update go version (open-telemetry#409)

* update go version

* update changelog

* changelog update

CHANGELOG.md

@@ -95,3 +95,17 @@ significant modifications will be credited to OpenTelemetry Authors.
 ([#362](https://github.com/open-telemetry/opentelemetry-demo/pull/362))
 * Add custom span and custom span attributes for Feature Flag Service
 ([#371](https://github.com/open-telemetry/opentelemetry-demo/pull/371))
+* Change Cart Service to be async
+([#372](https://github.com/open-telemetry/opentelemetry-demo/pull/372))
+* Removed Postgres error on startup
+([#378](https://github.com/open-telemetry/opentelemetry-demo/pull/378))
+* Fixed traffic to Ad and Recommendation Service
+([#379](https://github.com/open-telemetry/opentelemetry-demo/pull/379))
+* Add dotnet runtime metrics to the Cart Service
+([#393](https://github.com/open-telemetry/opentelemetry-demo/pull/393))
+* Add dotnet instrumentation libraries to the Cart Service
+([#394](https://github.com/open-telemetry/opentelemetry-demo/pull/394))
+* Fixed Feature Flag Service error on start up
+([#402](https://github.com/open-telemetry/opentelemetry-demo/pull/402))
+* Update Checkout Service Go version to 1.19 once OTel Go Metrics require 1.18+
+([#406](https://github.com/open-telemetry/opentelemetry-demo/pull/406))

src/checkoutservice/Dockerfile

@@ -12,16 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.17.7-alpine AS builder
+FROM golang:1.19.2-alpine AS builder
 RUN apk add build-base protoc
 WORKDIR /usr/src/app/
 
 # Restore dependencies
 COPY ./src/checkoutservice/ ./
 COPY ./pb/ ./proto/
 RUN go mod download
-RUN go get google.golang.org/protobuf/cmd/protoc-gen-go
-RUN go get google.golang.org/grpc/cmd/protoc-gen-go-grpc
+RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28
+RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2
 
 # Build executable
 RUN protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./

src/checkoutservice/go.mod

@@ -1,6 +1,6 @@
 module github.com/open-telemetry/opentelemetry-demo/src/checkoutservice
 
-go 1.17
+go 1.19
 
 require (
 	github.com/google/uuid v1.3.0