34.0
+	github.com/swaggest/jsonschema-go v0.3.73
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0
+	go.opentelemetry.io/otel v1.35.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.35.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.35.0
+	go.opentelemetry.io/otel/exporters/prometheus v0.57.0
+	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.35.0
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.35.0
+	go.opentelemetry.io/otel/metric v1.35.0
+	go.opentelemetry.io/otel/sdk v1.35.0
+	go.opentelemetry.io/otel/sdk/metric v1.35.0
+	go.opentelemetry.io/otel/trace v1.35.0
+	google.golang.org/grpc v1.72.0
 	gopkg.in/yaml.v3 v3.0.1
 )

@ -28,22 +33,20 @@ require (
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.25.1 // indirect
-	github.com/klauspost/compress v1.17.11 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.61.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.63.0 // indirect
+	github.com/prometheus/procfs v0.16.1 // indirect
+	github.com/swaggest/refl v1.3.1 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.33.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.5.0 // indirect
-	golang.org/x/net v0.34.0 // indirect
-	golang.org/x/sys v0.29.0 // indirect
-	golang.org/x/text v0.21.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250106144421-5f5ef82da422 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250106144421-5f5ef82da422 // indirect
-	google.golang.org/grpc v1.69.2 // indirect
-	google.golang.org/protobuf v1.36.2 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.6.0 // indirect
+	golang.org/x/net v0.39.0 // indirect
+	golang.org/x/sys v0.32.0 // indirect
+	golang.org/x/text v0.24.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250428153025-10db94c68c34 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250428153025-10db94c68c34 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -1,5 +1,9 @@
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/bool64/dev v0.2.39 h1:kP8DnMGlWXhGYJEZE/J0l/gVBdbuhoPGL+MJG4QbofE=
+github.com/bool64/dev v0.2.39/go.mod h1:iJbh1y/HkunEPhgebWRNcs8wfGq7sjvJ6W5iabL8ACg=
+github.com/bool64/shared v0.1.5 h1:fp3eUhBsrSjNCQPcSdQqZxxh9bBwrYiZ+zOKFkM0/2E=
+github.com/bool64/shared v0.1.5/go.mod h1:081yz68YC9jeFB3+Bbmno2RFWvGKv1lPKkMP6MHJlPs=
 github.com/caarlos0/env/v11 v11.3.1 h1:cArPWC15hWmEt+gWk7YBi7lEXTXCvpaSdCiZE2X5mCA=
 github.com/caarlos0/env/v11 v11.3.1/go.mod h1:qupehSf/Y0TUTsxKywqRt/vJjN5nz6vauiYEUUr8P4U=
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
@ -19,21 +23,24 @@ github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.25.1 h1:VNqngBF40hVlDloBruUehVYC3ArSgIyScOAyMRqBxRg=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.25.1/go.mod h1:RBRO7fro65R6tjKzYgLAFo0t1QEXY1Dp+i/bvpRiqiQ=
-github.com/klauspost/compress v1.17.11 h1:In6xLpyWOi1+C7tXUUWv2ot1QvBjxevKAaI6IXrJmUc=
-github.com/klauspost/compress v1.17.11/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90U12bZKk7uwG0=
+github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.2 h1:sGm2vDRFUrQJO/Veii4h4zG2vvqG6uWNkBHSTqXOZk0=
+github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.2/go.mod h1:wd1YpapPLivG6nQgbf7ZkG1hhSOXDhhn4MLTknx2aAc=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
+github.com/iancoleman/orderedmap v0.3.0 h1:5cbR2grmZR/DiVt+VJopEhtVs9YGInGIxAoMJn+Ichc=
+github.com/iancoleman/orderedmap v0.3.0/go.mod h1:XuLcCUkdL5owUCQeF2Ue9uuw1EptkJDkXXS7VoV7XGE=
+github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
+github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
-github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
 github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
@ -46,78 +53,82 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8m
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.20.5 h1:cxppBPuYhUnsO6yo/aoRol4L7q7UFfdm+bR9r+8l63Y=
-github.com/prometheus/client_golang v1.20.5/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
-github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
-github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
-github.com/prometheus/common v0.61.0 h1:3gv/GThfX0cV2lpO7gkTUwZru38mxevy90Bj8YFSRQQ=
-github.com/prometheus/common v0.61.0/go.mod h1:zr29OCN/2BsJRaFwG8QOBr41D6kkchKbpeNH7pAjb/s=
-github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc=
-github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
+github.com/prometheus/client_golang v1.22.0 h1:rb93p9lokFEsctTys46VnV1kLCDpVZ0a/Y92Vm0Zc6Q=
+github.com/prometheus/client_golang v1.22.0/go.mod h1:R7ljNsLXhuQXYZYtw6GAE9AZg8Y7vEW5scdCXrWRXC0=
+github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk=
+github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE=
+github.com/prometheus/common v0.63.0 h1:YR/EIY1o3mEFP/kZCD7iDMnLPlGyuU2Gb3HIcXnA98k=
+github.com/prometheus/common v0.63.0/go.mod h1:VVFF/fBIoToEnWRVkYoXEkq3R3paCoxG9PXP74SnV18=
+github.com/prometheus/procfs v0.16.1 h1:hZ15bTNuirocR6u0JZ6BAHHmwS1p8B4P6MRqxtzMyRg=
+github.com/prometheus/procfs v0.16.1/go.mod h1:teAbpZRB1iIAJYREa1LsoWUXykVXA1KlTmWl8x/U+Is=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
 github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
-github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
-github.com/rs/zerolog v1.33.0 h1:1cU2KZkvPxNyfgEmhHAz/1A9Bz+llsdYzklWFzgp0r8=
-github.com/rs/zerolog v1.33.0/go.mod h1:/7mN4D5sKwJLZQ2b/znpjC3/GQWY/xaDXUM0kKWRHss=
+github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
+github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
+github.com/rs/zerolog v1.34.0/go.mod h1:bJsvje4Z08ROH4Nhs5iH600c3IkWhwp44iRc54W6wYQ=
+github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=
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 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/swaggest/assertjson v1.9.0 h1:dKu0BfJkIxv/xe//mkCrK5yZbs79jL7OVf9Ija7o2xQ=
+github.com/swaggest/assertjson v1.9.0/go.mod h1:b+ZKX2VRiUjxfUIal0HDN85W0nHPAYUbYH5WkkSsFsU=
+github.com/swaggest/jsonschema-go v0.3.73 h1:gU1pBzF3pkZ1GDD3dRMdQoCjrA0sldJ+QcM7aSSPgvc=
+github.com/swaggest/jsonschema-go v0.3.73/go.mod h1:qp+Ym2DIXHlHzch3HKz50gPf2wJhKOrAB/VYqLS2oJU=
+github.com/swaggest/refl v1.3.1 h1:XGplEkYftR7p9cz1lsiwXMM2yzmOymTE9vneVVpaOh4=
+github.com/swaggest/refl v1.3.1/go.mod h1:4uUVFVfPJ0NSX9FPwMPspeHos9wPFlCMGoPRllUbpvA=
+github.com/yudai/gojsondiff v1.0.0 h1:27cbfqXLVEJ1o8I6v3y9lg8Ydm53EKqHXAOMxEGlCOA=
+github.com/yudai/gojsondiff v1.0.0/go.mod h1:AY32+k2cwILAkW1fbgxQ5mUmMiZFgLIV+FBNExI05xg=
+github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82 h1:BHyfKlQyqbsFN5p3IfnEUduWvb9is428/nNb5L3U01M=
+github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82/go.mod h1:lgjkn3NuSvDfVJdfcVVdX+jpBxNmX4rDAzaS45IcYoM=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.58.0 h1:yd02MEjBdJkG3uabWP9apV+OuWRIXGDuJEUJbOHmCFU=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.58.0/go.mod h1:umTcuxiv1n/s/S6/c2AT/g2CQ7u5C59sHDNmfSwgz7Q=
-go.opentelemetry.io/otel v1.33.0 h1:/FerN9bax5LoK51X/sI0SVYrjSE0/yUL7DpxW4K3FWw=
-go.opentelemetry.io/otel v1.33.0/go.mod h1:SUUkR6csvUQl+yjReHu5uM3EtVV7MBm5FHKRlNx4I8I=
-go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.33.0 h1:7F29RDmnlqk6B5d+sUqemt8TBfDqxryYW5gX6L74RFA=
-go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.33.0/go.mod h1:ZiGDq7xwDMKmWDrN1XsXAj0iC7hns+2DhxBFSncNHSE=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.33.0 h1:Vh5HayB/0HHfOQA7Ctx69E/Y/DcQSMPpKANYVMQ7fBA=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.33.0/go.mod h1:cpgtDBaqD/6ok/UG0jT15/uKjAY8mRA53diogHBg3UI=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.33.0 h1:5pojmb1U1AogINhN3SurB+zm/nIcusopeBNp42f45QM=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.33.0/go.mod h1:57gTHJSE5S1tqg+EKsLPlTWhpHMsWlVmer+LA926XiA=
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-go.opentelemetry.io/otel/exporters/prometheus v0.55.0/go.mod h1:nC00vyCmQixoeaxF6KNyP42II/RHa9UdruK02qBmHvI=
-go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.33.0 h1:FiOTYABOX4tdzi8A0+mtzcsTmi6WBOxk66u0f1Mj9Gs=
-go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.33.0/go.mod h1:xyo5rS8DgzV0Jtsht+LCEMwyiDbjpsxBpWETwFRF0/4=
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-go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.33.0/go.mod h1:mzKxJywMNBdEX8TSJais3NnsVZUaJ+bAy6UxPTng2vk=
-go.opentelemetry.io/otel/metric v1.33.0 h1:r+JOocAyeRVXD8lZpjdQjzMadVZp2M4WmQ+5WtEnklQ=
