A helm chart is needed for installing an application on the eHealth Platform in a docker container ( Intro to charts ).This helm chart will be supplied by the Platform and will among other things define:
- Containers
- How to deploy a container to the Kubernetes environment
- How to monitor if the container is ready to receive requests and if it is still alive
- Which ports to send requests to
- How much resources the container is expected to use, and how much it is allowed to use in total
- Service Discovery
- Which dns name to reach the application on (internally on the cluster)
- Which version of the application to send requests to
- Ingress
- Which dns name and path to reach the application on from the internet (if any)
- Which port to receive requests on
- Rewrite paths if needed
Configuration
The chart can be configured with a values file in yaml format. This file can be used to override default configuration from the chart or to enable/disable feature in the chart.
The values in the values file, is dependent on the chart. But an example could be the following:
image: "my-new-service" imageTag: "v1.0.2" component: "my-new-service" appVersion: "1.0.0" containerPort: 80 ingress: hostname: myservice.$ENV_BASEURL livenessProbe: httpPath: "/" readinessProbe: httpPath: "/"