About two weeks ago, I had the opportunity to work with the WebSphere sMash, DB2, and Rational teams on a pretty exciting project. It started during a meeting with the sMash team in which they decided to build a sample application to demonstrate at the Web 2.0 Expo in San Francisco last week. Given the lead team the first thought was to simply show off the application at various IBM expo booths. However, we quickly decided the best way to show off the coolness of sMash was to put it in the hands of users. This led us down a path that would include Rational EGL capabilities, the WebSphere sMash Amazon Machine Image (AMI), and the DB2 AMI.
In a little over a week, we delivered a meaningful Web 2.0 application and put it in the hands of conference attendees. Using WebSphere sMash, we produced services that allowed users to view and search for booths at the conference. Each booth at the conference started with a list of keyword tags, and users could add more tags to let other users know what to expect at the booth. We also delivered a Buzz feature that displayed an aggregated feed from both Twitter and Flickr containing entries about the Web 2.0 Expo.
The Rational team, which was already working on an EGL application that would run on attendee handhelds, leveraged the services from our new sMash application, being hosted on the Amazon EC2 infrastructure, to add to their capabilities. Our decision to host the sMash application on EC2 was driven by two factors. The first was that we had virtually no time to go through the in-house server acquisition process. Second, given sMash’s capabilities to export and import applications, we were easily able to transfer our local application copy to the AMI instance with no code change. Once the application was imported into the running AMI instance, we changed a single configuration file to reference our newly running DB2 AMI instance which stored the booth data for the expo.
I just thought I’d share this example to highlight a couple of cool technologies, Rational EGL and WebSphere sMash, and to illustrate a scenario in which the IBM Amazon Machine Images deliver value. If you have any questions or want to see some of the application code, send us an email. Here's a couple of screen shots of the application:
In my prior job at IBM, I was, on more than one occasion, reminded of the pains of dealing with software development tools. It seemed to be a constant battle to keep up with licenses, install critical fixes, and update to the latest version of whatever tool I happened to be using. Since I often worked on projects across multiple machines, I had to ensure that versions of the tool on different machines were reasonably close and that any code formatting settings were consistent across the different tool instances. On top of this, the tools were sometimes so CPU intensive that multitasking on the same machine running the tool was impossible.
All of the above pains were a direct function of the tools being installed on my local machine, so you can imagine my interest in a recent announcement by IBM signaling the launch of a pilot program offering Tools as a Service. The program, initially offered to students and faculty of selected universities, delivers hosted software development tools to developers. Users of the development tools do not install, maintain, or run the products on their local machine, instead they access them through a cloud maintained by IBM. The tools can be accessed from any machine with an internet connection, and a developer's sandbox is persisted across multiple sessions. The developer simply logs in, does work, and at some point saves his/her changes and logs out. The saved changes can be accessed at some point in the future from the same machine or an entirely different one.
This is exactly what I needed! Like many developers, I wanted to focus on writing code not maintaining a suite of tools. I for one hope this eventually extends beyond a pilot program and becomes a mainstream practice. You can read more about IBM's Tools as a Service initiative here.
The concepts that govern users and user groups in WebSphere CloudBurst are fairly basic, but I get asked about them enough that I believe they warrant a short discussion. First things first, you can define users in WebSphere CloudBurst and optionally define user groups to assemble users into logical collections. For both users and user groups, you can assign roles that define the actions a particular user or group of users can take using the appliance.
All of that is straight forward, but it can get a bit tricky once we start considering the effects of user permissions when managing at the user group level. The basic premise is that when a user belongs to a group or groups, the user's effective permissions are a sum of the permissions to all of the groups to which they belong. While that is easy to say, and maybe even to understand, I feel like an example always helps.
Consider that we have a single user WCAGuy that belongs to the PatternAuthors, ContentCreators, and CloudAdmins groups. The permissions for those groups are as follows:
PatternAuthors: Users in this group have permission to create and deploy patterns
ContentCreators: Users in this group have permission to create catalog content as well as create and deploy patterns
CloudAdmins: Users in this group have permission to administer the cloud, create catalog content, and create and deploy patterns
Naturally then, it follows that the WCAGuy user can administer the cloud, create catalog content, create patterns, and deploy patterns. So then, what happens if we remove the WCAGuy user from the CloudAdmins user group? Well, as you may expect, there is an update to the user's permissions. The WCAUser user can no longer administer the cloud, but they can still create catalog content, create patterns, and deploy patterns (owing to their membership in the other two groups). Similarly, if we next removed the WCAGuy user from the ContentCreators group, then the user would retain only the permission to create and deploy patterns.
