`clusterctl init` fails with "repository name must be canonical"

[luxas]

What steps did you take and what happened:

I tried to get started with the Packet provider.
I downloaded the recent kind and clusterctl versions (v0.8.1 and v0.3.9, respectively), created a kind cluster, exported the Packet API key locally, and ran clusterctl init --infrastructure packet, which failed with error message:

Fetching providers
Error: failed to get provider components for the "packet" provider: failed to apply image overrides: failed to fix image for container manager in deployment cluster-api-provider-packet-controller-manager: couldn't parse image name: repository name must be canonical

The same goes for:

$ clusterctl config repositories
NAME          TYPE                     URL                                                                                          FILE
cluster-api   CoreProvider             https://github.com/kubernetes-sigs/cluster-api/releases/latest/                              core-components.yaml
kubeadm       BootstrapProvider        https://github.com/kubernetes-sigs/cluster-api/releases/latest/                              bootstrap-components.yaml
talos         BootstrapProvider        https://github.com/talos-systems/cluster-api-bootstrap-provider-talos/releases/latest/       bootstrap-components.yaml
kubeadm       ControlPlaneProvider     https://github.com/kubernetes-sigs/cluster-api/releases/latest/                              control-plane-components.yaml
talos         ControlPlaneProvider     https://github.com/talos-systems/cluster-api-control-plane-provider-talos/releases/latest/   control-plane-components.yaml
aws           InfrastructureProvider   https://github.com/kubernetes-sigs/cluster-api-provider-aws/releases/latest/                 infrastructure-components.yaml
azure         InfrastructureProvider   https://github.com/kubernetes-sigs/cluster-api-provider-azure/releases/latest/               infrastructure-components.yaml
metal3        InfrastructureProvider   https://github.com/metal3-io/cluster-api-provider-metal3/releases/latest/                    infrastructure-components.yaml
openstack     InfrastructureProvider   https://github.com/kubernetes-sigs/cluster-api-provider-openstack/releases/latest/           infrastructure-components.yaml
packet        InfrastructureProvider   https://github.com/kubernetes-sigs/cluster-api-provider-packet/releases/latest/              infrastructure-components.yaml
sidero        InfrastructureProvider   https://github.com/talos-systems/sidero/releases/latest/                                     infrastructure-components.yaml
vsphere       InfrastructureProvider   https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/releases/latest/             infrastructure-components.yaml
$ clusterctl config provider -i packet
Error: failed to apply image overrides: failed to fix image for container manager in deployment cluster-api-provider-packet-controller-manager: couldn't parse image name: repository name must be canonical

What did you expect to happen:

clusterctl init would succeed.

Anything else you would like to add:

I think that we need to release a new version with canonical image repository references, i.e. {,docker.io/}packethost/cluster-api-provider-packet:v0.3.2

Environment:

• cluster-api-provider-packet version: v0.3.2
• Kubernetes version: (use kubectl version): v1.18.2
• OS (e.g. from /etc/os-release): Ubuntu 20.04 laptop

Thanks for looking into this.