When using the agent based instller to zero-touch provision the cluster. If the network bandwidth is low, and the assisted-service or the assisted-service fails to pull the docker image within the timeout. The create-cluster-and-infraenv, apply-host-config, and start-cluster-installation services will be deactivated due to dependency failed. The process will be blocked, and require enable & start the service manually.

openshift-install 4.11.0
built from commit 863cd1ea823559116e26de327705ed72ccdede8f
release image quay.io/openshift-release-dev/ocp-release@sha256:300bce8246cf880e792e106607925de0a404484637627edf5f517375517d54a4
release architecture amd64

Install Openshift with agent based installer with local mirror.

1.Stop the local registry or limit the network bandwidth to make assisted-service-pod.service or assisted-service.service fails to started within the 90s timeout.
2.Start the local registry or mannully pull the image on the node0. 3.

When using the agent based instller to zero-touch pprovision  the cluster. If the network bandwidth is low, and the assisted-service or the assisted-service fails to pull the docker image within the timeout. The create-cluster-and-infraenv, apply-host-config, and start-cluster-installation services will be deactivated due to dependency failed. The process will be blocked, and require enable & start the service manually.

Provision start after the assisted-service started.

Given:
assisted-service-pod.service requires assisted-service-db.service assisted-service.service
assisted-service.service BindsTo=assisted-service-pod.service
create-cluster-and-infraenv.service Requires=assisted-service.service and PartOf=assisted-service-pod.service
apply-host-config.service Requires=create-cluster-and-infraenv.service
start-cluster-installation.service Requires=apply-host-config.service
Requires= "Configures requirement dependencies on other units. If this unit gets activated, the units listed here will be activated as well. If one of the other units gets deactivated or its activation fails, this unit will be deactivated."When assisted-service-pod.service starts, assisted-service-db.service and assisted-service.service also be started,
Once assisted-service-pod.service fails to be started, assisted-service.service also fail to be started due to "BindsTo=assisted-service-pod.service".
Then dependency failed for create-cluster-and-infraenv.service due to Requires=assisted-service.service which activation fails, Therefore it will be deactived.
Then dependency failed for apply-host-config.service, due to Requires=create-cluster-and-infraenv.service which activation fails, Therefore it will be deactived.
Then dependency failed for start-cluster-installation.service, due to Requires=apply-host-config.service which activation fails, Therefore it will be deactived.Then assisted-service-pod.service restarts, assisted-service.service and assisted-service-db.service restarts as well, since they are binded to assisted-service-pod.service.
However, create-cluster-and-infraenv.service apply-host-config.service and start-cluster-installation.service was be deactivated, they requires to be activate mannully.Eventually, assisted-service started and hang with waitting for create infraenv. The provisioning is blocked.