In keeping with the impressive release pace, WebSphere CloudBurst 188.8.131.52 is now available for download from the IBM Support site. In some ways, this release is typical of what you may expect from a service release. In other words, there are defect fixes and other general enhancements in the new version of the firmware. However, this release is a bit more than your typical service release in that there are a couple of major additions of which you should be aware.
First, starting in WebSphere CloudBurst 184.108.40.206, you will be able to provision WebSphere CloudBurst patterns to IBM Power7 systems. We already supported both Power5 and Power6 systems, and this new addition allows you to take advantage of some of the significant enhancements in the IBM Power7 hardware. In addition, this means that from a single appliance you can provision environments to multiple different releases of VMware, IBM z/VM, and IBM PowerVM hypervisor technologies. The best thing about this is that WebSphere CloudBurst provides an effective abstraction layer over the underlying infrastructure so that no matter which of the hypervisor solutions you use, the end-user experience with the appliance remains the same. You get all of this from a single device!
The other major element in WebSphere CloudBurst 220.127.116.11 is the introduction of Environment Profiles. Traditionally, WebSphere CloudBurst controlled most of the pattern deployment process. While this allows the appliance to provide a lot of configuration activity without input from the user, it made some usage scenarios hard to accommodate. For instance, historically you have not been able to assign specific IP addresses to machines in your deployment, and you have not been able to deploy a pattern across multiple cloud groups. Now, with environment profiles you can. Environment profiles give you more control over deployment behavior, including the ability to assign IP addresses (as opposed to WebSphere CloudBurst automatically doing so), deploy parts across multiple cloud groups, and apply virtual machine naming standards. The use of these new resources is completely optional, so you can still use the traditional deployment model, but this provides you with flexibility if you so choose. You can learn more about this new capability by watching the short demonstration here.
As an aside to the above information concerning WebSphere CloudBurst 18.104.22.168, I should also point out new WebSphere Hypervisor Edition announcements detailed here. I encourage you to read the announcement, but to summarize there are two major pieces of information. First, when you buy PVUs of entitlement for WebSphere Application Server Hypervisor Edition or WebSphere Message Broker Hypervisor Edition, those entitlements also apply to WebSphere Application Server and WebSphere Message Broker respectively. You can use the Hypervisor Edition images and traditional software packages in any combination, up to the level of use based on your Hypervisor Edition entitlements. Second, there is a new licensing for WebSphere Application Server Hypervisor Edition called IBM HTTP Server for WebSphere Application Server Hypervisor Edition. This allows you to deploy IBM HTTP Server instances using the WebSphere Application Server Hypervisor Edition without paying for the full Hypervisor Edition license. Again, for more details and term information, please read the announcement referenced previously.
There will be more to come about WebSphere CloudBurst 22.214.171.124, including an article on the use of environment profiles, but I wanted to give everyone a quick heads up. Let me know if you have any questions or feedback for us.
A couple of weeks ago, I dropped by the Intel Developer Forum to present a session and listen in on a few others. As always in these types of shows, I learned quite a bit. Most strikingly though, I was reminded of something that is probably quite obvious to many of you: Consumer interest in cloud computing will not be letting up any time soon.
Based on this, and some of the other things I heard at the show, I decided to catch up with fellow IBMer Marc Haberkorn. Marc is an IBM Product Manager and is responsible for IBM Workload Deployer amongst other things. I asked him about IBM Workload Deployer, the competition, and cloud in general. Check out what Marc had to say below:
Me:IBM Workload Deployer is one among many of a growing wave of cloud management solutions. How do you differentiate the focus and business value of it versus the myriad of other solutions out there?
Marc: To sum it up, we offer a combination of depth and breadth. IWD delivers both workload aware management and general purpose management. Workload aware management differentiates IWD from its competition, as it can deliver more value for the set of products for which it has context. There is a set of actions that workload aware management tools can do that is normally left to the user by general purpose management tools. This list includes configuring a middleware server to know its hostname/IP address, configuring multiple middleware servers to know of one another, arranging clusters, applying maintenance, and handling elasticity. By handling more of these activities in the automated flow, there are fewer chances for manual errors and inconsistencies to enter a managed environment.
