CODEWITHSUNDEEP
go
buildmaestro
buildmaestro

Reputation: 1446

os.mkdirall and change ownership to user with os.chown but how to get uid, gid of user

I need to mkdir on linux as root, so I run may app elevated with sudo. But the app making use of this directory runs as a different user, postgres, so it errors out with a permission denied error message.

dir: = "/srv/tablepspaces/psql96/client"
err := os.MkdirAll(dir, os.FileMode(0775))

(for some reason the above results in 755 when i stat the dir on linux)

so I would like to chown the dir:

I need to use os.Chown(name string, uid, gid int) error

How do I get the uid and gid of a user without shelling out and getting the return and parsing of id

Upvotes: 2

Views: 3128

Answers (1)

buildmaestro
buildmaestro

Reputation: 1446

err := os.MkdirAll(dir, os.FileMode(0775))
if err != nil {
    return fmt.Errorf("error creating tabelspace folders: %v ", err.Error())
}
if runtime.GOOS != "windows" {
    group, err := user.Lookup("postgres")
    if err != nil {
        return fmt.Errorf("error looking up postgres user user info")
    }
    uid, _ := strconv.Atoi(group.Uid)
    gid, _ := strconv.Atoi(group.Gid)

    err = syscall.Chown(dir, uid, gid)
}

Upvotes: 1

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