Upgrading DevOps Loop

After you complete the required backup and pre-upgrade tasks, you can upgrade DevOps Loop to a newer version.

Before you begin

Ensure that you have completed the following tasks:

Backed up DevOps Loop. See Backing up DevOps Loop.
Ensured that you have access to the Kubernetes cluster and the Helm CLI.
Verified that the Helm chart repository is reachable from your environment.
Deleted any existing namespaces that are used by Code dev containers running in user namespaces, when applicable.

About this task

You can upgrade DevOps Loop by using one of the following methods:

Manual Helm upgrade - Use this method to upgrade the DevOps Loop platform without enabling Harbor.
Installation script upgrade - Use this method if you want to enable Harbor during the upgrade. Configure the Harbor parameters before you run the installation script.
Note:
Upgrading the DevOps Loop platform updates the platform components only. Existing loops are not modified and continue to use their existing sample data, tasks, and Loop Genie TASKS repository and velocity plugins. To use the sample applications, tasks, and Loop Genie capabilities that are introduced in version 2.0.2, create a new loop after the platform upgrade.

Upgrade DevOps Loop without Harbor

Run the following commands to set environment variables for the upgrade:
```
HELM_NAME=devops-loop
NAMESPACE=devops-loop
LOOP_CHART_VERSION=2.0.201
```

Run the following command to initialize the additional Helm options:

export ADDITIONAL_HELM_OPTIONS="--set option1=value1 --set option2=value2"

Run the following command to retrieve the existing Helm values:

helm get values ${HELM_NAME} \
  --namespace ${NAMESPACE} \
  > user_input_values.yaml

Retrieve the existing Helm values again to verify the configuration by running the following command:
```
ADDITIONAL_HELM_OPTIONS=${ADDITIONAL_HELM_OPTIONS:-}
helm get values ${HELM_NAME} --namespace ${NAMESPACE}
```

Run the following command to upgrade DevOps Loop:

helm upgrade "${HELM_NAME}" oci://hclcr.io/devops-automation-helm/hcl-devops-loop \
  --namespace ${NAMESPACE} \
  --version=${LOOP_CHART_VERSION} \
  -f user_input_values.yaml \
  ${ADDITIONAL_HELM_OPTIONS}

Run the following command to verify that all the DevOps Loop pods and components are running:
```
kubectl get pods -n devops-loop
```

You have upgraded DevOps Loop without enabling Harbor.

Upgrade DevOps Loop with Harbor enabled

helm registry login hclcr.io \
  --username <username> \
  --password <password>

Run the following command to download the Helm chart:

helm pull oci://hclcr.io/devops-automation-helm/hcl-devops-loop --version 2.0.201 --untar

Set the following variables:

Set the environment variables
export HELM_NAME=devops-loop
export NAMESPACE=devops-loop

Run the following command to create the HCL Container Registry image pull secret:

kubectl create secret docker-registry hcl-entitlement-key \
    --docker-username=<accountID>
    --docker-password=<entitlementKey> \
    --docker-server=hclcr.io  
    -n ${NAMESPACE}

Create the Harbor object storage secret by running the following command:

kubectl create secret generic harbor-s3-secret \
  -n ${NAMESPACE} \
  --from-literal=accesskey=<ACCESS_KEY> \
  --from-literal=secretkey=<SECRET_KEY>

Run the following command to export the current Helm values:
```
helm get values ${HELM_NAME} \
  -n ${NAMESPACE} \
  > user_input_values.yaml
```
Update the installation script (hcl-devops-loop/scripts/HCL-loop-XXX-install.sh) with the following changes:
- Add placeholders and instructions for the required environment-specific details, including:
  - Domain name
  - License information
  - TLS certificate details
  - Storage class configuration
  - Update both Helm upgrade commands in the installation script to include the user values file:
```
-f user_input_values.yaml
```
    This ensures that all user-specific configuration is applied consistently during both Helm upgrade operations.
For example:
```
helm upgrade --install ${HELM_NAME} \
  oci://hclcr.io/devops-automation-helm/hcl-devops-loop \
  --version ${LOOP_CHART_VERSION} \
  -f user_input_values.yaml \
  --set harbor.enabled=false \
  --hide-notes \
  --timeout 30m \
  -n ${NAMESPACE} || return 1

helm upgrade --install ${HELM_NAME} \
  oci://hclcr.io/devops-automation-helm/hcl-devops-loop \
  --version ${LOOP_CHART_VERSION} \
  -f user_input_values.yaml \
  ${HARBOR_HELM_OPTIONS} \
  --hide-notes \
  --timeout 30m \
  -n ${NAMESPACE} || return 1
```

Update the installation script with the required Harbor configuration:

HARBOR_ENABLED=true
HARBOR_S3_BUCKET=<bucket>
HARBOR_S3_REGION=<region>
HARBOR_S3_ENDPOINT=<endpoint>
HARBOR_TRIVY_STORAGE_CLASS=<storage-class>
HARBOR_OIDC_ADMIN_GROUP=<group>

Run the modified installation script for upgrade.

For example:
```
bash HCL-loop-K8s-install.sh
```
Run the following command to verify that the Harbor pods are running:
```
kubectl get pods -n ${NAMESPACE}
```
To confirm that Harbor is accessible and the URL is active, open a web browser and navigate to:
```
https://harbor.<DOMAIN>
```

You have upgraded DevOps Loop with Harbor enabled.