-go.opentelemetry.io/otel/metric v1.33.0/go.mod h1:L9+Fyctbp6HFTddIxClbQkjtubW6O9QS3Ann/M82u6M=
-go.opentelemetry.io/otel/sdk v1.33.0 h1:iax7M131HuAm9QkZotNHEfstof92xM+N8sr3uHXc2IM=
-go.opentelemetry.io/otel/sdk v1.33.0/go.mod h1:A1Q5oi7/9XaMlIWzPSxLRWOI8nG3FnzHJNbiENQuihM=
-go.opentelemetry.io/otel/sdk/metric v1.33.0 h1:Gs5VK9/WUJhNXZgn8MR6ITatvAmKeIuCtNbsP3JkNqU=
-go.opentelemetry.io/otel/sdk/metric v1.33.0/go.mod h1:dL5ykHZmm1B1nVRk9dDjChwDmt81MjVp3gLkQRwKf/Q=
-go.opentelemetry.io/otel/trace v1.33.0 h1:cCJuF7LRjUFso9LPnEAHJDB2pqzp+hbO8eu1qqW2d/s=
-go.opentelemetry.io/otel/trace v1.33.0/go.mod h1:uIcdVUZMpTAmz0tI1z04GoVSezK37CbGV4fr1f2nBck=
-go.opentelemetry.io/proto/otlp v1.4.0 h1:TA9WRvW6zMwP+Ssb6fLoUIuirti1gGbP28GcKG1jgeg=
-go.opentelemetry.io/proto/otlp v1.4.0/go.mod h1:PPBWZIP98o2ElSqI35IHfu7hIhSwvc5N38Jw8pXuGFY=
-go.opentelemetry.io/proto/otlp v1.5.0 h1:xJvq7gMzB31/d406fB8U5CBdyQGw4P399D1aQWU/3i4=
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+go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 h1:x7wzEgXfnzJcHDwStJT+mxOz4etr2EcexjqhBvmoakw=
+go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0/go.mod h1:rg+RlpR5dKwaS95IyyZqj5Wd4E13lk/msnTS0Xl9lJM=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 h1:sbiXRNDSWJOTobXh5HyQKjq6wUC5tNybqjIqDpAY4CU=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0/go.mod h1:69uWxva0WgAA/4bu2Yy70SLDBwZXuQ6PbBpbsa5iZrQ=
+go.opentelemetry.io/otel v1.35.0 h1:xKWKPxrxB6OtMCbmMY021CqC45J+3Onta9MqjhnusiQ=
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+go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.35.0/go.mod h1:CXIWhUomyWBG/oY2/r/kLp6K/cmx9e/7DLpBuuGdLCA=
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 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
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--- a/pkg/app/app.go
+++ b/pkg/app/app.go
@ -1,93 +0,0 @@
-package app
-
-import (
-	"context"
-	"errors"
-
-	"github.com/rs/zerolog"
-	"go.opentelemetry.io/otel/codes"
-	"go.opentelemetry.io/otel/trace"
-
-	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
-	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/otel"
-	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv"
-)
-
-type App struct {
-	AppContext    context.Context
-	HTTP          *AppHTTP
-	cfg           *config.AppConfig
-	l             *zerolog.Logger
-	tracer        trace.Tracer
-	shutdownFuncs []shutdownFunc
-	appDone       chan interface{}
-}
-
-type AppHTTP struct {
-	Funcs        []srv.HTTPFunc
-	HealthChecks []srv.HealthCheckFunc
-	httpDone     <-chan interface{}
-}
-
-type (
-	healthCheckFunc func(context.Context) error
-	shutdownFunc    func(context.Context) error
-)
-
-func (a *App) Done() <-chan interface{} {
-	return a.appDone
-}
-
-func (a *App) MustRun() {
-	if a.cfg != nil {
-		panic(errors.New("already ran app trying to run"))
-	}
-
-	// Set up app
-	a.cfg = config.MustFromCtx(a.AppContext)
-	a.l = zerolog.Ctx(a.AppContext)
-	a.shutdownFuncs = make([]shutdownFunc, 0)
-	a.appDone = make(chan interface{})
-	a.HTTP.httpDone = make(chan interface{})
-
-	if len(a.HTTP.Funcs) < 1 {
-		a.l.Warn().Msg("no http funcs provided, only serving health and metrics")
-	}
-
-	// Start OTEL
-	a.initOTEL()
-	var initSpan trace.Span
-	_, initSpan = a.tracer.Start(a.AppContext, "init")
-
-	// Start HTTP
-	a.initHTTP()
-
-	// Monitor app lifecycle
-	go a.run()
-
-	// Startup Complete
-	a.l.Info().
-		Str("name", a.cfg.Name).
-		Str("version", a.cfg.Version).
-		Str("logLevel", a.cfg.Logging.Level).
-		Msg("app initialized")
-	initSpan.SetStatus(codes.Ok, "")
-	initSpan.End()
-}
-
-func (a *App) initHTTP() {
-	var httpShutdown shutdownFunc
-	httpShutdown, a.HTTP.httpDone = srv.MustInitHTTPServer(
-		a.AppContext,
-		a.HTTP.Funcs,
-		a.HTTP.HealthChecks...,
-	)
-	a.shutdownFuncs = append(a.shutdownFuncs, httpShutdown)
-}
-
-func (a *App) initOTEL() {
-	var otelShutdown shutdownFunc
-	a.AppContext, otelShutdown = otel.Init(a.AppContext)
-	a.shutdownFuncs = append(a.shutdownFuncs, otelShutdown)
-	a.tracer = otel.MustTracerFromCtx(a.AppContext)
-}
--- a/pkg/app/app_types.go
+++ b/pkg/app/app_types.go
@ -0,0 +1,25 @@
+package app
+
+import (
+	"context"
+
+	"github.com/rs/zerolog"
+	"go.opentelemetry.io/otel/trace"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
+	grpcopts "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
+	httpopts "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
+)
+
+type App struct {
+	AppContext    context.Context
+	HTTP          *httpopts.AppHTTP
+	GRPC          *grpcopts.AppGRPC
+	cfg           *config.AppConfig
+	l             *zerolog.Logger
+	tracer        trace.Tracer
+	shutdownFuncs []shutdownFunc
+	appDone       chan any
+}
+
+type shutdownFunc func(context.Context) error
--- a/pkg/app/init.go
+++ b/pkg/app/init.go
@ -0,0 +1,70 @@
+package app
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/otel"
+	srvgrpc "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc"
+	grpcopts "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
+	srvhttp "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http"
+)
+
+func (a *App) initGRPC(ctx context.Context) error {
+	ctx, span := a.tracer.Start(ctx, "init.grpc")
+	defer span.End()
+
+	shutdown, doneChan, err := srvgrpc.InitGRPCServer(ctx,
+		&grpcopts.GRPCOpts{
+			GRPCConfig: a.cfg.GRPC,
+			AppGRPC:    a.GRPC,
+		})
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+		return err
+	}
+
+	a.shutdownFuncs = append(a.shutdownFuncs, shutdown)
+	a.GRPC.GRPCDone = doneChan
+
+	span.SetStatus(codes.Ok, "")
+	return nil
+}
+
+func (a *App) initHTTP(ctx context.Context) error {
+	var err error
+	var httpShutdown shutdownFunc
+
+	_, span := a.tracer.Start(ctx, "init.http")
+	defer span.End()
+
+	span.SetAttributes(
+		attribute.Int("numHTTPFuncs", len(a.HTTP.Funcs)),
+		attribute.Int("numHTTPMiddlewares", len(a.HTTP.Middleware)),
+		attribute.Int("numHTTPHealthChecks", len(a.HTTP.HealthChecks)),
+	)
+
+	a.HTTP.Ctx = a.AppContext
+	httpShutdown, a.HTTP.HTTPDone, err = srvhttp.InitHTTPServer(a.HTTP)
+
+	a.shutdownFuncs = append(a.shutdownFuncs, httpShutdown)
+
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+	} else {
+		span.SetStatus(codes.Ok, "")
+	}
+
+	return err
+}
+
+func (a *App) initOTEL() {
+	var otelShutdown shutdownFunc
+	a.AppContext, otelShutdown = otel.Init(a.AppContext)
+	a.shutdownFuncs = append(a.shutdownFuncs, otelShutdown)
+	a.tracer = otel.MustTracerFromCtx(a.AppContext)
+}
--- a/pkg/app/monitor.go
+++ b/pkg/app/monitor.go
@ -0,0 +1,72 @@
+package app
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+)
+
+// Watches contexts and channels for the
+// app to be finished and calls shutdown once
+// the app is done
+func (a *App) monitor() {
+	select {
+	case <-a.AppContext.Done():
+		a.l.Warn().Str("reason", a.AppContext.Err().Error()).
+			Msg("shutting down on context done")
+	case <-a.HTTP.HTTPDone: // TODO: return error on this channel
+		a.l.Warn().Msg("shutting down early on http server done")
+	case err := <-a.GRPC.GRPCDone:
+		a.l.Warn().Err(err).Msg("shutting down early on grpc server done")
+	}
+
+	a.Shutdown()     // Run through all shutdown funcs
+	a.appDone <- nil // Notify app
+}
+
+// Typically invoked when AppContext is done
+// or Server has exited. Not intended to be called
+// manually
+func (a *App) Shutdown() {
+	now := time.Now()
+
+	doneCtx, cncl := context.WithTimeout(context.Background(), 15*time.Second)
+	defer func() {
+		if doneCtx.Err() == context.DeadlineExceeded {
+			a.l.Err(doneCtx.Err()).
+				Dur("shutdownTime", time.Since(now)).
+				Msg("app shutdown aborted")
+		} else {
+			a.l.Info().
+				Int("shutdownFuncsCalled", len(a.shutdownFuncs)).
+				Dur("shutdownTime", time.Since(now)).
+				Msg("app shutdown normally")
+		}
+		cncl()
+	}()
+
+	doneCtx, span := a.tracer.Start(doneCtx, "shutdown")
+	defer span.End()
+
+	span.SetAttributes(attribute.Int("shutdown.funcs", len(a.shutdownFuncs)))
+
+	var wg sync.WaitGroup
+	wg.Add(len(a.shutdownFuncs))
+
+	for _, f := range a.shutdownFuncs {
+		go func() {
+			defer wg.Done()
+			err := f(doneCtx)
+			if err != nil {
+				span.SetStatus(codes.Error, "shutdown failed")
+				span.RecordError(err)
+				a.l.Err(err).Send()
+			}
+		}()
+	}
+
+	wg.Wait()
+}
--- a/pkg/app/run.go
+++ b/pkg/app/run.go
@ -1,67 +1,63 @@
 package app

