Merge pull request #76 from acm-uiuc/dockerfile-patch

Improve caching on Dockerfile

Author: bcongdon

Dockerfile

@@ -5,18 +5,20 @@ MAINTAINER ACM@UIUC
 # Get git
 RUN apk add --update git bash
 
+# Get dep
+RUN  go get -u github.com/golang/dep/...
+
+# Create folder for client key database
+RUN mkdir -p /var/groot-api-gateway/
+
 # Bundle app source
 ADD . $GOPATH/src/github.com/acm-uiuc/groot-api-gateway
 WORKDIR $GOPATH/src/github.com/acm-uiuc/groot-api-gateway
 
 # Download and install external dependencies
-RUN  go get -u github.com/golang/dep/...
-    
-# Create folder for client key database
-RUN mkdir -p /var/groot-api-gateway/
+RUN dep ensure -vendor-only
 
 # Build groot
-ADD build.sh $GOPATH/src/github.com/acm-uiuc/groot-api-gateway
-RUN dep ensure && ./build.sh
+RUN ./build.sh
 
-CMD ["./build/groot-api-gateway"]
+CMD ["./build/groot-api-gateway"]