🔥A cross-language distributed transaction manager. Support xa, tcc, saga, transactional messages. 跨语言分布式事务管理器
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/*
* Copyright (c) 2021 yedf. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
*/
package main
import (
"embed"
"fmt"
"io/fs"
"net/http"
"net/http/httputil"
"net/url"
"github.com/dtm-labs/dtm/dtmcli/logger"
"github.com/dtm-labs/dtm/dtmsvr/config"
"github.com/dtm-labs/dtm/dtmsvr/entry"
_ "github.com/dtm-labs/dtm/dtmsvr/microservices"
"github.com/gin-gonic/gin"
)
// Version defines version info. It is set by -ldflags.
var Version string
func main() {
app, conf := entry.Main(&Version)
if app != nil {
addDashboard(app, conf)
select {}
}
}
//go:embed dashboard/dist
var dashboard embed.FS
//go:embed dashboard/dist/index.html
var indexFile string
var target = "127.0.0.1:5000"
func getSub(f1 fs.FS, sub string) fs.FS {
f2, err := fs.Sub(f1, sub)
logger.FatalIfError(err)
return f2
}
func addDashboard(app *gin.Engine, conf *config.ConfigType) {
dist := getSub(dashboard, "dashboard/dist")
_, err := dist.Open("index.html")
if err == nil {
app.StaticFS("/assets", http.FS(getSub(dist, "assets")))
app.GET("/dashboard/*name", func(c *gin.Context) {
c.Header("content-type", "text/html;charset=utf-8")
c.String(200, indexFile)
})
logger.Infof("dashboard is served from dir 'dashboard/dist/'")
} else {
app.GET("/", proxyDashboard)
app.GET("/dashboard/*name", proxyDashboard)
app.GET("/@vite/*name", proxyDashboard)
app.GET("/node_modules/*name", proxyDashboard)
app.GET("/src/*name", proxyDashboard)
app.GET("/@id/*name", proxyDashboard)
logger.Infof("dashboard is proxied to %s", target)
}
logger.Infof("Dashboard is running at: http://localhost:%d", conf.HTTPPort)
}
func proxyDashboard(c *gin.Context) {
u := &url.URL{}
u.Scheme = "http"
u.Host = target
proxy := httputil.NewSingleHostReverseProxy(u)
proxy.ErrorHandler = func(rw http.ResponseWriter, req *http.Request, err error) {
logger.Warnf("http: proxy error: %v", err)
ret := fmt.Sprintf("http proxy error %v", err)
_, _ = rw.Write([]byte(ret))
}
logger.Debugf("proxy dashboard to %s", target)
proxy.ServeHTTP(c.Writer, c.Request)
}