Envoyer vs linkerd: What are the differences?

Envoyer: A brand new way to deploy PHP and Laravel applications with zero downtime. Envoyer deploys your PHP applications with zero downtime. Just push your code, and let Envoyer deliver your application to one or many servers without interrupting a single customer. In this series, we'll discuss each feature of Envoyer, demonstrating how to use them with a sample project; linkerd: Twitter-Style Operability for Microservices. linkerd is an out-of-process network stack for microservices. It functions as a transparent RPC proxy, handling everything needed to make inter-service RPC safe and sane--including load-balancing, service discovery, instrumentation, and routing.

Envoyer and linkerd are primarily classified as "Platform as a Service" and "Microservices" tools respectively.

Some of the features offered by Envoyer are:

• GitHub / Bitbucket Integration
• Seamless Deployment Rollbacks
• Deploy To Multiple Servers

On the other hand, linkerd provides the following key features:

• Adaptive load-balancing
• Fine-grained instrumentation
• Abstractions over service discovery

linkerd is an open source tool with 5.02K GitHub stars and 501 GitHub forks. Here's a link to linkerd's open source repository on GitHub.