add optional hammerdb benchmark job

.circleci/config.yml

@@ -234,12 +234,34 @@ jobs:
            install-and-test-ext --target check-citus-upgrade-mixed --citus-pre-tar /install-pg11-citusv8.3.0.tar
           no_output_timeout: 2m
 
-
+  ch_benchmark:
+    docker:
+      - image: buildpack-deps:trusty
+    working_directory: /home/circleci/project  
+    steps:
+      - azure-cli/install
+      - azure-cli/login-with-service-principal
+      - checkout
+      - run:
+          command: |
+            cd ./src/test/hammerdb
+            sh run_hammerdb.sh ch_benchmark
+          name: install dependencies and run ch_benchmark tests
+          no_output_timeout: 40m    
 
 
 
 workflows:
   version: 2
+
+  performance_tests:
+    jobs:
+      - ch_benchmark:
+          filters:
+            branches:
+              only:
+                - /ch_benchmark\/.*/ # match with ch_benchmark/ prefix
+
   build_and_test:
     jobs:
       - build

src/test/hammerdb/run_hammerdb.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# fail if trying to reference a variable that is not set.
+set -u
+# exit immediately if a command fails
+set -e
+
+rg=$1
+
+export RESOURCE_GROUP_NAME="${rg}"
+export AZURE_REGION=westus2
+# the branch name is stored in CIRCLE_BRANCH env variable in CI jobs.
+export BRANCH="${CIRCLE_BRANCH}"
+git clone https://github.com/citusdata/test-automation.git
+cd test-automation
+
+test_automation_dir=$(pwd)
+# add the ssh keys
+eval `ssh-agent -s`
+ssh-add
+
+ssh-keygen -y -f ~/.ssh/id_rsa > ~/.ssh/id_rsa.pub
+
+now=$(date +"%m_%d_%Y_%s")
+new_branch_name=delete_me/"${rg}"/"${now}"
+git checkout -b "${new_branch_name}"
+
+cd ./fabfile/hammerdb_confs
+branch_config="${BRANCH}".ini
+# create a config for this branch
+cp master.ini "${branch_config}"
+# put the branch name to the config file.
+sed -i "s/master/${BRANCH}/g" "${branch_config}"
+
+# TODO:: change this, for testing purposes.
+sed -i "s/pg_duration 200/pg_duration 10/g" run.tcl
+
+git add -A
+git commit -m "test hammerdb: ${rg} vs master"
+git push origin "${new_branch_name}"
+
+cd "${test_automation_dir}"
+cd ./hammerdb
+
+# create cluster and run the hammerd benchmark
+./create-run.sh
+
+