So what is needed to run the application? Let’s follow the end user’s browser request and see what components it hits įirst it hits a firewall, then an http server, another firewall, the application server and finally the application running in the application server which uses a database to retrieve some data. This means that the end user has opened his/her browser, types “and sees the application in production, hence the URL, fully functional! It is: “Making an application available to end users”. “Listen son, pressing the deploy button in the administrative console is only a small sentence in the big deployment story.”īefore I start talking about the full deployment story, you first have to realize what the goal of a deployment is. “But I am developing a Java application, I only need to deploy to an application server and then I am done.” you respond. “You also need to configure Apache!” he says. “Wait! An Apache server?”-you exclaim! “But it should point to our application server, not an HTTP server thing.”īob, by now used to having to teach young developers the intricacies of modern network topologies, calmly explains that all requests coming from a browser first must go through a cluster of HTTP servers before the requests are routed to the application servers. Bob is of course happy to add a DNS record that will point to an Apache server. Time to phone Bob! – the friendly operator of all that funky infrastructure and middleware. As you try to load the page, you get a DNS error, “Host not found”. Then you deploy the fresh loaf of ear-file to the server and fire up your browser to see if you can reach the application. Next you start up the administrative console of the application server in the development environment. The post XL Deploy Variables Demystified : Part 1 appeared first on XebiaLabs.You just baked the first release of your application using Maven. If you want to have the code snippet instead of copying it from the blog, please refer it from this git repo : Good luck demystifying the secrets of XL-Deploy. You should be able to see the output of variable list on double clicking the script.Now start a new deployment and open the Plan Analyzer after mapping the type to container.You may change the type to deploy on any container type. This type will deploy on overthere.LocalHost by default. Create new Application or include “test.scriptdeployable” type under existing package.Copy the above free marker snippet into that file.Create a folder script under XLDEPLOY_HOME/ext folder and create a new file called osscript.sh.ftl under that folder.Or if you’re just more interested in getting details of deployed, you can do thisĪ simple example to try this out would be TIP: Prefer keeping depth=0 or depth=1 if you prefer to use it with plugins other than XL-rules. Exception are generated while trying to find out values of certain properties who are unresolved at that point and throws exceptions. Step : when this is being explored, you’ll see a lot of exceptions being generated in the log and it takes a lot of time but it would still show up in a while. Statics : is not explored since its not of type hash or a simple type IMPORTANT : If you use this with generic or another plugin except XL-rules, it will mostly include 3 top level variables that will be explored further. NOTE: This won’t work for jython step in XL-rules since that doesn’t exposes the freemarker context It gives you convenient output if you include it in a script that shows up in plan analyzer while planning for deployment. Now this Freemarker snippet can be used wherever a free marker context is available. “What variable are exposed by Freemarker ?” “How do it get to know what variables i could use in my script ?” A lot of new people starting on XL Deploy always get these questions in mind,
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