Introduce logic for optional variables.

This will ensure variables marked as "Optional" are not checked in step "Check for required secrets"

Author: rhopp

templates/source-repo/build-and-update-gitops.yml.njk

@@ -57,12 +57,14 @@ jobs:
             const vars = {
               IMAGE_REGISTRY: `${{ "vars.IMAGE_REGISTRY" | inCurlies }}`,
 {% for var in build_variables %}
-{%- if var | eval_if_condition %}
-{%- if var.comment %}
+  {%- if var | eval_if_condition %}
+    {%- if not var.optional %}
+      {%- if var.comment %}
               /* {{ var.comment }} */
       {%- endif %}
               {% if var.commented_out %}/* {% endif %}{{ var.name }}: `${{ ("vars." + var.name) | inCurlies }}`,{% if var.commented_out %} */{% endif %}
-{%- endif %}
+    {%- endif %}
+  {%- endif %}
 {%- endfor %}
             };