[lxc-devel] [PATCH 4/4] oracle template: fix pam login failures under user namespace

[Serge Hallyn]

Quoting Dwight Engen (dwight.engen at oracle.com):
> Signed-off-by: Dwight Engen <dwight.engen at oracle.com>

Acked-by: Serge E. Hallyn <serge.hallyn at ubuntu.com>

> ---
>  templates/lxc-oracle.in | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/templates/lxc-oracle.in b/templates/lxc-oracle.in
> index e86f261..8770e70 100644
> --- a/templates/lxc-oracle.in
> +++ b/templates/lxc-oracle.in
> @@ -72,6 +72,10 @@ container_rootfs_configure()
>      fi
>      sed -i 's|session[ \t]*required[ \t]*pam_selinux.so[ \t]*close|#session required pam_selinux.so close|' $container_rootfs/etc/pam.d/login
>      sed -i 's|session[ \t]*required[ \t]*pam_selinux.so[ \t]*open|#session required pam_selinux.so open|' $container_rootfs/etc/pam.d/login
> +
> +    # setting /proc/$$/loginuid doesn't work under user namespace, which
> +    # prevents logins from working
> +    sed -i 's|session[ \t]*required[ \t]*pam_loginuid.so|#session required pam_loginuid.so|' $container_rootfs/etc/pam.d/sshd
>      sed -i 's|session[ \t]*required[ \t]*pam_loginuid.so|#session required pam_loginuid.so|' $container_rootfs/etc/pam.d/login
>  
>      if [ -f $container_rootfs/usr/sbin/selinuxenabled ]; then
> @@ -83,6 +87,11 @@ container_rootfs_configure()
>      sed -i 's|cat /proc/self/attr/current|cat /proc/self/attr/current 2>/dev/null|' $container_rootfs/etc/rc.sysinit
>      sed -i 's|cat /proc/self/attr/current|cat /proc/self/attr/current 2>/dev/null|' $container_rootfs/etc/rc.d/rc.sysinit
>  
> +    # on ol4 pam_limits prevents logins when using user namespaces
> +    if [ $container_release_major = "4" ]; then
> +        sed -i 's|session[ \t]*required[ \t]*/lib/security/\$ISA/pam_limits.so|#session required /lib/security/$ISA/pam_limits.so|' $container_rootfs/etc/pam.d/system-auth
> +    fi
> +
>      # configure the network to use dhcp. we set DHCP_HOSTNAME so the guest
>      # will report its name and be resolv'able by the hosts dnsmasq
>      cat <<EOF > $container_rootfs/etc/sysconfig/network-scripts/ifcfg-eth0
> -- 
> 1.8.3.1
> 
> 
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