mirror of
https://github.com/edgelesssys/constellation.git
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247 lines
8.5 KiB
Go
247 lines
8.5 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package kubernetes
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import (
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"context"
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"github.com/edgelesssys/constellation/v2/internal/cloud/metadata"
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"github.com/edgelesssys/constellation/v2/internal/kubernetes"
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"github.com/edgelesssys/constellation/v2/internal/versions"
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k8s "k8s.io/api/core/v1"
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)
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// ProviderMetadata implementers read/write cloud provider metadata.
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type ProviderMetadata interface {
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// UID returns the unique identifier for the constellation.
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UID(ctx context.Context) (string, error)
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// List retrieves all instances belonging to the current Constellation.
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List(ctx context.Context) ([]metadata.InstanceMetadata, error)
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// Self retrieves the current instance.
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Self(ctx context.Context) (metadata.InstanceMetadata, error)
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// GetSubnetworkCIDR retrieves the subnetwork CIDR for the current instance.
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GetSubnetworkCIDR(ctx context.Context) (string, error)
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// SupportsLoadBalancer returns true if the cloud provider supports load balancers.
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SupportsLoadBalancer() bool
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// GetLoadBalancerEndpoint retrieves the load balancer endpoint.
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GetLoadBalancerEndpoint(ctx context.Context) (string, error)
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// GetInstance retrieves an instance using its providerID.
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GetInstance(ctx context.Context, providerID string) (metadata.InstanceMetadata, error)
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// Supported is used to determine if metadata API is implemented for this cloud provider.
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Supported() bool
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}
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// CloudControllerManager implementers provide configuration for the k8s cloud-controller-manager.
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type CloudControllerManager interface {
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// Image returns the container image used to provide cloud-controller-manager for the cloud-provider.
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Image(k8sVersion versions.ValidK8sVersion) (string, error)
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// Path returns the path used by cloud-controller-manager executable within the container image.
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Path() string
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// Name returns the cloud-provider name as used by k8s cloud-controller-manager (k8s.gcr.io/cloud-controller-manager).
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Name() string
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// ExtraArgs returns a list of arguments to append to the cloud-controller-manager command.
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ExtraArgs() []string
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// ConfigMaps returns a list of ConfigMaps to deploy together with the k8s cloud-controller-manager
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// Reference: https://kubernetes.io/docs/concepts/configuration/configmap/ .
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ConfigMaps() (kubernetes.ConfigMaps, error)
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// Secrets returns a list of secrets to deploy together with the k8s cloud-controller-manager.
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// Reference: https://kubernetes.io/docs/concepts/configuration/secret/ .
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Secrets(ctx context.Context, providerID, cloudServiceAccountURI string) (kubernetes.Secrets, error)
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// Volumes returns a list of volumes to deploy together with the k8s cloud-controller-manager.
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// Reference: https://kubernetes.io/docs/concepts/storage/volumes/ .
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Volumes() []k8s.Volume
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// VolumeMounts a list of of volume mounts to deploy together with the k8s cloud-controller-manager.
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VolumeMounts() []k8s.VolumeMount
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// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cloud-controller-manager.
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Env() []k8s.EnvVar
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// Supported is used to determine if cloud controller manager is implemented for this cloud provider.
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Supported() bool
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}
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// CloudNodeManager implementers provide configuration for the k8s cloud-node-manager.
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type CloudNodeManager interface {
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// Image returns the container image used to provide cloud-node-manager for the cloud-provider.
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Image(k8sVersion versions.ValidK8sVersion) (string, error)
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// Path returns the path used by cloud-node-manager executable within the container image.
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Path() string
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// ExtraArgs returns a list of arguments to append to the cloud-node-manager command.
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ExtraArgs() []string
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// Supported is used to determine if cloud node manager is implemented for this cloud provider.
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Supported() bool
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}
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// ClusterAutoscaler implementers provide configuration for the k8s cluster-autoscaler.
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type ClusterAutoscaler interface {
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// Name returns the cloud-provider name as used by k8s cluster-autoscaler.
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Name() string
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// Secrets returns a list of secrets to deploy together with the k8s cluster-autoscaler.
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Secrets(providerID, cloudServiceAccountURI string) (kubernetes.Secrets, error)
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// Volumes returns a list of volumes to deploy together with the k8s cluster-autoscaler.
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Volumes() []k8s.Volume
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// VolumeMounts returns a list of volume mounts to deploy together with the k8s cluster-autoscaler.
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VolumeMounts() []k8s.VolumeMount
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// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cluster-autoscaler.
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Env() []k8s.EnvVar
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// Supported is used to determine if cluster autoscaler is implemented for this cloud provider.
