Snapshot creation for persistent volumes

A computer program product comprising:

• one or more computer-readable storage media;
• and
• program instructions stored on the one or more storage media to perform operations comprising:
• causing a persistent volume list for application services in a container orchestration system to be maintained,
• wherein a plurality of drivers maintain a plurality of persistent volumes in the different application services;
• in response to receiving a request from a first application to create a snapshot of the persistent volumes in a first of the application services, identifying, within the persistent volume list, drivers, of the plurality of drivers, that maintain the persistent volumes belonging to the first application service;
• causing the identified drivers to flush flawed data from the persistent volumes belonging to the first application service;
• causing, subsequent to the flushing of the flawed data, the identified drivers to create snapshots of the persistent volumes belonging to the first application service;
• recording a time that the snapshots for the persistent volumes belonging to the first application service are complete;
• and
• sending a first notification to the first application to acknowledge fulfillment of the request, wherein the first notification indicates the recorded time.

A computer system comprising:

• a processor set;
• one or more computer-readable storage media;
• and
• program instructions stored on the one or more storage media to cause the processor set to perform operations comprising:
• causing a persistent volume list for application services in a container orchestration system to be maintained,
• wherein a plurality of drivers maintain a plurality of persistent volumes in the different application services;
• in response to receiving a request from a first application to create a snapshot of the persistent volumes in a first of the application services, identifying, within the persistent volume list, drivers, of the plurality of drivers, that maintain the persistent volumes belonging to the first application service;
• causing the identified drivers to flush flawed data from the persistent volumes belonging to the first application service;
• causing, subsequent to the flushing of the flawed data, the identified drivers to create snapshots of the persistent volumes belonging to the first application service;
• recording a time that the snapshots for the persistent volumes belonging to the first application service are complete;
• and
• sending a first notification to the first application to acknowledge fulfillment of the request, wherein the first notification indicates the recorded time.