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Configuration

In general, the ABAP Environment pipeline supports different scenarios. The idea is that only configured stages are executed and the user is able to choose the appropriate stages. In this section, you can learn how to create a configuration in a (GitHub) repository to run an ABAP Environment Pipeline used for testing. This specific example will create a pipeline, which executes ATC checks after creating a new ABAP Environment system. In the end, the system will be deprovisioned.

You can have a look at different pipeline configurations in our SAP-samples repository.

1. Prerequisites

  • Configure your Jenkins Server according to the documentation.
  • Create a git repository on a host reachable by the Jenkins server (e.g. GitHub.com). The pipeline will be configured in this repository. Create a GitHub User with read access.
  • The entitlements for the ABAP Environment system are available in the SAP Cloud Platform global account and assigned to the subaccount.
  • A Cloud Foundry Organization & Space with the allocated entitlements are available.
  • A Cloud Foundry User & Password with the required authorization ("Space Developer") in the Organization and Space are available. User and Password were saved in the Jenkins Credentials Store.

2. Jenkinsfile

Create a file named Jenkinsfile in your repository with the following content:

@Library('piper-lib-os') _

abapEnvironmentPipeline script: this

The annotation @Library('piper-lib-os') is a reference to the Jenkins Configuration, where you configured the Piper Library as a "Global Pipeline Library". If you want to avoid breaking changes we advise you to use a specific release of the Piper Library instead of the default master branch. This can be achieved by either adapting the configuration (see documentation) or by specifying the release within the annotaion:

@Library('piper-lib-os@v1.53.0') _

An Overview of the releases of the Piper Library can be found here.

3. Configuration for the Communication

The communication to the ABAP system is done using a Communication Arrangement. The Communication Arrangement is created during the pipeline stage Prepare System after the system creation via the command cf create-service-key. The configuration for the command needs to be stored in a JSON file. Create the file sap_com_0510.json in the repository with the following content:

{
  "scenario_id": "SAP_COM_0510",
  "type": "basic"
}

Please have a look at the step documentation for more details.

4. Configuration for Cloning the repositories

If you have specified the Clone Repositories Stage you can make use of a dedicated configuration file containing the repositories to be pulled and the branches to be switched on. The repositories flag makes use of such a configuration file and helps executing a Pull, Clone and Checkout of the Branches of the Repositores. Create the file repositories.yml with the following structure containing your repositories including the branches for this Stage.

repositories:
- name: '/DMO/GIT_REPOSITORY'
  branch: 'master'
- name: '/DMO/GIT_REPO'
  branch: 'master'

You can later use the repositories.yml file for the repositories parameter in the Clone Repositories stage used in chapter 7. Technical Pipeline Configuration.

5. Configuration for ATC

Create a file atcConfig.yml to store the configuration for the ATC run. In this file, you can specify which Packages or Software Components shall be checked. Please have a look at the step documentation for more details. Here is an example of the configuration:

atcobjects:
  softwarecomponent:
    - name: "/DMO/REPO"

Please have a look at the step documentation for more details.

6. Technical Pipeline Configuration

Create a file .pipeline/config.yml where you store the configuration for the pipeline, e.g. apiEndpoints and credentialIds. The steps make use of the Credentials Store of the Jenkins Server. Here is an example of the configuration file:

general:
  cfApiEndpoint: 'https://api.cf.eu10.hana.ondemand.com'
  cfOrg: 'your-cf-org'
  cfSpace: 'yourSpace'
  cfCredentialsId: 'cfAuthentification'
  cfServiceInstance: 'abapEnvironmentPipeline'
  cfServiceKeyName: 'jenkins_sap_com_0510'
stages:
  Prepare System:
    cfService: 'abap'
    cfServicePlan: 'standard'
    abapSystemAdminEmail: 'user@example.com'
    abapSystemDescription: 'ABAP Environment Q System'
    abapSystemIsDevelopmentAllowed: false
    abapSystemID: 'H02'
    abapSystemSizeOfPersistence: 4
    abapSystemSizeOfRuntime: 1
    cfServiceKeyConfig: 'sap_com_0510.json'
  Clone Repositories:
    strategy: 'Pull'
    repositories: 'repositories.yml'
  ATC:
    atcConfig: 'atcConfig.yml'
steps:
  cloudFoundryDeleteService:
    cfDeleteServiceKeys: true

Some stages may only be executed if a certain condition is met. For example: the stage Prepare System will only be executed if it is configured in the stages section. Also, the created system will be deprovisioned in the cleanup routine - although it is necessary to configure the step cloudFoundryDeleteService as above.

Prepare system

The example values for the Prepare System stage are a suggestion. Please change them accordingly and don't forget to enter your own email address. Please be aware that creating a SAP Cloud ABAP Environment instance may incur costs.

Please have a look at the step documentation for more details.

Clone Repositories

If the Clone Repositories stage is configured, you can specify the strategy that should be performed on the Software Components and the Branches that you have configured in the respositories.yml file in step 4. Configuration for Cloning the repositories. Per default the strategy will be set to Pull if not specified. The following strategies are supported and can be used on the Software Components and Branches:

Note that you can use the repositories.yml file with the repositories parameter consistently for all strategies.

The values for cfApiEndpoint,cfOrg and cfSpace can be found in the respective overview pages in the SAP Cloud Platform Cockpit. The Cloud Foundry credentials, saved in the Jenkins credentials store with the ID cfCredentialsId, must refer to a user with the required authorizations ("Space Developer") for the Cloud Foundry Organization and Space.

7. Create a Jenkins Pipeline

On your Jenkins server click on New Item to create a new pipeline. Provide a name and select the type Pipeline. On the creation screen for the pipeline, scroll to the section Pipeline and select Pipeline script from SCM. Provide the URL (and credentials - if required) of the repository, in which you configured the pipeline. Make sure the Script Path points to your Jenkinsfile - if you created the Jenkinsfile according to the documentation above, the default value should be correct.

If you want to configure a build trigger, this can be done in the section of the same name. Here is one example: to run the pipeline every night, you can tick the box "Run periodically". In the visible input field, you can specify a shedule. Click on the questionsmark to read the documentation. The following example will result in the pipeline running every night between 3am and 4am.

H H(3-4) * * *

Extension

You can extend each stage of this pipeline following the documentation.

For example, this can be used to display ATC results utilizing the checkstyle format with the Warnings Next Generation Plugin (GitHub Project). To achieve this, create a file .pipeline/extensions/ATC.groovy with the following content:

void call(Map params) {
  //access stage name
  echo "Start - Extension for stage: ${params.stageName}"

  //access config
  echo "Current stage config: ${params.config}"

  //execute original stage as defined in the template
  params.originalStage()

  recordIssues tools: [checkStyle(pattern: '**/ATCResults.xml')], qualityGates: [[threshold: 1, type: 'TOTAL', unstable: true]]

  echo "End - Extension for stage: ${params.stageName}"
}
return this

While tools: [checkStyle(pattern: '**/**/ATCResults.xml')] will display the ATC findings using the checkstyle format, qualityGates: [[threshold: 1, type: 'TOTAL', unstable: true]] will set the build result to UNSTABLE in case the ATC results contain at least one warning or error.

Local Jenkins

If you are using a local Jenkins you may have to adapt the Jenkins URL in the configuration if the CheckStyl Plugin shows this error: "Can't create fingerprints for some files".

Stage Names

The stage name for the extension is usually the displayed name, e.g. ATC.groovy or Prepare System.groovy. One exception is the generated Post stage. While the displayed name is "Declarative: Post Actions", you can extend this stage using Post.groovy.