The multicluster-inventory Operator
This operator provides a CRD that is used to hold inventory records in the hub cluster, and a controller that reconciles inventory with resources in the managed cluster. The actual placement of resources from hub to managed cluster is done using either hive's SyncSet or MCM.
Start a managed cluster named cluster0
minikube start -p cluster0
kubectl apply -f https://raw.githubusercontent.com/metal3-io/baremetal-operator/master/deploy/crds/metal3.io_baremetalhosts_crd.yaml
Start a hub cluster named hive
minikube start -p hive
Deploy hive to the hub cluster following hive docs.
Adopt cluster0 as a managed cluster
bin/hiveutil create-cluster --adopt --adopt-admin-kubeconfig=/tmp/cluster0.config --adopt-cluster-id=cluster0 --adopt-infra-id=cluster0 cluster0
Note: You may need to add --include-secrets=false as documented here if you get an error message about missing AWS credentials.
Build
The operator can be built using:
make build
To install your own build of multicluster-inventory, build and push your image to your own image registry.
export REGISTRY_NAMESPACE=sacharya
export TAG=latest
make build-image
podman push quay.io/$REGISTRY_NAMESPACE/multicluster-inventory:$TAG
Install operator on hub cluster
Once the image is pushed, edit the deploy/operator.yaml to point to your image.
MCINVENTORY_IMAGE="quay.io/$REGISTRY_NAMESPACE/multicluster-inventory:$TAG"
sed -i "s|REPLACE_IMAGE|$MCINVENTORY_IMAGE|" ./deploy/operator.yaml
Deploy the operator:
kubectl create -f deploy/service_account.yaml
kubectl create -f deploy/role.yaml
kubectl create -f deploy/role_binding.yaml
kubectl create -f deploy/crds/midas.io_baremetalassets_crd.yaml
kubectl create -f deploy/operator.yaml
Once you have the operator running, you can create an inventory record ie. BareMetalAsset using:
kubectl create -f deploy/crds/midas.io_v1alpha1_baremetalasset_cr.yaml
Verify
On the hub cluster:
kubectl get baremetalassets
kubectl get secrets
kubectl get syncsets
kubectl get syncsetinstances
On cluster0, verify the resources are properly propagated:
kubectl get baremetalhosts
kubectl get secrets
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