make contextDir configurable

{{cookiecutter.project_slug}}/templates/{{cookiecutter.template_base_name}}/buildconfig.yaml

@@ -26,10 +26,10 @@ spec:
     sourceSecret:
       name: k8sgitlab
     {%- if stages %}{% raw %}{{- if eq $stage "staging" }}{% endraw %}{% endif %}
-    contextDir: "docker/{{ cookiecutter.template_base_name }}"
+    contextDir: "{% raw %}{{ $.Values.contextDir }}{% endraw %}"
     {%- if stages %}
     {% raw %}{{- else if eq $stage "test" }}{% endraw %}
-    contextDir: "docker/{{ cookiecutter.template_base_name }}/tests"
+    contextDir: "{% raw %}{{ $.Values.testContextDir }}{% endraw %}"
     {% raw %}{{- end }}{% endraw %}
     {% raw %}{{- else }}{% endraw %}
     dockerfile: |

{{cookiecutter.project_slug}}/values.yaml

@@ -68,6 +68,16 @@ buildTriggers: []
 # - imageChange: {}
 #   type: ImageChange
 
+# directory in the git repository where the Dockerfile is located
+contextDir: "docker/{{ cookiecutter.template_base_name }}"
+
+{%- if cookiecutter.include_build_test_stage == "yes" %}
+
+# directory in the git repository where the Dockerfile for the test setup is 
+# located
+testContextDir: "docker/{{ cookiecutter.template_base_name }}/tests"
+{%- endif %}
+
 {%- if cookiecutter.include_build_test_stage == "yes" %}
 
 # testStagePostCommit contains the command to run when the image from the