Add ability to run branch-specific trace files.

Pass the travis branch to run_regression_tests.sh. When downloading
trace files, first look for a file traces-XXX-$BRANCH and if found
download it. This allows testing out a set of changes with a trace file
specifically for that branch, that can be moved to the normal file once
the PR is merged.

Also increase the timeout for the spawned falco process from 1 to 3
minutes. In debug mode, the kubernetes demo was taking slightly over 1
minute.

.travis.yml

@@ -36,11 +36,11 @@ script:
     - make VERBOSE=1
     - make package
     - cd ..
-    - sudo test/run_regression_tests.sh
+    - sudo test/run_regression_tests.sh $TRAVIS_BRANCH
 notifications:
   webhooks:
     urls:
 #      - https://webhooks.gitter.im/e/fdbc2356fb0ea2f15033
     on_success: change
     on_failure: always
-    on_start: never
+    on_start: never

test/falco_test.py

@@ -42,7 +42,7 @@ def test(self):
 
         self.falco_proc = process.SubProcess(cmd)
 
-        res = self.falco_proc.run(timeout=60, sig=9)
+        res = self.falco_proc.run(timeout=180, sig=9)
 
         if res.exit_status != 0:
             self.error("Falco command \"{}\" exited with non-zero return value {}".format(

test/run_regression_tests.sh

@@ -3,11 +3,13 @@
 SCRIPT=$(readlink -f $0)
 SCRIPTDIR=$(dirname $SCRIPT)
 MULT_FILE=$SCRIPTDIR/falco_tests.yaml
+BRANCH=$1
 
 function download_trace_files() {
+    echo "branch=$BRANCH"
     for TRACE in traces-positive traces-negative traces-info ; do
 	rm -rf $SCRIPTDIR/$TRACE
-	curl -so $SCRIPTDIR/$TRACE.zip https://s3.amazonaws.com/download.draios.com/falco-tests/$TRACE.zip &&
+	curl -fso $SCRIPTDIR/$TRACE.zip https://s3.amazonaws.com/download.draios.com/falco-tests/$TRACE-$BRANCH.zip || curl -fso $SCRIPTDIR/$TRACE.zip https://s3.amazonaws.com/download.draios.com/falco-tests/$TRACE.zip &&
 	unzip -d $SCRIPTDIR $SCRIPTDIR/$TRACE.zip &&
 	rm -rf $SCRIPTDIR/$TRACE.zip
     done