 import (
-	"context"
-	"sync"
-	"time"
+	"errors"

+	"github.com/rs/zerolog"
 	"go.opentelemetry.io/otel/codes"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
 )

-// Watches contexts and channels for the
-// app to be finished and calls shutdown once
-// the app is done
-func (a *App) run() {
-	select {
-	case <-a.AppContext.Done():
-		a.l.Warn().Str("reason", a.AppContext.Err().Error()).
-			Msg("shutting down on context done")
-	case <-a.HTTP.httpDone:
-		a.l.Warn().Msg("shutting down early on http server done")
-	}
-	a.Shutdown()
-
-	a.appDone <- nil
+func (a *App) Done() <-chan any {
+	return a.appDone
 }

-// Typically invoked when AppContext is done
-// or Server has exited. Not intended to be called
-// manually
-func (a *App) Shutdown() {
-	now := time.Now()
-
-	doneCtx, cncl := context.WithTimeout(context.Background(), 15*time.Second)
-	defer func() {
-		if doneCtx.Err() == context.DeadlineExceeded {
-			a.l.Err(doneCtx.Err()).
-				Dur("shutdownTime", time.Since(now)).
-				Msg("app shutdown aborted")
-		} else {
-			a.l.Info().
-				Int("shutdownFuncsCalled", len(a.shutdownFuncs)).
-				Dur("shutdownTime", time.Since(now)).
-				Msg("app shutdown normally")
-		}
-		cncl()
-	}()
-
-	doneCtx, span := a.tracer.Start(doneCtx, "shutdown")
-	defer span.End()
-
-	var wg sync.WaitGroup
-	wg.Add(len(a.shutdownFuncs))
-
-	for _, f := range a.shutdownFuncs {
-		go func() {
-			defer wg.Done()
-			err := f(doneCtx)
-			if err != nil {
-				span.SetStatus(codes.Error, "shutdown failed")
-				span.RecordError(err)
-				a.l.Err(err).Send()
-			}
-		}()
+func (a *App) MustRun() {
+	if a.cfg != nil {
+		panic(errors.New("already ran app trying to run"))
 	}

-	wg.Wait()
+	// Set up app
+	a.cfg = config.MustFromCtx(a.AppContext)
+	a.l = zerolog.Ctx(a.AppContext)
+	a.shutdownFuncs = make([]shutdownFunc, 0)
+	a.appDone = make(chan any)
+	a.HTTP.HTTPDone = make(chan any)
+
+	if !a.cfg.HTTPEnabled() && !a.cfg.GRPCEnabled() {
+		panic(errors.New("neither http nor grpc enabled, nothing to do"))
+	}
+
+	if len(a.HTTP.Funcs) < 1 {
+		a.l.Warn().Msg("no http funcs provided, only serving health and metrics")
+	}
+
+	// Start OTEL
+	// Registers a NO-OP provider if not enabled
+	a.initOTEL()
+
+	// With OTEL ready, create an init span to track startup
+	ctx, initSpan := a.tracer.Start(a.AppContext, "init")
+	defer initSpan.End()
+
+	// Prepare GRPC first. The GRPC server may update its opts
+	// with a prepared GRPC-Gateway runtime.ServeMux if any of its services
+	// have added GRPC-Gateway handlers. If present, serve under api path
+	a.runGRPC(ctx)
+
+	// Second, prepare and run HTTP server, embedding grpc-gateway
+	// runtime.ServeMux if set by runGRPC()
+	a.runHTTP(ctx)
+
+	// Monitor app lifecycle
+	go a.monitor()
+
+	// Startup Complete
+	a.l.Info().
+		Str("name", a.cfg.Name).
+		Str("version", a.cfg.Version).
+		Str("logLevel", a.cfg.Logging.Level).
+		Msg("app initialized")
+	initSpan.SetStatus(codes.Ok, "")
 }
--- a/pkg/app/run_grpc.go
+++ b/pkg/app/run_grpc.go
@ -0,0 +1,47 @@
+package app
+
+import (
+	"context"
+
+	"github.com/rs/zerolog"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
+
+	optsgrpc "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
+	optshttp "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
+)
+
+func (a *App) runGRPC(ctx context.Context) {
+	if a.GRPC == nil {
+		a.GRPC = &optsgrpc.AppGRPC{
+			GRPCDone: make(chan error),
+		}
+	}
+	if !a.cfg.GRPCEnabled() {
+		zerolog.Ctx(ctx).Info().Msg("skipping disabled GRPC server")
+		return
+	}
+
+	span := trace.SpanFromContext(ctx)
+	if err := a.initGRPC(ctx); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+	}
+	span.AddEvent("grpc server started")
+	span.SetAttributes(attribute.Int("grpc.services", len(a.GRPC.Services)))
+
+	if a.GRPC.GetGatewayMux() != nil {
+		if a.HTTP.Handlers == nil {
+			a.HTTP.Handlers = make([]optshttp.HTTPHandler, 0, 1)
+		}
+
+		a.HTTP.Handlers = append(a.HTTP.Handlers, optshttp.HTTPHandler{
+			Prefix:      a.cfg.GRPC.GRPCGatewayPath,
+			StripPrefix: true,
+			Handler:     a.GRPC.GetGatewayMux(),
+		})
+
+		span.AddEvent("GRPC Gateway Mux Registered")
+	}
+}
--- a/pkg/app/run_http.go
+++ b/pkg/app/run_http.go
@ -0,0 +1,33 @@
+package app
+
+import (
+	"context"
+
+	"github.com/rs/zerolog"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
+
+	optshttp "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
+)
+
+func (a *App) runHTTP(ctx context.Context) {
+	if a.HTTP == nil {
+		a.HTTP = &optshttp.AppHTTP{
+			HTTPDone: make(chan any),
+		}
+	}
+
+	if !a.cfg.HTTPEnabled() {
+		zerolog.Ctx(ctx).Info().Msg("skipping disabled HTTP Server")
+		return
+	}
+
+	span := trace.SpanFromContext(ctx)
+	if err := a.initHTTP(ctx); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+	}
+	span.AddEvent("http server started")
+	span.SetAttributes(attribute.Int("http.handlers", len(a.HTTP.Funcs)))
+}
--- a/pkg/app/schema.go
+++ b/pkg/app/schema.go
@ -0,0 +1,40 @@
+package app
+
+import (
+	"encoding/json"
+
+	js "github.com/swaggest/jsonschema-go"
+)
+
+// Generates json schema for app's config.AppConfig
+func (app *App) Schema() ([]byte, error) {
+	r := js.Reflector{}
+
+	s, err := r.Reflect(*app.cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return json.MarshalIndent(s, "", "  ")
+}
+
+// Generates json schema for custom config
+// which embeds *config.AppConfig into it
+// Panics if no *config.AppConfig is embedded into custom
+// config type
+//
+// See swaggest/jsonschema-go for struct tag docs
+func CustomSchema[T any](target T) ([]byte, error) {
+	if err := HasAppConfig(target); err != nil {
+		panic(err.Error())
+	}
+
+	r := js.Reflector{}
+
+	s, err := r.Reflect(target)
+	if err != nil {
+		return nil, err
+	}
+
+	return json.MarshalIndent(s, "", "  ")
+}
--- a/pkg/app/setup_custom.go
+++ b/pkg/app/setup_custom.go
@ -19,7 +19,7 @@ import (
 // are up to the caller.
 func MustLoadConfigInto[T any](ctx context.Context, into T) (context.Context, T) {
 	// Step 1: Check our custom type for required *config.AppConfig
-	if err := hasAppConfig(into); err != nil {
+	if err := HasAppConfig(into); err != nil {
 		panic(err)
 	}

