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-rw-r--r--tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile
index 3c744b434e..7bcada68e0 100644
--- a/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile
+++ b/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile
@@ -22,6 +22,7 @@ RUN apt-get update && apt-get install -y \
bzip2 \
ccache \
curl \
+ dnsutils \
gcc \
gcc-multilib \
git \
@@ -61,7 +62,7 @@ RUN apt-get update && apt-get install -y \
# Install Python packages from PyPI
RUN pip install pip --upgrade
RUN pip install virtualenv
-RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.2.0 six==1.10.0
+RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.2.0 six==1.10.0 twisted==17.5.0
#==================
# Ruby dependencies