conf: support render configure file using environment variables

tests/ci/template_test.go

@@ -0,0 +1,72 @@
+package ci
+
+import (
+	"os"
+	"testing"
+	"time"
+
+	"github.com/fatedier/frp/tests/config"
+	"github.com/fatedier/frp/tests/consts"
+	"github.com/fatedier/frp/tests/util"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const FRPS_TEMPLATE_CONF = `
+[common]
+bind_addr = 0.0.0.0
+bind_port = {{ .Envs.SERVER_PORT }}
+log_file = console
+# debug, info, warn, error
+log_level = debug
+token = 123456
+`
+
+const FRPC_TEMPLATE_CONF = `
+[common]
+server_addr = 127.0.0.1
+server_port = 20000
+log_file = console
+# debug, info, warn, error
+log_level = debug
+token = {{ .Envs.FRP_TOKEN }}
+
+[tcp]
+type = tcp
+local_port = 10701
+remote_port = {{ .Envs.TCP_REMOTE_PORT }}
+`
+
+func TestConfTemplate(t *testing.T) {
+	assert := assert.New(t)
+	frpsCfgPath, err := config.GenerateConfigFile(consts.FRPS_NORMAL_CONFIG, FRPS_TEMPLATE_CONF)
+	if assert.NoError(err) {
+		defer os.Remove(frpsCfgPath)
+	}
+
+	frpcCfgPath, err := config.GenerateConfigFile(consts.FRPC_NORMAL_CONFIG, FRPC_TEMPLATE_CONF)
+	if assert.NoError(err) {
+		defer os.Remove(frpcCfgPath)
+	}
+
+	frpsProcess := util.NewProcess("env", []string{"SERVER_PORT=20000", consts.FRPS_BIN_PATH, "-c", frpsCfgPath})
+	err = frpsProcess.Start()
+	if assert.NoError(err) {
+		defer frpsProcess.Stop()
+	}
+
+	time.Sleep(100 * time.Millisecond)
+
+	frpcProcess := util.NewProcess("env", []string{"FRP_TOKEN=123456", "TCP_REMOTE_PORT=20801", consts.FRPC_BIN_PATH, "-c", frpcCfgPath})
+	err = frpcProcess.Start()
+	if assert.NoError(err) {
+		defer frpcProcess.Stop()
+	}
+
+	time.Sleep(250 * time.Millisecond)
+
+	// test tcp1
+	res, err := util.SendTcpMsg("127.0.0.1:20801", consts.TEST_TCP_ECHO_STR)
+	assert.NoError(err)
+	assert.Equal(consts.TEST_TCP_ECHO_STR, res)
+}