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The preparations described below are required to install Usage Engine using Helm chart and Docker image.
Fetching and Configuring Helm Chart
You will be provided to download a Helm chart with the instructions below:
- Helm chart: mediationzone for platform
When you are required to enter the <chart version>, refer to /wiki/spaces/DRXXE/pages/6194875 for the Helm Chart version required
Add the helm repository
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$ helm repo add usage-engine-private-edition 'https://digitalroute-public.github.io/usage-engine-private-edition'
$ helm repo update |
Check if the chart is available:
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$ helm search repo -l usage-engine-private-edition/usage-engine-private-edition --version <chart version>
Example:
$ helm search repo -l usage-engine-private-edition/usage-engine-private-edition --version 2.0.0
#The output:
NAME CHART VERSION APP VERSION DESCRIPTION
usage-engine-private-edition/usage-engine-private-edition 2.0.0 The Usage Engine Private Edition helm chart |
Create a directory dedicated for the installation and download the Helm chart.
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$ mkdir <your directory>
$ cd <your directory>
$ helm fetch usage-engine-private-edition/usage-engine-private-edition --version <chart version> --untar |
Confirm that the Helm chart is defined for aws by viewing the file: mediationzone / values.yaml
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$ cat mediationzone/values.yaml | grep environment:
# Only on-premise and aws supported for now
environment: aws |
Verify that the AWS credentials are correct. Restore them in case it is needed.
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$ aws sts get-caller-identity
Restore them in case it is needed:
$ aws configure
aws_access_key_id = <access key id>
aws_secret_access_key = <secret access key>
output = json
region = <region where you have your EKS cluster>
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If required, modify the Helm chart for the needed level of Access Control for Kubernetes Resources
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Usage Engine relies on Role Based Access Control (RBAC) when specifying the level of access needed for the kubernetes resources involved in any given Usage Engine installation. Essentially, to make sure that the service account used has the right level of access in order for Usage Engine to function properly. |
The following helm values can be used to switch off features relying on ClusterRoles, see the Helm chart for further details:
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| title | Persistent Storage required for a possible downgrade |
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In the case a Downgrade is needed later, you must define Persistent Storage.
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