IBM Cloud Pak® for Applications (CP4Apps) is an end-to-end hybrid cloud application platform, providing flexibility for deployments, building new cloud-native applications, refactoring and re-platforming existing applications. Designed to leverage a collection of application runtimes, modernization tools and a Kubernetes container platform to adapt to their landscape needs.
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IBM DataPower Gateway
Score 8.0 out of 10
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The IBM DataPower Gateway is a security and integration platform.
IBM Cloud Pak for Applications is clearly suitable for modernizing the WebSphere runtime from the heavy, complex and expensive WAS-ND, and to a lesser extent WAS-base, to the super simple, fast and lightweight WebSphere Liberty runtime. I guarantee, once you start using Liberty you'll never look back. Enough cannot be said about how awesome Transformation Advisor is. The output analysis it produces, along with the migration plan and associated artifacts, considerably simplifies both the decision-making process surrounding modernization and subsequent implementation. Without TA we would've made bad decisions by blindly picking unsuitable apps for moving from WAS to Liberty. Using the results from TA we've excluded multiple WAS apps from our immediate plans to migrate to Liberty, saving time and effort that probably would have resulted in a failed migration. We recently used Transformation Advisor to help us successfully migrate an app from Tomcat to WebSphere Liberty. We needed to make some changes to the Tomcat app, but TA helped highlight these required changes. Without TA I'm not sure we would have succeeded.
WebSphere DataPower Gateway is really beneficial if you are trying to integrate two or more systems. It provides you with comfort and peace of mind by creating a DMZ zone for the services which are going out of the intranet to hit external clients APIs. It is greatly recommended if you have a very high volume service or API which is being used by a majority of clients because it has a dedicated physical box present which takes care of memory, CPU and all such stuff. So, all your transactions happen at wire-speed.
The foremost thing that we use DataPower is for implementing top-notch level security in different projects. We use it as a security gateway when some internal client or external client wants to make a call to any of our APIs. The basic security implementation which we do for the projects is SSL which can get more and more advanced based on the requirements of the project. Some clients want to implement OAuth, some want to implement SAML, and some are happy with a 2-way SSL handshake.
Another big advantage of DataPower is that it supports all the major industry message formats. It especially has an inbuilt component called the Multi-Protocol Gateway which comes installed in the box itself. It's the best thing if you want to convert an XML to JSON or vice-versa. It does all those conversions at wire-speed doesn't matter the volume of those transactions. We also use it with MQ while interacting with Mainframes and legacy systems. It supports all MQ properties and gives us the flexibility to change the message as well if required.
We have used DataPower in integration with ServiceNow as well to raise incidents and trigger emails to respective clients by writing custom scripts which continuously runs on the DataPower logs. As soon as they see any particular error for the services which are being monitored, they send an SNMP trap to ServiceNow with the error message and an incident is raised.
While the licensing is considerably simplified than it used to be, I still find it somewhat confusing. For example, WebSphere Liberty Core has an 8:1 VPC ratio. This is clear when dealing with VMs but it is still not clear to me as to whether we get an 8:1 ratio when running on OpenShift or whether we need to purchase additional OpenShift licenses to support running WebSphere Liberty Core in OpenShift.
Not so much related to IBM Cloud Pak for Applications, but while Transformation Advisor is an indispensable tool to help modernize to the WebSphere Liberty runtime, I wish we could run it against WebSphere Liberty itself. The reason being, we are now using TA as a single repository for our configurations. TA also highlights many potential issues when migrating to Liberty; these issues may also be applicable for apps already running in Liberty, we just don't know it yet.
The old interface is being really missed by our team as the new WebUI interface is not that intuitive or easy to work with. It takes a lot of time to load. There should be an inbuilt wizard for creating a Rest service as well like there is for an XML based service.
IBM support is very knowledgeable but it's not that easy to reach them. They don't release the fix patches very soon which also becomes a big issue in certain situations where critical projects are involved.
Lastly, DataPower has its steep learning curve and it requires time and effort on your end to gain full control and make the most of the advanced features which it offers. Finding the right resource in the market is not that easy.
Our customer mission-critical core banking applications like Temenos T24 run on best of the breed IBM WebSphere Application Server which is java based-application server. IBM has kept up the promise of providing support, fixpack, and any update. As far as I know, at least by 2030, IBM is committed to continue with WHE which gives customers confidence in their current investments.
It has really taken our business to the next level. We have expanded and integrated with so many new vendors and for all those integrations DataPower is serving as our security gateway.
We don't have to depend on any other tool for doing the load balancing of the incoming requests as that is also taken care inside the WebSphere DataPower Gateway box itself, thereby distributing the load equally.
It has made our platform much more secure, uniform and robust to deal with any kind of incoming message format or threat as well due to its latest security mechanisms and huge processing power.