Just one more thing, let's talk about what happens when I remove a user from a group and they no longer belong to any groups. Consider that I created the WCAGuy user with the permission to create catalog content as well as create and deploy patterns. Next, I added the user to the CloudAdmins group, meaning the user now has the permission to administer the cloud. I promptly decide that the user has no business with those permissions, so I remove the user from the CloudAdmins group. What happens? The user retains the permission set of the last group to which they belonged. In this case, that means the WCAGuy user retains cloud administration rights. I have to update the user's permission set if I want to take that right away, but in this case, it will not automatically disappear upon removing them from the CloudAdmins group.
I hope this helps clear up any ambiguity you may have had concerning users, user groups, and permission sets in WebSphere CloudBurst.
In a previous post, entitled Layers of Elasticity, I talked about the new dynamic virtual machine operations in WebSphere CloudBurst. Specifically, I showed you how to use the WebSphere CloudBurst web console to add more virtual machines (nodes) to an existing virtual system. Well, you can do this with the WebSphere CloudBurst command line interface as well.
First, let's assume I start off with a basic WAS ND environment represented by the pattern below:
When I deploy this pattern in WebSphere CloudBurst, I end up with two virtual machines: one for the deployment manager with an embedded IHS instance, one for my custom node federated into the cell. After deployment, suppose I want to use the CLI to interact with this virtual system. Assuming the name of my virtual system is Cluster, I can view my custom node virtual machine with the following CLI code:
The call to the clone function above takes care of creating a new profile and federating the new node into the cell. In addition, WebSphere CloudBurst automatically invokes any script packages from the source virtual machine marked to run at virtual system creation. All because of this single line of code!
The WebSphere CloudBurst CLI is a powerful interface that enables you to automate the function of the appliance. Check it out, become familiar with it, and make WebSphere CloudBurst processes a seamless part of your overall data center management approach.
One of my favorite things to do is create content that you, our users, can directly use to adopt and implement our products. Luckily for me, my job allows me to spend a considerable time doing just that for our WebSphere CloudBurst Appliance. In the course of this kind of work, I use multiple different mediums to hand over what I hope is helpful content to you. This includes blogs, articles, demos, and the WebSphere CloudBurst Samples Gallery.
While I like creating content for all of these forums, if I had to pick a favorite, I'm going to go with the samples gallery every time. The reason for this is simple. Users can download and directly use the content in the samples gallery. The samples gallery plays host to script packages, CLI scripts, and other tools that are ready to use with WebSphere CloudBurst (of course, one can also extend these or simply use them as reference). Further, the samples in the gallery are mostly direct responses to suggestions or requests I get from users regarding this type of content, thus increasing its usefulness and relevance.
A good example of the kinds of assets in the gallery is the latest script package I put out there. Recently, I was talking to a user and asked, 'What do you do every single time you establish a WebSphere Application Server environment?' He outlined a few different tasks, one of those being the creation of virtual hosts in the server's configuration. The creation of virtual hosts piqued my interest because many users do that, and the configuration logic itself is fairly consistent regardless of the administrator doing the task. Therefore, I set about creating a sample script package that you can use to create virtual host configuration in WebSphere Application Server.
The script package does two things. It creates virtual host entries, and it configures host aliases for these entries. The script allows the user to supply the data for the entries and aliases they want to create via a properties file. The properties file is pretty basic and allows for the configuration of multiple host aliases for each virtual host entry. Here is an example properties file:
The script package parses the data from a properties file like the one above, and it creates the appropriate WebSphere Application Server configuration. If you are using WebSphere CloudBurst and this kind of configuration task is common for your deployments, you may want to download this free sample. I also want to point out that there are quite a few more samples that are completely free for you to download in the gallery. Check them out and let me know what you would like to see in the samples gallery!
One of the things I haven't written about much here is how the WebSphere CloudBurst Appliance integrates with other IBM software solutions. One of those interesting integration scenarios, and one I think is particularly useful for developers, involves Rational Build Forge.
