Glance – OpenStack image storage

In OpenStack, we have a different storage type called image storage. Glance service provides image storage in OpenStack. Glance stores images and metadata information related to images.

Like other services, Glance also provides REST API to perform activities such as discovering, registering and retrieving images.

Now, let's see how one can score the Glance (image storage):

• We must ensure that Glance configuration files only have ownership of the root user and Glance group. This will help to control unauthorized access and modification or deletion of configuration files. These configuration files are as follows:
  • /etc/glance/glance-api-paste.ini
  • /etc/glance/glance-api.conf
  • /etc/glance/glance-cache.conf
  • /etc/glance/glance-manage.conf
  • /etc/glance/glance-registry-paste.ini
  • /etc/glance/glance-registry.conf
  • /etc/glance/glance-scrubber.conf
  • /etc/glance/glance-swift-store.conf
  • /etc/glance/policy.json
  • /etc/glance/schema-image.json
  • etc/glance/schema.json
• All of the communication...