Exercise 1

How to create the Tekton pipeline

Name:

proxy-pipeline

Parameters:

Name	Description	Default value
github-repository	GitHub URL Repository	<copy the value from your github repository>
registry	Container Registry	image-registry.openshift-image-registry.svc:5000
image-name	Proxy Image Name	proxy-backend
kustomize-folder	Kustomize Folder	./k8s/base

Workspaces:

source-code

Tasks:

1 - git-clone

Property Name	Property Value
display name	git-clone
url	$(params.github-repository)
workspace (output)	source-code

2 - maven

Property Name	Property Value
display name	maven
goals	package
context_dir	.
workspace (source)	source-code
workspace (maven-settings)	source-code

3 - buildah

Property Name	Property Value
display name	buildah
image	$(params.registry)/$(context.pipelineRun.namespace)/$(params.image-name)
dockerfile	./Dockerfile
context	.
workspace (source)	source-code

4 - kustomize

Property Name	Property Value
display name	kustomize
base-folder-path	$(params.kustomize-folder)
image-with-tag	$(params.registry)/$(context.pipelineRun.namespace)/$(params.image-name)
image-digest	$(tasks.buildah.results.IMAGE_DIGEST)
workspace (source)	source-code

5 - openshift-client

Property Name	Property Value
display name	openshift-client
script	oc apply -f $(tasks.kustomize.results.manifests)
version	latest
workspace (manifest-dir)	source-code

Exercise 2

How to deal with the mesh and deploy again your backend

• Create a project called < your project >-mesh
• Inside that project, create an instance of a service mesh
• Add your project to the mesh
• Annotate your deployments with the following

annotations:
  sidecar.istio.io/inject: "true"

• Create the gateway in your project

apiVersion: networking.istio.io/v1beta1
kind: Gateway
metadata:
  name: gw
  namespace: < your project >
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"

• Create the following resources in your project

kind: VirtualService
apiVersion: networking.istio.io/v1alpha3
metadata:
name: techgym-frontend-vsvc
namespace: < your project >
spec:
hosts:
  - >-
    < route associated to the previous gateway >
gateways:
  - gw
http:
  - route:
      - destination:
          host: techgym-frontend
          port:
            number: 8080
---
kind: VirtualService
apiVersion: networking.istio.io/v1alpha3
metadata:
name: techgym-backend-vsvc
namespace: < your project >
spec:
hosts:
  - techgym-backend
gateways:
  - gw
http:
  - route:
      - destination:
          host: techgym-backend
          port:
            number: 8080
          subset: v2
        weight: 50
      - destination:
          host: techgym-backend
          port:
            number: 8080
          subset: v1
        weight: 50
---
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
name: techgym-backend-dr
namespace: < your project >
spec:
host: techgym-backend
subsets:
  - labels:
      version: v2
    name: v2
  - labels:
      version: v1
    name: v1

• Make a commit to this file, in order to update v1 to v2