cluster: Allow deploying on external cluster

Allows to deploy Multus dynamic networks controller on external provider.
Deploys fixed multus release (doesnt build latest as this repo usually do).

Usage:

export CLUSTER_TYPE=external
export KUBECONFIG=<kubeconfig>
export IMAGE_REGISTRY=quay.io/<your_quay>
export MULTUS_VERSION=v4.1.1

If CRIO is used, use export CRI=crio (works also for non external clusters).

If You don't want to deploy multus at all use (you must deploy it yourself as the controller depends on it)
export SKIP_MULTUS_DEPLOYMENT=true (supported only for external clusters)

Signed-off-by: Or Shoval <[email protected]>

hack/e2e-kind-cluster-setup.sh

@@ -1,8 +1,13 @@
 #!/bin/bash
 set -xe
 
+CLUSTER_TYPE=${CLUSTER_TYPE:-kind}
+SKIP_MULTUS_DEPLOYMENT=${SKIP_MULTUS_DEPLOYMENT:-false}
+MULTUS_VERSION=${MULTUS_VERSION:-latest}
+
 CNI_VERSION=${CNI_VERSION:-0.4.0}
 OCI_BIN=${OCI_BIN:-docker}
+CRI=${CRI:-"containerd"} # possible values: containerd / crio
 IMG_REGISTRY=${IMAGE_REGISTRY:-localhost:5000/k8snetworkplumbingwg}
 IMG_TAG="e2e"
 
@@ -25,18 +30,47 @@ setup_cluster() {
 push_local_image() {
     OCI_BIN="$OCI_BIN" IMAGE_REGISTRY="$IMG_REGISTRY" IMAGE_TAG="$IMG_TAG" make manifests
     OCI_BIN="$OCI_BIN" IMAGE_REGISTRY="$IMG_REGISTRY" IMAGE_TAG="$IMG_TAG" make img-build
-    kind load docker-image $IMG_REGISTRY/multus-dynamic-networks-controller:$IMG_TAG
+
+    if [[ $CLUSTER_TYPE == "kind" ]]; then
+      kind load docker-image $IMG_REGISTRY/multus-dynamic-networks-controller:$IMG_TAG
+    else
+      "$OCI_BIN" push $IMG_REGISTRY/multus-dynamic-networks-controller:$IMG_TAG 
+    fi
 }
 
 cleanup() {
     rm -rf multus-cni
     git checkout -- manifests/
 }
 
+install_specific_multus_version() {
+  if [[ $MULTUS_VERSION == "latest" ]]; then
+    echo "error: MULTUS_VERSION is required to be a specific version (i.e v4.1.2), not 'latest' when using non kind provider"
+    exit 1
+  fi
+
+  echo "Installing multus-cni $MULTUS_VERSION daemonset ..."
+  wget -qO- "https://raw.githubusercontent.com/k8snetworkplumbingwg/multus-cni/${MULTUS_VERSION}/deployments/multus-daemonset-thick.yml" |\
+    sed -e "s|multus-cni:snapshot|multus-cni:${MULTUS_VERSION}|g" |\
+    kubectl apply -f -
+}
+
 trap "cleanup" EXIT
-git clone https://github.com/k8snetworkplumbingwg/multus-cni/
-start_registry_container
-setup_cluster
+
+if [[ $CLUSTER_TYPE == "kind" ]]; then
+  git clone https://github.com/k8snetworkplumbingwg/multus-cni/
+  start_registry_container
+  setup_cluster
+elif [[ $SKIP_MULTUS_DEPLOYMENT != true ]]; then
+  install_specific_multus_version
+fi
+
 push_local_image
-kubectl apply -f manifests/dynamic-networks-controller.yaml
+
+if [[ $CRI == "containerd" ]]; then
+  kubectl apply -f manifests/dynamic-networks-controller.yaml
+else
+  kubectl apply -f manifests/crio-dynamic-networks-controller.yaml
+fi
+
 kubectl wait -nkube-system --for=condition=ready --timeout=180s -l app=dynamic-networks-controller pods