Orchestration of Heterogeneous Multi-Role Applications

Patent metadata

Field	Value
Publication number	US-2020310915-A1
Application number	US-201916363907-A
Country	US
Kind code	A1
Filing date	Mar 25, 2019
Priority date	Mar 25, 2019
Publication date	Oct 1, 2020
Grant date	—

Abstract

A new snapshot of a storage volume is created by instructing computing nodes to suppress write requests. An orchestration layer implements a multi-role application that is provisioned with virtualized storage and computation resources. A snapshot of the application may be created and used to rollback or clone the application. Clones snapshots of storage volumes may be gradually populated with data from prior snapshots to reduce loading on a primary snapshot. A multi-role application may be orchestrated using multiple orchestration approaches and objects of the multi-role application may be discovered and added to an application definition. The application definition may be used to create snapshots of the application and the snapshot may be used to rollback, clone, backup, or migrate the application.

First claim

1 . A method comprising:
providing a first set of objects executing on a first computing platform and implementing a first portion of a multi-role application, the first set of objects being created and managed by a first orchestrator executing on the first computing platform; providing a second set of objects executing on the first computing platform and implementing a second portion of the multi-role application, the second set of objects being created and managed by a second orchestrator executing on the first computing platform; identifying, by the first computing platform, the second set of objects by identifying references to objects within the second set of objects by other objects of the second set of objects; adding, by the first computing platform, references and object descriptors for each object of the first set of objects and the second set of objects to an application definition; and perform, by the first computing platform, an operation with respect to the application definition.

2 . The method of claim 1 , wherein the first computing platform is a first cloud computing platform.

3 . The method of claim 1 , wherein the operation is migrating the multi-role application to a second computing platform according to the application definition.

4 . The method of claim 1 , wherein the operation is creating a clone of the multi-role application according to the application definition.

5 . The method of claim 1 , wherein the operation is creating a clone of the multi-role application according to the application definition.

6 . The method of claim 1 , wherein the operation is creating a backup copy of the multi-role application according to the application definition.

7 . The method of claim 1 , further comprising labeling, by the first computing platform, the first set of objects and the second set of objects with a same identifier corresponding to the application definition.

8 . The method of claim 1 , wherein providing the second set of objects comprises:
processing, by the second orchestrator, a configuration file instructing creation of a first portion of the second set of objects in order to instantiate the first portion of the second set of objects on the first computing platform; and instantiating, by the second orchestrator, each object of a second portion of the second set of objects in response to at least one of (a) a user instruction to create the each object (b) loading of the first portion of the second set of objects; discovering, by the first orchestrator, the second portion of the second set of objects by detecting references to the second portion of the second set of objects by objects of the first portion of the second set of objects.

9 . The method of claim 8 , wherein the references to the second portion of the second set of objects by objects of the first portion of the second set of objects include at least one of:
an owner reference of another object of the second set of objects; a reference in a configuration map of another object of the second set of objects; and configuration to use by another object of the second set of objects.

10 . The method of claim 8 , wherein the second orchestrator is a KUBERNETES master and the configuration file is at least one of a HELM chart and a Stateful Set.

11 . The method of claim 1 , wherein the operation is creating a snapshot of the multi-role application according to the application definition, the method further comprising, executing the operation by:
storing a snapshot of the application definition in a snapshot application; storing states of the first set of objects and the second set of objects in the snapshot application; creating snapshot volumes of a plurality of storage volumes referenced in the application definition; storing identifiers of the snapshots of the plurality of storage volumes in the snapshot application.

12 . The method of claim 11 , wherein a first portion of the second set of objects include one or more objects each implementing an interface to a storage volume of the plurality of storage volumes.

13 . The method of claim 12 , wherein objects of the first portion of the second set of objects are Persistent Volume Claim (PVC) objects according to KUBERNETES and the interface is a container storage interface (CSI).

14 . The method of claim 13 , wherein the method further comprises executing the operation by:
issuing, by the first computing platform, a second instruction to the PVC objects to create snapshots; in response to the second instruction, issue, by the PVC objects, through the CSIs of the PVC objects, requests to create snapshots of the plurality of storage volumes to the first orchestrator.

15 . The method of claim 14 , further comprising:
receiving, by the first orchestrator, the requests from the PVCs, the requests being issued one after another in series by the plurality of PVCs; evaluating, by the first orchestrator, the application definition; (a) determining, by the first orchestrator, that the plurality of volumes belong to a volume group; in response to (a), invoking, by the first orchestrator, substantially simultaneous creation of snapshot volumes of the plurality of storage volumes by a storage manager executing on the first computing platform; and storing, by the first orchestrator, snapshot identifiers of the snapshot volumes in the snapshot application.

16 . The method of claim 15 , further comprising:
(b) receiving, by the first computing platform, an instruction to clone the snapshot application; in response to (b), creating a clone application that is a copy of the snapshot application having the reference and the object descriptor for each object of the first set of objects and the second set of objects with a clone identifier and the object descriptor in the clone application; creating clone objects corresponding to the clone identifiers and object descriptors in the clone application; and restoring states of the clone objects according to the states in the clone application corresponding to the clone objects.

17 . The method of claim 16 , further comprising, in response to (b):
issuing, by the first computing platform, a third instruction to clone PVC objects of the clone objects to create storage volumes corresponding to the snapshot identifiers in the clone application; in response to the third instruction, issue, by the clone PVC objects, through the CSIs of the PVC objects, requests to create storage volumes for the snapshot identifiers; receiving, by the first orchestrator, from the PVCs, the requests to create storage volumes for the snapshot identifiers; for each request from a clone PVC (“the subject PVC”) to create a storage volume for a snapshot identifier (“the subject identifier”) of the requests to create storage volumes for the snapshot identifiers:
(c) creating a clone storage volume that references the subject identifier but does not contain data stored in the snapshot volume corresponding to the subject identifier (“the subject snapshot volume”);
mounting the clone storage volume to the subject PVC.

18 . The method of claim 17 , further comprising:
subsequent to (c) migrating, by the first computing platform, data from the subject snapshot volume to the clone storage volume.

19 . The method of claim 18 , further comprising (b) receiving, by the first computing platform, an instruction to migrate the snapshot application to a second computing platform and, in response to (b):
deleting the first and second objects on the first co

Assignees

• Robin Sys Inc

Inventors

• Alluboyina Ravi Kumar
• Doshi Tushar
• Seetala Partha Sarathi
• Patel Ripulkumar Hemantbhai
• Mukku Jagadish Kumar

Classifications

• G06F11/1469

  Backup restoration techniques · CPC title

• G06F11/1471

  involving logging of persistent data for recovery · CPC title

• G06F11/1464

  for networked environments · CPC title

• G06F11/1451 Primary

  by selection of backup contents · CPC title

• G06F2201/84

  Using snapshots, i.e. a logical point-in-time copy of the data · CPC title