few path changes and added fix from master

Dockerfile

@@ -1,7 +1,7 @@
-FROM golang:1.19-alpine AS build
+FROM golang:1.18-alpine AS build
 
 WORKDIR /Activity-Relay
-COPY . /Activity-Relay
+COPY ./app /Activity-Relay
 
 RUN  mkdir -p /rootfs/usr/bin && \
      apk add -U --no-cache git && \
@@ -9,6 +9,9 @@ RUN  mkdir -p /rootfs/usr/bin && \
 
 FROM alpine
 
+COPY ./actor.pem /var/lib/relay/
+
 COPY --from=build /rootfs/usr/bin /usr/bin
 RUN  chmod +x /usr/bin/relay && \
      apk add -U --no-cache ca-certificates
+EXPOSE 8080