add support for pubsub

Dockerfile

@@ -2,7 +2,7 @@ FROM golang:alpine AS builder
 RUN apk --no-cache --no-progress add make upx
 WORKDIR /go/src/lolcathost/pathway/
 
-COPY *.go VERSION ./
+COPY src/*.go VERSION ./
 RUN echo Building && \
     env CGO_ENABLED=0 GO111MODULE=off go build -trimpath -ldflags="all=-s -w -buildid= -X main.version=$(cat VERSION) -X main.buildtime=$(date +%FT%T%z)" && \
     echo Compressing && \