Merge branch 'T25422_failure_retry' into 'collabora/production'

Add a way to customize failure_retry variable

See merge request !10

etc/dispatcher-config/device-types/base.jinja2

@@ -147,6 +147,9 @@ constants:
   # avoid setting searchwindowsize:
   # Data before searchwindowsize point is preserved, but not searched.
   spawn_maxread: '{{ spawn_maxread | default(4092) }}'
+
+  # Set the failure retry to default or override it
+  failure_retry: {{ failure_retry|default('1') }}
 {% endblock constants -%}
 
 {% block commands %}

lava_common/schemas/__init__.py

@@ -75,6 +75,7 @@ CONTEXT_VARIABLES = [
     "custom_kernel_args",
     "extra_kernel_args",
     "extra_nfsroot_args",
+    "failure_retry",
     "kernel_loglevel",
     "kernel_start_message",
     "lava_test_results_dir",

lava_dispatcher/action.py

@@ -142,6 +142,9 @@ class Pipeline:
             subdict_merge_get(timeouts, "connections", action.name)
         )
 
+        # retrieve the failure_retry constant variable
+        action.max_retries = action.get_constant("failure_retry", "")
+
         action.parameters = parameters
 
     def describe(self, verbose=True):