Rename coordinator to bootstrapper and rename roles

bootstrapper/internal/kubernetes/cloud_provider.go

@@ -0,0 +1,230 @@
+package kubernetes
+
+import (
+	"context"
+
+	"github.com/edgelesssys/constellation/bootstrapper/internal/kubernetes/k8sapi/resources"
+	"github.com/edgelesssys/constellation/internal/cloud/metadata"
+	k8s "k8s.io/api/core/v1"
+)
+
+// ProviderMetadata implementers read/write cloud provider metadata.
+type ProviderMetadata interface {
+	// List retrieves all instances belonging to the current Constellation.
+	List(ctx context.Context) ([]metadata.InstanceMetadata, error)
+	// Self retrieves the current instance.
+	Self(ctx context.Context) (metadata.InstanceMetadata, error)
+	// GetSubnetworkCIDR retrieves the subnetwork CIDR for the current instance.
+	GetSubnetworkCIDR(ctx context.Context) (string, error)
+	// SupportsLoadBalancer returns true if the cloud provider supports load balancers.
+	SupportsLoadBalancer() bool
+	// GetLoadBalancerIP retrieves the load balancer IP.
+	GetLoadBalancerIP(ctx context.Context) (string, error)
+	// GetInstance retrieves an instance using its providerID.
+	GetInstance(ctx context.Context, providerID string) (metadata.InstanceMetadata, error)
+	// Supported is used to determine if metadata API is implemented for this cloud provider.
+	Supported() bool
+}
+
+// CloudControllerManager implementers provide configuration for the k8s cloud-controller-manager.
+type CloudControllerManager interface {
+	// Image returns the container image used to provide cloud-controller-manager for the cloud-provider.
+	Image() string
+	// Path returns the path used by cloud-controller-manager executable within the container image.
+	Path() string
+	// Name returns the cloud-provider name as used by k8s cloud-controller-manager (k8s.gcr.io/cloud-controller-manager).
+	Name() string
+	// ExtraArgs returns a list of arguments to append to the cloud-controller-manager command.
+	ExtraArgs() []string
+	// ConfigMaps returns a list of ConfigMaps to deploy together with the k8s cloud-controller-manager
+	// Reference: https://kubernetes.io/docs/concepts/configuration/configmap/ .
+	ConfigMaps(instance metadata.InstanceMetadata) (resources.ConfigMaps, error)
+	// Secrets returns a list of secrets to deploy together with the k8s cloud-controller-manager.
+	// Reference: https://kubernetes.io/docs/concepts/configuration/secret/ .
+	Secrets(ctx context.Context, providerID, cloudServiceAccountURI string) (resources.Secrets, error)
+	// Volumes returns a list of volumes to deploy together with the k8s cloud-controller-manager.
+	// Reference: https://kubernetes.io/docs/concepts/storage/volumes/ .
+	Volumes() []k8s.Volume
+	// VolumeMounts a list of of volume mounts to deploy together with the k8s cloud-controller-manager.
+	VolumeMounts() []k8s.VolumeMount
+	// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cloud-controller-manager.
+	Env() []k8s.EnvVar
+	// Supported is used to determine if cloud controller manager is implemented for this cloud provider.
+	Supported() bool
+}
+
+// CloudNodeManager implementers provide configuration for the k8s cloud-node-manager.
+type CloudNodeManager interface {
+	// Image returns the container image used to provide cloud-node-manager for the cloud-provider.
+	Image() string
+	// Path returns the path used by cloud-node-manager executable within the container image.
+	Path() string
+	// ExtraArgs returns a list of arguments to append to the cloud-node-manager command.
+	ExtraArgs() []string
+	// Supported is used to determine if cloud node manager is implemented for this cloud provider.
+	Supported() bool
+}
+
+// ClusterAutoscaler implementers provide configuration for the k8s cluster-autoscaler.
+type ClusterAutoscaler interface {
+	// Name returns the cloud-provider name as used by k8s cluster-autoscaler.
+	Name() string
+	// Secrets returns a list of secrets to deploy together with the k8s cluster-autoscaler.
+	Secrets(providerID, cloudServiceAccountURI string) (resources.Secrets, error)
+	// Volumes returns a list of volumes to deploy together with the k8s cluster-autoscaler.
+	Volumes() []k8s.Volume
+	// VolumeMounts returns a list of volume mounts to deploy together with the k8s cluster-autoscaler.
+	VolumeMounts() []k8s.VolumeMount
+	// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cluster-autoscaler.
+	Env() []k8s.EnvVar
+	// Supported is used to determine if cluster autoscaler is implemented for this cloud provider.
