Add SNI support via OS packages

Some Linux distributions, such as CentOS 7 and Xenial, have trouble
validating SSL certificates when using get_url with servers
that use Server Name Indication (SNI).

This patch adds those packages to the list of required packages and
uses bindep to install them in developer test environments the same
way that the gate tests install them.

Change-Id: Icc352315a39d65af1c98039580ad23aad6476d85

bindep.txt

@@ -10,11 +10,35 @@
 # will fall back to installing its default packages which
 # will potentially be detrimental to the tests executed.
 
+# Base requirements for Ubuntu
+build-essential   [platform:dpkg]
+git-core          [platform:dpkg]
+libssl-dev        [platform:dpkg]
+libffi-dev        [platform:dpkg]
+python2.7         [platform:dpkg]
+python-dev        [platform:dpkg]
+
+# Base requirements for CentOS
+gcc               [platform:rpm]
+gcc-c++           [platform:rpm]
+git               [platform:rpm]
+python-devel      [platform:rpm]
+libffi-devel      [platform:rpm]
+openssl-devel     [platform:rpm]
+
 # Requirements for Paramiko 2.0
 libssl-dev        [platform:dpkg]
 libffi-dev        [platform:dpkg]
 libffi-devel      [platform:rpm]
 openssl-devel     [platform:rpm]
 
-# For selinux
+# For SELinux
 libselinux-python [platform:rpm]
+
+# For SSL SNI support
+python-pyasn1               [platform:dpkg]
+python-openssl              [platform:dpkg]
+python-ndg-httpsclient      [platform:ubuntu !platform:ubuntu-trusty]
+python2-pyasn1              [platform:rpm]
+pyOpenSSL                   [platform:rpm]
+python-ndg_httpsclient      [platform:rpm]

run_tests.sh

@@ -17,23 +17,31 @@ set -euov
 
 FUNCTIONAL_TEST=${FUNCTIONAL_TEST:-true}
 
-# prep the host
-if [ "$(which apt-get)" ]; then
-  apt-get install -y build-essential python2.7 python-dev git-core libssl-dev libffi-dev
-fi
-
-if [ "$(which yum)" ]; then
-  yum install -y '@Development Tools' python-devel git libffi-devel openssl-devel
-fi
-
-# get pip, if necessary
+# Install pip
 if [ ! "$(which pip)" ]; then
   curl --silent --show-error --retry 5 \
     https://bootstrap.pypa.io/get-pip.py | sudo python2.7
 fi
 
-# install tox
-pip install tox
+# Install bindep and tox
+pip install bindep tox
+
+# CentOS 7 requires two additional packages:
+#   redhat-lsb-core - for bindep profile support
+#   epel-release    - required to install python-ndg_httpsclient/python2-pyasn1
+if [ "$(which yum)" ]; then
+    yum -y install redhat-lsb-core epel-release
+fi
+
+# Install OS packages using bindep
+if apt-get -v >/dev/null 2>&1 ; then
+    apt-get update
+    DEBIAN_FRONTEND=noninteractive \
+      apt-get -q --option "Dpkg::Options::=--force-confold" \
+      --assume-yes install `bindep -b -f bindep.txt test`
+else
+    yum install -y `bindep -b -f bindep.txt test`
+fi
 
 # run through each tox env and execute the test
 for tox_env in $(awk -F= '/envlist/ {print $2}' tox.ini | sed 's/,/ /g'); do