Add different Dockerfile for each Python version

templates/tools/dockerfile/test/python_stretch_35_x64/Dockerfile.template

@@ -0,0 +1,29 @@
+%YAML 1.2
+--- |
+  # Copyright 2018 gRPC authors.
+  #
+  # Licensed under the Apache License, Version 2.0 (the "License");
+  # you may not use this file except in compliance with the License.
+  # You may obtain a copy of the License at
+  #
+  #     http://www.apache.org/licenses/LICENSE-2.0
+  #
+  # Unless required by applicable law or agreed to in writing, software
+  # distributed under the License is distributed on an "AS IS" BASIS,
+  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  # See the License for the specific language governing permissions and
+  # limitations under the License.
+  
+  FROM debian:stretch
+  
+  <%include file="../../apt_get_basic.include"/>
+  <%include file="../../gcp_api_libraries.include"/>
+  
+  RUN apt-get update && apt-get install -y python2.7 python3.5 python-all-dev python3-all-dev
+
+  RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
+  RUN curl https://bootstrap.pypa.io/get-pip.py | python3.5
+
+  <%include file="../../run_tests_addons.include"/>
+  # Define the default command.
+  CMD ["bash"]

templates/tools/dockerfile/test/python_stretch_36_x64/Dockerfile.template

@@ -22,12 +22,10 @@
   # Install Python Versions from Debian 'testing' repository
   RUN echo 'deb http://ftp.de.debian.org/debian testing main' >> /etc/apt/sources.list
   RUN echo 'APT::Default-Release "stable";' | tee -a /etc/apt/apt.conf.d/00local
-  RUN apt-get update && apt-get -t testing install -y python2.7 python3.5 python3.6 python3.7 python-all-dev python3-all-dev
+  RUN apt-get update && apt-get -t testing install -y python2.7 python3.6 python-all-dev python3-all-dev
 
   RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
-  RUN curl https://bootstrap.pypa.io/get-pip.py | python3.5
   RUN curl https://bootstrap.pypa.io/get-pip.py | python3.6
-  RUN curl https://bootstrap.pypa.io/get-pip.py | python3.7
 
   <%include file="../../run_tests_addons.include"/>
   # Define the default command.

templates/tools/dockerfile/test/python_stretch_37_x64/Dockerfile.template

@@ -0,0 +1,32 @@
+%YAML 1.2
+--- |
+  # Copyright 2018 gRPC authors.
+  #
+  # Licensed under the Apache License, Version 2.0 (the "License");
+  # you may not use this file except in compliance with the License.
+  # You may obtain a copy of the License at
+  #
+  #     http://www.apache.org/licenses/LICENSE-2.0
+  #
+  # Unless required by applicable law or agreed to in writing, software
+  # distributed under the License is distributed on an "AS IS" BASIS,
+  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  # See the License for the specific language governing permissions and
+  # limitations under the License.
+  
+  FROM debian:stretch
+  
+  <%include file="../../apt_get_basic.include"/>
+  <%include file="../../gcp_api_libraries.include"/>
+  
+  # Install Python Versions from Debian 'testing' repository
+  RUN echo 'deb http://ftp.de.debian.org/debian testing main' >> /etc/apt/sources.list
+  RUN echo 'APT::Default-Release "stable";' | tee -a /etc/apt/apt.conf.d/00local
+  RUN apt-get update && apt-get -t testing install -y python2.7 python3.7 python-all-dev python3-all-dev
+
+  RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
+  RUN curl https://bootstrap.pypa.io/get-pip.py | python3.7
+
+  <%include file="../../run_tests_addons.include"/>
+  # Define the default command.
+  CMD ["bash"]

