michaellihs

Concepts

Journey Map

User journey map is a visualization of an individual’s relationships with a product/brand over time and across different channels.

• commonly it’s represented as a timeline of all touch points between a user and a product
• timeline contains information about all channels that users use to interact with a product
• visualizes how a user interacts with a product and allows designers to see a product from a user’s point of view

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Consumer Driven Contracts - a curated list

Blog Posts

• Martin Fowler: "Consumer-Driven Contracts: A Service Evolution Pattern" (2006)
• Novatec: "Consumer Driven Contracts with Spring Cloud Contract" (2017)
• Novatec: "Introduction to Microservices Testing and Consumer Driven Contract Testing with PACT" (2017)

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Kubernetes Cheat Sheet

Colima

Colima and kubectl

How to get the K8S credentials

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Google Cloud Platform Fundamentals

Regions & Zones

• Region equals a geograpic location
• Zones divide regions into (physically) independent isolated sub parts
• Some resources are
• accessible only within one zone (e.g. VMs)

michaellihs

Jenkins is dead - long live Jenkins!

Brainstorming

• Basic Concepts
  • Continuous Delivery

    Delivering Software with confidence, small increments, frequent releases, requires automated tested, automated deployment, automated infrastructure

• Pipelines

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Jenkins Logs in ElasticSearch

• http://lifuzu.com/blog/2016/03/21/feeding-build-logs-into-elasticsearch-with-logstash-on-jenkins/

• Docker image for Jenkins: https://hub.docker.com/_/jenkins/

  docker run -p 8080:8080 -p 50000:50000 jenkins

Check for Jenkins on http://localhost:8080

michaellihs

enum PatchLevel {
    MAJOR, MINOR, PATCH
}

class SemVer implements Serializable {

    private int major, minor, patch

    SemVer(String version) {
        def versionParts = version.tokenize('.')

michaellihs

Maven Cheat Sheet

My collection of useful hints and snippets for Apache Maven.

POM - Project Object Model

See http://maven.apache.org/pom.html

michaellihs

DevOps Days Kiel: Message Queues as an Integration Approach for Micro Services

Micro Services seem to be a trendy topic in software development nowadays and often they go hand in hand with message queues as an integration approach. So the question arises, whether message queues become the replacement for relational databases as an integration scenario and whether it is a better approach or not.

So here are some questions:

Are you using message queues in your (micro service) projects?

• Yes, for emails --> RabbitMQ, 10,000 requests / seconds

michaellihs

Spring Boot Testing

Using Configuration in Tests

The following snippets loads the application context with the configuration given in TestConfiguration.class

@RunWith(SpringRunner.class)