Configure samba server

Hi, i'm trying to configure a samba server from yocto for udoo cards. I have a working server, but i would like to add the user with password to samba at yocto build step. For this i add this recipe (samba_%.bbappend)

Code:

FILESEXTRAPATHS_prepend := "${THISDIR}/files:"

# Add custom smb.conf file to samba recipe
SRC_URI += "file://22-samba-conf.patch"

pkg_postinst_${PN} () {
    smbpasswd -a user -s
    echo Pass
    echo Pass
    echo
}

For that i use pkg_postinst but i don't know if i use it correctly (for the moment this won't work) ! At first boot time i need to exexcute this in shell to activate the user in Samba. @graugans /@cyrilf do you have an idea how i can proceed ? The patch it just to modify the smb.conf file for my use.

 

I have make some progress. under the sript taht automate the creation of a samba user :

Code:

     #!/usr/bin/expect -f
     spawn echo script for create samba user
     spawn smbpasswd -a myUser
     expect "New SMB password:"
     send "myPassword\n"
     expect "Retype new SMB password:"
     send "myPassword\n"
     interact
     spawn echo end of script

For that, we need to add "expect" in local.conf. I have tested it on the card and it works, but the problem is that when i add it to
pkg_postinst_samba () this won't work !