That said, without infinite resource or time, it’s impossible to deliver this context-aware management for everything under the sun. As such, in order to allow IWD to deliver differentiated value AND allow it to handle a customer's entire environment, we offer a mix of workload-aware management and general purpose management.
Me:VMware is a good example of a company active in the cloud space, and they seem to keep a consistent pace of new product delivery. What do you think of their product development focus?
Marc: I think VMware has built a very compelling set of capability in the virtualization space. I think the main difference between VMware's suite and IBM Workload Deployer is the perspective from which the environments are managed. VMware puts the administrator in the position of thinking about infrastructure from the ground up. The administrator is thinking about virtual images, hypervisors, and scripts. In IBM Workload Deployer, we think about things from the perspective of the app, because that's ultimately what the business cares about. By providing a declarative model through which an application can be instantiated and managed, we feel we deliver a deeper value proposition to clients, through workload-aware management.
Me:The 'one tool to do it all' approach is a popular, if not hard to achieve goal. What is your advice to users when it comes to choosing between breadth and depth for cloud management solutions?
Marc: The advantages of a "one tool to do it all" are many: less integration, more uniformity, less complexity. As such, customers will always prefer a single tool when possible. This is why IBM Workload Deployer has focused on not only providing differentiated, deeper value for common use cases but also providing a way to handle the "everything else." As such, my advice to users is not to choose between breadth and depth - use IBM Workload Deployer which offers both.
Me:To close, I'm curious to know where you think we are heading in the cloud market. What do you think users will be most readily adopting over the next one to two years? Where does the cloud industry need the most innovation?
Marc: I think most users are currently looking at the broad picture of cloud computing, and have been adopting primarily in the private cloud realm. There are several reasons for this. One reason is that many customers have a large set of hardware resources which amount to sunk cost that needs to be leveraged. Another reason is around data security concerns in off-premises clouds, and still another reason is around the human factor of comfort, which has taken time to develop around off-premise cloud models. However, businesses have become increasingly comfortable with various sources of outsourcing in recent years, especially in mission critical areas involving very sensitive data. Just look at IBM's Strategic Outsourcing business, which handles entire IT operations for many large businesses. I think that trend will (and really, has already begun to) continue in the area of cloud computing, and will lead to more public and ultimately hybrid cloud computing adoption. In order to get to hybrid cloud computing, I see much of the focus and innovation being associated with data security, workload portability (across private and public, in a seamless fashion), and license transferability between private and public. When this space reaches fruition, clients will be able to enjoy true elastic economics in a computing model that allows a mixture of owning and renting compute resources and software licenses.
Yesterday, we kicked off a WebSphere in the Clouds campaign designed to connect you with IBMers that can help you to leverage WebSphere solutions to build clouds. The campaign consists of webcasts, podcasts, live Q&A sessions, and online JAMs. You can listen to replays and sign up for upcoming events by visiting the Global WebSphere Community website.
Next week, the campaign delivers a series of podcasts that discuss the WebSphere technologies that form the building blocks of clouds. These podcasts will discuss both the business and technical aspects of these solutions, and they will cover topics like application infrastructure in the cloud, policy-based workload management using application virtualization, hybrid cloud integration, and more. Over the past few days, I had the opportunity to catch up with the various presenters of these podcasts to ask them a few questions about their solutions. These interviews provide a nice sneak peak at what is coming in the podcasts, and I will be posting them here in the coming days.
To kick things off, I'm posting a video interview with Marc Haberkorn. Marc is the WebSphere Product Manager for WebSphere CloudBurst, WebSphere Application Server Hypervisor Edition, and WebSphere Virtual Enterprise. My colleague, Ryan Boyles, caught up with Marc and got his thoughts on how these solutions enable virtualization and automation for your cloud environments. Enjoy!
I spent most of my time growing up doing two things, going to school and playing sports. I made many fond memories -- mostly from the latter :) -- and learned more than a few lessons over that time. Of all of those lessons, there was one in particular that stuck out in both the classroom and on the baseball diamond: Sometimes you have to get back to the basics.
In that vein, I think it is time to revisit the basics of WebSphere CloudBurst. In revisiting the basics, I am not talking about the technical basics of the appliance. Rather, I am talking about revisiting exactly why WebSphere CloudBurst exists in the first place. In other words, let's take a look at the problem domains WebSphere CloudBurst addresses, and let's discuss a little bit about how the appliance does so.
