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Benjamin Peikes
Asked: 2014-12-06 12:51:57 +0800 CST

How would you add a share to smb.conf via a script?

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I'd like to script adding a share to a smb.conf file. My current script just appends it to the end of the file, but that's not ideal. I'd rather have something that will add a new share if it doesn't exist, and replace it if it does.

I'm currently scripting this on a CentOS 7 distro, but would ideally like something that would work across distros, though that's not a requirement.

Also, I'm using bash to do this because the script is run before other packages are added to the system. The script uses yum to install the samba packages, and then is supposed to configure it and add shares.

bash

2 Answers

  1. To fit with modern sysadmin best practices it would be good to add your configs as individual files in /etc/smb/smb.d and then reference them with an include. Sadly samba does not support wildcard includes so you have to do add something like:

    include = /etc/smb/includes.conf

    in your smb.conf and then generate the includes.conf with something like:

    ls /etc/smb/smb.d/* | sed -e 's/^/include = /' > /etc/smb/includes.conf

    For a bit more context:

    chicks@silver 23:57:23 smb !531 $ ls smb.d
a.conf  c.conf  e.conf
chicks@silver 23:57:29 smb !532 $ ls /etc/smb/smb.d/* | sed -e 's/^/include = /' > /etc/smb/includes.conf
chicks@silver 23:57:40 smb !533 $ cat includes.conf 
include = /etc/smb/smb.d/a.conf
include = /etc/smb/smb.d/c.conf
include = /etc/smb/smb.d/e.conf

    So now you can stick any additional samba configs into /etc/smb/smb.d, regenerate includes.conf and restart samba and life is good.

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  2. This is an old topic but still useful. This are my scripts to create and delete users in a simple samba installation for storing backups.

    Tested on CentOS

    Prepare directory and permissions

    Run this commands on a terminal

    sudo mkdir /backups
sudo mkdir /etc/samba/smb.conf.d
sudo groupadd sambashare 
sudo chgrp sambashare /backups
sudo useradd -M -d /home/sadmin -s /usr/sbin/nologin -G sambashare sadmin
sudo smbpasswd -a sadmin
sudo smbpasswd -e sadmin

    smb.conf

    [global]
    workgroup = TUAITI
    security = user

    passdb backend = tdbsam

    printing = cups
    printcap name = cups
    load printers = yes
    cups options = raw

include = /etc/samba/includes.conf

    smbaddshare.sh

    #!/bin/bash
USER=$1
if [ -z "$1" ]
then
    echo "No username given"
    exit 1
fi

useradd -M -d /backups/$USER -s /usr/sbin/nologin -G sambashare $USER
mkdir /backups/$USER
chown $USER:sambashare /backups/$USER
chmod 2770 /backups/$USER
smbpasswd -a $USER
smbpasswd -e $USER

cat  /etc/samba/smb.conf.d/$USER.conf
[$USER]
    path = /backups/$USER
    browseable = no
    read only = no
    force create mode = 0660
    force directory mode = 2770
    valid users = $USER @sadmin
EOF

ls /etc/samba/smb.conf.d/* | sed -e 's/^/include = /' > /etc/samba/includes.conf

smbcontrol all reload-config

    smbremoveshare.sh

    #!/bin/bash
USER=$1
if [ -z "$1" ]
then
    echo "No username given"
    exit 1
fi

read -r -p "Are you sure you want to delete the user ? [y/N] " response
response=${response,,}    # tolower
if [[ "$response" =~ ^(yes|y)$ ]]
then
    smbpasswd -x $USER
    userdel $USER
    mv /backups/$USER /backups/$USER.`date +"%Y%m%d%H%M%S"`.deleted
    rm /etc/samba/smb.conf.d/$USER.conf

    ls /etc/samba/smb.conf.d/* | sed -e 's/^/include = /' > /etc/samba/includes.conf

    smbcontrol all reload-config
else
    echo "Nothing done"
fi
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