[chef] Template value from script output

[Matthew Drobnak < >]

If I have a template file, that I need to get a value only when it’s changed, how do I set that up in the recipe?

 

For example:

 

script “get_appserverval”

   interpreter “bash”

   cwd “/tmp”

   code <<-EOH

SERVERURL=$1

SERVERPORT=$2

USERNAME=$3

PASSWORD=$4

 

URL="`wget" --user-agent="Mozilla/5.0 (Windows NT 6.1; U; en; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6" --keep-session-cookies --save-cookies=mycookie ${SERVERURL}:${SERVERPORT} -O - |grep "action/Login" | awk -Faction= '{print $2}' |awk '{print $1}' |sed "s/:80/:${SERVERPORT}/g"`

 

BASEURL=`wget --user-agent="Mozilla/5.0 (Windows NT 6.1; U; en; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6" --keep-session-cookies --load-cookies=mycookie --save-cookies=mycookie2 ${URL} --post-data="UserName=${USERNAME}\&Password=${PASSWORD}\&F_LOCALE=en_us\&submitButton=\&page=submit" -O - | grep "var gBaseActionURL" | sed 's/\r//g' | sed "s/:80/:${SERVERPORT}/g" | awk -F= '{print $2}' |sed 's/ //g' | sed 's/\"//g' | sed 's/;//g'`

 

APPSERVERVAL=`wget --user-agent="Mozilla/5.0 (Windows NT 6.1; U; en; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6" --keep-session-cookies --load-cookies=mycookie2 --save-cookies=mycookie3 ${BASEURL}Report.Open?F_REPORTID=11 -O - | grep APPSERVERVALUE |awk -FVALUE= '{print $2}' |sed 's/>//g' | sed 's/\"//g'`

 

echo $APPSERVERVAL

EOH

end

 

So I have a few problems:

 

Need to pass some values to the script.

Need to get a value from the script, to pass to a template resource.

How do I run this script only if the affected template changes, or it’s a new deploy?

 

This is a Java WebApp. I’m using application to deploy the war file. I modified the tomcat cookbook to take a parameter for Path to tell the deployment path, and the app[id] is set as the Context name.

I also modified the application cookbook to allow me to override the db setup parameters, but I would like to know if there’s a better way to do it… I’ll post a diff shortly.

 

So right now I have a role, which has a run list of application, and appname. This code would be called in the appname recipe, which copies over the supporting template files and restarts tomcat when done (each file has a restart tomcat notification, which works fine). Should I use the apps data bag, or use a different one?

 

Thanks.

 

-Matt