@ -66,7 +66,7 @@ func setAppConfig[T any](target T, appConfig *config.AppConfig) error {
 	}

 	// Replace *config.AppConfig
-	for i := 0; i < v.NumField(); i++ {
+	for i := range v.NumField() {
 		field := v.Field(i)
 		if field.Type() == reflect.TypeOf((*config.AppConfig)(nil)) {
 			if !field.CanSet() {
@ -80,7 +80,7 @@ func setAppConfig[T any](target T, appConfig *config.AppConfig) error {
 	return errors.New("no *config.AppConfig field found in target struct")
 }

-func hasAppConfig[T any](target T) error {
+func HasAppConfig[T any](target T) error {
 	v := reflect.ValueOf(target)
 	if v.Kind() != reflect.Ptr || v.IsNil() {
 		return errors.New("target must be a non-nil pointer to a struct")
@ -92,7 +92,7 @@ func hasAppConfig[T any](target T) error {
 	}

 	hasAppConfig := false
-	for i := 0; i < v.NumField(); i++ {
+	for i := range v.NumField() {
 		field := v.Type().Field(i)
 		if field.Type == reflect.TypeOf((*config.AppConfig)(nil)) {
 			hasAppConfig = true
--- a/pkg/config/config_test.go
+++ b/pkg/config/config_test.go
@ -22,12 +22,20 @@ var testDefaultConfig = &AppConfig{
 		TimeFormat: TimeFormatLong,
 	},
 	HTTP: &HTTPConfig{
+		Enabled:      true,
 		Listen:       "127.0.0.1:8080",
 		LogRequests:  false,
 		ReadTimeout:  "10s",
 		WriteTimeout: "10s",
 		IdleTimeout:  "1m",
 	},
+	GRPC: &GRPCConfig{
+		Enabled:               false,
+		Listen:                "127.0.0.1:8081",
+		LogRequests:           false,
+		EnableReflection:      true,
+		EnableInstrumentation: true,
+	},
 	OTEL: &OTELConfig{
 		Enabled:            true,
 		PrometheusEnabled:  true,
--- a/pkg/config/types.go
+++ b/pkg/config/types.go
@ -1,96 +1,45 @@
 package config

-import "time"
-
 // Default Settings
 var DefaultConfig = &AppConfig{
 	Environment: "development",
 	Version:     getVersion(),
-	Logging: &LogConfig{
-		Enabled:    true,
-		Level:      "info",
-		Format:     LogFormatJSON,
-		Output:     "stderr",
-		TimeFormat: TimeFormatLong,
-	},
-	HTTP: &HTTPConfig{
-		Listen:       "127.0.0.1:8080",
-		LogRequests:  false,
-		ReadTimeout:  "10s",
-		WriteTimeout: "10s",
-		IdleTimeout:  "1m",
-	},
-	OTEL: &OTELConfig{
-		Enabled:            true,
-		PrometheusEnabled:  true,
-		PrometheusPath:     "/metrics",
-		StdoutEnabled:      false,
-		MetricIntervalSecs: 30,
-	},
+	Logging:     defaultLoggingConfig,
+	HTTP:        defaultHTTPConfig,
+	OTEL:        defaultOTELConfig,
+	GRPC:        defaultGRPCConfig,
 }

 type AppConfig struct {
-	Name        string `yaml:"name,omitempty" env:"APP_NAME"`
-	Environment string `yaml:"environment,omitempty" env:"APP_ENVIRONMENT"`
+	Name        string `yaml:"name,omitempty" env:"APP_NAME" json:"name,omitempty"`
+	Environment string `yaml:"environment,omitempty" env:"APP_ENVIRONMENT" json:"environment,omitempty"`
 	// This should either be set by ldflags, such as with
 	// go build -ldflags "-X gitea.libretechconsulting.com/rmcguire/go-app/pkg/config.Version=$(VERSION)"
 	// or allow this to use build meta. Will default to (devel)
-	Version string      `yaml:"version,omitempty" env:"APP_VERSION"`
-	Logging *LogConfig  `yaml:"logging,omitempty"`
-	HTTP    *HTTPConfig `yaml:"http,omitempty"`
-	OTEL    *OTELConfig `yaml:"otel,omitempty"`
+	Version string      `yaml:"version,omitempty" env:"APP_VERSION" json:"version,omitempty"`
+	Logging *LogConfig  `yaml:"logging,omitempty" json:"logging,omitempty"`
+	HTTP    *HTTPConfig `yaml:"http,omitempty" json:"http,omitempty"`
+	OTEL    *OTELConfig `yaml:"otel,omitempty" json:"otel,omitempty"`
+	GRPC    *GRPCConfig `yaml:"grpc,omitempty" json:"grpc,omitempty"`
 }

-// Logging Configuration
-type LogConfig struct {
-	Enabled    bool       `yaml:"enabled,omitempty" env:"APP_LOG_ENABLED"`
-	Level      string     `yaml:"level,omitempty" env:"APP_LOG_LEVEL"`
-	Format     LogFormat  `yaml:"format,omitempty" env:"APP_LOG_FORMAT"`
-	Output     LogOutput  `yaml:"output,omitempty" env:"APP_LOG_OUTPUT"`
-	TimeFormat TimeFormat `yaml:"timeFormat,omitempty" env:"APP_LOG_TIME_FORMAT"`
+func (ac *AppConfig) HTTPEnabled() bool {
+	if ac.HTTP != nil && ac.HTTP.Enabled {
+		return true
+	}
+	return false
 }

-type LogFormat string
-
-const (
-	LogFormatConsole LogFormat = "console"
-	LogFormatJSON    LogFormat = "json"
-)
-
-type TimeFormat string
-
-const (
-	TimeFormatShort   TimeFormat = "short"
-	TimeFormatLong    TimeFormat = "long"
-	TimeFormatUnix    TimeFormat = "unix"
-	TimeFormatRFC3339 TimeFormat = "rfc3339"
-	TimeFormatOff     TimeFormat = "off"
-)
-
-type LogOutput string
-
-const (
-	LogOutputStdout LogOutput = "stdout"
-	LogOutputStderr LogOutput = "stderr"
-)
-
-// HTTP Configuration
-type HTTPConfig struct {
-	Listen       string `yaml:"listen,omitempty" env:"APP_HTTP_LISTEN"`
-	LogRequests  bool   `yaml:"logRequests" env:"APP_HTTP_LOG_REQUESTS"`
-	ReadTimeout  string `yaml:"readTimeout" env:"APP_HTTP_READ_TIMEOUT"`   // Go duration (e.g. 10s)
-	WriteTimeout string `yaml:"writeTimeout" env:"APP_HTTP_WRITE_TIMEOUT"` // Go duration (e.g. 10s)
-	IdleTimeout  string `yaml:"idleTimeout" env:"APP_HTTP_IDLE_TIMEOUT"`   // Go duration (e.g. 10s)
-	rT           *time.Duration
-	wT           *time.Duration
-	iT           *time.Duration
+func (ac *AppConfig) GRPCEnabled() bool {
+	if ac.GRPC != nil && ac.GRPC.Enabled {
+		return true
+	}
+	return false
 }

