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