Very simply put, Rational Build Forge is an adaptive execution framework that allows users to define completely automated workflows for just about any purpose. These workflows are represented as projects that contain a discrete number of steps. When looking at Rational Build Forge through the software assembly prism, the offering allows users to fully automate and govern the process of building, assembling, and delivering software into an application environment.
Now, on to the integration of WebSphere CloudBurst and Rational Build Forge. Users can build custom patterns in WebSphere CloudBurst that include a special script package (which I'll eventually provide a link to from here). This script package provides the glue between the deployment process in WebSphere CloudBurst and Rational Build Forge. When deploying a WebSphere CloudBurst pattern that contains this script package, users provide the name of a Rational Build Forge project as well as information about the Rational Build Forge server on which the project is defined.
Once the necessary information is supplied, the deployment process gets underway. Toward the end of the deployment, like all other scripts included in patterns, the special Rational Build Forge script is invoked. This results in the project specified during deployment being executed on the virtual machine created by WebSphere CloudBurst.
Because the Rational Build Forge project executes on a virtual machine setup by WebSphere CloudBurst, the individual steps of the project can very easily access the WebSphere Application Server environment. Thus, the Rational Build Forge project could very easily contain steps to build, package, and deploy an application into the WebSphere Application Server cell. The result is a fully automated process that includes everything from standing up the application environment to delivering applications into that environment.
I put together a short demonstration of this integration, and you can take a look at it here. As always, please let us know if you have any questions or comments. Your feedback is much appreciated!
It's about the time of year when we all look back and try to determine exactly how we spent the past twelve months. Whether we do it because we have to as part of year-end job reviews or because we like to take stock in what we've done and figure out where to improve next year, it's a time for reflection and recall. For me, this exercise made me take a look at various things we have done to deliver WebSphere CloudBurst technical collateral (articles, demos, blogs, etc.) in 2009.
For all practical purposes, our mission and efforts for such technical collateral for WebSphere CloudBurst started when it was announced at Impact in May of this year. Though there was certainly some preparatory work being done on this front, there was nothing we could really push to the public until after the announcement, and in some cases even after the appliance's release in June. Given that most of the content was produced over a six month stretch, I really think we put forth a strong effort, and I hope that this technical material has helped to both raise awareness of and educate users on the WebSphere CloudBurst Appliance.
Seeing as I already went back and rounded up this content, I thought I'd provide you a centralized look at the information. To start, I accounted for the articles that we published to the IBM developerWorks site over the six month stretch. All together I counted 8 articles and a special column entry:
As you can see the articles cover quite a bit of content and range from general level overview articles to technical in-depth "how-to" style articles. In general they seem to have been received well with over 26,000 views to this point. Our goal is to keep the pace up for 2010, and we already have a few articles on our plate for early in the new year (including an overview of what's new in WebSphere CloudBurst 1.1).
Another main medium we utilized to spread the word about WebSphere CloudBurst was YouTube. On our YouTube channel at http://youtube.com/websphereclouds, we currently have 17 different videos that demonstrate how to use certain features of the WebSphere CloudBurst Appliance. Though I think each demo provides value depending on exactly what a viewer is looking for, 3 of them really stick out for me.
Check out our videos if you get a chance. We've made an effort to keep them as short as possible while still providing value to viewers.
We have some WebSphere CloudBurst content spread around other places as well including this blog and my personal blog. Over the next few weeks we'll be taking a look at what worked and didn't work with respect to getting information out to the public. Of course at any time we very much appreciate your feedback on how you like to see content delivered because you are our target audience! If you have a comment, idea, or suggestion, leave a comment on the blog or send me a tweet to @WebSphereClouds.
For this post, I'm turning the tables. Usually, I try to write about things that I think are helpful, or I try to answer some pretty commonly asked questions. I hope that at least a few of these posts have been helpful, but today I am not going to take a shot at what may (or may not) be useful. Nope. Today, I want to ask you: What do you want to know?
To be clear, I'm asking this question in two scopes:
What do you want to know about WebSphere CloudBurst and our IBM Hypervisor Edition images?
What do you want to know about emerging software technologies and trends?
For the first question, you may think I'm engaging in a bit of lazy web behavior. To be fair, that may be partially true, but I really want to make sure that these blogs either continue to stay relevant for you or that they begin to become more relevant for you. I'm open for any kinds of questions, queries, feedback, etc., so please fire away.
