Reservation for a multi-machine application

A non-transitory machine-readable medium storing instructions executable by a processing resource to cause a computing system to:

• create a reservation of information technology resources from a cluster of container hosts, wherein each container host comprises a respective virtual machine including a container virtualization layer and a respective networking agent;
• create a plurality of single-machine blueprints from the reservation each single-machine blueprint including a respective container image;
• create a multi-machine blueprint from the plurality of single-machine blueprints;
• define networking for the multi-machine blueprint via an interface with the respective networking agents, which facilitate creation of a network according to the definition of networking, wherein the instructions to define networking comprise instructions to:
• define a logical network as a plurality of network bridges connected to a virtual switch and to distribute the virtual switch across the container hosts;
• define a respective virtual extensible local area network tunnel between the plurality of network bridges via the virtual switch;
• wherein each of the plurality of network bridges corresponds to a respective server type of the multi-machine application and connects each server of the respective type;
• and
• deploy the multi-machine blueprint to provide a multi-machine application using the definition of networking in the multi-machine blueprint.

A method, comprising:

• creating a mixed reservation of information technology (IT) resources from a virtual machine host, a first container host, and a second container host for a multi-machine application, wherein the first and the second of container hosts each include a respective networking agent;
• creating a multi-machine blueprint from the mixed reservation including a virtual machine template for a first server type, a first container image for a second server type, a second container image for a third server type, and a definition of networking between the virtual machine template, the first container image, and the second container image;
• deploying a web server container provisioned from the first container image in the first container host;
• deploying an application server container provisioned from the second container image in the second container host;
• and
• deploying a database server virtual machine provisioned from the virtual machine template in the virtual machine host;
• providing the definition of networking for the first and the second container hosts via an interface with the respective networking agents, which facilitate creation of a network according to the definition of networking;
• wherein the definition of networking includes:
• a first network bridge connected to the first container image;
• a second network bridge connected to the second container image;
• a virtual extensible local area network tunnel between the first network bridge and the second network bridge via a virtual switch distributed across the first and the second container hosts;
• and
• the virtual machine template on a different Layer 3 network than the first container image and the second container image, connected by a router.