Thanks Johnny,

I recently found that it write some scripts in /etc/rc.local which change root password to a random password and lock it.

In addition, I found it created an centos account at first boot.

I think there may other changes here, so where can I find these *source code*?

Thanks anyone in advance!

On Tue, Jun 13, 2017 at 09:22:25AM -0500, Johnny Hughes wrote:

On 06/13/2017 02:37 AM, 杨成伟 wrote:

...

Hi list,

I found centos genericcloud image for openstack at https://docs.openstack.org/image-guide/obtain-images.html#centos

but I didn't found any release note for these images, so I didn't known what's difference between genericcloud image and the official centos release, e.g. centos 6.8, 7.2 release and etc.

Is there any wiki/doc/releasenote?

There is no real difference, the Generic Images are a point time image made from CentOS (either 6 or 7) for the end of the month for that date. For example, CentOS-7-x86_64-GenericCloud-1705.qcow2c is an image created with the latest packages from the end of May 2017, and is represented as 1705 (YYMM).

It is basically a minimal install (plus the cloud-init RPM and it's dependencies) that you can add things to with 'yum install' and it includes the base OS and the updates from May 31, 2017. We do one every month. It works just like a minimal install of CentOS if you did it from the installation ISOs. Here is a link:

http://cloud.centos.org/centos/7/images/

We also have vagrant box installs and atomic installs if you need those instead of VM images:

http://cloud.centos.org/centos/7/atomic/images/

http://cloud.centos.org/centos/7/vagrant/x86_64/images/

All of these images are just a different way to get base CentOS plus updates for the end of a given month.

We also create an ISO set for the same date here, if you prefer ISO installs to images:

https://buildlogs.centos.org/rolling/7/isos/x86_64/

Those are also point in time (end of the month) ISO sets that are base CentOS plus all updates at the time they are generated.

---

CentOS-devel mailing list CentOS-devel@centos.org https://lists.centos.org/mailman/listinfo/centos-devel

On Wed, Jul 12, 2017 at 10:08:05AM -0700, Jim Perrin wrote:

They're on github, for the cloud images, docker, and vagrant.

https://github.com/CentOS/sig-cloud-instance-build/

Thanks Jim!

On 07/10/2017 06:07 PM, Chengwei Yang wrote:

...

Thanks Johnny,

I recently found that it write some scripts in /etc/rc.local which change root password to a random password and lock it.

In addition, I found it created an centos account at first boot.

I think there may other changes here, so where can I find these *source code*?

Thanks anyone in advance!

On Tue, Jun 13, 2017 at 09:22:25AM -0500, Johnny Hughes wrote:

...

On 06/13/2017 02:37 AM, 杨成伟 wrote:

...

Hi list,

I found centos genericcloud image for openstack at https://docs.openstack.org/image-guide/obtain-images.html#centos

but I didn't found any release note for these images, so I didn't known what's difference between genericcloud image and the official centos release, e.g. centos 6.8, 7.2 release and etc.

Is there any wiki/doc/releasenote?

There is no real difference, the Generic Images are a point time image made from CentOS (either 6 or 7) for the end of the month for that date. For example, CentOS-7-x86_64-GenericCloud-1705.qcow2c is an image created with the latest packages from the end of May 2017, and is represented as 1705 (YYMM).

It is basically a minimal install (plus the cloud-init RPM and it's dependencies) that you can add things to with 'yum install' and it includes the base OS and the updates from May 31, 2017. We do one every month. It works just like a minimal install of CentOS if you did it from the installation ISOs. Here is a link:

http://cloud.centos.org/centos/7/images/

We also have vagrant box installs and atomic installs if you need those instead of VM images:

http://cloud.centos.org/centos/7/atomic/images/

http://cloud.centos.org/centos/7/vagrant/x86_64/images/

All of these images are just a different way to get base CentOS plus updates for the end of a given month.

We also create an ISO set for the same date here, if you prefer ISO installs to images:

https://buildlogs.centos.org/rolling/7/isos/x86_64/

Those are also point in time (end of the month) ISO sets that are base CentOS plus all updates at the time they are generated.

...

---

CentOS-devel mailing list CentOS-devel@centos.org https://lists.centos.org/mailman/listinfo/centos-devel

---

CentOS-devel mailing list CentOS-devel@centos.org https://lists.centos.org/mailman/listinfo/centos-devel

-- Jim Perrin The CentOS Project | http://www.centos.org twitter: @BitIntegrity | GPG Key: FA09AD77 _______________________________________________ CentOS-devel mailing list CentOS-devel@centos.org https://lists.centos.org/mailman/listinfo/centos-devel

On Thu, Jul 13, 2017 at 12:10:15PM +0100, Karanbir Singh wrote:

Hi On 11/07/17 02:07, Chengwei Yang wrote:

...

Thanks Johnny,

I recently found that it write some scripts in /etc/rc.local which change root password to a random password and lock it.

In addition, I found it created an centos account at first boot.

I think there may other changes here, so where can I find these *source code*?

Thanks anyone in advance!

What are you trying to do ? what is the goal ? the things you mentioned above are -expected- in a cloud image.

As the email subject suggests that I'm trying to figure out what's exact the difference between the cloud generic image and the official centos release.

Because we're trying to use cloud generic image instead of create one from the official centos release ourselves.

-- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc _______________________________________________ CentOS-devel mailing list CentOS-devel@centos.org https://lists.centos.org/mailman/listinfo/centos-devel

Hi,

On Saturday, August 5, 2017, Karanbir Singh mail-lists@karan.org wrote:

...

Because we're trying to use cloud generic image instead of create one from the official centos release ourselves.

sorry, i still dont understand your question. The Cloud images have nothing that isnt in the centos linux distro

Actually, I think he means to further customize these images. However, depending on your use-case, wouldn't cloud-init be able to achieve what you want?

Or are you the offering these images to your clients/customers? If so, I believe further customization might not be what your users want, as it is not as expected and might lead to questions of integrity/reliability.

Regards,

Gerard