-// OTEL Configuration
-type OTELConfig struct {
-	Enabled            bool   `yaml:"enabled,omitempty" env:"APP_OTEL_ENABLED"`
-	PrometheusEnabled  bool   `yaml:"prometheusEnabled,omitempty" env:"APP_OTEL_PROMETHEUS_ENABLED"`
-	PrometheusPath     string `yaml:"prometheusPath,omitempty" env:"APP_OTEL_PROMETHEUS_PATH"`
-	StdoutEnabled      bool   `yaml:"stdoutEnabled,omitempty" env:"APP_OTEL_STDOUT_ENABLED"`
-	MetricIntervalSecs int    `yaml:"metricIntervalSecs,omitempty" env:"APP_OTEL_METRIC_INTERVAL_SECS"`
+func (ac *AppConfig) OTELEnabled() bool {
+	if ac.OTEL != nil && ac.OTEL.Enabled {
+		return true
+	}
+	return false
 }
--- a/pkg/config/types_grpc.go
+++ b/pkg/config/types_grpc.go
@ -0,0 +1,20 @@
+package config
+
+var defaultGRPCConfig = &GRPCConfig{
+	Enabled: false,
+	Listen:  "127.0.0.1:8081",
+
+	LogRequests:           false,
+	EnableReflection:      true,
+	EnableInstrumentation: true,
+}
+
+type GRPCConfig struct {
+	Enabled               bool   `yaml:"enabled" env:"APP_GRPC_ENABLED" json:"enabled,omitempty"`
+	Listen                string `yaml:"listen" env:"APP_GRPC_LISTEN" json:"listen,omitempty"`
+	LogRequests           bool   `yaml:"logRequests" env:"APP_GRPC_LOG_REQUESTS" json:"logRequests,omitempty"`
+	EnableReflection      bool   `yaml:"enableReflection" env:"APP_GRPC_ENABLE_REFLECTION" json:"enableReflection,omitempty"`
+	EnableInstrumentation bool   `yaml:"enableInstrumentation" env:"APP_GRPC_ENABLE_INSTRUMENTATION" json:"enableInstrumentation,omitempty"` // requires OTEL
+	EnableGRPCGateway     bool   `yaml:"enableGRPCGateway" json:"enableGRPCGateway,omitempty" env:"APP_GRPC_ENABLE_GATEWAY" default:"true"`
+	GRPCGatewayPath       string `yaml:"grpcGatewayPath" json:"grpcGatewayPath,omitempty" env:"APP_GRPC_GATEWAY_PATH" default:"/grpc-api"`
+}
--- a/pkg/config/types_http.go
+++ b/pkg/config/types_http.go
@ -0,0 +1,26 @@
+package config
+
+import "time"
+
+var defaultHTTPConfig = &HTTPConfig{
+	Enabled: true,
+	Listen:  "127.0.0.1:8080",
+
+	LogRequests:  false,
+	ReadTimeout:  "10s",
+	WriteTimeout: "10s",
+	IdleTimeout:  "1m",
+}
+
+// HTTP Configuration
+type HTTPConfig struct {
+	Enabled      bool   `yaml:"enabled" env:"APP_HTTP_ENABLED" json:"enabled,omitempty"`
+	Listen       string `yaml:"listen,omitempty" env:"APP_HTTP_LISTEN" json:"listen,omitempty"`
+	LogRequests  bool   `yaml:"logRequests" env:"APP_HTTP_LOG_REQUESTS" json:"logRequests,omitempty"`
+	ReadTimeout  string `yaml:"readTimeout" env:"APP_HTTP_READ_TIMEOUT" json:"readTimeout,omitempty"`    // Go duration (e.g. 10s)
+	WriteTimeout string `yaml:"writeTimeout" env:"APP_HTTP_WRITE_TIMEOUT" json:"writeTimeout,omitempty"` // Go duration (e.g. 10s)
+	IdleTimeout  string `yaml:"idleTimeout" env:"APP_HTTP_IDLE_TIMEOUT" json:"idleTimeout,omitempty"`    // Go duration (e.g. 10s)
+	rT           *time.Duration
+	wT           *time.Duration
+	iT           *time.Duration
+}
--- a/pkg/config/types_logging.go
+++ b/pkg/config/types_logging.go
@ -0,0 +1,42 @@
+package config
+
+var defaultLoggingConfig = &LogConfig{
+	Enabled:    true,
+	Level:      "info",
+	Format:     LogFormatJSON,
+	Output:     "stderr",
+	TimeFormat: TimeFormatLong,
+}
+
+// Logging Configuration
+type LogConfig struct {
+	Enabled    bool       `yaml:"enabled,omitempty" env:"APP_LOG_ENABLED" json:"enabled,omitempty"`
+	Level      string     `yaml:"level,omitempty" env:"APP_LOG_LEVEL" json:"level,omitempty"`
+	Format     LogFormat  `yaml:"format,omitempty" env:"APP_LOG_FORMAT" json:"format,omitempty"`
+	Output     LogOutput  `yaml:"output,omitempty" env:"APP_LOG_OUTPUT" json:"output,omitempty"`
+	TimeFormat TimeFormat `yaml:"timeFormat,omitempty" env:"APP_LOG_TIME_FORMAT" json:"timeFormat,omitempty"`
+}
+
+type LogFormat string
+
+const (
+	LogFormatConsole LogFormat = "console"
+	LogFormatJSON    LogFormat = "json"
+)
+
+type TimeFormat string
+
+const (
+	TimeFormatShort   TimeFormat = "short"
+	TimeFormatLong    TimeFormat = "long"
+	TimeFormatUnix    TimeFormat = "unix"
+	TimeFormatRFC3339 TimeFormat = "rfc3339"
+	TimeFormatOff     TimeFormat = "off"
+)
+
+type LogOutput string
+
+const (
+	LogOutputStdout LogOutput = "stdout"
+	LogOutputStderr LogOutput = "stderr"
+)
--- a/pkg/config/types_otel.go
+++ b/pkg/config/types_otel.go
@ -0,0 +1,18 @@
+package config
+
+var defaultOTELConfig = &OTELConfig{
+	Enabled:            true,
+	PrometheusEnabled:  true,
+	PrometheusPath:     "/metrics",
+	StdoutEnabled:      false,
+	MetricIntervalSecs: 30,
+}
+
+// OTEL Configuration
+type OTELConfig struct {
+	Enabled            bool   `yaml:"enabled,omitempty" env:"APP_OTEL_ENABLED" json:"enabled,omitempty"`
+	PrometheusEnabled  bool   `yaml:"prometheusEnabled,omitempty" env:"APP_OTEL_PROMETHEUS_ENABLED" json:"prometheusEnabled,omitempty"`
+	PrometheusPath     string `yaml:"prometheusPath,omitempty" env:"APP_OTEL_PROMETHEUS_PATH" json:"prometheusPath,omitempty"`
+	StdoutEnabled      bool   `yaml:"stdoutEnabled,omitempty" env:"APP_OTEL_STDOUT_ENABLED" json:"stdoutEnabled,omitempty"`
+	MetricIntervalSecs int    `yaml:"metricIntervalSecs,omitempty" env:"APP_OTEL_METRIC_INTERVAL_SECS" json:"metricIntervalSecs,omitempty"`
+}
--- a/pkg/logging/logging.go
+++ b/pkg/logging/logging.go
@ -38,7 +38,7 @@ func configureLogger(cfg *config.LogConfig) (*zerolog.Logger, error) {
 			TimeFormat: zerolog.TimeFieldFormat,
 		}
 		if cfg.TimeFormat == config.TimeFormatOff {
-			consoleWriter.FormatTimestamp = func(_ interface{}) string {
+			consoleWriter.FormatTimestamp = func(_ any) string {
 				return ""
 			}
 		}
--- a/pkg/otel/otel.go
+++ b/pkg/otel/otel.go
@ -22,7 +22,7 @@ import (
 	"go.opentelemetry.io/otel/sdk/metric"
 	"go.opentelemetry.io/otel/sdk/resource"
 	traceSDK "go.opentelemetry.io/otel/sdk/trace"
-	semconv "go.opentelemetry.io/otel/semconv/v1.24.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.27.0"
 	trace "go.opentelemetry.io/otel/trace"
 	"go.opentelemetry.io/otel/trace/noop"
 )
@ -44,7 +44,7 @@ func Init(ctx context.Context) (context.Context, func(context.Context) error) {
 	cfg := config.MustFromCtx(ctx)

 	// Nothing to do here if not enabled
-	if !cfg.OTEL.Enabled {
+	if !cfg.OTELEnabled() {
 		opentelemetry.SetMeterProvider(noopMetric.NewMeterProvider())
 		opentelemetry.SetTracerProvider(noop.NewTracerProvider())
 		// Won't function with noop providers
@ -170,6 +170,7 @@ func newResource(ctx context.Context) *resource.Resource {
 	attributes := []attribute.KeyValue{
 		semconv.ServiceName(cfg.Name),
 		semconv.ServiceVersion(cfg.Version),
+		semconv.DeploymentEnvironmentName(cfg.Environment),
 		semconv.K8SPodName(os.Getenv("HOSTNAME")),
 	}

