BMC AMI DevX is an integrated software platform that provides mainframe development teams with modern Application Development and DevOps capabilities. The solution connects traditional mainframe environments with contemporary development practices through components for source code management, testing, debugging, and analytics.
N/A
HashiCorp Terraform
Score 8.7 out of 10
N/A
Terraform from HashiCorp is a cloud infrastructure automation tool that enables users to create, change, and improve production infrastructure, and it allows infrastructure to be expressed as code. It codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned. It is available Open Source, and via Cloud and Self-Hosted editions.
I love these tools! However, my company has not yet transitioned from SCLM to a modern repository, and this is causing most of our developers to remain within TSO for all their development. It's been a slow adoption up to this point, but we are moving toward more modernization this year and next, so with any luck, we'll see usage pick up. Success depends on the speed at which your management is willing to move.
Anything that needs to be repeated en masse. Terraform is great at taking a template and have it be repeated across your estate. You can dynamically change the assets they're generating depending on certain variables. Which means though templated assets will all be similar, they're allowed to have unique properties about them. For example flattening JSON into tabular data and ensuring the flattening code is unique to the file's schema.
The tool I use is fairly intuitive. It doesn't take long to be using it full time.
Changing the layout/view is fairly easy. This allows it to fit individual preferences.
It is helpful to be able to view specific windows in full screen. Usually, I have it set up to view multiple windows, but sometimes, I just want to view one window in full-screen mode.
The language itself is a bit unusual and this makes it hard for new users to get onboarded into the codebase. While it's improving with later releases, basic concepts like "map an array of options into a set of configurations" or "apply this logic if a variable is specified" are possible but unnecessarily cumbersome.
The 'Terraform Plan' operation could be substantially more sophisticated. There are many situations where a Terraform file could never work but successfully passes the 'plan' phase only to fail during the 'apply' phase.
Environment migrations could be smoother. Renaming/refactoring files is a challenge because of the need to use 'Terraform mv' commands, etc.
I love Terraform and I think it has done some great things for people that are working to automate their provisioning processes and also for those that are in the process of moving to the cloud or managing cloud resources. There are some quirks to HCL that take a little bit of getting used to and give picking up Terraform a little bit of a learning curve, thus the rating
Terraform's performance is quite amazing when it comes to deployment of resources in AWS. Of course, the deployment times depend on various parameters like the number of resources to deploy and different regions to deploy. Terraform cannot control that. The only minor drawback probably shows up when a terraform job is terminated mid way. Then in many cases, time-consuming manual cleanup is required.
Support has been amazing compared to Optim. Further, new features are very regular with File-AID - I can't remember the last time Optim had a significant update. File-AID support is very receptive to feature requests and reported bugs, including sending out hotfixes quickly.
I have yet to have an opportunity to reach out directly to HashiCorp for support on Terraform. However, I have spent a great deal of time considering their documentation as I use the tool. This opinion is based solely on that. I find the Terraform documentation to have great breadth but lacking in depth in many areas. I appreciate that all of the tool's resources have an entry in the docs but often the examples are lacking. Often, the examples provided are very basic and prompt additional exploration. Also, the links in the documentation often link back to the same page where one might expect to be linked to a different source with additional information.
The names may have changed over the years, but anyone who has been around for a while will recognize them. For Software Configuration Management, I have used TSO/ISPF/SCLM, Panvalet, ChangeMan, Librarian, Endevor, and now Code Pipeline. All of them met the basic requirements. All of them had their advantages and disadvantages. Code Pipeline, however, stands head and shoulders above the rest in simplicity, completeness, effectiveness, efficiency, and elegance.
Terraform is the solid leader in the space. It allows you to do more then just provisioning within a pre-existing servers. It is more extensible and has more providers available than it competitors. It is also open source and more adopted by the community then some of the other solutions that are available in the market place.
Possitive impact. It is main product suite to enable devops in the mainframe applications team. All developers use these on day-to-day work.
Negative impact: Recent usability issues caused disappointment in the application teams. It became hard motivate the development community to increase usage.
we are able to deploy our infrastructure in a couple of ours in an automated and repeatable way, before this could take weeks if the work was done manually and was a lot of error prone.
having the state file, you can see a diff of what things have changed manually out side of Terraform which is a huge plus
if state file gets corrupted, it is very hard to debug or restore it without an impact or spending hours ..
writing big scale code can be very challenging and hard to be efficient so it's usable by the whole team
