https://forums.docker.com/t/non-dockerhub-registry-mirror/126552
perhaps, there is no other way besides retag.
docker pull registry.k8s.io/etcd:v3.6.8
Error response from daemon: failed to resolve reference "registry.k8s.io/etcd:v3.6.8": failed to do request: Head "https://europe-west4-docker.pkg.dev/v2/k8s-artifacts-prod/images/etcd/manifests/v3.6.8": dial tcp 173.194.203.82:443: i/o timeout
ctr image pull registry.k8s.io/etcd:v3.6.8
ctr: failed to resolve image: failed to do request: Head "https://europe-west3-docker.pkg.dev/v2/k8s-artifacts-prod/images/etcd/manifests/v3.6.8": dial tcp 173.194.203.82:443: i/o timeout: context deadline exceeded
ctr images pull --hosts-dir "/etc/containerd/certs.d" registry.k8s.io/etcd:v3.6.8
registry.k8s.io/etcd:v3.6.8 saved
└──index (397189418d1a) complete |++++++++++++++++++++++++++++++++++++++|
├──manifest (3ea799f4e1bb) complete |++++++++++++++++++++++++++++++++++++++|
│ └──config (62bc5b07b564) complete |++++++++++++++++++++++++++++++++++++++|
├──manifest (aa2b41e3f99c) complete |++++++++++++++++++++++++++++++++++++++|
│ ├──config (ee85eb1f0edd) complete |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (8c02b6f8ac46) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (688513194d7a) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (bfb59b82a9b6) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (efa9d1d5d3a2) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (b6824ed73363) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (7c12895b777b) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (3214acf345c0) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (5664b15f108b) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (27be814a09eb) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (4aa0ea1413d3) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (da7816fa955e) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (9aee425378d2) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (a00667e02fad) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (f097e84ccded) extracted |++++++++++++++++++++++++++++++++++++++|
│ ├──layer (c39cffd75ba2) extracted |++++++++++++++++++++++++++++++++++++++|
│ └──layer (4c78bfe85422) extracted |++++++++++++++++++++++++++++++++++++++|
├──manifest (82bf8bc50b9a) complete |++++++++++++++++++++++++++++++++++++++|
│ └──config (6da6ea097b38) complete |++++++++++++++++++++++++++++++++++++++|
└──manifest (84414327dd1c) complete |++++++++++++++++++++++++++++++++++++++|
└──config (49ac3c175d7d) complete |++++++++++++++++++++++++++++++++++++++|
application/vnd.docker.distribution.manifest.list.v2+json sha256:397189418d1a00e500c0605ad18d1baf3b541a1004d768448c367e48071622e5
Completed pull from OCI Registry (registry.k8s.io/etcd:v3.6.8) elapsed: 18.2s total: 21.8 M (1.2 MiB/s)