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Opstella Clear Session Utility Installation

Last updated: Mar 13, 2026

🟢 Management 🟦 Non-Production Workload 🟥 Production Workload

Opstella Clear Session Utility is a Service in Opstella that facilitate Single Sign-On operations.

Prerequisites

🛡️TLS Certificate for Opstella Clear Session Utility
- Opstella Clear Session Utility will be exposed through Web with HTTPS.

Preparation

Kubernetes Cluster Preparation

`🟢 Management` Kubernetes Cluster

Connect to 🟢 Management Kubernetes Cluster ; i.e w/ Kubeconfig File

Ensure you have defined and loaded your Global Shell Variables as described in Shell Variables.
Terminal window
```
source $BASE_WORKING_DIR/shell-values/kubernetes/management_cluster.vars.sh
```
Prepare 🟢 Management Kubernetes Cluster Information

Ensure K8S_INGRESSCLASS_NAME, K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, BASE_DOMAIN, OPSTELLA_UI_DOMAIN are defined as per the Shell Variables guide.

`🟦 Non-Production Workload` Kubernetes Cluster

Connect to 🟦 Non-Production Workload Kubernetes Cluster ; i.e w/ Kubeconfig File

Ensure you have defined and loaded your Global Shell Variables as described in Shell Variables.
Terminal window
```
source $BASE_WORKING_DIR/shell-values/kubernetes/nonprod_cluster.vars.sh
```
Prepare 🟦 Non-Production Workload Kubernetes Cluster Information

Ensure K8S_INGRESSCLASS_NAME, K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, BASE_DOMAIN, ARGOCD_DOMAIN, HEADLAMP_DOMAIN are defined as per the Shell Variables guide.

`🟥 Production Workload` Kubernetes Cluster

Connect to 🟥 Production Workload Kubernetes Cluster ; i.e w/ Kubeconfig File

Ensure you have defined and loaded your Global Shell Variables as described in Shell Variables.
Terminal window
```
source $BASE_WORKING_DIR/shell-values/kubernetes/prod_cluster.vars.sh
```
Prepare 🟥 Production Workload Kubernetes Cluster Information

Ensure K8S_INGRESSCLASS_NAME, K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, BASE_DOMAIN, ARGOCD_DOMAIN, HEADLAMP_DOMAIN are defined as per the Shell Variables guide.

Opstella Platform Clear Session Utility Preparation

Prepare Helm Values Configurations for Common Configurations
- image.repository, image.tag : Set your Opstella Platform Container Image Location, Version
  - Online Installation
  - Air-gapped / Local Registry
  (Ensure OPSTELLA_REGISTRY is loaded from variables)
  
  Ensure HARBOR_DOMAIN is defined as per the Shell Variables guide.
  
  (Ensure OPSTELLA_REGISTRY is loaded from variables)
  (Ensure OPSTELLA_CLEAR_SESSION_VERSION, OPSTELLA_UI_DOMAIN, and OPSTELLA_CLEAR_SESSION_ALLOWED_ORIGINS are loaded from variables)

Prepare Helm Values Configurations for 🟢 Management Kuberenetes Cluster

Ensure K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, K8S_INGRESSCLASS_NAME, GITLAB_DOMAIN, HARBOR_DOMAIN, SONARQUBE_DOMAIN, DEFECTDOJO_DOMAIN, VAULT_DOMAIN, OPSTELLA_UI_DOMAIN are defined as per the Shell Variables guide.

2.1 Prepare Domains on 🟢 Management Kubernetes Cluster

OPSTELLA_CLEAR_SESSION_DOMAIN : Set your Domain for Opstella Platform Clear Session

(Ensure OPSTELLA_CLEAR_SESSION_DOMAIN is loaded from variables)

2.3 Create Helm Values Configurations

cat <<EOF > $BASE_WORKING_DIR/helm-values/opstella-clear-session-devsecops-full-values.yaml
image:
  repository:  ${OPSTELLA_CLEAR_SESSION_IMAGE_REPOSITORY}
  tag: ${OPSTELLA_CLEAR_SESSION_IMAGE_TAG}
  pullPolicy: Always

nameOverride: opstella-clear-session
fullnameOverride: opstella-clear-session

imagePullSecrets:
  - name: registry-secret

serviceAccount:
  name:

