Nathan,
I do not know if the following will work for you if you need either
the Public DNS or Elastic IP Addresses.
This is a cut-down version of a bash script that I run to get all of
the app role private IP addresses:
#!/bin/bash
# jdMelton
#
# Report undefined variables.
shopt -s -o nounset
#
# Get the app server IP addresses.
# If this script runs during a rebuild of /etc/aws/hosts, then ls will
return
# an error or the directory may be empty. So, loop until a count is
obtained.
declare -i APP_SERVER_COUNT=0
declare -a APP_DIRECTORY_ARRAY
while [ $APP_SERVER_COUNT -lt 1 ]; do
APP_DIRECTORY_ARRAY=($(ls /etc/aws/hosts/app 2> /dev/null))
app_server_count=${#app_directory_arr...@]}
if [ $APP_SERVER_COUNT -lt 1 ]; then
echo -n 'APP_SERVER_COUNT < 1 ' >> $MYLOGFILE; date >>
$MYLOGFILE
sleep 60s
fi
done
# Do something useful here. This just shows the results.
declare APP_SERVER
for APP_SERVER in ${app_directory_arr...@]}; do
echo 'app role = '$APP_SERVER
done
This can be repeated for www or any of the other roles.
You could do something like this in php as well.
I believe that you do need to enable rebuild /etc/aws/hosts in
scripting to keep these up do date.
On Mar 13, 11:59 pm, Nathan Palmer <[email protected]> wrote:
> That looks like it could work I'm just not sure how to use it. What
> would be the easiest way to put this to use possibly in a php script?
> I'm not sure how to use it in that way. I ran those commands from the
> shell and got a result but I need to somehow get that information,
> parse the xml and use it in a useful way. Can anyone point me to any
> existing script snippets so I can see how I can apply it to my
> situation?
>
> Thanks,
>
> Nathan
>
> On Fri, Mar 13, 2009 at 7:43 AM, Nickolas Toursky <[email protected]> wrote:
>
> > Hi Nathan,
>
> > Consider using QueryEnv Scalr API to do this (more details at
> >http://code.google.com/p/scalr/wiki/QueryEnv).
> > "list-roles" query response contains indexes for every instance within
> > a role.
>
> > Nick
>
> > On Mar 13, 4:18 am, Nathan Palmer <[email protected]> wrote:
> >> I'm trying to setup a script for my app role that will connect to the
> >> gluster server that was created on the master role. I can start the
> >> gluster server based on the %instance_index% = 1 but each additional
> >> node that is started needs to get the IP address of the master node in
> >> order to setup it's gluster configuration. Is there a way to do this?
>
> >> Thanks,
>
> >> Nathan
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