Question

I prepared a WLST script that prints all sever names from WebLogic cluster to output file. The output is dynamic and it’s content depends of amount of servers – cluster members.
The output file is simple:

hostname1

hostname2 ..

hostnameN

I need now to prepare the Ant task that will copy one file to each server from the outputfile. As I understand I need to use Apply task , because I cannot install additional Ant packages.

Answer 1

One way of doing this is , assuming the use of SCP for the deploy, is to run a setup script before running ant deploy target.

Setup has:

1. INPUT= the list of target hosts
2. INPUT= ant properties file that is used in ant.SCP action.
3. OUTPUT= new version of properties reflecting the updated list of target hosts.

Once the setup has run, the abstract deploy step is now concrete and has a list of SCP steps in a loop that will copy to all needed hosts.

Sample SCP syntax..

  <scp file="myfile.txt"
       todir="user@somehost:/home/chuck" 
       keyfile="${user.home}/.ssh/id_dsa"
       passphrase="my extremely secret passphrase"
  />

Sample loop :

The @ in a for loop while using scp