THRIFT-4236 Support context in go generated code
Client: Go
Patch: taozle <zhangliyang26@gmail.com>

This closes #1309
diff --git a/build/docker/ubuntu/Dockerfile b/build/docker/ubuntu/Dockerfile
index 25089eb..a1ff5a1 100644
--- a/build/docker/ubuntu/Dockerfile
+++ b/build/docker/ubuntu/Dockerfile
@@ -177,7 +177,7 @@
 RUN pip3 install -U backports.ssl_match_hostname tornado
 
 # Go
-RUN curl -sSL https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz | tar -C /usr/local/ -xz
+RUN curl -sSL https://storage.googleapis.com/golang/go1.4.3.linux-amd64.tar.gz | tar -C /usr/local/ -xz
 ENV PATH /usr/local/go/bin:$PATH
 
 # Haxe