fixes the build chain for docker

do.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 usage() {
-    echo "Usage $0 (build-linux|docker-image|docker-build|test-sync|sync)"
+    echo "Usage $0 (build-linux|docker-image|docker-dep|docker-build|test-sync|sync)"
 }
 
 if [ "$1" == "" ]; then
@@ -19,8 +19,11 @@ while (( "$#" )); do
         docker-image)
             docker build -t space-devices-build docker/
             ;;
+        docker-dep)
+            docker run --rm -it -v $(pwd):/go/src/github.com/ktt-ol/spaceDevices -u $(id -u):$(id -g) space-devices-build dep ensure -v -vendor-only
+            ;;
         docker-build)
-            docker run --rm -it -v $(pwd):/go/src/spaceDevices space-devices-build dep ensure -v -vendor-only && ./do.sh build-linux
+            docker run --rm -it -v $(pwd):/go/src/github.com/ktt-ol/spaceDevices -u $(id -u):$(id -g) space-devices-build ./do.sh build-linux
             ;;
         test-sync)
             rsync -n -avzi --delete spaceDevices listUnkown webUI macVendorDb.csv root@spacegate:/home/status/spaceDevices2/

docker/Dockerfile

@@ -1,6 +1,7 @@
 FROM golang:1.13
 
 RUN curl -fsSL -o /usr/local/bin/dep https://github.com/golang/dep/releases/download/0.5.2/dep-linux-amd64 && chmod +x /usr/local/bin/dep
+RUN mkdir -p /go/src/github.com/ktt-ol/spaceDevices
 
-RUN mkdir -p /go/src/spaceDevices
-WORKDIR /go/src/spaceDevices
+ENV HOME=/tmp
+WORKDIR /go/src/github.com/ktt-ol/spaceDevices

docker/README.md

@@ -11,5 +11,9 @@ Use the `do.sh` script file in the top directory.
 ## Build binary
 
 ```shell script
+# installs dependencies, only once needed
+./do.sh docker-dep 
+
+# build the binary
 ./do.sh docker-build
 ```