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Merged
simpsonw merged 1 commit into from
Mar 25, 2026
Merged

feat: use autoexport to dynamically select OTEL protocol #13

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24 changes: 22 additions & 2 deletions go.mod
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,9 @@ go 1.25.5

require (
github.com/coreos/go-oidc/v3 v3.17.0
go.opentelemetry.io/contrib/exporters/autoexport v0.67.0
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.67.0
go.opentelemetry.io/otel v1.42.0
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0
go.opentelemetry.io/otel/metric v1.42.0
go.opentelemetry.io/otel/sdk v1.42.0
go.opentelemetry.io/otel/sdk/metric v1.42.0
Expand All @@ -24,6 +23,7 @@ require (
cloud.google.com/go/iam v1.5.3 // indirect
cloud.google.com/go/longrunning v0.8.0 // indirect
github.com/antlr4-go/antlr/v4 v4.13.1 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/cenkalti/backoff/v5 v5.0.3 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/felixge/httpsnoop v1.0.4 // indirect
Expand All @@ -35,10 +35,30 @@ require (
github.com/googleapis/enterprise-certificate-proxy v0.3.14 // indirect
github.com/googleapis/gax-go/v2 v2.19.0 // indirect
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/prometheus/client_golang v1.23.2 // indirect
github.com/prometheus/client_model v0.6.2 // indirect
github.com/prometheus/common v0.67.5 // indirect
github.com/prometheus/otlptranslator v1.0.0 // indirect
github.com/prometheus/procfs v0.20.1 // indirect
go.opentelemetry.io/auto/sdk v1.2.1 // indirect
go.opentelemetry.io/contrib/bridges/prometheus v0.67.0 // indirect
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.67.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/prometheus v0.64.0 // indirect
go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.18.0 // indirect
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.42.0 // indirect
go.opentelemetry.io/otel/log v0.18.0 // indirect
go.opentelemetry.io/otel/sdk/log v0.18.0 // indirect
go.opentelemetry.io/proto/otlp v1.9.0 // indirect
go.yaml.in/yaml/v2 v2.4.3 // indirect
golang.org/x/exp v0.0.0-20260312153236-7ab1446f8b90 // indirect
golang.org/x/net v0.52.0 // indirect
golang.org/x/oauth2 v0.36.0 // indirect
Expand Down
46 changes: 46 additions & 0 deletions go.sum
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,8 @@ cloud.google.com/go/longrunning v0.8.0 h1:LiKK77J3bx5gDLi4SMViHixjD2ohlkwBi+mKA7
cloud.google.com/go/longrunning v0.8.0/go.mod h1:UmErU2Onzi+fKDg2gR7dusz11Pe26aknR4kHmJJqIfk=
github.com/antlr4-go/antlr/v4 v4.13.1 h1:SqQKkuVZ+zWkMMNkjy5FZe5mr5WURWnlpmOuzYWrPrQ=
github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmOABFgjdkM7Nw=
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/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
Expand Down Expand Up @@ -58,36 +60,78 @@ github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 h1:HWRh5R2+9EifMyIHV7ZV+MIZqgz
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0/go.mod h1:JfhWUomR1baixubs02l85lZYYOm7LV6om4ceouMv45c=
github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
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/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 h1:GFCKgmp0tecUJ0sJuv4pzYCqS9+RGSn52M3FUwPs+uo=
github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10/go.mod h1:t/avpk3KcrXxUnYOhZhMXJlSEyie6gQbtLq5NM3loB8=
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 v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h0RJWRi/o0o=
github.com/prometheus/client_golang v1.23.2/go.mod h1:Tb1a6LWHB3/SPIzCoaDXI4I8UHKeFTEQ1YCr+0Gyqmg=
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 v0.67.5 h1:pIgK94WWlQt1WLwAC5j2ynLaBRDiinoAb86HZHTUGI4=
github.com/prometheus/common v0.67.5/go.mod h1:SjE/0MzDEEAyrdr5Gqc6G+sXI67maCxzaT3A2+HqjUw=
github.com/prometheus/otlptranslator v1.0.0 h1:s0LJW/iN9dkIH+EnhiD3BlkkP5QVIUVEoIwkU+A6qos=
github.com/prometheus/otlptranslator v1.0.0/go.mod h1:vRYWnXvI6aWGpsdY/mOT/cbeVRBlPWtBNDb7kGR3uKM=
github.com/prometheus/procfs v0.20.1 h1:XwbrGOIplXW/AU3YhIhLODXMJYyC1isLFfYCsTEycfc=
github.com/prometheus/procfs v0.20.1/go.mod h1:o9EMBZGRyvDrSPH1RqdxhojkuXstoe4UlK79eF5TGGo=
github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
go.opentelemetry.io/contrib/bridges/prometheus v0.67.0 h1:dkBzNEAIKADEaFnuESzcXvpd09vxvDZsOjx11gjUqLk=
go.opentelemetry.io/contrib/bridges/prometheus v0.67.0/go.mod h1:Z5RIwRkZgauOIfnG5IpidvLpERjhTninpP1dTG2jTl4=
go.opentelemetry.io/contrib/exporters/autoexport v0.67.0 h1:4fnRcNpc6YFtG3zsFw9achKn3XgmxPxuMuqIL5rE8e8=
go.opentelemetry.io/contrib/exporters/autoexport v0.67.0/go.mod h1:qTvIHMFKoxW7HXg02gm6/Wofhq5p3Ib/A/NNt1EoBSQ=
