Available since 2.25.0
Mirantis Container Cloud Bootstrap v2 provides best user experience to set up Container Cloud. Using Bootstrap v2, you can provision and operate management clusters using required objects through the Container Cloud web UI.
Basic concepts and components of Bootstrap v2 include:
- Bootstrap cluster
Bootstrap cluster is any kind-based Kubernetes cluster that contains a minimal set of Container Cloud bootstrap components allowing the user to prepare the configuration for management cluster deployment and start the deployment. The list of these components includes:
- Bootstrap Controller
Controller that is responsible for:
Configuration of a bootstrap cluster with provider-specific charts through the bootstrap Helm bundle.
Configuration and deployment of a management cluster and its related objects.
- Helm Controller
Operator that manages Helm chart releases. It installs the Container Cloud bootstrap and provider-specific charts configured in the bootstrap Helm bundle.
- Public API charts
Helm charts that contain custom resource definitions for Container Cloud resources of supported providers.
- Admission Controller
Controller that performs mutations and validations for the Container Cloud resources including cluster and machines configuration.
- Bootstrap web UI
User-friendly web interface to prepare the configuration for a management cluster deployment.
Currently one bootstrap cluster can be used for deployment of only one management cluster. For example, to add a new management cluster with different settings, a new bootstrap cluster must be recreated from scratch.
- Bootstrap region
Identifier of a physical location, for example, a data center that has access to one or several cloud provider back ends. The
BootstrapRegionobject is introduced in Container Cloud Bootstrap v2 enabling the user to select a location and provider to serve that region. The management cluster created in the bootstrap cluster inherits the region name from the
BootstrapRegionobject and uses the selected provider as primary provider for infrastructure and machines.
BootstrapRegionis the first object to create in the bootstrap cluster for the Bootstrap Controller to identify and install required provider components onto the bootstrap cluster. After, the user can prepare and deploy a management cluster with related resources.
The bootstrap region is a starting point for the cluster deployment. The user needs to approve the
BootstrapRegionobject. Otherwise, the Bootstrap Controller will not be triggered for the cluster deployment.
- Bootstrap Helm bundle
Helm bundle that contains charts configuration for the bootstrap cluster. This object is managed by the Bootstrap Controller that updates the bundle depending on a provider selected by the user in the
BootstrapRegionobject. The Bootstrap Controller always configures provider-related charts listed in the
regionalsection of the Container Cloud release for the selected provider. Depending on the provider and cluster configuration, the Bootstrap Controller may update or reconfigure this bundle even after the cluster deployment starts. For example, the Bootstrap Controller enables the provider in the bootstrap cluster only after the bootstrap region is approved for the deployment.