pull-sources-mirror-reference.conf

[[registry]]
prefix = "registry-a.com/foo"
location = "registry-a.com/bar"

[[registry.mirror]]
location = "mirror-1.registry-a.com"

[[registry.mirror]]
location = "mirror-2.registry-a.com"
insecure = true

[[registry]]
prefix = "registry-b.com/foo"
location = "registry-b.com/bar"

[[registry.mirror]]
digest-only = true
location = "mirror-1.registry-b.com"

[[registry.mirror]]
digest-only = true
location = "mirror-2.registry-b.com"

[[registry]]
prefix = "registry-c.com/foo"
location = "registry-c.com/bar"

[[registry.mirror]]
location = "mirror-1.registry-c.com"

[[registry.mirror]]
digest-only = true
location = "mirror-2.registry-c.com"

[[registry]]
prefix = "registry-d.com/foo"
location = "registry-d.com/bar"
mirror-by-digest-only = true

[[registry.mirror]]
location = "mirror-1.registry-d.com"

[[registry.mirror]]
location = "mirror-2.registry-d.com"