@ -181,9 +182,7 @@ func newResource(ctx context.Context) *resource.Resource {
 // Conditionally provides an OTLP metrics exporter
 func (s *settings) newMeterProvider(ctx context.Context) (*metric.MeterProvider, error) {
 	// OTEL Prometheus Exporter
-	exporter, err := prometheus.New(
-		prometheus.WithResourceAsConstantLabels(attribute.NewDenyKeysFilter()),
-	)
+	exporter, err := prometheus.New()
 	if err != nil {
 		return nil, err
 	}
@ -202,7 +201,7 @@ func (s *settings) newMeterProvider(ctx context.Context) (*metric.MeterProvider,
 	host, set := os.LookupEnv("OTEL_EXPORTER_OTLP_ENDPOINT")
 	var otlpExporter *otlpmetricgrpc.Exporter
 	if set && host != "" {
-		if exp, err := otlpmetricgrpc.New(ctx, otlpmetricgrpc.WithInsecure()); err != nil {
+		if exp, err := otlpmetricgrpc.New(ctx); err != nil {
 			return nil, fmt.Errorf("otlpmetricgrpc.New: %w", err)
 		} else {
 			otlpExporter = exp
--- a/pkg/srv/grpc/gateway.go
+++ b/pkg/srv/grpc/gateway.go
@ -0,0 +1,65 @@
+package grpc
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
+	"google.golang.org/grpc"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
+)
+
+func (a *appGRPCServer) registerServiceGatewayHandlers(ctx context.Context, service *opts.GRPCService) {
+	if len(service.GwRegistrationFuncs) < 1 {
+		return
+	} else if a.gatewayMux == nil {
+		a.gatewayMux = runtime.NewServeMux(a.opts.GRPCGatewayOpts...)
+	}
+
+	ctx, span := a.tracer.Start(ctx, "appgrpc.init.prepare.service.gwHandlers", trace.WithAttributes(
+		attribute.String("service", service.Name),
+		attribute.Int("gwHandlers", len(service.GwRegistrationFuncs)),
+	))
+	defer span.End()
+
+	clientConn := a.GetClientConn(ctx)
+
+	var errs error
+	for _, registerGW := range service.GwRegistrationFuncs {
+		errs = errors.Join(errs, registerGW(ctx, a.gatewayMux, clientConn))
+		a.logger.Debug().Any("fwo", a.gatewayMux.GetForwardResponseOptions()).
+			Msg("calling gateway registration func")
+	}
+
+	if errs != nil {
+		panic(errs)
+	}
+}
+
+func (a *appGRPCServer) GetClientConn(ctx context.Context) *grpc.ClientConn {
+	span := trace.SpanFromContext(ctx)
+
+	host, port, err := net.SplitHostPort(a.opts.Listen)
+	if err != nil {
+		panic(err)
+	}
+
+	if host == "" || host == "0.0.0.0" {
+		host = "localhost"
+	}
+
+	clientConn, err := grpc.NewClient(fmt.Sprintf("%s:%s", host, port), a.opts.GRPCDialOpts...)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+		panic(err)
+	}
+
+	return clientConn
+}
--- a/pkg/srv/grpc/grpc.go
+++ b/pkg/srv/grpc/grpc.go
@ -0,0 +1,99 @@
+package grpc
+
+import (
+	"context"
+	"strings"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/rs/zerolog"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+	"google.golang.org/grpc"
+
+	appotel "gitea.libretechconsulting.com/rmcguire/go-app/pkg/otel"
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
+)
+
+type appGRPCServer struct {
+	ctx          context.Context
+	tracer       trace.Tracer
+	meter        metric.Meter
+	opts         *opts.GRPCOpts
+	serverOpts   []grpc.ServerOption
+	logger       *zerolog.Logger
+	server       *grpc.Server
+	gatewayMux   *runtime.ServeMux
+	shutdownFunc func(context.Context) error
+	doneChan     chan error
+}
+
+// Returns a shutdown func, a channel indicating done / error,
+// and an up-front error if server fails to start
+func InitGRPCServer(ctx context.Context, opts *opts.GRPCOpts) (
+	func(context.Context) error, <-chan error, error,
+) {
+	appGRPC := &appGRPCServer{
+		ctx:        ctx,
+		tracer:     appotel.GetTracer(ctx, "grpc"),
+		meter:      appotel.GetMeter(ctx, "grpc"),
+		opts:       opts,
+		serverOpts: make([]grpc.ServerOption, 0),
+		logger:     zerolog.Ctx(ctx),
+		doneChan:   make(chan error),
+	}
+
+	ctx, span := appGRPC.tracer.Start(ctx, "appgrpc.init")
+	defer span.End()
+
+	// Prepare grpc.Server for use
+	if err := appGRPC.prepGRPCServer(ctx); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "failed to prepare GRPC Server")
+		return nil, nil, err
+	}
+
+	// Load span with server info
+	span.SetAttributes(appGRPC.getServerAttributes()...)
+
+	err := appGRPC.runGRPCServer(ctx)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "failed to start GRPC Server")
+		return nil, nil, err
+	}
+
+	appGRPC.logger.Debug().Msg("GRPC Server Started")
+
+	span.SetStatus(codes.Ok, "")
+	return appGRPC.shutdownFunc, appGRPC.doneChan, nil
+}
+
+// Convert grpc.ServiceInfo map to []attribute.KeyValue
+func (a *appGRPCServer) getServerAttributes() []attribute.KeyValue {
+	var attrs []attribute.KeyValue
+
+	for serviceName, info := range a.server.GetServiceInfo() {
+		// Add the service name
+		attrs = append(attrs, attribute.String("grpc.service", serviceName))
+
+		// Convert methods into a comma-separated string
+		var methods []string
+		for _, method := range info.Methods {
+			methods = append(methods, method.Name)
+		}
+
+		// Add methods if present
+		if len(methods) > 0 {
+			attrs = append(attrs, attribute.String("grpc.service.methods", strings.Join(methods, ",")))
+		}
+
+		// If metadata is a string, store it
+		if metadata, ok := info.Metadata.(string); ok && metadata != "" {
+			attrs = append(attrs, attribute.String("grpc.service.metadata", metadata))
+		}
+	}
+
+	return attrs
+}
--- a/pkg/srv/grpc/logger.go
+++ b/pkg/srv/grpc/logger.go
@ -0,0 +1,51 @@
+package grpc
+
+import (
+	"context"
+
+	grpclogging "github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/logging"
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+)
+
+// A grpc logging middleware compatible logger
+// implementation using a zerolog logger, either from
+// the global logger or a context logger
+type GRPCLogger struct {
+	logger zerolog.Logger
+}
+
+// Returns a grpcLogger using the global zerolog Logger
+func NewGRPCLogger() *GRPCLogger {
+	return &GRPCLogger{logger: log.Logger}
+}
+
+// Returns a grpcLogger using the zerolog logger in the provided context
+func NewGRPCContextLogger(ctx context.Context) *GRPCLogger {
+	logger := log.Ctx(ctx)
+	return &GRPCLogger{logger: *logger}
+}
+
+// Log logs the fields for given log level. We can assume users (middleware library) will put fields in pairs and
+// those will be unique.
+func (l *GRPCLogger) Log(ctx context.Context, level grpclogging.Level, msg string, fields ...any) {
+	var event *zerolog.Event
+
+	switch level {
+	case grpclogging.LevelDebug:
+		event = l.logger.Debug()
+	case grpclogging.LevelInfo:
+		event = l.logger.Info()
+	case grpclogging.LevelWarn:
+		event = l.logger.Warn()
+	case grpclogging.LevelError:
+		event = l.logger.Error()
+	default:
+		event = l.logger.Warn().
+			Int("unknowngrpcloglevel", int(level))
+	}
+
+	event.Ctx(ctx)
+	event.Fields(fields)
+	event.Msg(msg)
+}
--- a/pkg/srv/grpc/opts/config.go
+++ b/pkg/srv/grpc/opts/config.go
@ -0,0 +1,43 @@
+package opts
+
+import (
+	"context"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"google.golang.org/grpc"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
+)
+
+type GRPCOpts struct {
+	*config.GRPCConfig // Settings configurable by env or yaml
+	*AppGRPC           // Settings provided in code
+}
+
+type AppGRPC struct {
+	Services           []*GRPCService
+	UnaryInterceptors  []grpc.UnaryServerInterceptor
+	StreamInterceptors []grpc.StreamServerInterceptor
+	GRPCOpts           []grpc.ServerOption
+	GRPCDialOpts       []grpc.DialOption        // Map ServerOptions to DialOpts for GRPC Gateway support
+	GRPCGatewayOpts    []runtime.ServeMuxOption // Configure grpc-gateway ServeMux
+	GRPCDone           <-chan error
+	gatewayMux         *runtime.ServeMux
+}
+
+type GRPCService struct {
+	Name                string               // Descriptive name of service
+	Type                *grpc.ServiceDesc    // Type (from protoc generated code)
+	Service             any                  // Implementation of GRPCService.Type (ptr)
+	GwRegistrationFuncs []GwRegistrationFunc // Gateway regustration handler funcs
+}
+
+type GwRegistrationFunc func(context.Context, *runtime.ServeMux, *grpc.ClientConn) error
+
+func (a *AppGRPC) SetGatewayMux(mux *runtime.ServeMux) {
+	a.gatewayMux = mux
+}
+
+func (a *AppGRPC) GetGatewayMux() *runtime.ServeMux {
+	return a.gatewayMux
+}
--- a/pkg/srv/grpc/prepare.go
+++ b/pkg/srv/grpc/prepare.go
@ -0,0 +1,101 @@
+package grpc
+
+import (
+	"context"
+	"errors"
+
+	grpclogging "github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/logging"
+	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/reflection"
+)
+
+func (a *appGRPCServer) prepGRPCServer(spanCtx context.Context) error {
+	ctx, span := a.tracer.Start(spanCtx, "appgrpc.init.prepare")
+	defer span.End()
+
+	if len(a.opts.Services) < 1 {
+		err := errors.New("refusing to create grpc server with no services")
+		a.logger.Err(err).Send()
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+		return err
+	}
+
+	// Prepare GRPC Server Opts
+	a.prepareOTEL(ctx)
+	a.prepareLogging(ctx)
+
+	// Chain interceptors for unary RPCs
+	a.serverOpts = append(a.serverOpts,
+		grpc.ChainUnaryInterceptor(a.opts.UnaryInterceptors...))
+	span.SetAttributes(attribute.Int("grpc.server.unaryinterceptors",
+		len(a.opts.UnaryInterceptors)))
+
+	// Chain interceptors for streaming RPCs
+	a.serverOpts = append(a.serverOpts,
+		grpc.ChainStreamInterceptor(a.opts.StreamInterceptors...))
+	span.SetAttributes(attribute.Int("grpc.server.streaminterceptors",
+		len(a.opts.StreamInterceptors)))
+
+	// Prepare GRPC Server
+	a.server = grpc.NewServer(a.serverOpts...)
+	span.SetAttributes(attribute.Int("grpc.server.serveropts", len(a.serverOpts)))
+
+	// Load given services into server registry
+	a.registerGRPCServices(ctx)
+	span.SetAttributes(attribute.Int("grpc.server.grpcservices", len(a.opts.Services)))
+
+	// If a grpc-gateway mux was created, store it in opts
+	// so it can be used by AppHTTP
+	if a.gatewayMux != nil {
+		a.opts.SetGatewayMux(a.gatewayMux)
+		span.SetAttributes(attribute.Bool("grpc.server.grpcgateway.enabled", true))
+	} else {
+		span.SetAttributes(attribute.Bool("grpc.server.grpcgateway.enabled", false))
+	}
+
+	// Enable reflection if desired
+	if a.opts.EnableReflection {
+		reflection.Register(a.server)
+	}
+	span.SetAttributes(attribute.Bool("grpc.server.reflection", a.opts.EnableReflection))
+
+	span.SetStatus(codes.Ok, "")
+	return nil
+}
+
+func (a *appGRPCServer) prepareOTEL(spanCtx context.Context) {
+	_, span := a.tracer.Start(spanCtx, "appgrpc.init.prepare.otel", trace.WithAttributes(
+		attribute.Bool("grpc.server.instrumented", a.opts.EnableInstrumentation)))
+	defer span.End()
+
+	if a.opts.EnableInstrumentation {
+		a.serverOpts = append(a.serverOpts,
+			grpc.StatsHandler(
+				otelgrpc.NewServerHandler(
+					otelgrpc.WithTracerProvider(otel.GetTracerProvider()),
+					otelgrpc.WithMeterProvider(otel.GetMeterProvider()),
+				)))
+		span.SetStatus(codes.Ok, "")
+	}
+}
+
+func (a *appGRPCServer) prepareLogging(spanCtx context.Context) {
+	_, span := a.tracer.Start(spanCtx, "appgrpc.init.prepare.logging", trace.WithAttributes(
+		attribute.Bool("grpc.server.instrumentated", a.opts.LogRequests),
+		attribute.String("grpc.server.loglevel", a.logger.GetLevel().String())))
+	defer span.End()
+
+	if a.opts.LogRequests {
+		a.opts.UnaryInterceptors = append(a.opts.UnaryInterceptors,
+			grpclogging.UnaryServerInterceptor(NewGRPCContextLogger(a.ctx)))
+		a.opts.StreamInterceptors = append(a.opts.StreamInterceptors,
+			grpclogging.StreamServerInterceptor(NewGRPCContextLogger(a.ctx)))
+		span.SetStatus(codes.Ok, "")
+	}
+}
--- a/pkg/srv/grpc/run.go
+++ b/pkg/srv/grpc/run.go
@ -0,0 +1,66 @@
+package grpc
+
+import (
+	"context"
+	"net"
+
+	"go.opentelemetry.io/otel/codes"
+	semconv "go.opentelemetry.io/otel/semconv/v1.27.0"
+)
+
+func (a *appGRPCServer) runGRPCServer(spanCtx context.Context) error {
+	_, span := a.tracer.Start(spanCtx, "appgrpc.init.start")
+	defer span.End()
+
+	span.SetAttributes(
+		semconv.RPCSystemGRPC,
+		semconv.NetworkProtocolName("grpc"),
+		semconv.ServerAddress(a.opts.Listen),
+	)
+
+	a.shutdownFunc = a.getShutdownFunc()
+
+	l, err := net.Listen("tcp", a.opts.Listen)
+	if err != nil {
+		a.logger.Err(err).Send()
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "failed to acquire net listener")
+		return err
+	}
+
+	span.AddEvent("network listener acquired")
+
+	// Launch GRPC Server
+	go func() {
+		if err := a.server.Serve(l); err != nil {
+			a.logger.Err(err).Send()
+			a.doneChan <- err
+		}
+	}()
+
+	span.AddEvent("grpc server goroutine launched")
+	span.SetStatus(codes.Ok, "")
+
+	return nil
+}
+
+func (a *appGRPCServer) getShutdownFunc() func(context.Context) error {
+	return func(ctx context.Context) error {
+		stoppedChan := make(chan any)
+
+		go func() {
+			a.server.GracefulStop()
+			stoppedChan <- nil
+		}()
+
+		select {
+		case <-stoppedChan:
+			a.logger.Warn().Msg("GRPC server shut down gracefully")
+			return nil
+		case <-ctx.Done():
+			a.logger.Warn().Msg("GRPC server shut down hard")
+			a.server.Stop()
+			return ctx.Err()
+		}
+	}
+}
--- a/pkg/srv/grpc/services.go
+++ b/pkg/srv/grpc/services.go
@ -0,0 +1,35 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
+)
+
+func (a *appGRPCServer) registerGRPCServices(ctx context.Context) {
+	ctx, span := a.tracer.Start(ctx, "appgrpc.init.prepare.services", trace.WithAttributes(
+		attribute.Int("numServices", len(a.opts.Services)),
+	))
+	defer span.End()
+
+	for _, service := range a.opts.Services {
+		a.registerGRPCService(ctx, service)
+		if a.opts.EnableGRPCGateway {
+			a.registerServiceGatewayHandlers(ctx, service)
+		}
+	}
+
+	span.SetStatus(codes.Ok, "")
+}
+
+func (a *appGRPCServer) registerGRPCService(ctx context.Context, service *opts.GRPCService) {
+	span := trace.SpanFromContext(ctx)
+	span.AddEvent(fmt.Sprintf("registered %s service", service.Name))
+
+	a.server.RegisterService(service.Type, service.Service)
+}
--- a/pkg/srv/http/http.go
+++ b/pkg/srv/http/http.go
@ -1,9 +1,13 @@
-package srv
+package http

