Virtual container extended network virtualization in server cluster

According to one or more embodiments, a computer implemented method includes deploying a first virtual container to host an instance of a first computer application that is non-native to an operating system of a computer server. The method further includes allocating a virtual internet protocol address (VIPA) to the first virtual container. The method further includes creating a first virtual network interface card (NIC) associated with the first virtual container, and creating, by the virtual NIC, an internal route for the first virtual container to communicate with the internal router, the first virtual container being one hop behind a physical NIC of the computer server. The method further includes receiving a request to execute a second computer application that is native to the operating system, and in response, instantiating an instance of the second computer application, and allocating, a second VIPA to the instance of the second computer application.