bootstrappers

Documentation

Index

• type CloudConfigDownloaderCleaner
  • func (c *CloudConfigDownloaderCleaner) Start(ctx context.Context) error
• type KubeletBootstrapKubeconfig
  • func (k *KubeletBootstrapKubeconfig) Start(_ context.Context) error

Types

type CloudConfigDownloaderCleaner

type CloudConfigDownloaderCleaner struct {
	Log  logr.Logger
	FS   afero.Afero
	DBus dbus.DBus
}

CloudConfigDownloaderCleaner is a runnable for cleaning up the legacy cloud-config-downloader resources. TODO(rfranzke): Remove this bootstrapper when the UseGardenerNodeAgent feature gate gets removed.

func (*CloudConfigDownloaderCleaner) Start

func (c *CloudConfigDownloaderCleaner) Start(ctx context.Context) error

Start performs the cleanup logic. Note that this function does only delete the following directories/files:

• /var/lib/cloud-config-downloader
• /etc/systemd/system/multi-user.target.wants/cloud-config-downloader.service (typically symlinks to /etc/systemd/system/cloud-config-downloader.service

The /etc/systemd/system/cloud-config-downloader.service file already gets removed by cloud-config-downloader itself when migrating to gardener-node-agent because it is no longer part of the original OperatingSystemConfig. Hence, cloud-config-downloader considers it as stale and cleans it up. All this still leaves some artefacts on the nodes (e.g., `systemctl status cloud-config-downloader` and `journalctl -u cloud-config-downloader` still works), however, maybe that's even a benefit in case of operations/ debugging activities. All nodes get rolled/replaced eventually (latest with the next OS/Kubernetes version update), so we leave the final cleanup for then (new nodes will have no traces of cloud-config-downloader whatsoever).

type KubeletBootstrapKubeconfig

type KubeletBootstrapKubeconfig struct {
	Log             logr.Logger
	FS              afero.Afero
	APIServerConfig config.APIServer
}

KubeletBootstrapKubeconfig is a runnable for creating a bootstrap kubeconfig for kubelet.

func (*KubeletBootstrapKubeconfig) Start

func (k *KubeletBootstrapKubeconfig) Start(_ context.Context) error

Start performs creation of the bootstrap kubeconfig.