 import (
 	"context"
+	"fmt"
+	"log"
 	"net"
 	"net/http"
+	"os"
+	"strings"
 	"time"

 	"github.com/prometheus/client_golang/prometheus/promhttp"
@ -14,6 +18,7 @@ import (

 	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
 	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/otel"
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
 )

 var (
@ -24,15 +29,10 @@ var (
 	defIdleTimeout  = 15 * time.Second
 )

-type HTTPFunc struct {
-	Path        string
-	HandlerFunc http.HandlerFunc
-}
-
-func prepHTTPServer(ctx context.Context, handleFuncs []HTTPFunc, hcFuncs ...HealthCheckFunc) *http.Server {
+func prepHTTPServer(opts *opts.AppHTTP) *http.Server {
 	var (
-		cfg = config.MustFromCtx(ctx)
-		l   = zerolog.Ctx(ctx)
+		cfg = config.MustFromCtx(opts.Ctx)
+		l   = zerolog.Ctx(opts.Ctx)
 		mux = &http.ServeMux{}
 	)

@ -43,11 +43,11 @@ func prepHTTPServer(ctx context.Context, handleFuncs []HTTPFunc, hcFuncs ...Heal
 		mux.Handle(pattern, handler) // Associate pattern with handler
 	}

-	healthChecks := handleHealthCheckFunc(ctx, hcFuncs...)
+	healthChecks := handleHealthCheckFunc(opts.Ctx, opts.HealthChecks...)
 	otelHandleFunc("/health", healthChecks)
 	otelHandleFunc("/", healthChecks)

-	for _, f := range handleFuncs {
+	for _, f := range opts.Funcs {
 		otelHandleFunc(f.Path, f.HandlerFunc)
 	}

@ -58,6 +58,22 @@ func prepHTTPServer(ctx context.Context, handleFuncs []HTTPFunc, hcFuncs ...Heal
 			Msg("mounted prometheus metrics endpoint")
 	}

