angepasst von schmolli

docker-compose.yml

-services:
-  banktransfer:
-    build:
-      context: ./src
-      dockerfile: banktransfer/Dockerfile
-  myaktion:
-    build:
-      context: ./src
-      dockerfile: myaktion/Dockerfile
-    ports:
-      - "8000:8000"
-    environment:
-      - DB_CONNECT=mariadb:3306
-      - BANKTRANSFER_CONNECT=banktransfer:9111
-      - LOG_LEVEL=info # change to trace for debugging
-  mariadb:
-    image: mariadb:10.5
-    environment:
-      - MYSQL_ROOT_PASSWORD=root
-      - MYSQL_DATABASE=myaktion
\ No newline at end of file
+services:
+  banktransfer:
+    build:
+      context: ./src
+      dockerfile: banktransfer/Dockerfile
+    ports:
+      - "9111:9111"
+  myaktion:
+    build:
+      context: ./src
+      dockerfile: myaktion/Dockerfile
+    ports:
+      - "8000:8000"
+    environment:
+      - DB_CONNECT=mariadb:3306
+      - BANKTRANSFER_CONNECT=banktransfer:9111
+      - LOG_LEVEL=info # change to trace for debugging
+  mariadb:
+    image: mariadb:10.5
+    environment:
+      - MYSQL_ROOT_PASSWORD=root
+      - MYSQL_DATABASE=myaktion

src/banktransfer/Dockerfile

-FROM golang:1.16-buster
+FROM golang:1.20-buster
 
 WORKDIR /go/src/app
 COPY ./banktransfer .
 
 RUN apt update
 RUN apt install -y protobuf-compiler
+
 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@1.2
+RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2
 
 RUN go mod download
 RUN go generate ./...
@@ -14,4 +15,4 @@ RUN go install
 
 CMD ["banktransfer"]
 
-EXPOSE 9111
\ No newline at end of file
+EXPOSE 9111

src/myaktion/Dockerfile

-FROM golang:1.16-buster
+FROM golang:1.20-buster
 # non-go modules dependencies
 RUN apt update
 RUN apt install -y protobuf-compiler
+
 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@1.2
+RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2
+
 # copy code and protobuf
 WORKDIR /go/src/app
 COPY ./myaktion .
 COPY ./banktransfer/grpc/banktransfer/banktransfer.proto ./client/banktransfer/
+
 RUN go mod download
 RUN go generate ./...
 RUN go install
+
 RUN wget https://raw.githubusercontent.com/vishnubob/wait-for-it/81b1373f17855a4dc21156cfe1694c31d7d1792e/wait-for-it.sh
 RUN chmod +x ./wait-for-it.sh ./docker-entrypoint.sh
+
 ENTRYPOINT ["./docker-entrypoint.sh"]
 CMD ["myaktion"]
+
 EXPOSE 8000
\ No newline at end of file

src/myaktion/client/banktransfer.go

@@ -14,13 +14,12 @@ var (
 	bankTransferTarget = os.Getenv("BANKTRANSFER_CONNECT")
 )
 
-func GetBankTransferConnection() (*grpc.ClientConn, error) {
+func GetBankTransferConnection(ctx context.Context) (*grpc.ClientConn, error) {
 	var err error
 	log.WithFields(log.Fields{
 		"target": bankTransferTarget,
 	}).Infoln("Connecting to banktransfer service")
 	var conn *grpc.ClientConn
-	ctx, _ := context.WithTimeout(context.Background(), TimeoutLimitation)
 	conn, err = grpc.DialContext(ctx, bankTransferTarget, grpc.WithInsecure(), grpc.WithBlock())
 	if err != nil {
 		return nil, err