go: added telemetry and openobserve log handling

go.mod

@@ -30,8 +30,11 @@ require (
 	github.com/spf13/pflag v1.0.5
 	github.com/stephenafamo/bob v0.28.1
 	github.com/tidwall/pretty v1.2.1
+	go.opencensus.io v0.24.0
 	go.opentelemetry.io/otel v1.28.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.28.0
 	go.opentelemetry.io/otel/metric v1.28.0
+	go.opentelemetry.io/otel/sdk v1.28.0
 	go.opentelemetry.io/otel/trace v1.28.0
 	golang.org/x/net v0.26.0
 	google.golang.org/protobuf v1.34.2
@@ -40,6 +43,7 @@ require (
 require (
 	github.com/aarondl/json v0.0.0-20221020222930-8b0db17ef1bf // indirect
 	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/dlclark/regexp2 v1.11.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/ghodss/yaml v1.0.0 // indirect
@@ -47,8 +51,10 @@ require (
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-viper/mapstructure/v2 v2.0.0-alpha.1 // indirect
+	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
 	github.com/google/cel-go v0.20.1 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/knadh/koanf/maps v0.1.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
@@ -59,14 +65,17 @@ require (
 	github.com/segmentio/asm v1.2.0 // indirect
 	github.com/stephenafamo/scan v0.4.2 // indirect
 	github.com/stoewer/go-strcase v1.3.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/exp v0.0.0-20240325151524-a685a6edb6d8 // indirect
 	golang.org/x/sync v0.7.0 // indirect
 	golang.org/x/sys v0.22.0 // indirect
 	golang.org/x/text v0.16.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240401170217-c3f982113cda // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240701130421-f6361c86f094 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240701130421-f6361c86f094 // indirect
+	google.golang.org/grpc v1.64.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,11 +1,13 @@
 buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.34.2-20240717164558-a6c49f84cc0f.2 h1:SZRVx928rbYZ6hEKUIN+vtGDkl7uotABRWGY4OAg5gM=
 buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.34.2-20240717164558-a6c49f84cc0f.2/go.mod h1:ylS4c28ACSI59oJrOdW4pHS4n0Hw4TgSPHn8rpHl4Yw=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 connectrpc.com/connect v1.16.2 h1:ybd6y+ls7GOlb7Bh5C8+ghA6SvCBajHwxssO2CGFjqE=
 connectrpc.com/connect v1.16.2/go.mod h1:n2kgwskMHXC+lVqb18wngEpF95ldBHXjZYJussz5FRc=
 connectrpc.com/cors v0.1.0 h1:f3gTXJyDZPrDIZCQ567jxfD9PAIpopHiRDnJRt3QuOQ=
 connectrpc.com/cors v0.1.0/go.mod h1:v8SJZCPfHtGH1zsm+Ttajpozd4cYIUryl4dFB6QEpfg=
 connectrpc.com/validate v0.1.0 h1:r55jirxMK7HO/xZwVHj3w2XkVFarsUM77ZDy367NtH4=
 connectrpc.com/validate v0.1.0/go.mod h1:GU47c9/x/gd+u9wRSPkrQOP46gx2rMN+Wo37EHgI3Ow=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
 github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
 github.com/Masterminds/semver/v3 v3.1.1 h1:hLg3sBzpNErnxhQtUy/mmLR2I9foDujNK030IGemrRc=
@@ -24,12 +26,21 @@ github.com/antlr4-go/antlr/v4 v4.13.0 h1:lxCg3LAv+EUK6t1i0y1V6/SLeUi0eKEKdhQAlS8
 github.com/antlr4-go/antlr/v4 v4.13.0/go.mod h1:pfChB/xh/Unjila75QW7+VU4TSnWnnk9UTnmpPaOR2g=
 github.com/bufbuild/protovalidate-go v0.6.3 h1:wxQyzW035zM16Binbaz/nWAzS12dRIXhZdSUWRY7Fv0=
 github.com/bufbuild/protovalidate-go v0.6.3/go.mod h1:J4PtwP9Z2YAGgB0+o+tTWEDtLtXvz/gfhFZD8pbzM/U=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dlclark/regexp2 v1.11.0 h1:G/nrcoOa7ZXlpoa/91N3X7mM3r8eIlMBBJZvsz/mxKI=
 github.com/dlclark/regexp2 v1.11.0/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
+github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
+github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/envoyproxy/protoc-gen-validate v1.0.4 h1:gVPz/FMfvh57HdSJQyvBtF00j8JU4zdyUgIUNhlgg0A=
 github.com/envoyproxy/protoc-gen-validate v1.0.4/go.mod h1:qys6tmnRsYrQqIhm2bvKZH4Blx/1gTIZ2UKVY1M+Yew=
 github.com/fatih/color v1.17.0 h1:GlRw1BRJxkpqUCBKzKOw098ed57fEsKeNjpTe3cSjK4=
@@ -51,12 +62,34 @@ github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-viper/mapstructure/v2 v2.0.0-alpha.1 h1:TQcrn6Wq+sKGkpyPvppOz99zsMBaUOKXq6HSv655U1c=
 github.com/go-viper/mapstructure/v2 v2.0.0-alpha.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
+github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
