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Example: Offer Jenkins as a Service via Openslice

Before reading this example please make sure that you went through the Design Helm as a Service

We will use the Kind: Application of ArgoCD and create a ResourceFacingServiceSpecification for Jenkins

1. Go to Service Specifications
2. Create New Specification
3. Give a Name, eg. jenkinsrfs
4. Go to Resource Specification Relationships
5. Assign ```Application@argoproj.io/v1alpha1@kubernetes@https://10.10.10.144:6443/```

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Focus now on the characteristics configuration.

First we need to map the lifecycle of ArgoCD Application to TMF Resource State

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In ArgoCD the field health.status has the value that we need to check (Healty, Progressing, etc)

The _CR_SPEC can be designed first in a YAML or json editor. Let's see a YAML definition:

```

apiVersion: argoproj.io/v1alpha1 kind: Application metadata: finalizers: - resources-finalizer.argocd.argoproj.io name: openslice-jenkins namespace: argocd spec: project: default destination: namespace: opencrdtest name: in-cluster source: repoURL: https://charts.jenkins.io targetRevision: 4.6.1 chart: jenkins helm: values: | controller: service: type: ClusterIP syncPolicy: automated: prune: true selfHeal: true allowEmpty: false syncOptions: - Validate=false - CreateNamespace=true - PrunePropagationPolicy=foreground - PruneLast=true - RespectIgnoreDifferences=true ```

NOTICE

On each installation OSOM will change the name of the resource in order to be unique (will have a UUID)

name: openslice-jenkins

destination namespace that ArgoCD will use is the name opencrdtest

destination: namespace: opencrdtest

This implies that ArgoCD installs the Jenkins always in the same namespace

To avoid this we will create a simple pre-provision rule to change the namespace properly

See the following image:

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  1. Drag-Drop the _CR_SPEC characteristic of jenkinsrfs from the Service>Text blocks
  2. Drag-Drop Text>Formatted text block
  3. Drag-Drop Text>Multi-line text input block
  4. Copy paste the YAML text
  5. Change the spec: destination:namespace to the value %s
  6. Drag-Drop Lists>Create list with block delete 2 items (click the gear icon). Connect it to formatted text block
  7. Drag-Drop Context>Current Service Order block and select the id. Connect it to the List
  8. Save the PRE_PROVISION Rule

Expose the service to your users

Expose then as CustomerFacingServiceSpecification by using the previous RFSS as Service Specification Relationship 1. Create a Jenkins service and mark as Bundle and save it 2. Go to Service Specification Relationships and assign Jenkinsrfs 3. Add also a Logo if you wish

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Expose it now to a Category and a Catalog to be available for ordering.

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Order the service

Order the service from the catalog.

Soon the order will be completed and the Services will be active

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How to access the Jenkins installation:

From the Supporting services of the Service Order, select the ResourceFacingService (jenkinsrfs)

The ResourceFacingService has also supporting resources in resource inventory.

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One is the resource reference to the application (e.g. cr_tmpname...), the other is a secret (e.g. cr87893...).

Click to go to the secret resource (This is in the Resource inventory of OpenSlice)

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Use them to login in your Jenkins.

Exposing Jenkins to you external is a matter of cluster configuration and request (nodeport, load balancing, etc)! This is not a topic for this example