What a white paper should container

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View with Adobe Reader on a variety of devices Updated: Using a group-based click at this page model, Cisco ACI was designed in anticipation of the significant shift now occurring toward Linux containers and microservices.

Containers offer a lightweight, operating system—level virtualization technology that makes applications extremely easy to build, package, and run. Docker, the dominant container runtime, has become one of the most popular open-source projects of all papfr.

  • Using a group-based policy model, Cisco ACI was designed in anticipation of the significant shift now occurring toward Linux containers and microservices.
  • They also allow applications to be distributed across the cloud and moved around in a virtual fashion.
  • Microservice architectures are an approach to building complex applications through small, independent components that communicate with each other over language-independent APIs.

Because containers run on the same operating system, they are lighter weight than virtual machines and make more efficient use of shared resources such as the file system and RAM. Therefore, containers can be launched and run faster than virtual machines. Running applications in different containers dhould namespace isolation and resource control.

It also provides modularity, with the flexibility to port what a white paper should container given application from one infrastructure to another, unlike in a hypervisor environment. Also, because resources share whzt same kernel and operating system, they can be brought up and taken down much more quickly, allowing faster application scalability during peak use.

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A growing number of open-source container applications are now available, enabling end users to simply run in their environment applications that have been developed by other users using tools such as Docker. These applications are available in the web at shared repositories such as Docker Hub. Figure 1 compares hypervisor and container environments. Hypervisor Environment Compared to Container Environment The emergence of Docker containers and the underlying support in the Linux kernel has enabled a shift in the way that applications are designed and built, using new microservice architectures.

Microservice architectures are an approach to building complex applications through small, independent components that communicate with each other over language-independent APIs.


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This model specifically matches the application-centric model developed in Cisco ACI, in which endpoint groups EPGs represent each microservice and contracts represent APIs. This strong alignment makes Cisco ACI well suited to container-based technology. This document describes how Cisco ACI integrates with Docker containeer, using a new open-source project called Contiv, which offers a Docker network remote plug-in, available for Docker Release 1. Cisco ACI and Docker Integration The integration of Cisco ACI with Docker containers allows an end contaner to create containers either directly through the Shoul command-line interface CLI or through higher-level tools such as Docker Compose.

The user can also join the service tiers in a multihost cluster and automate the creation of network policy in the Cisco Application Policy Infrastructure Controller APICallowing communication for the given containers. Cisco ACI views containers just like any computing resource, and through this integration containers are mapped transparently to EPGs in the controller without the need for additional end-user intervention.

Whatt EPG-to-container mapping is intuitive and enables end users to benefit from Cisco ACI capabilities such as multitenancy, security, performance, and mobility. Cisco ACI brings an intuitive structure to container networking.

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Users can easily define and integrate their dynamic container networking needs in Cisco ACI. This capability integrates containers into an infrastructure that may already include multiple computing contaier such as bare-metal servers, Layer 4 through Layer 7 L4-L7 appliances, and VMware, Microsoft, and OpenStack and Kernel-based Virtual Machine KVM solutions.

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For Cisco ACI, a container is just another application as depicted in Figure 2. Containers Are Applications That Integrate Intuitively into a Cisco ACI Policy-Based Data Center Cisco ACI integration with containers allows end-users to build a network that reflects the way that software for containers functions shoulr then add management and system controls.

They also allow applications to be distributed across the cloud and moved around in a virtual fashion. Cisco ACI and Container Integration Architecture The host plug-in is responsible for mapping containers to VLAN or Virtual Extensible LAN VXLAN segments that can be mapped to Cisco ACI EPGs. The paper outlines how they white transitioning to a sleeker, container-based model, should container Docker and Kubernetes container orchestration and clustering. Take Lithium Technologies, for example. Therefore, containers can be launched and run faster than virtual machines. This enthusiasm, in part, led to a whole day blocked out for containers at the OpenStack Summit in Vancouver this past May. Here are the most compelling reasons to adopt containers today, according to the authors of the paper: Project Contiv has two critical components that continue reading integration:

This approach is significantly different from that of other software-defined networking SDN xhould, in which the network is built based on the management tools, which then try to adapt the network so that containers can function with it. Architecture The integration of Docker containers with Cisco ACI is enabled through the Docker networking plug-in offered by an open-source project called Contiv.

The Contiv syould is designed to offer operational policy control to container environments, and it offers an open architecture in which APIC drivers can be added. Project Contiv has two critical components that enable integration: It manages operation policies in the cluster and helps ensure that these policies are rendered accurately. Actions include pushing policies to the infrastructure controller using shoule component, itself running in a container, called aci-gw.

What a white paper should container

It handles container settings and helps ensure that container networking is configured to map appropriately to an EPG in Cisco ACI. Oaper 3 shows the integration of Cisco ACI and container architecture. Cisco ACI and Container Integration Architecture The host plug-in is responsible continer mapping containers to VLAN or Virtual Extensible LAN VXLAN segments that can be mapped to Cisco ACI EPGs.

Today, the integration can be implemented directly through the Docker CLI or what a white paper should container Docker Compose. Additional management tools such as Kubernetes and Mesos will be integrated in the future. Conclusion The integration of containers into Cisco ACI is intuitive. This integration, enabled by the Contiv project, offers the structure and policy benefits of Cisco ACI and adds new, highly scalable, and fast evolving containers to the data center environment and infrastructure.

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3 Comments
  1. What a white paper should container
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    Kazimuro 21.04.2017 in 10:09

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