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Open-Falcon Backend

Open-Falcon

Build Status codecov GoDoc Join the chat at https://gitter.im/goappmonitor/Lobby Code Health Code Issues Go Report Card License

Documentations

Get Started

Start MySQL and Redis using docker

cd docker
docker-compose -f init.yml up -d
docker inspect docker_mysql_1
docker inspect docker_redis_1
cd ..

Change your environment setting

vi config/confgen.sh

Start Backend modules

make clean all pack
mkdir out
mv open-falcon-v2.0.0.tar.gz out/
cd out
tar zxvf open-falcon-v2.0.0.tar.gz
./open-falcon start agent graph transfer hbs fe query

Building from source

Binary

# all modules
make all

# specified module
make agent

Docker image

Use docker build at project root, for example:

docker build -t <image_name>:<image_tag> -f docker/alpine/Dockerfile .

Run Open-Falcon Commands

Agent for example:

./open-falcon agent [build|pack|start|stop|restart|status|tail]

Package Management

We use govendor to manage the golang packages. Please install govendor before compilation.

go get -u github.com/kardianos/govendor

Most depended packages are saved under ./vendor dir. If you want to add or update a package, just run govendor fetch xxxx@commitID or govendor fetch xxxx@v1.x.x, then you will find the package have been placed in ./vendor correctly.

Make sure you're using Go 1.5+ and GO15VENDOREXPERIMENT=1 env var is exported. (export GODEBUG=cgocheck=0 using Go 1.6+.)

Package Release

make clean all pack

Upgrading of MySql databases

See scripts/mysql/README.md

Testing

There are environment variables could be used to set-up properties for testing:

  • $OWL_TEST_PROPS_FILE - File name of properties
  • $OWL_TEST_PROPS - Property content as single string
  • $OWL_TEST_PROPS_SEP - Seperator to split record of property content in $OWL_TEST_PROPS

For example, you could use make go-test by:

OWL_TEST_PROPS="mysql.owl_portal=root:cepave@tcp(192.168.20.50:3306)/falcon_portal_test?parseTime=True&loc=Local" make go-test GO_TEST_VERBOSE=yes GO_TEST_FOLDER="modules/mysqlapi/rdb/owl"

Or use go test:

OWL_TEST_PROPS="mysql.owl_portal=root:cepave@tcp(192.168.20.50:3306)/falcon_portal_test?parseTime=True&loc=Local" go test ./modules/mysqlapi/rdb/owl -test.v

GOMAXPROCS(-parallel)

Since some tests(e.x. database unit test) are stateful, these tests should be run in single thread:

  1. GOMAXPROCS=<n> - By environment variable
  2. -parallel <n> - By test flags

See go help testflag for detail information.

Example:

OWL_TEST_PROPS="mysql.owl_portal=root:cepave@tcp(192.168.20.50:3306)/falcon_portal_test?parseTime=True&loc=Local mysql.graph=root:cepave@tcp(192.168.20.50:3306)/graph?parseTime=True&loc=Local"

# By $GOMAXPROCS
GOMAXPROCS=1 go test ./modules/mysqlapi/...

# By -parallel
go test -parallel 1 ./modules/mysqlapi/...

By using make go-test

Variables:

  • GO_TEST_FOLDER - The inclusions of folders(recursively probed) to be tested
  • GO_TEST_EXCLUDE - The exclusions of folders(include children), which are descendants of GO_TEST_FOLDER
  • GO_TEST_PROPS_FILE - If the value is viable, the execution of "go test" would have additional arguments -owl.test.propfile=<GO_TEST_PROPS_FILE>
  • GO_TEST_PROPS - If the value is viable, the execution of "go test" would have additional arguments -owl.test=<GO_TEST_PROPS>
  • GO_TEST_PROPS_SEP - If the value is viable, the execution of "go test" would have additional arguments -owl.test.sep=<GO_TEST_PROPS_SEP>
  • GO_TEST_FLAGS - If the value is viable, the execution of "go test" would have additional flags <flags...>
  • GO_TEST_VERBOSE - If the value is "yes", the execution of "go test -test.v"(with additional flags of 3-party frameworks) would be applied
  • GO_TEST_COVERAGE_FILE - If the value is viable, the execution of "go test" would be added with -coverprofile <file>
# Default execution
make go-test GO_TEST_FOLDER="modules common" GO_TEST_EXCLUDE="modules/fe modules/f2e-api"

# With MySql property and verbose output
make go-test GO_TEST_FOLDER="modules common" GO_TEST_EXCLUDE="modules/fe modules/f2e-api" GO_TEST_VERBOSE=yes GO_TEST_PROPS="mysql.owl_portal=root:cepave@tcp(192.168.20.50:3306)/falcon_portal_test?parseTime=True&loc=Local"

See Makefile for default values of the two variables.

In fact, the Makefile uses go-test-all.sh to perform go-test.

By using go-test-all.sh

This script would try to detect the importing of "common/testing/" in *_test.go files.

If the configuration is matched, this script would append -owl.test.propfile, -owl.test, or -owl.test.sep flags.

Arguments:

  • -t <folders> - The inclusions of folders(recursively probed) to be tested
  • -e <folders> - The exclusions of folders(include children), which are descendants of GO_TEST_FOLDER
  • -f <args> - If the value is viable, the execution of "go test" would have additional arguments -owl.test.propfile=<args>
  • -p <args> - If the value is viable, the execution of "go test" would have additional arguments -owl.test=<args>
  • -s <args> - If the value is viable, the execution of "go test" would have additional arguments -owl.test.sep=<args>
  • -a <flags> - If the value is viable, the execution of "go test" would have additional flags <flags>
  • -v - If this flag is shown, the execution of go test -test.v(with additional flags of 3-party frameworks) would be applied
  • -c <file> - If this flag is shown, the -coverprofile <file> would be set
# Default execution
./go-test-all.sh -t "modules common" -e "modules/fe modules/f2e-api"

# With MySql property and verbose output
./go-test-all.sh -t "modules common" -e "modules/fe modules/f2e-api" -v -p "mysql.owl_portal=root:cepave@tcp(192.168.20.50:3306)/falcon_portal_test?parseTime=True&loc=Local"

Usage of property file

Example of property file("sample.properties"):

mysql.owl_portal=root:cepave@tcp(192.168.20.50:3307)/falcon_portal
client.http.host=127.0.0.1
client.http.port=6040

Execute by go-test-all.sh:

OWL_TEST_PROPS_FILE="$PWD/sample.properties" ./go-test-all.sh -t "modules/mysqlapi/restful"