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Add Concourse to a test cluster

Pre-requisites

  • A test cluster. For this guide, we’ll assume it’s called david-test1
  • You must install concourse
  • You must have fly installed

Process

node_groups_count = {
    live    = "54"
    manager = "4"
    default = "3" > "4"
  }
  node_size = {
    live    = ["r5.xlarge", "r5.2xlarge", "r5a.xlarge"]
    manager = ["m5.xlarge", "m5.2xlarge", "m5a.xlarge"]
    default = ["m5.large", "m5.xlarge", "m5a.large"] > ["m5.xlarge", "m5.2xlarge", "m5a.xlarge"]
  }
  • Apply the changes using below terraform workflow:
terraform init
terraform workspace select <WorkspaceName>
terraform plan -var "enable_oidc_associate=false"
terraform apply -var "enable_oidc_associate=false"
terraform init
terraform workspace select <WorkspaceName>
terraform plan
terraform apply -target=module.concourse
  • Clone the concourse repository.

  • Login to Concourse

For this step you will need to authenticate to Concourse using your instance’s local username and password. These are stored in the kubernete secret concourse-web in the concourse namespace, and can be obtained using the cloud-platform cli tool:

cloud-platform decode-secret -n concourse -s concourse-web

Username and password are stored in the local-users key-value pair:

"local-users": "[local-username]/[local-password]"
  • Once you have these values to hand, login to Concourse with fly
fly --target david-test1 login \
    --team-name main \
    --concourse-url https://concourse.apps.david-test1.cloud-platform.service.justice.gov.uk

Follow the URL this command outputs, choose to login with Username/Password, and enter your local username credentials.

  • Apply your pipeline
fly --target david-test1 set-pipeline \
    --pipeline plan-pipeline \
    --config pipelines/david-test1/main/plan-environments.yaml

Repeat this command whenever you make changes to the pipeline yaml file.

  • Set up secrets

If your pipeline requires secrets, such as AWS credentials, you need to define those as kubernetes secrets in the concourse-main namespace (or concourse-<team name> if you’re using a different concourse team, rather than main)

This page was last reviewed on 16 March 2023. It needs to be reviewed again on 16 June 2023 by the page owner #cloud-platform .
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