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-rw-r--r--tools/dockerfile/distribtest/csharp_ubuntu1604_x64/Dockerfile15
1 files changed, 5 insertions, 10 deletions
diff --git a/tools/dockerfile/distribtest/csharp_ubuntu1604_x64/Dockerfile b/tools/dockerfile/distribtest/csharp_ubuntu1604_x64/Dockerfile
index 0f40f18e38..1a58f9784b 100644
--- a/tools/dockerfile/distribtest/csharp_ubuntu1604_x64/Dockerfile
+++ b/tools/dockerfile/distribtest/csharp_ubuntu1604_x64/Dockerfile
@@ -14,19 +14,14 @@
FROM ubuntu:16.04
+RUN apt-get update && apt-get install -y apt-transport-https && apt-get clean
+
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+RUN echo "deb https://download.mono-project.com/repo/ubuntu stable-xenial main" | tee /etc/apt/sources.list.d/mono-official-stable.list
+
RUN apt-get update && apt-get install -y \
mono-devel \
- ca-certificates-mono \
nuget \
&& apt-get clean
-# make sure we have nuget 2.12+ (in case there's an older cached docker image)
-RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-RUN echo "deb http://download.mono-project.com/repo/debian wheezy main" | tee /etc/apt/sources.list.d/mono-xamarin.list
-RUN apt-get update && apt-get install -y nuget && apt-get clean
-
-# Prevent "Error: SendFailure (Error writing headers)" when fetching nuget packages
-# See https://github.com/tianon/docker-brew-ubuntu-core/issues/86
-RUN apt-get update && apt-get install -y tzdata && apt-get clean
-
RUN apt-get update && apt-get install -y unzip && apt-get clean