+	Supported() bool
+}
+
+type stubProviderMetadata struct {
+	GetLoadBalancerIPErr  error
+	GetLoadBalancerIPResp string
+
+	GetSubnetworkCIDRErr  error
+	GetSubnetworkCIDRResp string
+
+	ListErr  error
+	ListResp []metadata.InstanceMetadata
+
+	SelfErr  error
+	SelfResp metadata.InstanceMetadata
+
+	GetInstanceErr  error
+	GetInstanceResp metadata.InstanceMetadata
+
+	SupportedResp            bool
+	SupportsLoadBalancerResp bool
+}
+
+func (m *stubProviderMetadata) GetLoadBalancerIP(ctx context.Context) (string, error) {
+	return m.GetLoadBalancerIPResp, m.GetLoadBalancerIPErr
+}
+
+func (m *stubProviderMetadata) GetSubnetworkCIDR(ctx context.Context) (string, error) {
+	return m.GetSubnetworkCIDRResp, m.GetSubnetworkCIDRErr
+}
+
+func (m *stubProviderMetadata) List(ctx context.Context) ([]metadata.InstanceMetadata, error) {
+	return m.ListResp, m.ListErr
+}
+
+func (m *stubProviderMetadata) Self(ctx context.Context) (metadata.InstanceMetadata, error) {
+	return m.SelfResp, m.SelfErr
+}
+
+func (m *stubProviderMetadata) GetInstance(ctx context.Context, providerID string) (metadata.InstanceMetadata, error) {
+	return m.GetInstanceResp, m.GetInstanceErr
+}
+
+func (m *stubProviderMetadata) Supported() bool {
+	return m.SupportedResp
+}
+
+func (m *stubProviderMetadata) SupportsLoadBalancer() bool {
+	return m.SupportsLoadBalancerResp
+}
+
+type stubCloudControllerManager struct {
+	SupportedResp bool
+}
+
+func (m *stubCloudControllerManager) Image() string {
+	return "stub-image:latest"
+}
+
+func (m *stubCloudControllerManager) Path() string {
+	return "/stub-controller-manager"
+}
+
+func (m *stubCloudControllerManager) Name() string {
+	return "stub"
+}
+
+func (m *stubCloudControllerManager) ExtraArgs() []string {
+	return []string{}
+}
+
+func (m *stubCloudControllerManager) ConfigMaps(instance metadata.InstanceMetadata) (resources.ConfigMaps, error) {
+	return []*k8s.ConfigMap{}, nil
+}
+
+func (m *stubCloudControllerManager) Secrets(ctx context.Context, instance, cloudServiceAccountURI string) (resources.Secrets, error) {
+	return []*k8s.Secret{}, nil
+}
+
+func (m *stubCloudControllerManager) Volumes() []k8s.Volume {
+	return []k8s.Volume{}
+}
+
+func (m *stubCloudControllerManager) VolumeMounts() []k8s.VolumeMount {
+	return []k8s.VolumeMount{}
+}
+
+func (m *stubCloudControllerManager) Env() []k8s.EnvVar {
+	return []k8s.EnvVar{}
+}
+
+func (m *stubCloudControllerManager) Supported() bool {
+	return m.SupportedResp
+}
+
+type stubCloudNodeManager struct {
+	SupportedResp bool
+
+	ImageResp     string
+	PathResp      string
+	ExtraArgsResp []string
+}
+
+func (m *stubCloudNodeManager) Image() string {
+	return m.ImageResp
+}
+
+func (m *stubCloudNodeManager) Path() string {
+	return m.PathResp
+}
+
+func (m *stubCloudNodeManager) ExtraArgs() []string {
+	return m.ExtraArgsResp
+}
+
+func (m *stubCloudNodeManager) Supported() bool {
+	return m.SupportedResp
+}
+
+type stubClusterAutoscaler struct {
+	SupportedResp bool
+}
+
+func (a *stubClusterAutoscaler) Name() string {
+	return "stub"
+}
+
+// Secrets returns a list of secrets to deploy together with the k8s cluster-autoscaler.
+func (a *stubClusterAutoscaler) Secrets(instance, cloudServiceAccountURI string) (resources.Secrets, error) {
+	return resources.Secrets{}, nil
+}
+
+// Volumes returns a list of volumes to deploy together with the k8s cluster-autoscaler.
+func (a *stubClusterAutoscaler) Volumes() []k8s.Volume {
+	return []k8s.Volume{}
+}
+
+// VolumeMounts returns a list of volume mounts to deploy together with the k8s cluster-autoscaler.
+func (a *stubClusterAutoscaler) VolumeMounts() []k8s.VolumeMount {
+	return []k8s.VolumeMount{}
+}
+
+// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cluster-autoscaler.
+func (a *stubClusterAutoscaler) Env() []k8s.EnvVar {
+	return []k8s.EnvVar{}
+}
+
+func (a *stubClusterAutoscaler) Supported() bool {
+	return a.SupportedResp
+}