HashiCorp Consul is a tool for discovering and configuring services in the IT infrastructure. It provides service discovery, health checking, key/value stores and support for multiple data centers out of the box.
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Ansible
Score 8.9 out of 10
N/A
The Red Hat Ansible Automation Platform (acquired by Red Hat in 2015) is a foundation for building and operating automation across an organization. The platform includes tools needed to implement enterprise-wide automation, and can automate resource provisioning, and IT environments and configuration of systems and devices. It can be used in a CI/CD process to provision the target environment and to then deploy the application on it.
Consul can provide a light-weight, lightning-fast and robust solution for the following:
Network mesh
Service DNS
Global key-value store (values can be complex objects as well)
Utility for blue-green deployments
Service health checking
Consul can be used in any or a combination of these scenarios. Regardless if you are a network administrator or a regular software engineer, Consul can add value to your work.
The thing I mentioned earlier where we're constantly dealing with federal regulations or new agents that they want us to install and deploy and just getting those out in a consistent manner in a canned installation via Playbook is ideal
Makes it easy to create and share automation in one central hub.
Ansible content collections give me the ability to reuse code, making it rapid to carry out complex IT processes.
Event-driven automation allows me to reduce manual tasks: it is rapid to know which action to take and respond automatically by receiving events from external apps automatically.
The GUI: The GUI interface for Consul has gotten a lot better over the years. Since Consul is so easy to interact with via API, this isn't a showstopper, but for those that are less command line inclined it's always nice to be able to refer them to an easy to use and understand web interface
It's chatty: Consul is extremely chatty. Sometimes it's particularly chatty at 2am with no indication as to why and eats up quite a bit of resources. Just be sure to provision your systems that typically take a heavy load with a little extra for Consul
Workflows should have more flexible paths than just success or failure.
The upgrade process can be challenging with differences in security and environment.
There is an opportunity to add CICD functionality into the tool.
For development, it would be nice to have the option of editing a repo directly from AAP to allow quick tests/reruns. Then, allow it to push the updates back or create a new branch/PR in GitHub.
The RBAC is good but could use improvements. One example would be an option that allows admins to assume the access of another user to validate it works as expected.
Consul's API is extremely user friendly. While their web interface isn't quite as "mature", it's still pretty easily navigated for the average person. Together they make a pretty easy to pick up and use tool.
Great in almost every way compared to any other configuration management software. The only thing I wish for is python3 support. Other than that, YAML is much improved compared to the Ruby of Chef. The agentless nature is incredibly convenient for managing systems quickly, and if a member of your term has no terminal experience whatsoever they can still use the UI.
I've never used paid support from HashiCorp, but I consider its support a good one, since they provide a lot of free resources for the community and there are good user groups supporting you on several sorts of issues. Also, HashiCorp is known as a company with a strong relationship with the community, that is easily noticed by the events HashiCorp promotes over the world.
There is a lot of good documentation that Ansible and Red Hat provide which should help get someone started with making Ansible useful. But once you get to more complicated scenarios, you will benefit from learning from others. I have not used Red Hat support for work with Ansible, but many of the online resources are helpful.
Consul was easier to configure out of the box than Serf and gave us more initial options. Its easy to use tools and support were by far superior to Serf in many ways. Support alone was one of those areas that Serf could take an example from Consul to keep its customers happy.
AAP doesn't truly stack up against any of the products mentioned except for Aria Automation. But, it is extensible and open and has a lower cost to entry.
It contains a native web UI, which in contrast to its counterparts, is handy, very intuitive and - most importantly - very informative. It leaves no room for doubt about your services "forest" health. So, for that purpose, the learning curve was almost down to non-existent. Our team managed to work seamlessly with Consul being our services API
Our management staff had a difficult time understanding what Consul was really all about. For technical staff it is pretty simple to understand the huge value such a tool can pose to our suite of solutions, but once our management staff took the grasp of its valuable handy set of tools, we didn't take long to start using it and keeping track of our Swarm overall health, with was a constant concern for the entire company before.
For load balancing purposes, we were relying pretty much on guesses before we decided to use Consul. One would check a certain node overall health and decide if we would need to spring a new instance at AWS or Digital Ocean.
