Size adjustable volumes for containers

• US 10,387,068 B2
• Filed: 01/23/2018
• Issued: 08/20/2019
• Est. Priority Date: 02/23/2016
• Status: Active Grant

• Current Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Original Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Inventors: Walsh, Daniel J., Goyal, Vivek, Mahajan, Shishir
• Primary Examiner(s): Rojas, Midys
• Application Number:
  US15/877,874
• Publication Number:
  US 20180150258A1
• Time in Patent Office: 574 Days
• Field of Search: None
• CPC Class Codes: G06F 3/0608 Saving storage space on storage systems
• CPC Class Codes: G06F 3/0631 by allocating resources to storage systems
• CPC Class Codes: G06F 3/0632 by initialisation or re-initialisation of storage systems
• CPC Class Codes: G06F 3/0643 Management of files
• CPC Class Codes: G06F 3/0644 Management of space entities, e.g. partitions, extents, pools
• CPC Class Codes: G06F 3/0653 Monitoring storage devices or systems
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 3/0673 Single storage device

Abstract

Implementations of the disclosure provide for size adjustable volumes for containers. A method of the disclosure includes determining, by a processing device of the PaaS system, a size used space in a storage volume with respect to a container associated with an execution of an application. The size is a summation of current usage of disk space for the storage volume by the application. This size of the used space is compared to a threshold size. The threshold size indicates a determined amount of the storage volume allocated to the container. Responsive to the size meeting the threshold size, an increase in the allocated amount of the storage volume associated with the container is regulated by the processing device.

Claims

1. A method comprising:

receiving, by a processing device of a Platform-as-a-Service (PaaS) system, a client request indicating a size limitation of a container, wherein the size limitation is associated with usage of disk space of a storage volume group;

mapping, by the processing device, a first storage volume of the storage volume group to the container in accordance with the size limitation of the container; and

responsive to detecting that an amount of the disk space used by applications of the container satisfies a threshold amount, mapping, by the processing device, a second storage volume to the container in view of the size limitation.

2. The method of claim 1, further comprising generating an alert indicating that the first storage volume is out of space for the container.

3. The method of claim 1, wherein mapping of the second storage volume comprising mapping a storage device associated with a second storage volume to the storage volume group.

4. The method of claim 1, further comprising determining a size of the second storage volume to map in view of a service level agreement associated with the container.

5. The method of claim 4, further comprising:

responsive to detecting that the service level agreement does not provide for mapping the second storage volume to the container, terminating an execution of the applications.

6. The method of claim 1, wherein the storage volume group supports overcommitting of the disk space used by the applications of the container.

7. A system comprising:

a memory to store a storage volume group; and

a processing device coupled to the memory, the processing device to;

receive a client request indicating a size limitation of a container, wherein the size limitation is associated with usage of disk space of a storage volume group;

map a first storage volume of the storage volume group to the container in accordance with the size limitation of the container; and

responsive to detecting that an amount of the disk space used by applications of the container satisfies a threshold amount, map a second storage volume to the container in view of the size limitation.

8. The system of claim 7, wherein the processing device is further to generate an alert indicating that the first storage volume is out of space for the container.

9. The system of claim 7, wherein to map of the second storage volume, wherein the processing device is further to map a storage device associated with a second storage volume to the storage volume group.

10. The system of claim 7, wherein the processing device is further to determine a size of the second storage volume to map in view of a service level agreement associated with the container.

11. The system of claim 10, wherein the processing device is further to, responsive to detecting that the service level agreement does not provide for mapping the second storage volume to the container, terminate an execution of the applications.

12. The system of claim 7, wherein the storage volume group supports overcommitting of the disk space used by the applications of the container.

13. A non-transitory computer-readable storage medium comprising executable instructions that when executed, by a processing device, cause the processing device to:

receive a client request indicating a size limitation of a container, wherein the size limitation is associated with usage of disk space of a storage volume group;

map a first storage volume of the storage volume group to the container in accordance with the size limitation of the container; and

responsive to detecting that an amount of the disk space used by applications of the container satisfies a threshold amount, map a second storage volume to the container in view of the size limitation.

14. The non-transitory computer-readable storage medium of claim 13, wherein the processing device is further to generate an alert indicating that the first storage volume is out of space for the container.

15. The non-transitory computer-readable storage medium of claim 13, wherein to map of the second storage volume, wherein the processing device is further to map a storage device associated with a second storage volume to the storage volume group.

16. The non-transitory computer-readable storage medium of claim 13, wherein the processing device is further to determine a size of the second storage volume to map in view of a service level agreement associated with the container.

17. The non-transitory computer-readable storage medium of claim 16, wherein the processing device is further to, responsive to detecting that the service level agreement does not provide for mapping the second storage volume to the container, terminate an execution of the applications.