Fix logic in idempotency tests in CI (#1722)

.gitlab-ci.yml

@@ -215,7 +215,7 @@ before_script:
 
     ## Idempotency checks 3/5 (reset deployment)
     - >
-      if [ "${IDEMPOT_CHECK}" = "true" AND "${RESET_CHECK}" = "true" ]; then
+      if [ "${IDEMPOT_CHECK}" = "true" -a "${RESET_CHECK}" = "true" ]; then
       ansible-playbook -i inventory/inventory.ini -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS
       -b --become-user=root -e cloud_provider=gce $LOG_LEVEL -e kube_network_plugin=${KUBE_NETWORK_PLUGIN}
       --private-key=${HOME}/.ssh/id_rsa
@@ -229,7 +229,7 @@ before_script:
 
     ## Idempotency checks 4/5 (redeploy after reset)
     - >
-      if [ "${IDEMPOT_CHECK}" = "true" AND "${RESET_CHECK}" = "true" ]; then
+      if [ "${IDEMPOT_CHECK}" = "true" -a "${RESET_CHECK}" = "true" ]; then
       ansible-playbook -i inventory/inventory.ini -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS
       -b --become-user=root -e cloud_provider=gce $LOG_LEVEL -e kube_network_plugin=${KUBE_NETWORK_PLUGIN}
       --private-key=${HOME}/.ssh/id_rsa
@@ -255,7 +255,7 @@ before_script:
 
     ## Idempotency checks 5/5 (Advanced DNS checks)
     - >
-      if [ "${IDEMPOT_CHECK}" = "true" AND "${RESET_CHECK}" = "true" ]; then
+      if [ "${IDEMPOT_CHECK}" = "true" -a "${RESET_CHECK}" = "true" ]; then
       ansible-playbook -i inventory/inventory.ini -e ansible_python_interpreter=${PYPATH}
       -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS -b --become-user=root
       --limit "all:!fake_hosts"