我在Docker中学习调试Golang应用程序。我在shell中使用dlv connect
取得了成功。我可以添加断点,继续,接下来...我可以在VSCode中注意,但是等待halting
。
我在功能主页上单击左键,直到红点。然后点击绿色按钮,就像播放'一样。在容器运行中编程,但不能在函数main上停止。
我是否以错误的方式使用VSCode?我需要你的帮助。谢谢。
#Dockerfile
FROM supinf/go:1.8-builder
RUN apk --no-cache add tini \
&& apk --no-cache add --virtual build-dependencies git \
# Compile delve
&& go get github.com/derekparker/delve/cmd/dlv \
&& cd $GOPATH/src/github.com/derekparker/delve \
&& go install github.com/derekparker/delve/cmd/dlv \
# Clean up
&& apk del --purge -r build-dependencies \
&& rm -rf /go/src/*
ENTRYPOINT ["/sbin/tini", "--"]
CMD ["dlv", "-h"]
docker build -t mydelve .
package main
import (
"fmt"
"sync"
"time"
)
func dostuff(wg *sync.WaitGroup, i int) {
fmt.Printf("goroutine id %d\n", i)
time.Sleep(60 * time.Second)
fmt.Printf("end goroutine id %d\n", i)
wg.Done()
}
func main() {
var wg sync.WaitGroup
workers := 10
wg.Add(workers)
for i := 0; i < workers; i++ {
go dostuff(&wg, i)
}
wg.Wait()
}
docker run --rm -p 2345:2345
-v $GOPATH/src:/go/src
-w /go/src/test/dlv
--security-opt seccomp=unconfined
mydelve
dlv debug --headless --listen=:2345 --log`
dlv connect 127.0.0.1:2345 --wd . --log
有效。
launch.json
{
"version": "0.2.0",
"configurations": [
{
"name": "Remote",
"type": "go",
"request": "launch",
"mode": "remote",
"program": "${fileDirname}",
"port": 2345,
"host": "127.0.0.1",
"env": {},
"args": []
}
]
}
登录容器
$ docker run --rm -p 2345:2345 -v $GOPATH/src:/go/src -w /go/src/test/dlv --security-opt seccomp=unconfined mydelve dlv debug --headless --listen=:2345 --log
2017/05/22 09:07:56 server.go:73: Using API v1
2017/05/22 09:07:56 debugger.go:97: launching process with args: [/go/src/test/dlv/debug]
API server listening at: [::]:2345
2017/05/22 09:08:00 debugger.go:505: continuing
goroutine id 3
goroutine id 9
goroutine id 4
goroutine id 5
goroutine id 6
goroutine id 7
goroutine id 8
goroutine id 1
goroutine id 0
goroutine id 2
end goroutine id 6
end goroutine id 3
end goroutine id 9
end goroutine id 4
end goroutine id 5
end goroutine id 8
end goroutine id 7
end goroutine id 1
end goroutine id 0
end goroutine id 2
2017/05/22 09:08:10 debugger.go:496: halting
答案 0 :(得分:0)
我认为您需要解决的主要问题是将主机从“127.0.0.1”(localhost)更改为容器的IP(上面的launch.json文件的第11行)。这篇文章可能有所帮助:
https://blog.intelligentbee.com/2016/12/15/debugging-golang-apps-in-docker-with-visual-studio-code/
根据这一点,“您可能必须将主机IP更改为您的docker-machine ip输出。”或者,如果您使用kubernetes,您可能需要使用“kubectl describe pod”,然后查找“IP:”