+github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
+github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
+github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
+github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
+github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
+github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/google/cel-go v0.20.1 h1:nDx9r8S3L4pE61eDdt8igGj8rf5kjYR3ILxWIpWNi84=
 github.com/google/cel-go v0.20.1/go.mod h1:kWcIzTsPX0zmQ+H3TirHstLLf9ep5QTsZBN9u4dOYLg=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 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/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 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 v2.20.0 h1:bkypFPDjIYGfCYD5mRBvpqxfYX1YCS1PXdKYWi8FsN0=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0/go.mod h1:P+Lt/0by1T8bfcF3z737NnSbmxQAppXMRziHUxPOC8k=
 github.com/huandu/xstrings v1.3.1 h1:4jgBlKK6tLKFvO8u5pmYjG91cqytmDCDvGh7ECVFfFs=
 github.com/huandu/xstrings v1.3.1/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
@@ -104,10 +137,11 @@ github.com/ogen-go/ogen v1.2.2 h1:fFqZzRacbdnOQeqep4efVeqj7/4hI1mlimrY8rn970A=
 github.com/ogen-go/ogen v1.2.2/go.mod h1:S8X2dBfTKlpy+pcGLXP+aLLzvUAXAvtONtuovrN3+gw=
 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_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/qdm12/reprint v0.0.0-20200326205758-722754a53494 h1:wSmWgpuccqS2IOfmYrbRiUgv+g37W5suLLLxwwniTSc=
 github.com/qdm12/reprint v0.0.0-20200326205758-722754a53494/go.mod h1:yipyliwI08eQ6XwDm1fEwKPdF/xdbkiHtrU+1Hg+vc4=
-github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
-github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
 github.com/rs/cors v1.11.0 h1:0B9GE/r9Bc2UxRMMtymBkHTenPkHDv0CW4Y98GBY+po=
 github.com/rs/cors v1.11.0/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
@@ -149,41 +183,100 @@ github.com/volatiletech/inflect v0.0.1 h1:2a6FcMQyhmPZcLa+uet3VJ8gLn/9svWhJxJYwv
 github.com/volatiletech/inflect v0.0.1/go.mod h1:IBti31tG6phkHitLlr5j7shC5SOo//x0AjDzaJU1PLA=
 github.com/volatiletech/strmangle v0.0.6 h1:AdOYE3B2ygRDq4rXDij/MMwq6KVK/pWAYxpC7CLrkKQ=
 github.com/volatiletech/strmangle v0.0.6/go.mod h1:ycDvbDkjDvhC0NUU8w3fWwl5JEMTV56vTKXzR3GeR+0=
+go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
+go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/otel v1.28.0 h1:/SqNcYk+idO0CxKEUOtKQClMK/MimZihKYMruSMViUo=
 go.opentelemetry.io/otel v1.28.0/go.mod h1:q68ijF8Fc8CnMHKyzqL6akLO46ePnjkgfIMIjUIX9z4=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0 h1:3Q/xZUyC1BBkualc9ROb4G8qkH90LXEIICcs5zv1OYY=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0/go.mod h1:s75jGIWA9OfCMzF0xr+ZgfrB5FEbbV7UuYo32ahUiFI=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.28.0 h1:j9+03ymgYhPKmeXGk5Zu+cIZOlVzd9Zv7QIiyItjFBU=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.28.0/go.mod h1:Y5+XiUG4Emn1hTfciPzGPJaSI+RpDts6BnCIir0SLqk=
 go.opentelemetry.io/otel/metric v1.28.0 h1:f0HGvSl1KRAU1DLgLGFjrwVyismPlnuU6JD6bOeuA5Q=
 go.opentelemetry.io/otel/metric v1.28.0/go.mod h1:Fb1eVBFZmLVTMb6PPohq3TO9IIhUisDsbJoL/+uQW4s=
+go.opentelemetry.io/otel/sdk v1.28.0 h1:b9d7hIry8yZsgtbmM0DKyPWMMUMlK9NEKuIG4aBqWyE=
+go.opentelemetry.io/otel/sdk v1.28.0/go.mod h1:oYj7ClPUA7Iw3m+r7GeEjz0qckQRJK2B8zjcZEfu7Pg=
 go.opentelemetry.io/otel/trace v1.28.0 h1:GhQ9cUuQGmNDd5BTCP2dAvv75RdMxEfTmYejp+lkx9g=
 go.opentelemetry.io/otel/trace v1.28.0/go.mod h1:jPyXzNPg6da9+38HEwElrQiHlVMTnVfM3/yv2OlIHaI=
+go.opentelemetry.io/proto/otlp v1.3.1 h1:TrMUixzpM0yuc/znrFTP9MMRh8trP93mkCiDVeXrui0=
+go.opentelemetry.io/proto/otlp v1.3.1/go.mod h1:0X1WI4de4ZsLrrJNLAQbFeLCm3T7yBkR0XqQ7niQU+8=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
 go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
 golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
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@@ -195,5 +288,7 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
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 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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go/pkg/log/log.go

