Have smoketests output representative samples of metrics.

Future: build the current master and produce a comparison.

Author: wrouesnel

.gitignore

@@ -8,4 +8,4 @@ postgres_exporter_integration_test
 *.iml
 cover.out
 cover.*.out
-
+*.prom

tests/test-smoke

@@ -9,6 +9,8 @@ while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symli
 done
 DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
 
+METRICS_DIR=$(pwd)
+
 # Read the absolute path to the exporter
 postgres_exporter=$(readlink -f $1)
 test_binary=$(readlink -f $2)
@@ -80,20 +82,24 @@ smoketest_postgres() {
  trap "docker logs $CONTAINER_NAME ; docker kill $CONTAINER_NAME ; docker rm -v $CONTAINER_NAME; exit 1" EXIT INT TERM
  wait_for_postgres localhost 55432
 
+ # Run the test binary.
  DATA_SOURCE_NAME="postgresql://postgres:$POSTGRES_PASSWORD@localhost:55432/?sslmode=disable" $test_binary --log.level=debug || exit $?
 
-# exporter_pid=$!
-# trap "docker logs $CONTAINER_NAME ; docker kill $CONTAINER_NAME ; docker rm $CONTAINER_NAME ; kill $exporter_pid; exit 1" EXIT INT TERM
-# wait_for_exporter
-#
-# wget -q -O - http://localhost:$exporter_port/metrics 1> /dev/null
-# if [ "$?" != "0" ]; then
-# echo "Failed on postgres $version ($DOCKER_IMAGE)" 1>&2
-# kill $exporter_pid
-# exit 1
-# fi
-#
-# kill $exporter_pid
+ # Extract a raw metric list.
+ DATA_SOURCE_NAME="postgresql://postgres:$POSTGRES_PASSWORD@localhost:55432/?sslmode=disable" $postgres_exporter --log.level=debug --web.listen-address=:$exporter_port &
+ exporter_pid=$!
+ trap "docker logs $CONTAINER_NAME ; docker kill $CONTAINER_NAME ; docker rm -v $CONTAINER_NAME; kill $exporter_pid; exit 1" EXIT INT TERM
+ wait_for_exporter
+
+ # Dump the metrics to a file.
+ wget -q -O - http://localhost:$exporter_port/metrics 1> $METRICS_DIR/.metrics.single.$version.prom
+ if [ "$?" != "0" ]; then
+ echo "Failed on postgres $version ($DOCKER_IMAGE)" 1>&2
+ kill $exporter_pid
+ exit 1
+ fi
+
+ kill $exporter_pid
  docker kill $CONTAINER_NAME
  docker rm -v $CONTAINER_NAME
  trap - EXIT INT TERM
@@ -123,18 +129,19 @@ smoketest_postgres() {
  wait_for_postgres $slave_ip 5432
 
  DATA_SOURCE_NAME="postgresql://postgres:$POSTGRES_PASSWORD@$master_ip:5432/?sslmode=disable" $test_binary --log.level=debug || exit $?
-# exporter_pid=$!
-# trap "docker-compose logs; docker-compose down ; docker-compose rm -v ; kill $exporter_pid; exit 1" EXIT INT TERM
-# wait_for_exporter
-
-# wget -q -O - http://localhost:$exporter_port/metrics 1> /dev/null
-# if [ "$?" != "0" ]; then
-# echo "Failed on postgres $version ($DOCKER_IMAGE)" 1>&2
-# exit 1
-# fi
-#
-# kill $exporter_pid
 
+ DATA_SOURCE_NAME="postgresql://postgres:$POSTGRES_PASSWORD@$master_ip:5432/?sslmode=disable" $postgres_exporter --log.level=debug --web.listen-address=:$exporter_port &
+ exporter_pid=$!
+ trap "docker-compose logs; docker-compose down ; docker-compose rm -v ; kill $exporter_pid; exit 1" EXIT INT TERM
+ wait_for_exporter
+
+ wget -q -O - http://localhost:$exporter_port/metrics 1> $METRICS_DIR/.metrics.replicated.$version.prom
+ if [ "$?" != "0" ]; then
+ echo "Failed on postgres $version ($DOCKER_IMAGE)" 1>&2
+ exit 1
+ fi
+
+ kill $exporter_pid 
  docker-compose down
  docker-compose rm -v
  trap - EXIT INT TERM