Posts categorized “automation”
Using Terraform with Rackspace Public Cloud
Handling a huge scale of infrastructure requires automation and infrastructure as code. Terraform is a tool that helps to manage a wide variety of systems including dynamic server lifecycle, configuration of source code repositories, databases, and even monitoring services. Terraform uses text configuration files to define the desired state of infrastructure. From those files, Terraform provides information on the changes to be made based on the current state of that infrastructure, and can make those changes.
The Threat and Vulnerability Analysis team at Rackspace is charged with providing internal vulnerability scanning, penetration testing, and red/purple teaming capabilities to reduce cyber-based threats, risk, and exposure for the company. One of our tasks, as part of meeting certain compliance objectives, is to ensure systems are not exposed from various networking "perspectives" without going through a bastion first.
A common technical challenge for developers, operations, and IT security is the management of service account credentials used by applications. Service accounts are needed to authorize different components for communication and sharing data. This is true whether the application runs in the cloud or on-premise. The problem is that these credentials have the following issues:
- They are setup one time.
- They never expire.
- They are hard-coded into configuration files.
I want to share some design thoughts on how to make changing credentials easier.
A few months back, I decided to find a way to lighten the load of ad-hoc vulnerability scanning requests by our system owners. Our most frequent requests used to go something like this: "Can you scan this"..."Ok I fixed it, scan again."
Given the prevalence of Slack and associated bots, I thought it would be a good idea to try to write my own for scanning. Enter the InsightVM Slack Bot!
There are many ways to approach the broad topic of "security automation". After repeatedly trying new approaches, evaluating them against my assumptions and goals, and modifying them as I learn new things, I've come up with a number of helpful insights. I hope you find them useful in thinking about your own security automation goals.
Automation in Windows has historically been a challenge due to lack of built in tools for remote management. In the past few years, the enhancements to PowerShell and WinRM (Windows Remote Management) have forged a path that is now more on par with other operating systems in regards to remote access.
OpenStack SDKs exist for several programming languages, including Python, Go, Ruby, and many more. For those who don't wish to write code, users in the *nix world can use Curl at the command line to perform operations.
What about Microsoft Windows administrators? Are they required to learn linux and bash and curl? What if they could use the skills they already have, or learn new skills that are native to the Windows environment, for OpenStack administration? Is there a command line or scripting tool that suits the Windows DevOps world?
Having spent my last 7 years concentrating mainly on Linux and related technologies, I spent 3 days with PowerShell and here are the some observations and anecdotes. Why PowerShell? Curiosity for one and I wanted to learn it from a perspective of how to use it in configuration management tools like Chef. As an disclaimer, I'm not an expert in PowerShell and spending 3 days is just scraping the surface but I did learn quite a bit in that time. Also my prediction is that PowerShell will be real force (if not already) in Windows environments. It is a mindset change for several Windows administrators who have grown up on GUIs but that is about to change in the coming years. And if you are Linux administrator, you are likely to feel more comfortable interacting the PowerShell way. I definitely did.
This is a guest post written by Michael DeHaan, CTO at AnsibleWorks. AnsibleWorks provides IT orchestration solutions that simplify the way IT manages systems, applications, and infrastructure.
A while back I wrote about Ansible as a way to simply automate IT infrastructure, and showed how to achieve some interesting zero-downtime rolling update capabilities.
In the spirit of both furthering our position within the OpenStack cloud arena and making your life in the cloud much easier, Rackspace is excited to announce that over the next few months we will be expanding our capabilities around automating the orchestration of customers’ resource provisioning and application deployment.
In April, we joined forces with the OpenStack Heat Orchestration community to help round out the capabilities of the Heat project with the intent to extend the benefits of Heat Orchestration to Rackspace customers.
One of the challenges that someone maintaining a group of webservers is faced with is keeping the vhost configuration in sync accross all machines. Much like maitaining hosts files this can be solved with configuration management. There are ofcourse the usual caveats, changes made outwith of the configruation management will either be overwritern, or not syncronised between hosts, so it's imperative that those "quick changes" are actually done via the configuration management system!
If we look at the main webserver platforms in use today and look at the various CM systems, we're going to see a huge number of examples for Apache, similar for nginx, but IIS is rather thin on the ground. Lets change this!
I'm going to use SaltStack in this example, as its my Configuration Management system of choice, however the same should be able to be done for Chef, Puppet or any other system.
Maintaining hosts files on standard *nix system has been traditionally done by hand. This becomes a challenge as the number of systems grow and this is more true in the Cloud model where you might add/delete servers at a higher rate. One solution would be to use DNS and use a local zone to store your host name to IP mapping. If you are in the automation using Chef world, here is another example on how to automatically generate the host file entries.
DevOps and automation are all the rage now a days and Chef is at the forefront. I spent Thursday and Friday of last week at ChefConf in San Francisco and heard some amazing presentations. The presentations were all recorded and are available on YouTube.
I wrote last week about a couple of keynotes that I attended, which you can find here. This post will share some more of the presentations I was able to attend, but also talk about the overall key points that all the speakers referenced.
Hello from Sunny San Francisco! Today is day 1 of ChefConf, a Devops focused convention. Developers and Engineers come to ChefConf to learn about Opscode's latest features and learn from their peers. Below I'll talk about a few of the sessions I attended today.