diff --git a/run_tests.sh b/run_tests.sh
index 98756adf2a35..eef667aee907 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -2,251 +2,41 @@
 
 set -eu
 
-function usage {
-  echo "Usage: $0 [OPTION]..."
-  echo "Run Nova's test suite(s)"
-  echo ""
-  echo "  -V, --virtual-env           Always use virtualenv.  Install automatically if not present"
-  echo "  -N, --no-virtual-env        Don't use virtualenv.  Run tests in local environment"
-  echo "  -s, --no-site-packages      Isolate the virtualenv from the global Python environment"
-  echo "  -f, --force                 Force a clean re-build of the virtual environment. Useful when dependencies have been added."
-  echo "  -u, --update                Update the virtual environment with any newer package versions"
-  echo "  -p, --pep8                  Just run PEP8 and HACKING compliance check"
-  echo "  -8, --pep8-only-changed     Just run PEP8 and HACKING compliance check on files changed since HEAD~1"
-  echo "  -P, --no-pep8               Don't run static code checks"
-  echo "  -c, --coverage              Generate coverage report"
-  echo "  -d, --debug                 Run tests with testtools instead of testr. This allows you to use the debugger."
-  echo "  -h, --help                  Print this usage message"
-  echo "  --hide-elapsed              Don't print the elapsed time for each test along with slow test list"
-  echo "  --virtual-env-path <path>   Location of the virtualenv directory"
-  echo "                               Default: \$(pwd)"
-  echo "  --virtual-env-name <name>   Name of the virtualenv directory"
-  echo "                               Default: .venv"
-  echo "  --tools-path <dir>          Location of the tools directory"
-  echo "                               Default: \$(pwd)"
-  echo "  --concurrency <concurrency> How many processes to use when running the tests. A value of 0 autodetects concurrency from your CPU count"
-  echo "                               Default: 0"
-  echo ""
-  echo "Note: with no options specified, the script will try to run the tests in a virtual environment,"
-  echo "      If no virtualenv is found, the script will ask if you would like to create one.  If you "
-  echo "      prefer to run tests NOT in a virtual environment, simply pass the -N option."
-  exit
-}
+cat <<EOF
+run_tests.sh is deprecated and this script will be removed
+before the Mitaka release. All tests should be run through
+tox.
 
-function process_options {
-  i=1
-  while [ $i -le $# ]; do
-    case "${!i}" in
-      -h|--help) usage;;
-      -V|--virtual-env) always_venv=1; never_venv=0;;
-      -N|--no-virtual-env) always_venv=0; never_venv=1;;
-      -s|--no-site-packages) no_site_packages=1;;
-      -f|--force) force=1;;
-      -u|--update) update=1;;
-      -p|--pep8) just_pep8=1;;
-      -8|--pep8-only-changed) just_pep8_changed=1;;
-      -P|--no-pep8) no_pep8=1;;
-      -c|--coverage) coverage=1;;
-      -d|--debug) debug=1;;
-      --virtual-env-path)
-        (( i++ ))
-        venv_path=${!i}
-        ;;
-      --virtual-env-name)
-        (( i++ ))
-        venv_dir=${!i}
-        ;;
-      --tools-path)
-        (( i++ ))
-        tools_path=${!i}
-        ;;
-      --concurrency)
-        (( i++ ))
-        concurrency=${!i}
-        ;;
-      -*) testropts="$testropts ${!i}";;
-      *) testrargs="$testrargs ${!i}"
-    esac
-    (( i++ ))
-  done
-}
+To run style checks:
 
-tool_path=${tools_path:-$(pwd)}
-venv_path=${venv_path:-$(pwd)}
-venv_dir=${venv_name:-.venv}
-with_venv=tools/with_venv.sh
-always_venv=0
-never_venv=0
-force=0
-no_site_packages=0
-installvenvopts=
-testrargs=
-testropts=
-wrapper=""
-just_pep8=0
-just_pep8_changed=0
-no_pep8=0
-coverage=0
-debug=0
-update=0
-concurrency=0
+ tox -e pep8
 
-LANG=en_US.UTF-8
-LANGUAGE=en_US:en
-LC_ALL=C
+To run python 2.7 unit tests
 
-process_options $@
-# Make our paths available to other scripts we call
-export venv_path
-export venv_dir
-export venv_name
-export tools_dir
-export venv=${venv_path}/${venv_dir}
+ tox -e py27
 
-if [ $no_site_packages -eq 1 ]; then
-  installvenvopts="--no-site-packages"
-fi
+To run functional tests
 
-function run_tests {
-  # Cleanup *pyc
-  ${wrapper} find . -type f -name "*.pyc" -delete
+ tox -e functional
 
-  if [ $debug -eq 1 ]; then
-    if [ "$testropts" = "" ] && [ "$testrargs" = "" ]; then
-      # Default to running all tests if specific test is not
-      # provided.
-      testrargs="discover ./nova/tests/unit"
-    fi
-    ${wrapper} python -m testtools.run $testropts $testrargs
+To run a subset of any of these tests:
 
-    # Short circuit because all of the testr and coverage stuff
-    # below does not make sense when running testtools.run for
-    # debugging purposes.
-    return $?
-  fi
+ tox -e py27 someregex
 
