Applications Deployment CLI vs UI

When installing DKP, an AppDeployment resource is created for each enabled Platform Application. This AppDeployment resource references a ClusterApp, which then references the repository that contains a concrete declarative and preconfigured setup of an application, usually in the form of a HelmRelease. ClusterApps are cluster-scoped so that these Platform Applications are deployable to all Workspaces or Projects. Also refer to AppDeployment Resources from the Day 2 section of the Documentation.

Applications can be enabled and configured using the UI or CLI at both levels:

Workspace level for all clusters in a Workspace
Cluster level for specific clusters within a Workspace.

See the following table for an overview:

Desired level of configuration

CLI

UI

Cluster-scoped deployment

Create an AppDeployment, and specify target clusters in spec.clusterSelector.

Example deployment

Go to target workspace and enable through the application card, selecting the target clusters.

Example deployment

Workspace-scoped deployment

Create an AppDeployment without a spec.clusterSelector section. Automatically deploys to all clusters in the workspace.

Example deployment

Go to target workspace and enable through the application card, selecting all target clusters.

Example deployment

Cluster-scoped customization

Create an AppDeployment, and specify target clusters in spec.clusterSelector. Reference ConfigMap with customization overrides in clusterConfigOverrides.

Example deployment

Go to target workspace and enable through the application card. Select the target clusters, and establish customizations in the configuration service per cluster.

Example deployment

Workspace-scoped customization

Create an AppDeployment without a spec.clusterSelector section. Reference ConfigMap with customization overrides in clusterConfigOverrides. Automatically deploys customization to all clusters in the workspace.

Example deployment

Go to target workspace and enable through the application card. Manually select all clusters and copy-paste the customization in the configuration service for all clusters.

Example deployment

Next Topic

Applications Deployment in a Workspace