If you follow this blog often, you know that from time to time I like to post frequently asked questions. Well, it's been a while since I have done that, and since then I have added some new questions to my list -- along with some regulars. Take a look below, and if I don't answer your question feel free to leave a comment!
Can IBM Workload Deployer deploy software that is not IBM software? Yes. You can use one of the included images as a springboard and customize them with your own software via extend and capture. Additionally, you can use the IBM Image Construction and Composition Tool (I'm getting ahead of myself here) to create your own custom images from the ground up and use those within IBM Workload Deployer.
Can I use VMotion for the systems I deploy with IBM Workload Deployer? Yes. IBM Workload Deployer has tolerated the use of VMotion since the WebSphere CloudBurst days (see the Additional Considerations section on this page for more information). IBM Workload Deployer v3 introduced the notion of virtual machine mobility initiated directly from the appliance. This capability takes advantage of VMotion in the case of VMware-based cloud environments.
Can IBM Workload Deployer deploy just a base operating system? Yes. IBM Workload Deployer v3 introduced a base operating system image that contains 64-bit Red Hat Enterprise Linux. Internally, IBM Workload Deployer uses this as the foundation on top of which virtual application patterns are deployed. You can use it to deploy virtual machines containing just the base OS, or you can customize it to deploy software of your choosing. (As an aside, IBM Workload Deployer v3.1 will include a base operating system image for AIX)
Can I automate the process of calling/using IBM Workload Deployer? Yes. IBM Workload Deployer is built to fit a specific need -- creating and managing a cloud of middleware and middleware-based workloads. In that light, it would be a shortcoming if IBM Workload Deployer did not to fit well into more holistic or enterprise-wide cloud management systems. The REST API and CLI allow you to automate the use of IBM Workload Deployer, thereby allowing it to be mashed up into other processes.
Can I group two appliances together for high availability? Yes. IBM Workload Deployer v3.1 introduces the ability to configure appliances in a master/slave setup. You can connect two appliances, allow them to share a floating IP address, and be confident that data is continuously replicated between the two. If one appliance fails, the other appliance picks up the floating IP ensuring continuous service.
Are images created using the Image Construction and Composition Tool supported for use within IBM Workload Deployer? Yes. Part of the new IBM Workload Deployer 3.1 announcement was a statement of support for using images created by the Image Construction and Composition Tool as a component of your virtual system patterns. This is a very important enhancement as it allows you to extend the set of content deployed by IBM Workload Deployer while being sure that you are operating within the boundaries of intended use.
Can I use IBM Workload Deployer to provision to public clouds? No... and yes. If you install an IBM Workload Deployer appliance in your datacenter, you cannot use it to deploy to a public cloud environment. However, you may have recently heard about the IBM SmartCloud Application Services portfolio. IBM has announced that the pattern-based provisioning that one gets with IBM Workload Deployer will also be available as part of this portfolio. This means that you will be able to build and deploy patterns using a service hosted on the IBM SmartCloud. Further, your deployed systems will run on the IBM SmartCloud. Check out this demo for more information.
** IBM Workload Deployer 3.1 firmware is available on 11/18.
I point this out about script packages because recently I put one together that is not a WebSphere Application Server administration task, but does provide configuration logic common to many WAS deployments. Specifically, I put together a script package that configures an IBM HTTP Server to be a reverse proxy server. This of course, allows clients to send requests to the IBM HTTP Server and have those requests pass through to a specified back-end destination (i.e. a service hosted on WebSphere Application Server) based on URI paths.
The script package is not all that different from many of the ones I put together. It contains a shell script (which provides configuration and orchestration logic) as well as a cbscript.json file that defines the script package's characteristics when I upload it into WebSphere CloudBurst. The notable difference in this script package is that I include a Perl script that modifies the IBM HTTP Server configuration file. This just reiterates the point that you are not limited to only wsadmin and shell scripts within your script packages.