tools/dockerfile/test/python_stretch_35_x64/Dockerfile

@@ -0,0 +1,66 @@
+# Copyright 2018 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM debian:stretch
+
+# Install Git and basic packages.
+RUN apt-get update && apt-get install -y \
+  autoconf \
+  autotools-dev \
+  build-essential \
+  bzip2 \
+  ccache \
+  curl \
+  dnsutils \
+  gcc \
+  gcc-multilib \
+  git \
+  golang \
+  gyp \
+  lcov \
+  libc6 \
+  libc6-dbg \
+  libc6-dev \
+  libgtest-dev \
+  libtool \
+  make \
+  perl \
+  strace \
+  python-dev \
+  python-setuptools \
+  python-yaml \
+  telnet \
+  unzip \
+  wget \
+  zip && apt-get clean
+
+#================
+# Build profiling
+RUN apt-get update && apt-get install -y time && apt-get clean
+
+# Google Cloud platform API libraries
+RUN apt-get update && apt-get install -y python-pip && apt-get clean
+RUN pip install --upgrade google-api-python-client oauth2client
+
+
+RUN apt-get update && apt-get install -y python2.7 python3.5 python-all-dev python3-all-dev
+
+RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
+RUN curl https://bootstrap.pypa.io/get-pip.py | python3.5
+
+
+RUN mkdir /var/local/jenkins
+
+# Define the default command.
+CMD ["bash"]

tools/dockerfile/test/python_stretch_36_x64/Dockerfile

@@ -57,12 +57,10 @@ RUN pip install --upgrade google-api-python-client oauth2client
 # Install Python Versions from Debian 'testing' repository
 RUN echo 'deb http://ftp.de.debian.org/debian testing main' >> /etc/apt/sources.list
 RUN echo 'APT::Default-Release "stable";' | tee -a /etc/apt/apt.conf.d/00local
-RUN apt-get update && apt-get -t testing install -y python2.7 python3.5 python3.6 python3.7 python-all-dev python3-all-dev
+RUN apt-get update && apt-get -t testing install -y python2.7 python3.6 python-all-dev python3-all-dev
 
 RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
-RUN curl https://bootstrap.pypa.io/get-pip.py | python3.5
 RUN curl https://bootstrap.pypa.io/get-pip.py | python3.6
-RUN curl https://bootstrap.pypa.io/get-pip.py | python3.7
 
 
 RUN mkdir /var/local/jenkins

tools/dockerfile/test/python_stretch_37_x64/Dockerfile

@@ -0,0 +1,69 @@
+# Copyright 2018 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM debian:stretch
+
+# Install Git and basic packages.
+RUN apt-get update && apt-get install -y \
+  autoconf \
+  autotools-dev \
+  build-essential \
+  bzip2 \
+  ccache \
+  curl \
+  dnsutils \
+  gcc \
+  gcc-multilib \
+  git \
+  golang \
+  gyp \
+  lcov \
+  libc6 \
+  libc6-dbg \
+  libc6-dev \
+  libgtest-dev \
+  libtool \
+  make \
+  perl \
+  strace \
+  python-dev \
+  python-setuptools \
+  python-yaml \
+  telnet \
+  unzip \
+  wget \
+  zip && apt-get clean
+
+#================
+# Build profiling
+RUN apt-get update && apt-get install -y time && apt-get clean
+
+# Google Cloud platform API libraries
+RUN apt-get update && apt-get install -y python-pip && apt-get clean
+RUN pip install --upgrade google-api-python-client oauth2client
+
+
+# Install Python Versions from Debian 'testing' repository
+RUN echo 'deb http://ftp.de.debian.org/debian testing main' >> /etc/apt/sources.list
+RUN echo 'APT::Default-Release "stable";' | tee -a /etc/apt/apt.conf.d/00local
+RUN apt-get update && apt-get -t testing install -y python2.7 python3.7 python-all-dev python3-all-dev
+
+RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
+RUN curl https://bootstrap.pypa.io/get-pip.py | python3.7
+
+
+RUN mkdir /var/local/jenkins
+
+# Define the default command.
+CMD ["bash"]

tools/run_tests/run_tests.py

@@ -759,8 +759,12 @@ class PythonLanguage(object):
             self.python_manager_name(), _docker_arch_suffix(self.args.arch))
 
     def python_manager_name(self):
-        if self.args.compiler in ['python3.5', 'python3.6', 'python3.7']:
-            return 'stretch'
+        if self.args.compiler == 'python3.5':
+            return 'stretch_35'
+        elif self.args.compiler == 'python3.6':
+            return 'stretch_36'
+        elif self.args.compiler == 'python3.7':
+            return 'stretch_37'
         elif self.args.compiler == 'python_alpine':
             return 'alpine'
         else: