Cloud Native Night June 2016, Munich: Talk by Mario-Leander Reimer (@LeanderReimer, Principal Software Architect at QAware). Join our Meetup: www.meetup.com/cloud-native-muc Abstract: This talk is on building cloud native applications using Spring Boot and Netflix OSS components running with Kubernetes.

1. Hands-on K8s: Deployments, Pods and Fun
M.-Leander Reimer (@LeanderReimer)

2. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
THE ZWITSCHER SHOWCASE APPLICATION
KUBERNETES

3. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
RUN KUBERNETES ON LOCAL MACHINE OR ON TURN-KEY CLOUD SOLUTIONS
export KUBERNETES_PROVIDER=vagrant
export NUM_NODES=1
curl -sS https://get.k8s.io | bash
export KUBERNETES_PROVIDER=aws
export KUBE_AWS_ZONE=eu-central-1a
export NODE_SIZE=t2.small
curl -sS https://get.k8s.io | bash
export KUBE_GCE_ZONE=europe-west1-d
export NUM_NODES=4
curl -sS https://get.k8s.io | bash

4. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
DOCKERIZE IT
ZWITSCHER-BOARD
ZWITSCHER-CONFIG
ZWITSCHER-EDGE
ZWITSCHER-EUREKA
ZWITSCHER-MONITOR
ZWITSCHER-SERVICE
DEBIAN8-JRE8
DEBIAN:8

5. POD DeploymentPOD Deployment
POD Deployment
HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
KUBERNETIZE IT
ZWITSCHER-BOARD
ZWITSCHER-CONFIG
ZWITSCHER-EDGE
ZWITSCHER-EUREKA
ZWITSCHER-MONITORZWITSCHER-SERVICE
POD Deployment POD Deployment POD Deployment
SERVICE SERVICE SERVICE
SERVICE SERVICE
SERVICE

6. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
K8S DEPLOYMENT DESCRIPTOR EXAMPLE
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: zwitscher-service
spec:
replicas: 1
template:
metadata:
labels:
zwitscher: service
spec:
containers:
- name: zwitscher-service
image: "qaware-oss-docker-registry.bintray.io/zwitscher/zwitscher-service"
resources:
requests:
memory: "256Mi"
cpu: "250m"
limits:
memory: "512Mi"
cpu: "500m"
ports:
- containerPort: 8080
livenessProbe:
httpGet:
path: /admin/health
port: 8080
initialDelaySeconds: 90
timeoutSeconds: 5
env:
- name: EUREKA_HOST
value: zwitscher-eureka
1 Docker Container
Health Checks
Resource Limits

7. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
K8S SERVICE DESCRIPTOR EXAMPLE
apiVersion: v1
kind: Service
metadata:
name: zwitscher-service
labels:
zwitscher: service
spec:
# if your cluster supports it, uncomment the following to automatically create
# an external load-balanced IP for the frontend service. Do not use locally.
# type: LoadBalancer
# sessionAffinity: ClientIP
ports:
- port: 8080
selector:
zwitscher: service

8. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
REMOTE CONTROL KUBERNETES USING A NOVATION LAUNCHPAD
Kubernetes Deployment
Running Pods
Selected Deployment
Up/Down & Scale
Click to Start/Stop

9. DEMO TIME

10. HANDS-ON K8S: DEPLOYMENTS, PODS AND FUN
ALTERNATIVE: ZWITSCHERN WITH NATIVE K8S INFRASTRUCTURE
ZWITSCHER-BOARD
EDGE-SERVER: SERVICES & INGRES
ZWITSCHER-MONITORZWITSCHER-SERVICE
POD Deployment POD Deployment POD Deployment
SERVICE SERVICE SERVICE
CONFIGURATION & COORDINATION: ETCDDISCOVERY: DNS

11. https://slideshare.net/qaware
https://github.com/qaware/cloud-native-zwitscher
https://github.com/qaware/kubepad