@@ -1 +0,0 @@
-package log

go/pkg/telemetry/end.go

@@ -0,0 +1,31 @@
+package telemetry
+
+import (
+	"go.opencensus.io/trace"
+	"go.opentelemetry.io/otel/codes"
+)
+
+// EndWithStatus ends the span with the status of the error if not nil
+// otherwise it will set the status to OK.
+//
+// This function should be used for ending spans, not for starting spans
+// or spans that will have children, to avoid duplicate error recordings.
+//
+// Do not defer this function directly since err might be nil at the
+// start of defer call. Instead it should be wrapped in a function to
+// capture the error correctly.
+//
+// Example:
+//
+//	var err error
+//	ctx, span := tracer.Start(ctx, "my-operation")
+//	defer func() { telemetry.EndWithStatus(span, err) }()
+func EndWithStatus(span trace.Span, err error) {
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, err.Error())
+	} else {
+		span.SetStatus(codes.Ok, "")
+	}
+	span.End()
+}

go/pkg/telemetry/open_observe.go

@@ -0,0 +1,218 @@
+package telemetry
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"sync"
+	"time"
+)
+
+type HTTPClient interface {
+	Do(req *http.Request) (*http.Response, error)
+}
+
+type OpenObserveHandler struct {
+	opts             OpenObserveHandlerOptions
+	semaphore        chan struct{}
+	withAttrs        []slog.Attr
+	withGroup        []string
+	buffer           *bytes.Buffer
+	mu               sync.Mutex
+	sendDebounceFunc *time.Timer
+}
+
+func (sl *OpenObserveHandler) clone() *OpenObserveHandler {
+	return &OpenObserveHandler{
+		opts:      sl.opts,
+		semaphore: sl.semaphore,
+		withAttrs: sl.withAttrs,
+		withGroup: sl.withGroup,
+		buffer:    &bytes.Buffer{},
+	}
+}
+
+func (sl *OpenObserveHandler) Enabled(ctx context.Context, lvl slog.Level) bool {
+	return sl.opts.HandlerOptions.Level.Level() <= lvl
+}
+
+func (sl *OpenObserveHandler) Handle(ctx context.Context, record slog.Record) error {
+	sl.mu.Lock()
+	defer sl.mu.Unlock()
+	if sl.sendDebounceFunc == nil {
+		sl.sendDebounceFunc = time.AfterFunc(sl.opts.BufferTimeout, func() {
+			sl.mu.Lock()
+			defer sl.mu.Unlock()
+			sl.sendDebounceFunc = nil
+			if sl.buffer.Len() < 1 {
+				return
+			}
+			b := sl.extractBuffer().Bytes()
+			if b[len(b)-1] == ',' {
+				b = b[:len(b)-1]
+			}
+			if b[len(b)-1] == '\n' {
+				b = b[:len(b)-1]
+			}
+			b = append(b, ']')
+			sl.semaphore <- struct{}{}
+			go func() {
+				defer func() { <-sl.semaphore }()
+				sl.postLog(bytes.NewReader(b))
+			}()
+		})
+	}
+
+	if sl.buffer.Len() < 1 {
+		sl.buffer.WriteRune('[')
+	}
+
+	jsonHandler := sl.jsonHandler(sl.buffer)
+	if err := jsonHandler.Handle(ctx, record); err != nil {
+		return err
+	}
+
+	if sl.buffer.Len() < sl.opts.BufferSize-1 {
+		sl.buffer.WriteRune(',')
+	} else {
+		sl.sendDebounceFunc.Stop()
+		sl.sendDebounceFunc = nil
+		sl.buffer.WriteRune(']')
+		buf := sl.extractBuffer()
+		sl.semaphore <- struct{}{}
+		go func() {
+			defer func() { <-sl.semaphore }()
+			sl.postLog(buf)
+		}()
+	}
+
+	return nil
+}
+
+func (sl *OpenObserveHandler) extractBuffer() *bytes.Buffer {
+	b := sl.buffer.Bytes()
+	newb := make([]byte, len(b))
+	copy(newb, b)
+	if sl.buffer.Cap() > 512*1024 {
