Add Python 3 CI support. (#17209)

test/utils/docker/ubuntu1604py3/Dockerfile

@@ -0,0 +1,61 @@
+FROM ubuntu:16.04
+
+RUN apt-get update -y && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+    acl \
+    apache2 \
+    bzip2 \
+    curl \
+    debhelper \
+    debianutils \
+    devscripts \
+    docbook-xml \
+    dpkg-dev \
+    fakeroot \
+    gawk \
+    git \
+    iproute2 \
+    libxml2-utils \
+    locales \
+    lsb-release \
+    make \
+    mysql-server \
+    openssh-client \
+    openssh-server \
+    python3-coverage \
+    python3-dbus \
+    python3-httplib2 \
+    python3-jinja2 \
+    python3-mock \
+    python3-mysqldb \
+    python3-nose \
+    python3-paramiko \
+    python3-passlib \
+    python3-pip \
+    python3-setuptools \
+    python3-virtualenv \
+    python3-wheel \
+    python3-yaml \
+    reprepro \
+    rsync \
+    ruby \
+    subversion \
+    sudo \
+    unzip \
+    virtualenv \
+    xsltproc \
+    zip \
+    && \
+    apt-get clean
+
+RUN rm /etc/apt/apt.conf.d/docker-clean
+RUN mkdir /etc/ansible/
+RUN /bin/echo -e "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
+RUN locale-gen en_US.UTF-8
+RUN ssh-keygen -q -t rsa -N '' -f /root/.ssh/id_rsa && \
+    cp /root/.ssh/id_rsa.pub /root/.ssh/authorized_keys && \
+    for key in /etc/ssh/ssh_host_*_key.pub; do echo "localhost $(cat ${key})" >> /root/.ssh/known_hosts; done
+VOLUME /sys/fs/cgroup /run/lock /run /tmp
+RUN pip3 install junit-xml python3-keyczar
+ENV container=docker
+CMD ["/sbin/init"]

test/utils/shippable/integration.sh

@@ -7,6 +7,7 @@ test_privileged="${PRIVILEGED:-false}"
 test_flags="${TEST_FLAGS:-}"
 test_target="${TARGET:-}"
 test_ansible_dir="${TEST_ANSIBLE_DIR:-/root/ansible}"
+test_python3="${PYTHON3:-}"
 
 http_image="${HTTP_IMAGE:-ansible/ansible:httptester}"
 
@@ -85,12 +86,26 @@ container_id=$(docker run -d \
 
 show_environment
 
+if [ "${test_python3}" ]; then
+    docker exec "${container_id}" ln -s /usr/bin/python3 /usr/bin/python
+    docker exec "${container_id}" ln -s /usr/bin/pip3 /usr/bin/pip
+
+    skip_tags=$(tr '\n' ',' < "${source_root}/test/utils/shippable/python3-test-tag-blacklist.txt")
+    test_flags="--skip-tags ${skip_tags} ${test_flags}"
+fi
+
 docker exec "${container_id}" pip install jmespath
 
 if [ "${copy_source}" ]; then
     docker exec "${container_id}" cp -a "${test_shared_dir}" "${test_ansible_dir}"
 fi
 
+if [ "${test_python3}" ]; then
+    docker exec "${container_id}" sed -i -f \
+        "${test_ansible_dir}/test/utils/shippable/python3-test-target-blacklist.txt" \
+        "${test_ansible_dir}/test/integration/Makefile"
+fi
+
 docker exec "${container_id}" mkdir -p "${test_shared_dir}/shippable/testresults"
 docker exec "${container_id}" /bin/sh -c "cd '${test_ansible_dir}' && . hacking/env-setup && cd test/integration && \
     JUNIT_OUTPUT_DIR='${test_shared_dir}/shippable/testresults' ANSIBLE_CALLBACK_WHITELIST=junit \

test/utils/shippable/python3-test-tag-blacklist.txt

@@ -0,0 +1,44 @@
+test_apache2_module
+test_apt
+test_apt_repository
+test_assemble
+test_async
+test_authorized_key
+test_become
+test_binary
+test_changed_when
+test_command_shell
+test_conditionals
+test_copy
+test_embedded_module
+test_facts_d
+test_failed_when
+test_fetch
+test_file
+test_filters
+test_gem
+test_get_url
+test_git
+test_good_parsing
+test_handlers
+test_hg
+test_iterators
+test_lineinfile
+test_lookups
+test_mysql_db
+test_mysql_user
+test_mysql_variables
+test_pip
+test_postgresql
+test_service
+test_special_vars
+test_stat
+test_subversion
+test_sudo
+test_synchronize
+test_task_ordering
+test_template
+test_unarchive
+test_until
+test_uri
+test_var_blending

test/utils/shippable/python3-test-target-blacklist.txt

@@ -0,0 +1,14 @@
+s/ check_mode / /
+s/ environment / /
+s/ includes / /
+s/ no_log / /
+s/ pull / /
+s/ test_async_conditional / /
+s/ test_binary_modules$/ /
+s/ test_connection / /
+s/ test_handlers / /
+s/ test_hash / /
+s/ test_lookup_paths / /
+s/ test_var_precedence / /
+s/ test_vault / /
+s/ unicode / /