Add qemu CSP for Coordinator

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

coordinator/cloudprovider/qemu/ccm.go

@@ -0,0 +1,70 @@
+package qemu
+
+import (
+	"github.com/edgelesssys/constellation/coordinator/core"
+	"github.com/edgelesssys/constellation/coordinator/kubernetes/k8sapi/resources"
+	k8s "k8s.io/api/core/v1"
+)
+
+// CloudControllerManager holds the QEMU cloud-controller-manager configuration.
+type CloudControllerManager struct{}
+
+// Image returns the container image used to provide cloud-controller-manager for the cloud-provider.
+func (c CloudControllerManager) Image() string {
+	return ""
+}
+
+// Path returns the path used by cloud-controller-manager executable within the container image.
+func (c CloudControllerManager) Path() string {
+	return "/qemu-cloud-controller-manager"
+}
+
+// Name returns the cloud-provider name as used by k8s cloud-controller-manager (k8s.gcr.io/cloud-controller-manager).
+func (c CloudControllerManager) Name() string {
+	return "qemu"
+}
+
+// ExtraArgs returns a list of arguments to append to the cloud-controller-manager command.
+func (c CloudControllerManager) ExtraArgs() []string {
+	return []string{}
+}
+
+// ConfigMaps returns a list of ConfigMaps to deploy together with the k8s cloud-controller-manager
+// Reference: https://kubernetes.io/docs/concepts/configuration/configmap/ .
+func (c CloudControllerManager) ConfigMaps(instance core.Instance) (resources.ConfigMaps, error) {
+	return resources.ConfigMaps{}, nil
+}
+
+// Secrets returns a list of secrets to deploy together with the k8s cloud-controller-manager.
+// Reference: https://kubernetes.io/docs/concepts/configuration/secret/ .
+func (c CloudControllerManager) Secrets(instance core.Instance, cloudServiceAccountURI string) (resources.Secrets, error) {
+	return resources.Secrets{}, nil
+}
+
+// Volumes returns a list of volumes to deploy together with the k8s cloud-controller-manager.
+// Reference: https://kubernetes.io/docs/concepts/storage/volumes/ .
+func (c CloudControllerManager) Volumes() []k8s.Volume {
+	return []k8s.Volume{}
+}
+
+// VolumeMounts a list of of volume mounts to deploy together with the k8s cloud-controller-manager.
+func (c CloudControllerManager) VolumeMounts() []k8s.VolumeMount {
+	return []k8s.VolumeMount{}
+}
+
+// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cloud-controller-manager.
+func (c CloudControllerManager) Env() []k8s.EnvVar {
+	return []k8s.EnvVar{}
+}
+
+// PrepareInstance is called on every instance before deploying the cloud-controller-manager.
+// Allows for cloud-provider specific hooks.
+func (c CloudControllerManager) PrepareInstance(instance core.Instance, vpnIP string) error {
+	// no specific hook required.
+	return nil
+}
+
+// Supported is used to determine if cloud controller manager is implemented for this cloud provider.
+func (c CloudControllerManager) Supported() bool {
+	return false
+}