+	// Inject extra handlers if given
+	// Used for grpc-gateway runtime.ServeMux handlers
+	for _, h := range opts.Handlers {
+		// prefix must end in / to route sub-paths
+		if !strings.HasSuffix(h.Prefix, "/") {
+			h.Prefix = h.Prefix + "/"
+		}
+
+		// if enabled, the path prefix is stripped before
+		// requests are sent to the handler
+		if h.StripPrefix {
+			h.Handler = http.StripPrefix(h.Prefix[:len(h.Prefix)-1], h.Handler)
+		}
+		mux.Handle(h.Prefix, h.Handler)
+	}
+
 	// Add OTEL, skip health-check spans
 	// NOTE: Add any other span exclusions here
 	handler := otelhttp.NewHandler(mux, "/",
@ -89,9 +105,19 @@ func prepHTTPServer(ctx context.Context, handleFuncs []HTTPFunc, hcFuncs ...Heal
 		idleTimeout = *iT
 	}

+	// Inject any supplied middleware
+	for i := len(opts.Middleware) - 1; i >= 0; i-- {
+		mw := opts.Middleware[i]
+		next := handler
+		handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			mw.ServeHTTP(w, r)
+			next.ServeHTTP(w, r)
+		})
+	}
+
 	// Inject logging middleware
 	if cfg.HTTP.LogRequests {
-		handler = loggingMiddleware(ctx, handler)
+		handler = loggingMiddleware(opts.Ctx, handler)
 	}

 	return &http.Server{
@ -100,50 +126,49 @@ func prepHTTPServer(ctx context.Context, handleFuncs []HTTPFunc, hcFuncs ...Heal
 		WriteTimeout: writeTimeout,
 		IdleTimeout:  idleTimeout,
 		Handler:      handler,
+		ErrorLog:     log.New(os.Stderr, fmt.Sprintf("Go-HTTP[%s]", cfg.Name), log.Flags()),
 		BaseContext: func(_ net.Listener) context.Context {
-			return ctx
+			return opts.Ctx
 		},
 	}
 }

-// Returns a shutdown func and a done channel if the
-// server aborts abnormally. Panics on error.
-func MustInitHTTPServer(ctx context.Context, funcs []HTTPFunc, hcFuncs ...HealthCheckFunc) (
-	func(context.Context) error, <-chan interface{},
-) {
-	shutdownFunc, doneChan, err := InitHTTPServer(ctx, funcs, hcFuncs...)
-	if err != nil {
-		panic(err)
-	}
-	return shutdownFunc, doneChan
-}
-
 // Returns a shutdown func and a done channel if the
 // server aborts abnormally. Returns error on failure to start
-func InitHTTPServer(ctx context.Context, funcs []HTTPFunc, hcFuncs ...HealthCheckFunc) (
-	func(context.Context) error, <-chan interface{}, error,
+func InitHTTPServer(opts *opts.AppHTTP) (
+	func(context.Context) error, <-chan any, error,
 ) {
-	l := zerolog.Ctx(ctx)
-	doneChan := make(chan interface{})
+	l := zerolog.Ctx(opts.Ctx)
+	doneChan := make(chan any)

 	var server *http.Server

-	httpMeter = otel.GetMeter(ctx, "http")
-	httpTracer = otel.GetTracer(ctx, "http")
+	httpMeter = otel.GetMeter(opts.Ctx, "http")
+	httpTracer = otel.GetTracer(opts.Ctx, "http")

-	server = prepHTTPServer(ctx, funcs, hcFuncs...)
+	server = prepHTTPServer(opts)

 	go func() {
-		l.Debug().Msg("HTTP Server Started")
-		err := server.ListenAndServe()
+		var err error
+
+		if opts.CustomListener != nil {
+			err = server.Serve(opts.CustomListener)
+		} else {
+			err = server.ListenAndServe()
+		}
+
 		if err != nil && err != http.ErrServerClosed {
 			l.Err(err).Msg("HTTP server error")
 		} else {
 			l.Info().Msg("HTTP server shut down")
 		}
+
+		// Notify app initiator
 		doneChan <- nil
 	}()

+	l.Debug().Msg("HTTP Server Started")
+
 	// Shut down http server with a deadline
 	return func(shutdownCtx context.Context) error {
 		l.Debug().Msg("stopping http server")
--- a/pkg/srv/http/http_health.go
+++ b/pkg/srv/http/http_health.go
@ -1,4 +1,4 @@
-package srv
+package http

 import (
 	"context"
@ -9,11 +9,11 @@ import (
 	"time"

 	"github.com/rs/zerolog"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
 )

-type HealthCheckFunc func(context.Context) error
-
-func handleHealthCheckFunc(ctx context.Context, hcFuncs ...HealthCheckFunc) func(w http.ResponseWriter, r *http.Request) {
+func handleHealthCheckFunc(ctx context.Context, hcFuncs ...opts.HealthCheckFunc) func(w http.ResponseWriter, r *http.Request) {
 	// Return http handle func
 	return func(w http.ResponseWriter, r *http.Request) {
 		var (
--- a/pkg/srv/http/http_log.go
+++ b/pkg/srv/http/http_log.go
@ -1,4 +1,4 @@
-package srv
+package http

 import (
 	"bytes"
--- a/pkg/srv/http/opts/http_config.go
+++ b/pkg/srv/http/opts/http_config.go
@ -0,0 +1,30 @@
+package opts
+
+import (
+	"context"
+	"net"
+	"net/http"
+)
+
+type AppHTTP struct {
+	Ctx            context.Context
+	Funcs          []HTTPFunc     // Handler funcs, will be wrapped with OTEL
+	Middleware     []http.Handler // Middleware (e.g. request logging)
+	Handlers       []HTTPHandler  // Raw Handler/Mux to add, optional prefix stripping
+	HealthChecks   []HealthCheckFunc
+	CustomListener net.Listener
+	HTTPDone       <-chan any
+}
+
+type HTTPFunc struct {
+	Path        string
+	HandlerFunc http.HandlerFunc
+}
+
+type HTTPHandler struct {
+	Prefix      string // path prefix under which to serve this handler/mux
+	StripPrefix bool   // strip path before sending to handler/mux
+	Handler     http.Handler
+}
+
+type HealthCheckFunc func(context.Context) error
Author	SHA1	Message	Date
Ryan McGuire	52752216fd	upgrade packages	2025-05-04 10:06:01 -04:00
Ryan McGuire	4f0c5fe665	fix broken startup on disabled servers	2025-03-30 11:27:41 -04:00
Ryan D McGuire	5c26accc34	update TODO	2025-03-26 12:58:32 -04:00
Ryan McGuire	f8279d9653	fix handler strip path	2025-03-26 08:30:51 -04:00
Ryan D McGuire	b44b6a331c	support runtime.ServeMux opts for grpc-gateway	2025-03-25 10:49:58 -04:00
Ryan D McGuire	adfedc9239	assert trailing slash for handler prefixes	2025-03-25 10:49:47 -04:00
Ryan D McGuire	89f016ed9d	update TODO	2025-03-24 16:46:45 -04:00
Ryan D McGuire	7f60a59d42	implement grpc gateway and addl handler support	2025-03-24 16:39:11 -04:00
Ryan D McGuire	262f6a4232	implement grpc gateway and addl handler support	2025-03-24 16:24:03 -04:00
Ryan D McGuire	4e014d5ea0	start implementing gw serve mux support	2025-03-24 12:43:53 -04:00
Ryan McGuire	3e319b24fd	support json schema	2025-03-22 14:02:39 -04:00
Ryan McGuire	f0a699029a	improve server startup	2025-03-07 17:19:42 -05:00
Ryan McGuire	e178956eef	improve grpc lifecycle	2025-03-07 17:04:46 -05:00
Ryan McGuire	c5da5f7887	improve grpc lifecycle	2025-03-07 16:45:50 -05:00
Ryan McGuire	d414754e14	add grpc support	2025-03-07 15:24:54 -05:00
Ryan McGuire	3b3f7f1f8b	add grpc support	2025-03-07 15:24:36 -05:00
Ryan McGuire	00c8e2e4fc	add grpc support	2025-03-07 15:19:05 -05:00
Ryan McGuire	2cf15a4837	add grpc support	2025-03-07 13:00:45 -05:00
Ryan McGuire	98fba4eac8	add grpc support	2025-03-07 11:44:50 -05:00
Ryan McGuire	5aa5dda111	add grpc support	2025-03-07 11:16:32 -05:00
Ryan McGuire	81676c5404	add weather grpc	2025-03-07 08:42:38 -05:00
Ryan McGuire	075902ecd8	add grpc support	2025-03-06 17:18:39 -05:00
Ryan McGuire	a83abba4ce	add grpc support	2025-03-06 17:17:59 -05:00
Ryan McGuire	e11c563c3a	add grpc support	2025-03-06 17:16:27 -05:00
Ryan McGuire	96f9213213	Disable insecure otlpgrpcmetric, upgrades	2025-02-15 14:41:34 -05:00
Ryan McGuire	ae00c64684	Add custom http listener support	2025-01-29 17:26:29 -05:00
Ryan McGuire	004c1b1ee6	Fix duplicate labels	2025-01-28 15:46:56 -05:00
Ryan McGuire	861214be5d	Upgrades, error logger	2025-01-28 15:07:07 -05:00
Ryan McGuire	896225effc	Add Middleware Support	2025-01-28 14:32:27 -05:00