Pass in debug config for all auto-bazel jobsteps.

Reviewers: kylec, naphat

Reviewed By: naphat

Subscribers: changesbot, wwu, naphat

Differential Revision: https://tails.corp.dropbox.com/D231924

changes/config.py

@@ -462,6 +462,9 @@ def create_app(_read_config=True, **config):
 
     app.config['SELECTIVE_TESTING_PROPAGATION_LIMIT'] = 30
 
+    # Debug config entries passed to every autobazel jobstep
+    app.config['BAZEL_DEBUG_CONFIG'] = {}
+
     # Jobsteps go from 'pending_allocation' to 'allocated' once an external scheduler claims them, and
     # once they begin running they're updated to 'in_progress'. If the scheduler somehow fails or drops
     # the task, this value is used to time out the 'allocated' status and revert back to 'pending_allocation'.

changes/models/jobplan.py

@@ -232,6 +232,9 @@ def get_build_step_for_job(cls, job_id):
             bazel_test_flags = current_app.config['BAZEL_MANDATORY_TEST_FLAGS'] + additional_test_flags
             bazel_test_flags = list(OrderedDict([(b, None) for b in bazel_test_flags]))  # ensure uniqueness, preserve order
 
+            # TODO(anupc): Does it make sense to expose this in project config?
+            bazel_debug_config = current_app.config['BAZEL_DEBUG_CONFIG']
+
             vcs = job.project.repository.get_vcs()
             implementation = LXCBuildStep(
                 cluster=current_app.config['DEFAULT_CLUSTER'],
@@ -259,6 +262,7 @@ def get_build_step_for_job(cls, job_id):
                 cpus=bazel_cpus,
                 memory=bazel_memory,
                 max_executors=bazel_max_executors,
+                debug_config=bazel_debug_config,
             )
             return jobplan, implementation