Update CLI version in test-running Dockerfiles

Signed-off-by: Joffrey F <[email protected]>

Dockerfile

@@ -17,11 +17,13 @@ RUN set -ex; \
     ; \
     rm -rf /var/lib/apt/lists/*
 
-RUN curl https://get.docker.com/builds/Linux/x86_64/docker-1.8.3 \
-        -o /usr/local/bin/docker && \
-    SHA256=f024bc65c45a3778cf07213d26016075e8172de8f6e4b5702bedde06c241650f; \
-    echo "${SHA256}  /usr/local/bin/docker" | sha256sum -c - && \
-    chmod +x /usr/local/bin/docker
+RUN curl -fsSL -o dockerbins.tgz "https://download.docker.com/linux/static/stable/x86_64/docker-17.12.0-ce.tgz" && \
+    SHA256=692e1c72937f6214b1038def84463018d8e320c8eaf8530546c84c2f8f9c767d; \
+    echo "${SHA256}  dockerbins.tgz" | sha256sum -c - && \
+    tar xvf dockerbins.tgz docker/docker --strip-components 1 && \
+    mv docker /usr/local/bin/docker && \
+    chmod +x /usr/local/bin/docker && \
+    rm dockerbins.tgz
 
 # Build Python 2.7.13 from source
 RUN set -ex; \

Dockerfile.armhf

@@ -17,9 +17,11 @@ RUN set -ex; \
     ; \
     rm -rf /var/lib/apt/lists/*
 
-RUN curl https://get.docker.com/builds/Linux/armel/docker-1.8.3 \
-        -o /usr/local/bin/docker && \
-    chmod +x /usr/local/bin/docker
+RUN curl -fsSL -o dockerbins.tgz "https://download.docker.com/linux/static/stable/armhf/docker-17.12.0-ce.tgz" && \
+    tar xvf dockerbins.tgz docker/docker --strip-components 1 && \
+    mv docker /usr/local/bin/docker && \
+    chmod +x /usr/local/bin/docker && \
+    rm dockerbins.tgz
 
 # Build Python 2.7.13 from source
 RUN set -ex; \