feat(Dockerfile): upgrade to glide version 0.8.0

Author: arschles

rootfs/Dockerfile

@@ -5,10 +5,10 @@ ENV GLIDE_HOME=/root
 
 WORKDIR /tmp
 
-RUN wget https://github.com/Masterminds/glide/releases/download/0.7.2/glide-0.7.2-linux-amd64.tar.gz && \
-    tar xvfz glide-0.7.2-linux-amd64.tar.gz && \
+RUN wget https://github.com/Masterminds/glide/releases/download/0.7.2/glide-0.8.0-linux-amd64.tar.gz && \
+    tar xvfz glide-0.8.0-linux-amd64.tar.gz && \
     mv linux-amd64/glide /usr/local/bin/ && \
-    rm -rf linux-amd64 glide-0.7.2-linux-amd64.tar.gz
+    rm -rf linux-amd64 glide-0.8.0-linux-amd64.tar.gz
 
 RUN go get -u -v github.com/golang/lint/golint