diff --git a/tools/docker/Dockerfile b/tools/docker/Dockerfile
index 2a451321..57830565 100644
--- a/tools/docker/Dockerfile
+++ b/tools/docker/Dockerfile
@@ -30,9 +30,19 @@
 # Base Dockerfile for gRPC dev images
 FROM debian:latest
 
+# Apt source for old Python versions.
 RUN echo 'deb http://ppa.launchpad.net/fkrull/deadsnakes/ubuntu trusty main' > /etc/apt/sources.list.d/deadsnakes.list && \
-  gpg --keyserver keyserver.ubuntu.com --recv-keys DB82666C && \
-  gpg --export DB82666C | apt-key add -
+  apt-key adv --keyserver keyserver.ubuntu.com --recv-keys DB82666C
+
+# Apt source for Oracle Java.
+run echo 'deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main' > /etc/apt/sources.list.d/webupd8team-java-trusty.list && \
+  apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886 && \
+  echo "oracle-java7-installer shared/accepted-oracle-license-v1-1 select true" | debconf-set-selections
+
+# Apt source for Mono
+run echo "deb http://download.mono-project.com/repo/debian wheezy main" | tee /etc/apt/sources.list.d/mono-xamarin.list && \
+  echo "deb http://download.mono-project.com/repo/debian wheezy-libjpeg62-compat main" | tee -a /etc/apt/sources.list.d/mono-xamarin.list && \
+  apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 
 # Install dependencies.  We start with the basic ones require to build protoc
 # and the C++ build
@@ -52,12 +62,19 @@ RUN apt-get update && apt-get install -y \
   libtool \
   make \
   parallel \
+  wget \
+  # -- For csharp --
+  mono-devel \
+  referenceassemblies-pcl \
+  nunit \
   # -- For all Java builds -- \
   maven \
   # -- For java_jdk6 -- \
   #   oops! not in jessie. too old? openjdk-6-jdk \
   # -- For java_jdk7 -- \
   openjdk-7-jdk \
+  # -- For java_oracle7 -- \
+  oracle-java7-installer \
   # -- For python / python_cpp -- \
   python-setuptools \
   python-pip \
@@ -65,14 +82,40 @@ RUN apt-get update && apt-get install -y \
   python2.6-dev \
   python3.3-dev \
   python3.4-dev \
+  # -- For Ruby --
+  ruby \
   && apt-get clean
 
+##################
+# C# dependencies
+
+RUN wget www.nuget.org/NuGet.exe -O /usr/local/bin/nuget.exe
+
+##################
+# Python dependencies
+
 # These packages exist in apt-get, but their versions are too old, so we have
 # to get updates from pip.
 
 RUN pip install pip --upgrade
 RUN pip install virtualenv tox
 
+
+##################
+# Ruby dependencies
+
+# Install rvm
+RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
+RUN \curl -sSL https://get.rvm.io | bash -s stable
+
+# Install Ruby 2.1
+RUN /bin/bash -l -c "rvm install ruby-2.1"
+RUN /bin/bash -l -c "rvm use --default ruby-2.1"
+RUN /bin/bash -l -c "echo 'gem: --no-ri --no-rdoc' > ~/.gemrc"
+RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
+RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.1' >> ~/.bashrc"
+RUN /bin/bash -l -c "gem install bundler --no-ri --no-rdoc"
+
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++
diff --git a/tools/run_tests/jenkins.sh b/tools/run_tests/jenkins.sh
index 1d192aa4..620c2116 100755
--- a/tools/run_tests/jenkins.sh
+++ b/tools/run_tests/jenkins.sh
@@ -26,10 +26,16 @@ $TEST_SCRIPT cpp | tee $OUTPUT_DIR/1/cpp
 # Other tests are run in parallel.  The overall run fails if any one of them
 # fails.
 
-parallel $TEST_SCRIPT ::: \
+parallel --results $OUTPUT_DIR $TEST_SCRIPT ::: \
+  csharp \
   java_jdk7 \
   javanano_jdk7 \
+  java_oracle7 \
+  javanano_oracle7 \
   python \
-  python_cpp
+  python_cpp \
+  ruby21
 
 # java_jdk6 \
+
+find $OUTPUT_DIR
diff --git a/tools/run_tests/tests.sh b/tools/run_tests/tests.sh
index 353ce62d..623cf96c 100755
--- a/tools/run_tests/tests.sh
+++ b/tools/run_tests/tests.sh
@@ -45,16 +45,20 @@ build_csharp() {
   # need to really build protoc, but it's simplest to keep with the
   # conventions of the other builds.
   internal_build_cpp
+  NUGET=/usr/local/bin/nuget.exe
 
-  # Install latest version of Mono
-  sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-  echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
-  echo "deb http://download.mono-project.com/repo/debian wheezy-libtiff-compat main" | sudo tee -a /etc/apt/sources.list.d/mono-xamarin.list
-  sudo apt-get update -qq
-  sudo apt-get install -qq mono-devel referenceassemblies-pcl nunit
-  wget www.nuget.org/NuGet.exe -O nuget.exe
+  if [ "$TRAVIS" == "true" ]; then
+    # Install latest version of Mono
+    sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+    echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
+    echo "deb http://download.mono-project.com/repo/debian wheezy-libtiff-compat main" | sudo tee -a /etc/apt/sources.list.d/mono-xamarin.list
+    sudo apt-get update -qq
+    sudo apt-get install -qq mono-devel referenceassemblies-pcl nunit
+    wget www.nuget.org/NuGet.exe -O nuget.exe
+    NUGET=../../nuget.exe
+  fi
 
-  (cd csharp/src; mono ../../nuget.exe restore)
+  (cd csharp/src; mono $NUGET restore)
   csharp/buildall.sh
   cd conformance && make test_csharp && cd ..
 }
@@ -89,11 +93,13 @@ use_java() {
       export PATH=/usr/lib/jvm/java-7-openjdk-amd64/bin:$PATH
       ;;
     oracle7)
-      sudo apt-get install python-software-properties # for apt-add-repository
-      echo "oracle-java7-installer shared/accepted-oracle-license-v1-1 select true" | \
-        sudo debconf-set-selections
-      yes | sudo apt-add-repository ppa:webupd8team/java
-      yes | sudo apt-get install oracle-java7-installer
+      if [ "$TRAVIS" == "true" ]; then
+        sudo apt-get install python-software-properties # for apt-add-repository
+        echo "oracle-java7-installer shared/accepted-oracle-license-v1-1 select true" | \
+          sudo debconf-set-selections
+        yes | sudo apt-add-repository ppa:webupd8team/java
+        yes | sudo apt-get install oracle-java7-installer
+      fi;
       export PATH=/usr/lib/jvm/java-7-oracle/bin:$PATH
       ;;
   esac
@@ -322,10 +328,10 @@ Usage: $0 { cpp |
             objectivec_osx |
             python |
             python_cpp |
-            ruby_19 |
-            ruby_20 |
-            ruby_21 |
-            ruby_22 |
+            ruby19 |
+            ruby20 |
+            ruby21 |
+            ruby22 |
             jruby }
 "
   exit 1