[Libguestfs] [PATCH] sysprep: remove hostname from ifcfg-*

[Richard W.M. Jones]

On Mon, Sep 03, 2012 at 04:05:37PM +0800, Wanlong Gao wrote:
> Remove hostname from network interface configuration.
> 
> Signed-off-by: Wanlong Gao <gaowanlong at cn.fujitsu.com>
> ---
>  po/POTFILES-ml                            |  1 +
>  sysprep/Makefile.am                       |  1 +
>  sysprep/sysprep_operation_net_hostname.ml | 58 +++++++++++++++++++++++++++++++
>  3 files changed, 60 insertions(+)
>  create mode 100644 sysprep/sysprep_operation_net_hostname.ml
> 
> diff --git a/po/POTFILES-ml b/po/POTFILES-ml
> index 76043a0..c9422fb 100644
> --- a/po/POTFILES-ml
> +++ b/po/POTFILES-ml
> @@ -27,6 +27,7 @@ sysprep/sysprep_operation_logfiles.ml
>  sysprep/sysprep_operation_lvm_uuids.ml
>  sysprep/sysprep_operation_machine_id.ml
>  sysprep/sysprep_operation_mail_spool.ml
> +sysprep/sysprep_operation_net_hostname.ml
>  sysprep/sysprep_operation_net_hwaddr.ml
>  sysprep/sysprep_operation_pacct_log.ml
>  sysprep/sysprep_operation_package_manager_cache.ml
> diff --git a/sysprep/Makefile.am b/sysprep/Makefile.am
> index 2ee9abf..46b8309 100644
> --- a/sysprep/Makefile.am
> +++ b/sysprep/Makefile.am
> @@ -55,6 +55,7 @@ operations = \
>  	logfiles \
>  	machine_id \
>  	mail_spool \
> +	net_hostname \
>  	net_hwaddr \
>  	pacct_log \
>  	package_manager_cache \
> diff --git a/sysprep/sysprep_operation_net_hostname.ml b/sysprep/sysprep_operation_net_hostname.ml
> new file mode 100644
> index 0000000..44c6939
> --- /dev/null
> +++ b/sysprep/sysprep_operation_net_hostname.ml
> @@ -0,0 +1,58 @@
> +(* virt-sysprep
> + * Copyright (C) 2012 Fujitsu Limited
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + *)
> +
> +open Utils
> +open Sysprep_operation
> +open Sysprep_gettext.Gettext
> +
> +module G = Guestfs
> +
> +let net_hostname_perform g root =
> +  let typ = g#inspect_get_type root in
> +  let distro = g#inspect_get_distro root in
> +  match typ, distro with
> +  | "linux", ("fedora"|"rhel"|"centos"|"scientificlinux"|"redhat-based") ->
> +    let filenames = g#glob_expand "/etc/sysconfig/network-scripts/ifcfg-*" in
> +    Array.iter (
> +      fun filename ->
> +        (* Replace HOSTNAME=... entry. *)
> +        let lines = Array.to_list (g#read_lines filename) in
> +        let lines = List.filter (
> +          fun line -> not (string_prefix line "HOSTNAME=")
> +        ) lines in
> +        let file = String.concat "\n" lines ^ "\n" in
> +        g#write filename file
> +    ) filenames;
> +
> +    if filenames <> [||] then [ `Created_files ] else []
> +
> +  | _ -> []
> +
> +let net_hostname_op = {
> +  name = "net-hostname";
> +  enabled_by_default = true;
> +  heading = s_"Remove HOSTNAME in network interface configuration";
> +  pod_description = Some (s_"\
> +For Fedora and Red Hat Enterprise Linux,
> +this is removed from C<ifcfg-*> files.");
> +  extra_args = [];
> +  perform_on_filesystems = Some net_hostname_perform;
> +  perform_on_devices = None;
> +}
> +
> +let () = register_operation net_hostname_op
> -- 
> 1.7.12

Thanks - I will test and push this today.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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