Updating Cluster Configuration · CloudOps for Kubernetes

The base infrastructure and cluster configuration is managed by the docker-compose tooling provided by CloudOps for Kubernetes. You can modify many aspects of the configuration by updating your docker-commpose.override.yml file then re-running the docker-compose up command.

Procedure

note

Perform the following steps on the operations workstation, ideally using the workstation that you used for the initial setup. For more information, see the Operations Workstation documentation.

The procedure to update the base infrastructure and cluster configuration is:

Confirm that you have checked out the correct branch of the cloud-ops-kubernetes Git project on your operations workstation.
Obtain the docker-compose.override.yml file that you saved when you setup the cluster or last updated the configuration, and copy it into the root of the cloud-ops-kubernetes Git project.
Set the parameter TF_VAR_bootstrap_mode in the docker-compose.override.yml file to setup.
Read through the docker-compose.override.yml file and update your configuration as you require.
Run the Docker Compose command build to build the Docker image and update the CloudOps for Kubernetes cluster:
Run the following Docker Compose command to build the Docker image and apply the changes:
```
docker-compose up --build
```

The changes will be applied to the cluster configuration.

Save Important Files

Save the docker-compose.override.yml file and any dependencies, such as TLS keys, in a safe place.

important

You will need the docker-compose.override.yml file and any dependencies again to perform the following:

Update the cluster
Show the current state of the cluster
Create local Terraform configuration
Clean up the cluster

warning

Do not commit these files into Git. The docker-compose.override.yml file contains secrets and should be stored somewhere securely.