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Google Compute Engine

To deploy {{site.prodname}} in Google Compute Engine (GCE), you must ensure that traffic between containers on different hosts is not dropped by the GCE fabric. There are a few different options for doing this depending on your deployment.

IP-in-IP encapsulation

Container traffic routing can be enabled by setting IP-in-IP encapsulation and NAT outgoing on the configured {{site.prodname}} IP pools.

See the IP pool configuration reference for information on how to configure {{site.prodname}} IP pools.

GCE cloud routes

Traffic routing in GCE can be achieved by utilizing GCE cloud routes and running {{site.prodname}} in policy-only mode. Kubernetes GCE cloud provider integration simplifies route configuration by enabling Kubernetes to handle creating routes.

Enabling workload-to-WAN traffic

To allow {{site.prodname}} networked containers to reach resources outside of GCE, you must configure outgoing NAT on your {{site.prodname}} IP pool.

GCE will perform outbound NAT on any traffic which has the source address of a virtual machine instance. By enabling outgoing NAT on your {{site.prodname}} IP pool, {{site.prodname}} will NAT any outbound traffic from the containers hosted on the virtual machine instances.

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