ingress:
  enabled: true
  className: ${K8S_INGRESSCLASS_NAME}
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /\$2
  hosts:
    - host: ${OPSTELLA_CLEAR_SESSION_DOMAIN}
      paths:
        - path: /
          pathType: ImplementationSpecific
    - host: ${OPSTELLA_UI_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${GITLAB_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${HARBOR_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${SONARQUBE_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${VAULT_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${DEFECTDOJO_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
  tls:
    - secretName: ${K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME}
      hosts:
        - ${OPSTELLA_CLEAR_SESSION_DOMAIN}
        - ${OPSTELLA_UI_DOMAIN}
        - ${GITLAB_DOMAIN}
        - ${HARBOR_DOMAIN}
        - ${SONARQUBE_DOMAIN}
        - ${VAULT_DOMAIN}
        - ${DEFECTDOJO_DOMAIN}

containerPorts: 8000

env:
  - name: URL_ORIGIN
    value: '[${OPSTELLA_CLEAR_SESSION_ALLOWED_ORIGINS}]'

podSecurityContext:
  fsGroup: 1000

securityContext:
  seccompProfile:
    type: RuntimeDefault
  capabilities:
    drop: ["ALL"]
  runAsNonRoot: true
  privileged: false
  allowPrivilegeEscalation: false
  runAsGroup: 1000
  runAsUser: 1000

EOF

Prepare Helm Values Configurations for 🟢 Management Kuberenetes Cluster

Ensure K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, K8S_INGRESSCLASS_NAME, GRAFANA_DASHBOARD_DOMAIN are defined as per the Shell Variables guide.

3.3 Create Helm Values Configurations

cat <<EOF > $BASE_WORKING_DIR/helm-values/opstella-clear-session-observability-full-values.yaml
image:
  repository:  ${OPSTELLA_REGISTRY}
  tag: ${OPSTELLA_CLEAR_SESSION_VERSION}
  pullPolicy: Always

nameOverride: opstella-clear-session
fullnameOverride: opstella-clear-session

imagePullSecrets:
  - name: registry-secret

serviceAccount:
  name:

ingress:
  enabled: true
  className: ${K8S_INGRESSCLASS_NAME}
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /\$2
  hosts:
    - host: ${GRAFANA_DASHBOARD_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
  tls:
    - secretName: ${K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME}
      hosts:
        - ${GRAFANA_DASHBOARD_DOMAIN}

containerPorts: 8000

env:
  - name: URL_ORIGIN
    value: '[${OPSTELLA_CLEAR_SESSION_ALLOWED_ORIGINS}]'

podSecurityContext:
  fsGroup: 1000

securityContext:
  seccompProfile:
    type: RuntimeDefault
  capabilities:
    drop: ["ALL"]
  runAsNonRoot: true
  privileged: false
  allowPrivilegeEscalation: false
  runAsGroup: 1000
  runAsUser: 1000

EOF

Prepare Helm Values Configurations for 🟦 Non-Production Workload Kuberenetes Cluster

Ensure K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, K8S_INGRESSCLASS_NAME, ARGOCD_DOMAIN, HEADLAMP_DOMAIN are defined as per the Shell Variables guide.

4.3 Create Helm Values Configurations

cat <<EOF > $BASE_WORKING_DIR/helm-values/opstella-clear-session-nonprod-full-values.yaml
image:
  repository:  ${OPSTELLA_REGISTRY}
  tag: ${OPSTELLA_CLEAR_SESSION_VERSION}
  pullPolicy: Always

nameOverride: opstella-clear-session
fullnameOverride: opstella-clear-session

imagePullSecrets:
  - name: registry-secret

serviceAccount:
  name:

ingress:
  enabled: true
  className: ${K8S_INGRESSCLASS_NAME}
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /\$2
  hosts:
    - host: ${ARGOCD_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${HEADLAMP_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
  tls:
    - secretName: ${K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME}
      hosts:
        - ${ARGOCD_DOMAIN}
        - ${HEADLAMP_DOMAIN}

containerPorts: 8000

env:
  - name: URL_ORIGIN
    value: '[${OPSTELLA_CLEAR_SESSION_ALLOWED_ORIGINS}]'

podSecurityContext:
  fsGroup: 1000

securityContext:
  seccompProfile:
    type: RuntimeDefault
  capabilities:
    drop: ["ALL"]
  runAsNonRoot: true
  privileged: false
  allowPrivilegeEscalation: false
  runAsGroup: 1000
  runAsUser: 1000

EOF

Prepare Helm Values Configurations for 🟥 Production Workload Kuberenetes Cluster

Ensure K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME, K8S_INGRESSCLASS_NAME, ARGOCD_DOMAIN, HEADLAMP_DOMAIN are defined as per the Shell Variables guide.