+		sl.buffer = &bytes.Buffer{}
+	} else {
+		sl.buffer.Reset()
+	}
+	return bytes.NewBuffer(newb)
+}
+
+func noopReplaceAttr(_ []string, attr slog.Attr) slog.Attr { return attr }
+
+func (sl *OpenObserveHandler) jsonHandler(w io.Writer) slog.Handler {
+	handler := slog.NewJSONHandler(w, wrapHandlerOptions(sl.opts.HandlerOptions)).
+		WithAttrs(sl.opts.WithAttrs).
+		WithAttrs(sl.withAttrs)
+	for _, name := range sl.withGroup {
+		handler = handler.WithGroup(name)
+	}
+	return handler
+}
+
+func (sl *OpenObserveHandler) postLog(buf io.Reader) {
+	req, err := http.NewRequest(http.MethodPost, sl.opts.Endpoint, buf)
+	if err != nil {
+		fmt.Printf("openobserve: failed to create request: %s\n", err)
+		return
+	}
+	req.SetBasicAuth(sl.opts.Username, sl.opts.Password)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := sl.opts.HTTPClient.Do(req)
+	if err != nil {
+		fmt.Printf("openobserve: failed to execute request: %s\n", err)
+		return
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 400 {
+		fmt.Printf("openobserve: unexpected %d status code from openobserve instance when sending logs\n", resp.StatusCode)
+		body, _ := io.ReadAll(resp.Body)
+		fmt.Println(string(body))
+	}
+}
+
+func (sl *OpenObserveHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	sl2 := sl.clone()
+	sl2.withAttrs = append(sl2.withAttrs, attrs...)
+	return sl2
+}
+
+func (sl *OpenObserveHandler) WithGroup(name string) slog.Handler {
+	if name == "" {
+		return sl
+	}
+	sl2 := sl.clone()
+	sl2.withGroup = append(sl2.withGroup, name)
+	return sl2
+}
+
+func wrapHandlerOptions(in *slog.HandlerOptions) *slog.HandlerOptions {
+	return &slog.HandlerOptions{
+		AddSource:   in.AddSource,
+		Level:       in.Level,
+		ReplaceAttr: wrapReplaceAttr(in.ReplaceAttr),
+	}
+}
+
+type replaceAttrFunc = func(group []string, attr slog.Attr) slog.Attr
+
+func wrapReplaceAttr(replaceAttr replaceAttrFunc) replaceAttrFunc {
+	return func(group []string, attr slog.Attr) slog.Attr {
+		if len(group) > 0 {
+			return replaceAttr(group, attr)
+		}
+		if attr.Key == slog.TimeKey {
+			return slog.Attr{
+				Key:   "_timestamp",
+				Value: attr.Value,
+			}
+		}
+		return replaceAttr(group, attr)
+	}
+}
+
+type OpenObserveHandlerOptions struct {
+	HandlerOptions *slog.HandlerOptions
+
+	// Maximum size for the buffer to store log messages before flushing.
+	BufferSize int
+
+	// Maximum time to wait before flushing the buffer.
+	BufferTimeout time.Duration
+
+	// Maximum number of concurrent requests to send logs.
+	Concurrency int
+
+	// Endpoint to send logs to.
+	Endpoint string
+
+	// HTTPClient to use for sending logs.
+	HTTPClient HTTPClient
+
+	// Attributes to include in every log message.
+	WithAttrs []slog.Attr
+
+	Username string
+	Password string
+}
+
+func NewOpenObserveHandler(opts OpenObserveHandlerOptions) *OpenObserveHandler {
+	if opts.HandlerOptions == nil {
+		opts.HandlerOptions = &slog.HandlerOptions{}
+	}
+	if opts.HandlerOptions.ReplaceAttr == nil {
+		opts.HandlerOptions.ReplaceAttr = noopReplaceAttr
+	}
+	return &OpenObserveHandler{
+		opts:      opts,
+		semaphore: make(chan struct{}, opts.Concurrency),
+		buffer:    &bytes.Buffer{},
+	}
+}