The workings of the script package are quite straightforward. It starts with a call to the shell script that modifies the IBM HTTP Server's configuration file to ensure the loading of a couple proxy modules:
sed -i s/"#LoadModule proxy_module modules\/mod_proxy.so"/"LoadModule proxy_module modules\/mod_proxy.so"/g $HTTP_CONF
sed -i s/"#LoadModule proxy_http_module modules\/mod_proxy_http.so"/"LoadModule proxy_http_module modules\/mod_proxy_http.so"/g $HTTP_CONF
As you can see, the createProxy.pl script accepts a single argument. This argument represents the reverse proxy configuration information provided by the user during deployment. The Perl script parses the single argument and creates the appropriate proxy directives in the IBM HTTP Server's configuration file:
After the invocation of the script above, control returns to the shell script. The shell script restarts the IBM HTTP Server so that the configuration changes take place. The result is an up and running IBM HTTP Server acting as a reverse proxy based on information supplied during deployment. The listings here do not show the full script package, but I hope to have it up on our WebSphere CloudBurst Samples Gallery soon.
If the script above provides some configuration logic you can use, that is good. However, my main point for bringing it up here is to point out that WebSphere CloudBurst script packages can be more than shell and wsadmin scripts that perform WebSphere Application Server configuration tasks. You can use them to do any sort of scripted activity that is essential to your application middleware deployment process. Happy scripting!
In my last post, I concentrated on the new enhancements to WebSphere CloudBurst 126.96.36.199. One of the major new additions was the introduction of Environment Profiles, and I promised a developerWorks article would be forthcoming. The article is now live along with a demo that showcases the capability of environment profiles.
As I mentioned in my last post, environment profiles center around giving you more customization capability during the pattern deployment process. In WebSphere CloudBurst, the pattern deployment process consists of the five main steps depicted below.
Traditionally, WebSphere CloudBurst controlled the entire deployment process, thus closing it off to the deployer. Environment profiles extend the customization reach of users to be able to effect steps 1-3 in the above diagram. Specifically, environment profiles give you the following control:
Control over the assignment of IP addresses and hostnames to pattern parts: Instead of having WebSphere CloudBurst automatically assign IP addresses, and thus hostnames, to virtual machines during deployment, you can explicitly set both values during the deployment process.
Ability to deploy single patterns to multiple cloud groups: Previously, when deploying a pattern you selected a single cloud group and WebSphere CloudBurst deployed all the parts in the pattern to machines within that cloud group. While this may be okay for many cases, other cases may require you to deploy some parts of the pattern to one group of machines while other parts map to a separate set of machines. Before environment profiles, you could accomplish this with multiple patterns. With environment profiles, you can accomplish it with a single pattern.
Ability to supply virtual machine naming standards: As part of deploying a pattern, WebSphere CloudBurst creates one to many virtual machines with distinct names. Environment profiles allow you to supply a naming standard that WebSphere CloudBurst will use when creating the machines as opposed to default naming schemes previously used.
It is important to note that the use of environment profiles is completely optional, and you can continue to use the traditional deployment process, thereby leaving WebSphere CloudBurst in control. That said, the introduction of environment profiles is a direct response to consistent user feedback we received regarding the need for more control during the deployment process. Based on my user conversations, these profiles address many of said needs in an easy to use, straightforward manner. We are, of course, eager to know what you think. As always, you can let me know right here, through email, or on Twitter (@damrhein).
The 1.1.1 version of WebSphere CloudBurst is now available on the IBM support site, and you can read a bit about it here. I have not blogged about each and every point release of WebSphere CloudBurst here, but this particular one is significant. The 1.1.1 release adds support for IBM's z/VM hypervisor platform as a deployment target.
Quite simply this means that you can now create virtualized WebSphere application environments on the z/VM platform using WebSphere CloudBurst. This starts by first defining target hypervisors, instances of Linux Master Systems, that WebSphere CloudBurst can communicate with to setup virtual machines on z/VM. Coupled with support for the z/VM infrastructure components, there is a new version of the WebSphere Application Server Hypervisor Edition virtual image. While this new image contains the same basic components as the previous hypervisor edition images, it is packaged for the z/VM platform, and it includes a zLinux operating system.
Once you upgrade to WebSphere CloudBurst 1.1.1, you can define your z/VM infrastructure and use the new WebSphere Application Server Hypervisor Edition image to build custom patterns targeted for the z/VM platform. I put together a demonstration that provides a very brief overview of these new capabilities. As always, please reach out if you have any questions about this or any other WebSphere CloudBurst topic.