-  if [ $coverage -eq 1 ]; then
-    TESTRTESTS="$TESTRTESTS --coverage"
-  else
-    TESTRTESTS="$TESTRTESTS"
-  fi
+ i.e.: tox -e py27 test_servers
 
-  # Just run the test suites in current environment
-  set +e
-  testrargs=`echo "$testrargs" | sed -e's/^\s*\(.*\)\s*$/\1/'`
-  TESTRTESTS="$TESTRTESTS --testr-args='--subunit --concurrency $concurrency $testropts $testrargs'"
-  if [ setup.cfg -nt nova.egg-info/entry_points.txt ]
-  then
-    ${wrapper} python setup.py egg_info
-  fi
-  echo "Running \`${wrapper} $TESTRTESTS\`"
-  if ${wrapper} which subunit-2to1 >/dev/null 2>&1
-  then
-    # subunit-2to1 is present, testr subunit stream should be in version 2
-    # format. Convert to version one before colorizing.
-    bash -c "${wrapper} $TESTRTESTS | ${wrapper} subunit-2to1 | ${wrapper} tools/colorizer.py"
-  else
-    bash -c "${wrapper} $TESTRTESTS | ${wrapper} tools/colorizer.py"
-  fi
-  RESULT=$?
-  set -e
+Additional tox targets are available in tox.ini. For more information
+see:
+http://docs.openstack.org/infra/manual/python.html#running-python-unit-tests
 
-  copy_subunit_log
+NOTE: if you really really don't want to use tox to run tests, you
+can instead use:
 
-  if [ $coverage -eq 1 ]; then
-    echo "Generating coverage report in covhtml/"
-    # Don't compute coverage for common code, which is tested elsewhere
-    ${wrapper} coverage combine
-    ${wrapper} coverage html --include='nova/*' --omit='nova/openstack/common/*' -d covhtml -i
-  fi
+ testr run
 
-  return $RESULT
-}
+Documentation on using testr directly can be found at
+http://testrepository.readthedocs.org/en/latest/MANUAL.html
 
-function copy_subunit_log {
-  LOGNAME=`cat .testrepository/next-stream`
-  LOGNAME=$(($LOGNAME - 1))
-  LOGNAME=".testrepository/${LOGNAME}"
-  cp $LOGNAME subunit.log
-}
+EOF
 
-function warn_on_flake8_without_venv {
-  if [ $never_venv -eq 1 ]; then
-    echo "**WARNING**:"
-    echo "Running flake8 without virtual env may miss OpenStack HACKING detection"
-  fi
-}
-
-function run_pep8 {
-  echo "Running flake8 ..."
-  warn_on_flake8_without_venv
-  bash -c "${wrapper} flake8"
-}
-
-
-TESTRTESTS="python setup.py testr"
-
-if [ $never_venv -eq 0 ]
-then
-  # Remove the virtual environment if --force used
-  if [ $force -eq 1 ]; then
-    echo "Cleaning virtualenv..."
-    rm -rf ${venv}
-  fi
-  if [ $update -eq 1 ]; then
-      echo "Updating virtualenv..."
-      python tools/install_venv.py $installvenvopts
-  fi
-  if [ -e ${venv} ]; then
-    wrapper="${with_venv}"
-  else
-    if [ $always_venv -eq 1 ]; then
-      # Automatically install the virtualenv
-      python tools/install_venv.py $installvenvopts
-      wrapper="${with_venv}"
-    else
-      echo -e "No virtual environment found...create one? (Y/n) \c"
-      read use_ve
-      if [ "x$use_ve" = "xY" -o "x$use_ve" = "x" -o "x$use_ve" = "xy" ]; then
-        # Install the virtualenv and run the test suite in it
-        python tools/install_venv.py $installvenvopts
-        wrapper=${with_venv}
-      fi
-    fi
-  fi
-fi
-
-# Delete old coverage data from previous runs
-if [ $coverage -eq 1 ]; then
-    ${wrapper} coverage erase
-fi
-
-if [ $just_pep8 -eq 1 ]; then
-    run_pep8
-    exit
-fi
-
-if [ $just_pep8_changed -eq 1 ]; then
-    # NOTE(gilliard) We want use flake8 to check the entirety of every file that has
-    # a change in it. Unfortunately the --filenames argument to flake8 only accepts
-    # file *names* and there are no files named (eg) "nova/compute/manager.py".  The
-    # --diff argument behaves surprisingly as well, because although you feed it a
-    # diff, it actually checks the file on disk anyway.
-    files=$(git diff --name-only HEAD~1 | tr '\n' ' ')
-    echo "Running flake8 on ${files}"
-    warn_on_flake8_without_venv
-    bash -c "diff -u --from-file /dev/null ${files} | ${wrapper} flake8 --diff"
-    exit
-fi
-
-run_tests
-
-# NOTE(sirp): we only want to run pep8 when we're running the full-test suite,
-# not when we're running tests individually. To handle this, we need to
-# distinguish between options (testropts), which begin with a '-', and
-# arguments (testrargs).
-if [ -z "$testrargs" ]; then
-  if [ $no_pep8 -eq 0 ]; then
-    run_pep8
-  fi
-fi
+exit 1