added docker compose

Dockerfile

@@ -10,7 +10,7 @@ RUN go mod download && go mod verify
 
 # build the source-code
 COPY backend .
-RUN go build -ldflags "-s -w" -o dist/backend
+RUN go build -ldflags "-s -w" -o dist/golunteer
 
 # build the frontend
 FROM node:current AS client-builder
@@ -29,19 +29,27 @@ FROM alpine:latest
 WORKDIR /usr/bin/app
 
 # copy the backend
-COPY --from=backend-builder /usr/src/backend/dist/backend backend
+COPY --from=backend-builder /usr/src/backend/dist/golunteer golunteer
+COPY backend/setup.sql backend/tables.sql ./
 
 # copy the client-html
 COPY --from=client-builder /usr/src/client/out html
 
+EXPOSE 80
+
 # Create a group and user
 RUN addgroup -S golunteer && adduser -S golunteer -G golunteer
 
-EXPOSE 61016
-EXPOSE 80
+# create an empty config-file so that a bind doesn't create a directory
+RUN touch config.yaml && chown -R golunteer:golunteer config.yaml
+RUN mkdir data && chown -R golunteer:golunteer data
+RUN mkdir logs && chown -R golunteer:golunteer logs
+
+# copy the config-file
+COPY backend/config-default.yaml .
 
 # Tell docker that all future commands should run as the appuser user
 USER golunteer
 
 # run the app
-CMD ["app"]
+CMD ["./golunteer", "data/config.yaml"]