package kubernetes import ( "context" "github.com/edgelesssys/constellation/bootstrapper/internal/kubernetes/k8sapi/resources" "github.com/edgelesssys/constellation/internal/cloud/metadata" "github.com/edgelesssys/constellation/internal/versions" 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(k8sVersion versions.ValidK8sVersion) (string, error) // 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(k8sVersion versions.ValidK8sVersion) (string, error) // 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(k8sVersion versions.ValidK8sVersion) (string, error) { return "stub-image:latest", nil } 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(k8sVersion versions.ValidK8sVersion) (string, error) { return m.ImageResp, nil } 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 }