go/pkg/telemetry/telemetry.go

@@ -0,0 +1,74 @@
+package telemetry
+
+import (
+	"context"
+	"time"
+
+	"github.com/tigorlazuardi/bluemage/go/config"
+	"github.com/tigorlazuardi/bluemage/go/pkg/errs"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
+	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/sdk/resource"
+	sdktrace "go.opentelemetry.io/otel/sdk/trace"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+)
+
+type Telemetry struct {
+	tracer *sdktrace.TracerProvider
+}
+
+func New(ctx context.Context, cfg *config.Config) (tele Telemetry, err error) {
+	otel.SetTextMapPropagator(createPropagator())
+	provider, err := createProvider(ctx, cfg)
+	if err != nil {
+		return tele, err
+	}
+	tele.tracer = provider
+	otel.SetTracerProvider(provider)
+	return tele, err
+}
+
+func createPropagator() propagation.TextMapPropagator {
+	return propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{})
+}
+
+func createProvider(ctx context.Context, cfg *config.Config) (*sdktrace.TracerProvider, error) {
+	opts := []sdktrace.TracerProviderOption{
+		sdktrace.WithSampler(sdktrace.TraceIDRatioBased(cfg.Float64("telemetry.trace.ratio"))),
+	}
+
+	if cfg.Bool("telemetry.openobserve.enable") && cfg.Bool("telemetry.openobserve.trace.enable") {
+		url := cfg.String("telemetry.openobserve.trace.url")
+		o2exporter, err := otlptracehttp.New(ctx,
+			otlptracehttp.WithEndpointURL(url),
+			otlptracehttp.WithHeaders(map[string]string{
+				"Authorization": cfg.String("telemetry.openobserve.trace.auth"),
+			}),
+		)
+		if err != nil {
+			return nil, errs.Wrap(err, "failed to create otlptracehttp exporter")
+		}
+		opts = append(opts, sdktrace.WithBatcher(o2exporter))
+	}
+
+	res := resource.NewWithAttributes(
+		semconv.SchemaURL,
+		semconv.ServiceNameKey.String("bluemage"),
+		semconv.ServiceVersionKey.String(cfg.String("runtime.version")),
+		attribute.String("environment", cfg.String("runtime.environment")),
+	)
+
+	opts = append(opts, sdktrace.WithResource(res))
+
+	return sdktrace.NewTracerProvider(opts...), nil
+}
+
+func (te *Telemetry) Close() error {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	return te.tracer.Shutdown(ctx)
+}