I am using golang app , wrapped up in a docker container to connect to mysql db running on my localhost(not container). Her eis what I tried: Docker File
FROM artifactory.cloud.com//golang:1.10-alpine3.7
RUN mkdir -p /go/src/github.kdc.mafsafdfsacys.com/perfGo/
WORKDIR /go/src/github.kdc.mafsafdfsacys.com/perfGo
COPY ./ $WORKDIR
RUN apk update && apk upgrade
RUN go build
RUN chmod +x ./entrypoint.sh
RUN ls
RUN chmod +x ./perfGo
ENTRYPOINT ["./entrypoint.sh"]
perfGo.go
package main
import (
"database/sql"
_ "github.com/go-sql-driver/mysql"
)
func main() {
db, err := sql.Open("mysql", "root:@tcp(localhost:3306)/testdb")
checkErr(err)
_,dbErr := db.Exec("USE testdb")
if err != nil {
panic(dbErr)
}
// insert
_, inErr := db.Query("INSERT INTO books VALUES('rewyrewryewwrewyt','dsfdsfs','fdsfasaf','55')")
defer db.Close()
// if there is an error inserting, handle it
if inErr != nil {
panic(inErr.Error())
}
}
func checkErr(err error) {
if err != nil {
panic(err)
}
}
entrypoint.sh
!/usr/bin/env bash
./perfGo
Command am using to build is
docker build .
command used to run the container: docker run -p 3306:3306 -ti
The error that I see is
panic: dial tcp 127.0.0.1:3306: connect: connection refused
goroutine 1 [running]:
main.main()
/go/src/github.kdc.capitalone.com/midnight-tokens/perfGo/perf.go:22 +0x1d4
If I run the binary without the container, it runs totally fine on my mac, but when I try to run it as part of docker container, it fails to connect