One of the most exciting announcements at IBM IMPACT last week was that of the new WebSphere Process Server Hypervisor Edition. This new virtual image allows you to provision complete WebSphere Process Server environments into your on-premise cloud using the WebSphere CloudBurst Appliance. Just like with the other environments you can provision using WebSphere CloudBurst (namely WebSphere Application Server, DB2, and Portal Server), you can stand up these WebSphere Process Server environments in a matter of minutes.
The WebSphere Process Server does not come pre-loaded on the appliance, but it does come with a cool utility that helps you get it on the appliance. The WebSphere Process Server Hypervisor Edition loader provides a wizard-like tool that loads the image into the catalog of an appliance you specify. The tool is simple to use and is included as part of the image package that you download from Passport Advantage.
Not only does the loader above populate the WebSphere Process Server Hypervisor Edition into the appliance's catalog, but it also creates a set of patterns for the WebSphere CloudBurst Appliance. These patterns encapsulate golden topology environments for WebSphere Process Server Hypervisor Edition. At the time of my post, the patterns created by the loader include the following:
Standalone server: This pattern represents a single server instance of WebSphere Process Server. Deployment of the pattern results in a single virtual machine that contains both the server instance and a DB2 instance.
Simulated environment: This pattern contains a single part called a 'Full function control node'. Deployment of the pattern results in the creation of a deployment manager, proxy server, DB2 environment, and three WebSphere Process Server clusters (application target cluster, support cluster, and messaging cluster), all in a single virtual machine.
Scalable environment: This pattern contains a deployment manager, 'Basic function nodes' part, DB2 part, and a proxy server. Deploying the pattern results in the same components as the pattern above, but in this case each component resides in its own virtual machine.
The announcement of the WebSphere Process Server Hypervisor Edition only serves to increase the applicability of WebSphere CloudBurst for constructing on-premise WebSphere clouds. If you have any questions, or want to learn more about this new virtual image, please let me know.
The ability to package custom maintenance packages and upload them as emergency fixes is perhaps a lesser known feature of WebSphere CloudBurst, but nevertheless something that's been around since the product's initial release. This is a powerful feature that allows you to build your own fix packages that you can then apply the same way you would use WebSphere CloudBurst to apply a PAK file or fixpack shipped by IBM.
Since IBM is delivering fixes and updates to all of the contents within WebSphere Application Server Hypervisor Edition virtual images (including the OS and IBM software components), you may wonder why you would even want to create your own maintenance packages. One reason would be if you switched out the SUSE Linux operating system shipped with the VMware ESX based images in favor of your own Red Hat operating system. In that case you would be responsible for maintenance to the operating system, and custom maintenance packages would be of interest to you. Another scenario where these custom maintenance packages come in handy would be if you created your own customized images that include non-shipped third-party software in addition to the software shipped in the images. If at some point you have the need to fix or update this software in a running virtual machine, custom maintenance packages provide you the vehicle with which to do just that.
What do these custom maintenance packages look like? In short, they are simply archives or ZIP files. The contents of the archive are largely decided by you, but there is one piece of metadata that is necessary if you want to use WebSphere CloudBurst to apply the maintenance. A file called service.xml is inserted into the root of the archive and tells WebSphere CloudBurst critical information about the custom fix archive. Here's an example of a service.xml file:
Most notably, this metadata tells WebSphere CloudBurst what module or script to invoke to apply the maintenance (Command, this executable is supplied by you), what image versions the fix is applicable to (ImagePrereqs), and the location of the working directory on the virtual machine (Location). In addition to the service.xml file and the executable, you can package up anything else, such as product binaries, which are needed to successfully apply the fix/upgrade/maintenance.
If you haven't noticed, this is an extremely flexible mechanism and can be used for just about anything. I should point out that you can only apply a given fix once per virtual machine, so it's not good for something that you want to run repeatedly against a given machine (check out user-initiated script packages instead). Also, there is a 512MB size limit on the archives. Keep these restrictions in mind when you are deciding how to use custom maintenance packages. If you are interested in learning a bit more about custom maintenance packages or other maintenance techniques, check out this article I co-authored along with Xiao Xing Liang from the IBM SOA Design Center in the China Development Lab.