fix pipeline conditions

Change-Id: I9671ba0b4f2040031687c89b84c8f6a5a852cfaf
diff --git a/mk-lab-pipeline.groovy b/mk-lab-pipeline.groovy
index d59ef52..3988074 100644
--- a/mk-lab-pipeline.groovy
+++ b/mk-lab-pipeline.groovy
@@ -52,7 +52,7 @@
         git.checkoutGitRepository('template', HEAT_TEMPLATE_URL, HEAT_TEMPLATE_BRANCH, HEAT_TEMPLATE_CREDENTIALS)
     }
 
-    stage('Install OpenStack cli') {
+    stage('Install OpenStack CLI') {
         openstack.setupOpenstackVirtualenv(openstackEnv, openstackVersion)
     }
 
@@ -85,7 +85,7 @@
         salt.validateFoundationInfra(saltMaster)
     }
 
-    if (INSTALL_K8S) {
+    if (INSTALL_K8S == true) {
         stage("Install Kubernetes infra") {
             salt.installOpenstackMcpInfra(saltMaster)
         }
@@ -94,14 +94,14 @@
             salt.installOpenstackMcpControl(saltMaster)
         }
 
-        if (K8S_RUN_CONFORMANCE_TESTS) {
+        if (K8S_RUN_CONFORMANCE_TESTS == true) {
             stage("Run k8s conformance e2e tests") {
                 salt.runConformanceTests(saltMaster, K8S_API_SERVER, K8S_CONFORMANCE_IMAGE)
             }
         }
     }
 
-    if (INSTALL_OPENSTACK) {
+    if (INSTALL_OPENSTACK == true) {
         // install Infra and control, tests, ...
 
         stage("Install OpenStack infra") {
@@ -121,7 +121,7 @@
         }
     }
 
-    if (HEAT_STACK_DELETE) {
+    if (HEAT_STACK_DELETE == true) {
         stage('Trigger cleanup job') {
             build job: 'deploy_heat_cleanup', parameters: [[$class: 'StringParameterValue', name: 'HEAT_STACK_NAME', value: HEAT_STACK_NAME]]
         }