Add driver_cert wrapper for cinder

This adds a simple wrapper to call tempest volume tests.
The idea is to make it easy to execute and capture results
from tempest.api.volume.test_*

Concept is for drivers in Cinder to configure cinder.conf as
needed and then run this script which will restart services and
kick off the tempest tests, and capture the output to a logfile
for submission.

To run,
1. deploy devstack as normal with tempest included in enabled_services
2. modify cinder.conf appropriately for your driver
3. execute the script devstack/driver_certs/cinder_driver_cert.sh

Change-Id: I98ec9e1e418a8416406db5e2e6ffd21992e392cf

driver_certs/cinder_driver_cert.sh

@@ -0,0 +1,87 @@
+#!/usr/bin/env bash
+
+# **cinder_cert.sh**
+
+CERT_DIR=$(cd $(dirname "$0") && pwd)
+TOP_DIR=$(cd $CERT_DIR/..; pwd)
+
+source $TOP_DIR/functions
+source $TOP_DIR/stackrc
+source $TOP_DIR/openrc
+source $TOP_DIR/lib/tempest
+source $TOP_DIR/lib/cinder
+
+TEMPFILE=`mktemp`
+RECLONE=True
+
+function log_message() {
+    MESSAGE=$1
+    STEP_HEADER=$2
+    if [[ "$STEP_HEADER" = "True" ]]; then
+        echo -e "\n========================================================" | tee -a $TEMPFILE
+    fi
+    echo -e `date +%m/%d/%y/%T:`"${MESSAGE}" | tee -a $TEMPFILE
+    if [[ "$STEP_HEADER" = "True" ]]; then
+        echo -e "========================================================" | tee -a $TEMPFILE
+    fi
+}
+
+if [[ "$OFFLINE" = "True" ]]; then
+    echo "ERROR: Driver cert requires fresh clone/pull from ${CINDER_BRANCH}"
+    echo "       Please set OFFLINE=False and retry."
+    exit 1
+fi
+
+log_message "RUNNING CINDER DRIVER CERTIFICATION CHECK", True
+log_message "Output is being logged to: $TEMPFILE"
+
+cd $CINDER_DIR
+log_message "Cloning to ${CINDER_REPO}...", True
+install_cinder
+
+log_message "Pull a fresh Clone of cinder repo...", True
+git status | tee -a $TEMPFILE
+git log --pretty=oneline -n 1 | tee -a $TEMPFILE
+
+log_message "Gathering copy of cinder.conf file (passwords will be scrubbed)...", True
+cat /etc/cinder/cinder.conf | egrep -v "(^#.*|^$)" | tee -a $TEMPFILE
+sed -i "s/\(.*password.*=\).*$/\1 xxx/i" $TEMPFILE
+log_message "End of cinder.conf.", True
+
+cd $TOP_DIR
+# Verify tempest is installed/enabled
+if ! is_service_enabled tempest; then
+    log_message "ERROR!!! Cert requires tempest in enabled_services!", True
+    log_message"       Please add tempest to enabled_services and retry."
+    exit 1
+fi
+
+cd $TEMPEST_DIR
+install_tempest
+
+log_message "Verify tempest is current....", True
+git status | tee -a $TEMPFILE
+log_message "Check status and get latest commit..."
+git log --pretty=oneline -n 1 | tee -a $TEMPFILE
+
+
+#stop and restart cinder services
+log_message "Restart Cinder services...", True
+stop_cinder
+sleep 1
+start_cinder
+sleep 5
+
+# run tempest api/volume/test_*
+log_message "Run the actual tempest volume tests (run_tests.sh -N tempest.api.volume.test_*)...", True
+exec 2> >(tee -a $TEMPFILE)
+`./run_tests.sh -N tempest.api.volume.test_*`
+if [[ $? = 0 ]]; then
+    log_message "CONGRATULATIONS!!!  Device driver PASSED!", True
+    log_message "Submit output: ($TEMPFILE)"
+    exit 0
+else
+    log_message "SORRY!!!  Device driver FAILED!", True
+    log_message "Check output in $TEMPFILE"
+    exit 1
+fi