Consul vs CoreDNS: What are the differences?
Consul: A tool for service discovery, monitoring and configuration. Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable; CoreDNS: DNS and Service Discovery. CoreDNS is a DNS server. It is written in Go. It can be used in a multitude of environments because of its flexibility.
Consul belongs to "Open Source Service Discovery" category of the tech stack, while CoreDNS can be primarily classified under "DNS Management".
Some of the features offered by Consul are:
- Service Discovery - Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface. External services such as SaaS providers can be registered as well.
- Health Checking - Health Checking enables Consul to quickly alert operators about any issues in a cluster. The integration with service discovery prevents routing traffic to unhealthy hosts and enables service level circuit breakers.
- Key/Value Storage - A flexible key/value store enables storing dynamic configuration, feature flagging, coordination, leader election and more. The simple HTTP API makes it easy to use anywhere.
On the other hand, CoreDNS provides the following key features:
- Service Discovery
- Fast and Flexible
Consul and CoreDNS are both open source tools. It seems that Consul with 16.4K GitHub stars and 2.85K forks on GitHub has more adoption than CoreDNS with 4.32K GitHub stars and 695 GitHub forks.
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