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Supported() bool
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}
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type stubProviderMetadata struct {
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GetLoadBalancerEndpointErr error
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GetLoadBalancerEndpointResp string
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GetSubnetworkCIDRErr error
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GetSubnetworkCIDRResp string
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ListErr error
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ListResp []metadata.InstanceMetadata
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SelfErr error
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SelfResp metadata.InstanceMetadata
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GetInstanceErr error
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GetInstanceResp metadata.InstanceMetadata
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SupportedResp bool
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SupportsLoadBalancerResp bool
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UIDErr error
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UIDResp string
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}
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func (m *stubProviderMetadata) GetLoadBalancerEndpoint(ctx context.Context) (string, error) {
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return m.GetLoadBalancerEndpointResp, m.GetLoadBalancerEndpointErr
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}
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func (m *stubProviderMetadata) GetSubnetworkCIDR(ctx context.Context) (string, error) {
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return m.GetSubnetworkCIDRResp, m.GetSubnetworkCIDRErr
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}
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func (m *stubProviderMetadata) List(ctx context.Context) ([]metadata.InstanceMetadata, error) {
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return m.ListResp, m.ListErr
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}
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func (m *stubProviderMetadata) Self(ctx context.Context) (metadata.InstanceMetadata, error) {
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return m.SelfResp, m.SelfErr
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}
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func (m *stubProviderMetadata) GetInstance(ctx context.Context, providerID string) (metadata.InstanceMetadata, error) {
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return m.GetInstanceResp, m.GetInstanceErr
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}
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func (m *stubProviderMetadata) Supported() bool {
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return m.SupportedResp
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}
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func (m *stubProviderMetadata) SupportsLoadBalancer() bool {
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return m.SupportsLoadBalancerResp
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}
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func (m *stubProviderMetadata) UID(ctx context.Context) (string, error) {
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return m.UIDResp, m.UIDErr
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}
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type stubCloudControllerManager struct {
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SupportedResp bool
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}
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func (m *stubCloudControllerManager) Image(k8sVersion versions.ValidK8sVersion) (string, error) {
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return "stub-image:latest", nil
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}
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func (m *stubCloudControllerManager) Path() string {
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return "/stub-controller-manager"
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}
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func (m *stubCloudControllerManager) Name() string {
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return "stub"
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}
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func (m *stubCloudControllerManager) ExtraArgs() []string {
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return []string{}
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}
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func (m *stubCloudControllerManager) ConfigMaps() (kubernetes.ConfigMaps, error) {
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return []*k8s.ConfigMap{}, nil
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}
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func (m *stubCloudControllerManager) Secrets(ctx context.Context, instance, cloudServiceAccountURI string) (kubernetes.Secrets, error) {
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return []*k8s.Secret{}, nil
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}
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func (m *stubCloudControllerManager) Volumes() []k8s.Volume {
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return []k8s.Volume{}
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}
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func (m *stubCloudControllerManager) VolumeMounts() []k8s.VolumeMount {
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return []k8s.VolumeMount{}
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}
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func (m *stubCloudControllerManager) Env() []k8s.EnvVar {
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return []k8s.EnvVar{}
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}
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func (m *stubCloudControllerManager) Supported() bool {
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return m.SupportedResp
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}
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type stubCloudNodeManager struct {
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SupportedResp bool
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ImageResp string
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PathResp string
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ExtraArgsResp []string
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}
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func (m *stubCloudNodeManager) Image(k8sVersion versions.ValidK8sVersion) (string, error) {
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return m.ImageResp, nil
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}
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func (m *stubCloudNodeManager) Path() string {
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return m.PathResp
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}
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func (m *stubCloudNodeManager) ExtraArgs() []string {
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return m.ExtraArgsResp
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}
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func (m *stubCloudNodeManager) Supported() bool {
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return m.SupportedResp
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}
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type stubClusterAutoscaler struct {
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SupportedResp bool
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}
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func (a *stubClusterAutoscaler) Name() string {
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return "stub"
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}
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// Secrets returns a list of secrets to deploy together with the k8s cluster-autoscaler.
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func (a *stubClusterAutoscaler) Secrets(instance, cloudServiceAccountURI string) (kubernetes.Secrets, error) {
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return kubernetes.Secrets{}, nil
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}
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// Volumes returns a list of volumes to deploy together with the k8s cluster-autoscaler.
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func (a *stubClusterAutoscaler) Volumes() []k8s.Volume {
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return []k8s.Volume{}
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}
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// VolumeMounts returns a list of volume mounts to deploy together with the k8s cluster-autoscaler.
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func (a *stubClusterAutoscaler) VolumeMounts() []k8s.VolumeMount {
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return []k8s.VolumeMount{}
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}
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// Env returns a list of k8s environment key-value pairs to deploy together with the k8s cluster-autoscaler.
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func (a *stubClusterAutoscaler) Env() []k8s.EnvVar {
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return []k8s.EnvVar{}
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}
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func (a *stubClusterAutoscaler) Supported() bool {
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return a.SupportedResp
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}
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