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website/source/guides/integrations/consul-connect/index.html.md
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~> **Note** This guide describes a new feature available in the [Nomad 0.10.0 ~> **Note** This guide describes a new feature available in the [Nomad 0.10.0
Connect Technology Preview release][download] of Nomad for [Hashiconf EU Connect Technology Preview release][download] of Nomad for [Hashiconf EU
2019][hashiconfeu]. This is not intended for production use and has many known 2019][hashiconfeu]. This is not intended for production use and has many
[limitations](#limitations). known [limitations](#limitations).
[download]: https://releases.hashicorp.com/nomad/0.10.0-connect1/ [download]: https://releases.hashicorp.com/nomad/0.10.0-connect1/
[hashiconfeu]: https://hashiconfeu.hashicorp.com/schedule/service-mesh-with-consul-connect-and-nomad-0.10 [hashiconfeu]: https://hashiconfeu.hashicorp.com/schedule/service-mesh-with-consul-connect-and-nomad-0.10
[Consul Connect](https://www.consul.io/docs/connect/index.html) provides service-to-service connection [Consul Connect](https://www.consul.io/docs/connect/index.html) provides
authorization and encryption using mutual Transport Layer Security (TLS). Applications can use sidecar proxies in a service mesh service-to-service connection authorization and encryption using mutual
configuration to automatically establish TLS connections for inbound and outbound connections Transport Layer Security (TLS). Applications can use sidecar proxies in a
without being aware of Connect at all. service mesh configuration to automatically establish TLS connections for
inbound and outbound connections without being aware of Connect at all.
# Nomad with Consul Connect Integration # Nomad with Consul Connect Integration
Nomad integrates with Consul to provide secure service-to-service communication between Nomad integrates with Consul to provide secure service-to-service communication
Nomad jobs and task groups. In order to support Consul Connect, Nomad adds a new networking between Nomad jobs and task groups. In order to support Consul Connect, Nomad
mode for jobs that enables tasks in the same task group to share their networking stack. With adds a new networking mode for jobs that enables tasks in the same task group to
a few changes to the job specification, job authors can opt into Connect integration. When Connect share their networking stack. With a few changes to the job specification, job
is enabled, Nomad will launch a proxy alongside the application in the job file. The proxy (Envoy) authors can opt into Connect integration. When Connect is enabled, Nomad will
launch a proxy alongside the application in the job file. The proxy (Envoy)
provides secure communication with other applications in the cluster. provides secure communication with other applications in the cluster.
Nomad job specification authors can use Nomad's Consul Connect integration to implement Nomad job specification authors can use Nomad's Consul Connect integration to
[service segmentation](https://www.consul.io/segmentation.html) in a implement [service segmentation](https://www.consul.io/segmentation.html) in a
microservice architecture running in public clouds without having to directly manage microservice architecture running in public clouds without having to directly
TLS certificates. This is transparent to job specification authors as security features manage TLS certificates. This is transparent to job specification authors as
in Connect continue to work even as the application scales up or down or gets rescheduled by Nomad. security features in Connect continue to work even as the application scales up
or down or gets rescheduled by Nomad.
# Nomad Consul Connect Example # Nomad Consul Connect Example