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.67.0 h1:yI1/OhfEPy7J9eoa6Sj051C7n5dvpj0QX8g4sRchg04=
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.67.0/go.mod h1:NoUCKYWK+3ecatC4HjkRktREheMeEtrXoQxrqYFeHSc=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.67.0 h1:OyrsyzuttWTSur2qN/Lm0m2a8yqyIjUVBZcxFPuXq2o=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.67.0/go.mod h1:C2NGBr+kAB4bk3xtMXfZ94gqFDtg/GkI7e9zqGh5Beg=
go.opentelemetry.io/otel v1.42.0 h1:lSQGzTgVR3+sgJDAU/7/ZMjN9Z+vUip7leaqBKy4sho=
go.opentelemetry.io/otel v1.42.0/go.mod h1:lJNsdRMxCUIWuMlVJWzecSMuNjE7dOYyWlqOXWkdqCc=
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0 h1:deI9UQMoGFgrg5iLPgzueqFPHevDl+28YKfSpPTI6rY=
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0/go.mod h1:PFx9NgpNUKXdf7J4Q3agRxMs3Y07QhTCVipKmLsMKnU=
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0 h1:icqq3Z34UrEFk2u+HMhTtRsvo7Ues+eiJVjaJt62njs=
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0/go.mod h1:W2m8P+d5Wn5kipj4/xmbt9uMqezEKfBjzVJadfABSBE=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 h1:MdKucPl/HbzckWWEisiNqMPhRrAOQX8r4jTuGr636gk=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0/go.mod h1:RolT8tWtfHcjajEH5wFIZ4Dgh5jpPdFXYV9pTAk/qjc=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 h1:H7O6RlGOMTizyl3R08Kn5pdM06bnH8oscSj7o11tmLA=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0/go.mod h1:mBFWu/WOVDkWWsR7Tx7h6EpQB8wsv7P0Yrh0Pb7othc=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 h1:THuZiwpQZuHPul65w4WcwEnkX2QIuMT+UFoOrygtoJw=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0/go.mod h1:J2pvYM5NGHofZ2/Ru6zw/TNWnEQp5crgyDeSrYpXkAw=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 h1:zWWrB1U6nqhS/k6zYB74CjRpuiitRtLLi68VcgmOEto=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0/go.mod h1:2qXPNBX1OVRC0IwOnfo1ljoid+RD0QK3443EaqVlsOU=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0 h1:uLXP+3mghfMf7XmV4PkGfFhFKuNWoCvvx5wP/wOXo0o=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0/go.mod h1:v0Tj04armyT59mnURNUJf7RCKcKzq+lgJs6QSjHjaTc=
go.opentelemetry.io/otel/exporters/prometheus v0.64.0 h1:g0LRDXMX/G1SEZtK8zl8Chm4K6GBwRkjPKE36LxiTYs=
go.opentelemetry.io/otel/exporters/prometheus v0.64.0/go.mod h1:UrgcjnarfdlBDP3GjDIJWe6HTprwSazNjwsI+Ru6hro=
go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.18.0 h1:KJVjPD3rcPb98rIs3HznyJlrfx9ge5oJvxxlGR+P/7s=
go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.18.0/go.mod h1:K3kRa2ckmHWQaTWQdPRHc7qGXASuVuoEQXzrvlA98Ws=
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.42.0 h1:lSZHgNHfbmQTPfuTmWVkEu8J8qXaQwuV30pjCcAUvP8=
go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.42.0/go.mod h1:so9ounLcuoRDu033MW/E0AD4hhUjVqswrMF5FoZlBcw=
go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.42.0 h1:s/1iRkCKDfhlh1JF26knRneorus8aOwVIDhvYx9WoDw=
go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.42.0/go.mod h1:UI3wi0FXg1Pofb8ZBiBLhtMzgoTm1TYkMvn71fAqDzs=
go.opentelemetry.io/otel/log v0.18.0 h1:XgeQIIBjZZrliksMEbcwMZefoOSMI1hdjiLEiiB0bAg=
go.opentelemetry.io/otel/log v0.18.0/go.mod h1:KEV1kad0NofR3ycsiDH4Yjcoj0+8206I6Ox2QYFSNgI=
go.opentelemetry.io/otel/metric v1.42.0 h1:2jXG+3oZLNXEPfNmnpxKDeZsFI5o4J+nz6xUlaFdF/4=
go.opentelemetry.io/otel/metric v1.42.0/go.mod h1:RlUN/7vTU7Ao/diDkEpQpnz3/92J9ko05BIwxYa2SSI=
go.opentelemetry.io/otel/sdk v1.42.0 h1:LyC8+jqk6UJwdrI/8VydAq/hvkFKNHZVIWuslJXYsDo=
go.opentelemetry.io/otel/sdk v1.42.0/go.mod h1:rGHCAxd9DAph0joO4W6OPwxjNTYWghRWmkHuGbayMts=
go.opentelemetry.io/otel/sdk/log v0.18.0 h1:n8OyZr7t7otkeTnPTbDNom6rW16TBYGtvyy2Gk6buQw=
go.opentelemetry.io/otel/sdk/log v0.18.0/go.mod h1:C0+wxkTwKpOCZLrlJ3pewPiiQwpzycPI/u6W0Z9fuYk=
go.opentelemetry.io/otel/sdk/log/logtest v0.18.0 h1:l3mYuPsuBx6UKE47BVcPrZoZ0q/KER57vbj2qkgDLXA=
go.opentelemetry.io/otel/sdk/log/logtest v0.18.0/go.mod h1:7cHtiVJpZebB3wybTa4NG+FUo5NPe3PROz1FqB0+qdw=
go.opentelemetry.io/otel/sdk/metric v1.42.0 h1:D/1QR46Clz6ajyZ3G8SgNlTJKBdGp84q9RKCAZ3YGuA=
go.opentelemetry.io/otel/sdk/metric v1.42.0/go.mod h1:Ua6AAlDKdZ7tdvaQKfSmnFTdHx37+J4ba8MwVCYM5hc=
go.opentelemetry.io/otel/trace v1.42.0 h1:OUCgIPt+mzOnaUTpOQcBiM/PLQ/Op7oq6g4LenLmOYY=
Expand All @@ -96,6 +140,8 @@ go.opentelemetry.io/proto/otlp v1.9.0 h1:l706jCMITVouPOqEnii2fIAuO3IVGBRPV5ICjce
go.opentelemetry.io/proto/otlp v1.9.0/go.mod h1:xE+Cx5E/eEHw+ISFkwPLwCZefwVjY+pqKg1qcK03+/4=
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
golang.org/x/crypto v0.49.0 h1:+Ng2ULVvLHnJ/ZFEq4KdcDd/cfjrrjjNSXNzxg0Y4U4=
Expand Down
18 changes: 8 additions & 10 deletions internal/observability/otel.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,9 @@ import (
"context"
"fmt"
"os"
"time"

