Testing CloudFoundry Apps..without CloudFoundry

About me

Technical Guidance Unit @ msg systems
organizer and speaker at #itconsapcj, now at it's 7th edition. www.itconferencesap.com
Interests & Background:
- Cloud-Native dev., CloudFoundry
- DevOps, Continuous Everything
- ABAP, BOPF, S/4HANA

https://people.sap.com/victor.ionescu

@ivictor88 ( <-- look here for slides )

ionescuv.github.io

#itconsapcj

Stay tuned for updates!

www.itconferencesap.com

Motivation

"create Order out of Chaos"

Sample architecture(XSA) on SAP Cloud Platform, Cloud Foundry

Test this!

Getting things to run

maven/npm

Environment

Security

Database

Downstream dependencies

Application Runtime

App Binaries

Networking

Platform services

There are many ways to get things done

"let's just disable security temporarily"

set JAVA_HOME=/jre1.8.0_121

...
doSomeLogic();
// commented out for testing
// callOtherSystem();
...

Snowflakes

Dev/Prod Parity

Test environment qualities

"Test-Environment-as-Code"

https://blogs.sap.com/2018/06/28/local-test-environment-as-code/

consistent
easy to set up
centrally managed

The Test Environment is your product
The development team is your customer

Test-Environment-as-Code

..now back to Cloud Foundry

open-source PaaS ("Linux of the Cloud")
handles building, deployment and monitoring of apps (Java, Node.JS and many more)
provides multiple services for the apps to use
hides complexities of underlying Infrastructure

Cloud Foundry Under the Hood

Containerization
- => Buildpacks
Services
- => Service brokers
- => Application environment
Network
- => Routes

Test Environment for SAP Cloud Platform, CF

Cloud Foundry space:

Test Environment:

Containerization
- => Buildpacks
Services
- => Service brokers
- => Application environment
Network
- => Routes

Docker

cf service-keys

mustache

cf-local

container networking

Cloud Foundry

Test Environment

"docker-composing" the puzzle

version: '3'
services:
  launchpad:
    build: ../src/launchpad
    container_name: launchpad
    ports:
     - "8080:8080"
    networks: 
     - NET1
    environment:
     - PORT=8080
     - VCAP_SERVICES={"portal-services":[{"binding_name":null,"credentials":{...
     - DESTINATIONS=[{"name":"app1","url":"http://spring-app1","forwardAuthToken":true},...
     - sapui5url=https://sapui5.hana.ondemand.com/1.56.10
  app1:
    build: ../src/app
    container_name: spring-app1
    networks: 
     - NET1
    environment:     
     - SPRING_PROFILES_ACTIVE=cloud
     - VCAP_APPLICATION={}
     - VCAP_SERVICES={"postgresql":[{..."host":"mypostgres"..
  postgres:
    image: "postgres"
    container_name: mypostgres
    networks: 
     - NET1        
    environment:
     - POSTGRES_USER=postgres
     - POSTGRES_PASSWORD=postgres

Demo Time

or DIY:

https://blogs.sap.com/2019/03/20/how-to-test-cloudfoundry-apps..outside-of-cloudfoundry/

https://github.com/ionescuv/sap-cp-cf-starter

https://people.sap.com/victor.ionescu

@ivictor88

ionescuv.github.io

Q&A