The second question is in reference to something new we are just starting in conjunction with SMEs from the IBM labs. We are going to be posting interviews with experts from the IBM labs about the things our users (you) want to know. This could be emerging trends, common development pain points, new product offerings, or anything else that comes to your mind. Again, anything goes, so send me your thoughts, questions, ideas, feedback, etc.
So, I'm leaving you with some homework: give me some answers for these two questions. You can help to steer the direction of this blog as well as the direction of our interview sessions with IBM experts. Leave me a comment here, reach out to me on Twitter (@damrhein), or send me an email.
IBM Workload Deployer v3.1 firmware has been released and is available for download. V3.1 includes many improvements, building upon the solid foundation that was laid in V3.0 and earlier releases of WCA. There are many improvements and enhanced features. Dustin already alluded to a few of these in his previous post but let me list again here some of the more prominent new features:
The ground breaking capabilities offered in our Virtual Application Patterns have been extended to include deployments for AIX on PowerVM - giving you more choices for your private cloud environment. Along with this support a new base operating system image for AIX is also available for extension using either extend and capture or the IBM Image Construction and Composition Tool. Of course, Virtual System Patterns continue to be supported on all three private cloud hypervisors we support: VMWare, PowerVM, and zVM.
A new version of the Web Application Pattern Type (formerly WebApp Pattern Type) has been released. The Web Application Pattern Type V2.0 is built upon the feature rich WebSphere Application Server V8.0 release.
The DBaaS Pattern Type has been updated and is now the IBM Database Patterns 1.1 which includes both the IBM Data Mart Pattern 1.1 and the IBM Transactional Database Pattern 1.1 (OLTP - the default). These pattern types support a broader range of offerings for both production and non-production use. You can choose to create a new type of workload standard to apply to the DB instance or you can choose to clone an existing DB image that has been backed up to your DB image catalog repository.
A number of improvements have been made to the shared services leveraged by Virtual Application patterns. The caching service used to persist session data when scaling a web application can itself now be configured to scale, adjusting to increased demand. We have also extended the shared services to support external caching services and to leverage an external monitoring service based upon Tivoli Enterprise Monitoring Server (TEMS). You can also deploy multiple instances of shared services by deploying to multiple cloud groups.
The Plugin Developer Kit that was previously released to support building your own plugins and pattern types for Virtual Application patterns is now available for download directly from the IBM Workload Deployer dashboard - making it even easier to gain access and experience using this extension mechanism to deliver your own custom plugins and pattern types.
Images created using the IBM Image Construction and Composition Tool are now fully supported in IBM Workload Deployer V3.1 Virtual System patterns. Furthermore, the IBM Image Construction and Composition Tool is now a generally available product that is fully supported and available for download directly from the IBM Workload Deployer dashboard.
Speaking of Virtual System Patterns - a new hypervisor edition image of WebSphere Application Server V8 is now delivered with the appliance. WebSphere Application Server V8 fully supports the JavaEE6 programming model and includes many other programming models directly in the base image that were previously delivered only as feature packs including OSGi, JPA, and many more.
One item already mentioned by Dustin is the ability to configure multiple IBM Workload Deployer appliances in a master/slave relationship with a floating IP address to support continuous availability in the event that the master become unavailable. This feature can also be leveraged to support continuous operation while performing maintenance.
Another key appliance improvement is increased appliance security through the introduction of several new security roles for separation of duties. This is to ensure that no single user has unrestricted control without oversight. Among the new roles is an auditing role and auditing operations to provide data for forensic analysis of security attacks and better assist with compliance with the Health Insurance Portability and Accountability Act (HIPAA) and the Sarbanes Oxley Act (SOX).
We believe that these new features and several more make the value proposition delivered by IBM Workload Deployer V3.1 an even more compelling offering that can increase agility, consistency, and time to value for your applications. You can download IBM Workload Deployer V3.1 from IBM Fix Central. Please let us know what you think!
Though I feel like we've come a long way in some of the initial confusion surrounding IBM CloudBurst and WebSphere CloudBurst, I still get quite a few basic questions on the solutions. The two most common questions are, 'Are they different products?', and 'Can/should I use them together?'. I put together a really brief overview that answers these questions and talks about the basics of the combined solution. I hope it provides a good introduction!