TrustRadius Insights for HashiCorp Consul are summaries of user sentiment data from TrustRadius reviews and, when necessary, third party data sources.
Pros
Ease of Integration: Users have found Consul relatively easy to operate and admire its compliance with cloud-native standards, making it seamless to integrate with other HashiCorp stacks like Nomad and Vault. They appreciate how Consul simplifies the process of connecting different services within their infrastructure.
Service Discovery: Reviewers highly value the availability of essential documentation and tutorials for all HashiCorp products, including Consul. They specifically mention that Consul stands out as one of the best service discovery tools available in the market. Its ability to be used in a polyglot architecture without being bound to any specific language is particularly highlighted.
High Availability: Many users find Consul invaluable when it comes to defining infrastructure with high availability and fault tolerance. They highlight how Consul facilitates the creation of a highly reliable infrastructure based on top of preemptible VMs, ensuring that services remain accessible even if individual nodes experience downtime or failures.
Consul is currently being used at our company across multiple teams in both development and operations. We use Consul as a back-end for Vault, we use Consul as a means to do service discovery and health checks, and we also use the Consul K/V store to coordinate runs of our configuration management platform, Chef.
Pros
Service Health: Using Consul for service health/discovery has been critical to our success in a hybrid environment
K/V Store: The Consul K/V store is the best solution out there for our particular use case, which is as a locking mechanism to coordinate otherwise random runs of our configuration management system. This has allowed us to have peace of mind of system availability in our on-prem infrastructure.
API: The Consul API as a whole is excellent and extremely easy to work with
Documentation: Hashicorp really does documentation well. Their examples are easy to follow and everything is written in a manner that is easy to understand for beginners with the tool.
Cons
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
Likelihood to Recommend
Right now, I would wager to say that Consul is the best cloud agnostic solution for service health/discovery and for integrating with Vault (for obvious reasons).
Consul is being used by the IT department to help create efficiencies across the company. Because we are a multi-data center environment we rely on Consul's monitoring to keep us alerted properly. Our DNS and services get a big boost while making our engineer's jobs easier. I highly recommend this product for any IT department.
Pros
Consul makes keeping our DNS up to date very simple and easy.
Configuration changes are a snap when Consul is involved.
All of our services register easy and we sleep better knowing Consul is on the job.
Cons
We would like to see more out of the box training for Consul use.
Best practice examples would be nice for routing.
The agent could be easier to run.
Likelihood to Recommend
Consul is well suited for both SMB as well as enterprise environments. I have found it to be a robust scalable tool to help make our company more efficient. Consul excels in a single database or a multi-database environment which makes searches easier. Small businesses might find this a bit overkill as a product but it can still benefit them.