"go.opentelemetry.io/contrib/exporters/autoexport"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
"go.opentelemetry.io/otel/propagation"
sdkmetric "go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/resource"
Expand All @@ -19,9 +17,9 @@ import (
// ShutdownFunc flushes and shuts down OTel providers.
type ShutdownFunc func(ctx context.Context) error

// Setup initializes OpenTelemetry tracing and metrics using OTLP HTTP exporters.
// Configuration is driven entirely by standard OTel environment variables
// (OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_RESOURCE_ATTRIBUTES, etc.).
// Setup initializes OpenTelemetry tracing and metrics.
// The exporter protocol (gRPC or HTTP) is selected automatically based on
// the OTEL_EXPORTER_OTLP_PROTOCOL environment variable via the autoexport package.
//
// If OTEL_EXPORTER_OTLP_ENDPOINT is not set, Setup is a no-op and returns a
// nil ShutdownFunc.
Expand All @@ -41,7 +39,7 @@ func Setup(ctx context.Context) (ShutdownFunc, error) {
return nil, fmt.Errorf("creating OTel resource: %w", err)
}

traceExp, err := otlptracehttp.New(ctx)
traceExp, err := autoexport.NewSpanExporter(ctx)
if err != nil {
return nil, fmt.Errorf("creating trace exporter: %w", err)
}
Expand All @@ -56,13 +54,13 @@ func Setup(ctx context.Context) (ShutdownFunc, error) {
propagation.Baggage{},
))

metricExp, err := otlpmetrichttp.New(ctx)
metricReader, err := autoexport.NewMetricReader(ctx)
if err != nil {
return nil, fmt.Errorf("creating metric exporter: %w", err)
return nil, fmt.Errorf("creating metric reader: %w", err)
}

mp := sdkmetric.NewMeterProvider(
sdkmetric.WithReader(sdkmetric.NewPeriodicReader(metricExp, sdkmetric.WithInterval(30*time.Second))),
sdkmetric.WithReader(metricReader),
sdkmetric.WithResource(res),
)
otel.SetMeterProvider(mp)
Expand Down