Change the hostname at runtime

millisami_r · November 16, 2012, 8:56am

Ohai Chefs!

Since I’ve added the recipe of cookbook unattended-upgrades that emails me about those events.
FYI, I’m using AWS EC2.
But when the email comes, its subject has:

[reboot required] unattended-upgrades result for ‘ip-10-121-17-242’

Here, that private ip is set as hostname and this doesn’t gives me the info which server/instance is that.

So, I want to setup the my custom hostname before all execution of the bootstrap process starts so that the chef run for the first time will change the hostname of the instance.

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com (http://nepalonrails.tumblr.com)
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

millisami_r · November 22, 2012, 10:04am

Hi Chefs!
Is there any pointer that you can direct me to on this?

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com (http://nepalonrails.tumblr.com)
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

On Friday, November 16, 2012 at 2:41 PM, Sachin Sagar Rai wrote:

Ohai Chefs!

Since I've added the recipe of cookbook unattended-upgrades that emails me about those events.
FYI, I'm using AWS EC2.
But when the email comes, its subject has:

[reboot required] unattended-upgrades result for 'ip-10-121-17-242'

Here, that private ip is set as hostname and this doesn't gives me the info which server/instance is that.

So, I want to setup the my custom hostname before all execution of the bootstrap process starts so that the chef run for the first time will change the hostname of the instance.

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com (http://nepalonrails.tumblr.com)
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

kallistec · November 24, 2012, 12:50am

On Thursday, November 22, 2012 at 3:04 AM, Sachin Sagar Rai wrote:

Hi Chefs!
Is there any pointer that you can direct me to on this?

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com (http://nepalonrails.tumblr.com)
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

On Friday, November 16, 2012 at 2:41 PM, Sachin Sagar Rai wrote:

Ohai Chefs!

Since I've added the recipe of cookbook unattended-upgrades that emails me about those events.
FYI, I'm using AWS EC2.
But when the email comes, its subject has:

[reboot required] unattended-upgrades result for 'ip-10-121-17-242'

Here, that private ip is set as hostname and this doesn't gives me the info which server/instance is that.

So, I want to setup the my custom hostname before all execution of the bootstrap process starts so that the chef run for the first time will change the hostname of the instance.

Do you want the bootstrap script to change the hostname, or do you want chef to do it?

--
Daniel DeLeo

millisami_r · November 24, 2012, 11:36am

I'd opt for the chef to handle it without breaking the SSH connection.

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com (http://nepalonrails.tumblr.com)
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

On Saturday, November 24, 2012 at 6:35 AM, Daniel DeLeo wrote:

On Thursday, November 22, 2012 at 3:04 AM, Sachin Sagar Rai wrote:

Hi Chefs!
Is there any pointer that you can direct me to on this?

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com (http://nepalonrails.tumblr.com)
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

On Friday, November 16, 2012 at 2:41 PM, Sachin Sagar Rai wrote:

Ohai Chefs!

Since I've added the recipe of cookbook unattended-upgrades that emails me about those events.
FYI, I'm using AWS EC2.
But when the email comes, its subject has:

[reboot required] unattended-upgrades result for 'ip-10-121-17-242'

Here, that private ip is set as hostname and this doesn't gives me the info which server/instance is that.

So, I want to setup the my custom hostname before all execution of the bootstrap process starts so that the chef run for the first time will change the hostname of the instance.

Do you want the bootstrap script to change the hostname, or do you want chef to do it?

--
Daniel DeLeo

Sean_OMeara · November 26, 2012, 9:17pm

try something like this

gist.github.com

https://gist.github.com/someara/673693

gistfile1.txt

bash -c '

echo <%= @config[:chef_node_name] %> > /tmp/chef_node_name

cat /tmp/chef_node_name | cut -d. -f1 > /tmp/proper_hostname
cat /tmp/chef_node_name | cut -d. -f2 | tr -d "\n" > /tmp/proper_dnsdomainname
echo -n "." >> /tmp/proper_dnsdomainname
cat /tmp/chef_node_name | cut -d. -f3 >> /tmp/proper_dnsdomainname

IPV4ADDR=`ip addr | grep eth0 | grep "inet " | cut -d " " -f 6 | cut -d \/ -f 1`

This file has been truncated. show original

-s

On Sat, Nov 24, 2012 at 6:36 AM, Sachin Sagar Rai millisami@gmail.com wrote:

I'd opt for the chef to handle it without breaking the SSH connection.

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com
Sent with Sparrow

On Saturday, November 24, 2012 at 6:35 AM, Daniel DeLeo wrote:

On Thursday, November 22, 2012 at 3:04 AM, Sachin Sagar Rai wrote:

Hi Chefs!
Is there any pointer that you can direct me to on this?

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com
Sent with Sparrow

On Friday, November 16, 2012 at 2:41 PM, Sachin Sagar Rai wrote:

Ohai Chefs!

Since I've added the recipe of cookbook unattended-upgrades that emails me
about those events.
FYI, I'm using AWS EC2.
But when the email comes, its subject has:

[reboot required] unattended-upgrades result for 'ip-10-121-17-242'

Here, that private ip is set as hostname and this doesn't gives me the info
which server/instance is that.

So, I want to setup the my custom hostname before all execution of the
bootstrap process starts so that the chef run for the first time will change
the hostname of the instance.

Do you want the bootstrap script to change the hostname, or do you want chef
to do it?

--
Daniel DeLeo

Mike · November 26, 2012, 10:18pm

try something like this
chef hostname · GitHub
+1 to this - I've used it a bunch before, it did what I wanted.

On Mon, Nov 26, 2012 at 4:17 PM, Sean OMeara someara@gmail.com wrote:

try something like this
chef hostname · GitHub

-s

On Sat, Nov 24, 2012 at 6:36 AM, Sachin Sagar Rai millisami@gmail.com wrote:

I'd opt for the chef to handle it without breaking the SSH connection.

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com
Sent with Sparrow

On Saturday, November 24, 2012 at 6:35 AM, Daniel DeLeo wrote:

On Thursday, November 22, 2012 at 3:04 AM, Sachin Sagar Rai wrote:

Hi Chefs!
Is there any pointer that you can direct me to on this?

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.com
Sent with Sparrow

On Friday, November 16, 2012 at 2:41 PM, Sachin Sagar Rai wrote:

Ohai Chefs!

Since I've added the recipe of cookbook unattended-upgrades that emails me
about those events.
FYI, I'm using AWS EC2.
But when the email comes, its subject has:

[reboot required] unattended-upgrades result for 'ip-10-121-17-242'

Here, that private ip is set as hostname and this doesn't gives me the info
which server/instance is that.

So, I want to setup the my custom hostname before all execution of the
bootstrap process starts so that the chef run for the first time will change
the hostname of the instance.

Do you want the bootstrap script to change the hostname, or do you want chef
to do it?

--
Daniel DeLeo

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Change the hostname at runtime

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