mirror of
https://github.com/edgelesssys/constellation.git
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66 lines
2.3 KiB
Go
66 lines
2.3 KiB
Go
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package gcp
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import (
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"fmt"
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"strings"
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"github.com/edgelesssys/constellation/coordinator/core"
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"github.com/spf13/afero"
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)
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// ConfigWriter abstracts writing of the /etc/gce.conf config file.
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type ConfigWriter interface {
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// WriteGCEConf writes the config to the filesystem of the current instance.
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WriteGCEConf(config string) error
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}
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// CloudControllerManager holds the gcp cloud-controller-manager configuration.
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type CloudControllerManager struct {
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writer ConfigWriter
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}
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// NewCCM creates a new CloudControllerManager.
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func NewCCM() *CloudControllerManager {
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return &CloudControllerManager{
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writer: &Writer{fs: afero.Afero{Fs: afero.NewOsFs()}},
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}
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}
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// Image returns the container image used to provide cloud-controller-manager for the cloud-provider.
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func (c *CloudControllerManager) Image() string {
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// TODO: use newer "cloud-provider-gcp" from https://github.com/kubernetes/cloud-provider-gcp when newer releases are available
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return "ghcr.io/malt3/cloud-provider-gcp:latest"
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}
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// Path returns the path used by cloud-controller-manager executable within the container image.
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func (c *CloudControllerManager) Path() string {
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return "/cloud-controller-manager"
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}
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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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func (c *CloudControllerManager) Name() string {
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return "gce"
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}
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// PrepareInstance is called on every instance before deploying the cloud-controller-manager.
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// Allows for cloud-provider specific hooks.
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func (c *CloudControllerManager) PrepareInstance(instance core.Instance, vpnIP string) error {
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// GCP CCM expects "/etc/gce.conf" to contain the GCP project-id and other configuration.
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// reference: https://github.com/kubernetes/cloud-provider-gcp/blob/master/cluster/gce/gci/configure-helper.sh#L791-L892
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var config strings.Builder
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config.WriteString("[global]\n")
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projectID, _, _, err := splitProviderID(instance.ProviderID)
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if err != nil {
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return fmt.Errorf("retrieving GCP project-id failed: %w", err)
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}
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config.WriteString(fmt.Sprintf("project-id = %s\n", projectID))
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config.WriteString("use-metadata-server = false\n")
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return c.writer.WriteGCEConf(config.String())
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}
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// Supported is used to determine if cloud controller manager is implemented for this cloud provider.
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func (c *CloudControllerManager) Supported() bool {
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return true
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}
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