etcd vs Traefik: What are the differences?
Developers describe etcd as "A distributed consistent key-value store for shared configuration and service discovery". etcd is a distributed key value store that provides a reliable way to store data across a cluster of machines. It’s open-source and available on GitHub. etcd gracefully handles master elections during network partitions and will tolerate machine failure, including the master. On the other hand, Traefik is detailed as "Load Balancer for Microservices". Træfɪk is a modern HTTP reverse proxy and load balancer made to deploy microservices with ease. It supports several backends (Docker, Swarm, Mesos/Marathon, Kubernetes, Consul, Etcd, Zookeeper, BoltDB, Rest API, file...) to manage its configuration automatically and dynamically.
etcd can be classified as a tool in the "Open Source Service Discovery" category, while Traefik is grouped under "Load Balancer / Reverse Proxy".
"Service discovery" is the primary reason why developers consider etcd over the competitors, whereas "Kubernetes integration" was stated as the key factor in picking Traefik.
etcd and Traefik are both open source tools. etcd with 25.8K GitHub stars and 5.25K forks on GitHub appears to be more popular than Traefik with 23.2K GitHub stars and 2.4K GitHub forks.
Docplanner, Viadeo, and Condé Nast are some of the popular companies that use Traefik, whereas etcd is used by Beam, CNCFlora, and Giant Swarm. Traefik has a broader approval, being mentioned in 46 company stacks & 19 developers stacks; compared to etcd, which is listed in 27 company stacks and 11 developer stacks.