5.3 Create Helm Values Configurations

cat <<EOF > $BASE_WORKING_DIR/helm-values/opstella-clear-session-prod-full-values.yaml
image:
  repository:  ${OPSTELLA_REGISTRY}
  tag: ${OPSTELLA_CLEAR_SESSION_VERSION}
  pullPolicy: Always

nameOverride: opstella-clear-session
fullnameOverride: opstella-clear-session

imagePullSecrets:
  - name: registry-secret

serviceAccount:
  name:

ingress:
  enabled: true
  className: ${K8S_INGRESSCLASS_NAME}
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /\$2
  hosts:
    - host: ${ARGOCD_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
    - host: ${HEADLAMP_DOMAIN}
      paths:
        - path: /clear-session(/|$)(.*)
          pathType: ImplementationSpecific
  tls:
    - secretName: ${K8S_INGRESS_TLS_CERTIFICATE_SECRET_NAME}
      hosts:
        - ${ARGOCD_DOMAIN}
        - ${HEADLAMP_DOMAIN}

containerPorts: 8000

env:
  - name: URL_ORIGIN
    value: '[${OPSTELLA_CLEAR_SESSION_ALLOWED_ORIGINS}]'

podSecurityContext:
  fsGroup: 1000

securityContext:
  seccompProfile:
    type: RuntimeDefault
  capabilities:
    drop: ["ALL"]
  runAsNonRoot: true
  privileged: false
  allowPrivilegeEscalation: false
  runAsGroup: 1000
  runAsUser: 1000

EOF

Installation

Install Opstella Clear Session for 🟢 Management Kuberenetes Cluster

1.1 Connect to 🟢 Management Kubernetes Cluster ; i.e w/ Kubeconfig File

Ensure you have defined and loaded your Global Shell Variables as described in Shell Variables.

source $BASE_WORKING_DIR/shell-values/kubernetes/management_cluster.vars.sh

1.2 Install Using local opstella-platform Helm Chart

helm upgrade --install clear-session \
  oci://asia-southeast1-docker.pkg.dev/opstella-dev/opstella-charts/generic-deployment \
  --version 0.3.15 \
  --namespace opstella-system \
  -f $BASE_WORKING_DIR/helm-values/opstella-clear-session-devsecops-full-values.yaml

Install Opstella Clear Session for 🟦 Non-Production Workload Kuberenetes Cluster

2.1 Connect to 🟦 Non-Production Workload Kubernetes Cluster ; i.e w/ Kubeconfig File

Ensure you have defined and loaded your Global Shell Variables as described in Shell Variables.

source $BASE_WORKING_DIR/shell-values/kubernetes/nonprod_cluster.vars.sh

2.2 Install Using local opstella-platform Helm Chart

helm upgrade --install clear-session \
  oci://asia-southeast1-docker.pkg.dev/opstella-dev/opstella-charts/generic-deployment \
  --version 0.3.15 \
  --namespace opstella-system \
  -f $BASE_WORKING_DIR/helm-values/opstella-clear-session-nonprod-full-values.yaml

Install Opstella Clear Session for 🟥 Production Workload Kuberenetes Cluster

3.1 Connect to 🟥 Production Workload Kubernetes Cluster ; i.e w/ Kubeconfig File

Ensure you have defined and loaded your Global Shell Variables as described in Shell Variables.

source $BASE_WORKING_DIR/shell-values/kubernetes/prod_cluster.vars.sh

3.2 Install Using local opstella-platform Helm Chart

helm upgrade --install clear-session \
  oci://asia-southeast1-docker.pkg.dev/opstella-dev/opstella-charts/generic-deployment \
  --version 0.3.15 \
  --namespace opstella-system \
  -f $BASE_WORKING_DIR/helm-values/opstella-clear-session-prod-full-values.yaml

Post-Installation

Opstella Clear Session Testing

Get Pod Status - Opstella Clear Session

kubectl get pods -n opstella-system

Opstella Clear Session should be Running

NAME                                     READY   STATUS    RESTARTS   AGE
... (deducted)
opstella-clear-session-XXXXXXX-YYYYY     1/1     Running   0          XdXh

Finished?

Use the below navigation to proceed

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Opstella Core Additional Resources

Opstella Clear Session Utility Installation

Prerequisites

Preparation

Kubernetes Cluster Preparation

🟢 Management Kubernetes Cluster

🟦 Non-Production Workload Kubernetes Cluster

🟥 Production Workload Kubernetes Cluster

Opstella Platform Clear Session Utility Preparation

Installation

Post-Installation

Opstella Clear Session Testing

Finished?

`🟢 Management` Kubernetes Cluster

`🟦 Non-Production Workload` Kubernetes Cluster

`🟥 Production Workload` Kubernetes Cluster