Discover an existing Harness SMP installation

Extract configuration from an existing Harness SMP installation so the SMP Operator can discover it.

If you have an existing Harness SMP installation and want it to be discovered by the Harness SMP Operator, use the script generate-harness-values.sh to extract your current configuration.

This topic covers what the script does, how to run it, the two files it generates, how to install with those files using either helm or clustermgr, and how to verify the result in the Installer UI.

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What the Script Does

The generate-harness-values.sh script connects to your running cluster, reads the existing Harness Helm release values and Kubernetes secrets, and generates the files needed for Operator to discover your existing installation.

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Usage

Download the script: generate-harness-values.sh, and execute the following commands in your terminal.

# outputs two files: tfi-values.yaml and harness-values.yaml <a href="#outputs-two-files-tfi-valuesyaml-and-harness-valuesyaml" id="outputs-two-files-tfi-valuesyaml-and-harness-valuesyaml"></a>

# option 1: after downloading the script from this page <a href="#option-1-after-downloading-the-script-from-this-page" id="option-1-after-downloading-the-script-from-this-page"></a>
chmod +x generate-harness-values.sh
./generate-harness-values.sh

# option 2: if running from extracted clustermgr package <a href="#option-2-if-running-from-extracted-clustermgr-package" id="option-2-if-running-from-extracted-clustermgr-package"></a>
./values-migrator/generate-harness-values.sh

Flag	Default	Description
-n, --namespace	harness	Kubernetes namespace of existing Harness install
-r, --release	harness	Helm release name

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Generated Files

The script generates two files:

1. tfi-values.yaml - Contains cluster.tfi.* values extracted from the existing install:

   cluster:
     tfi:
       ci: false
       cd: true
       ccm: false
       sto: false
       srm: false
       ff: false
       chaos: false
       scs: false
       dbops: false
       code: false
       iacm: false
       idp: false
       harnessLicense: "..."
       postgresqlPassword: "..."
       mongodbPassword: "..."
       minioPassword: "..."
       additionalFeatureFlags: |
         FEATURE_FLAG_1
         FEATURE_FLAG_2

2. harness-values.yaml - Contains Helm values (global: and harness: sections, excluding module flags and license which are in tfi-values.yaml).

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Install with Discovered Values

After the script generates the two files, pass them to your install command. In this step, the install command supplies your existing configuration to the operator.

helm

helm install platform-installer ./platform-installer-<VERSION>.tgz -n harness --create-namespace \
  -f tfi-values.yaml \
  --set-file cluster.helmValues.harness=harness-values.yaml \
  -f override.yaml \
  -f override-<ingress>.yaml

• Use the generated tfi-values.yaml and harness-values.yaml with helm install.

• Reference the appropriate override and ingress files from the Configure and Install section.

clustermgr

After running the script, use the generated files with clustermgr install-pi:

./clustermgr install-pi \
  --dns <your-dns> \
  --namespace harness \
  --email <admin-email> \
  --password '<password>' \
  --version <version> \
  --multi-node \
  --pi-set cluster.triggerInstall=false \
  --pi-set cluster.tfi.storageClass=<storage-class> \
  --pi-set cluster.profile=<profile-type> \
  --pi-values tfi-values.yaml \
  --pi-set-file cluster.helmValues.harness=harness-values.yaml

For air-gapped environments, add the registry flags:

./clustermgr install-pi \
  --dns <your-dns> \
  --namespace harness \
  --registry-host registry.example.com \
  --registry-prefix your-prefix \
  --registry-user <user> \
  --registry-password '<password>' \
  --email <admin-email> \
  --password '<password>' \
  --version <version> \
  --multi-node \
  --pi-set cluster.triggerInstall=false \
  --pi-set cluster.tfi.storageClass=<storage-class> \
  --pi-set cluster.profile=<profile-type> \
  --pi-values tfi-values.yaml \
  --pi-set-file cluster.helmValues.harness=harness-values.yaml

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Post-Discovery Verification

1. Access the Installer UI at https://<YOUR_DNS>/pi

2. Navigate to Global Variables and verify that modules, license, and database passwords are populated correctly

3. Navigate to Helm Releases → harness → user/values.yaml and verify the values from harness-values.yaml are populated