MicroPets

Overview

MicroPet is a MicroService Application that includes 4 components:

Dogs is a service managing dogs (Go)
Cats is a service managing cats (Go)
Fishes is a service managing fishes (Go)
Pets is a front ends service managing cats,dogs & fishes (Go)
Gui is a frontend of the wonderfull application (Angular)

All the services are built into a Docker Images All the service have deployed in a Kubernetes Cluster following the pattern:

Ingress <--> Service <--> Deployment <--> {ConfigMap,Secrets}

Note: All the procedure has tested only on Mac using

Docker For Mac
K3D / K3S
Helm
Traefik

Setup the infrastructure

New Docker Registry

Create a new Docker Registry locally using docker using registry.local as DNS name.

$./k3s/new-docker-registry.sh

Edit your local hostname config /etc/hosts

127.0.0.1 registry.local

Test the registry

docker pull containous/whoami
docker tag  containous/whoami registry.local:5000/containous/whoami:latest
docker push registry.local:5000/containous/whoami:latest

New K3S Cluster

Create new K3S cluster using the docker registry created previously. It deploys Helm & Traefik.

Edit k3s/Makefile and set the value for

CLUSTER_NAME

make create-cluster install-traefik CLUSTER_NAME=my-local-cluster

Test k3s configuration

Apply the following configuration

kubectl apply -f k3s/test-k3s-traefik-contif.yaml

and check with your browser you can connect to https://localhost:80/whoami/ or running

curl -k https://localhost:80/whoami/

Deployments

Deploy the Dev environment

kubectl apply -f k8s/resources-dev.yaml
kubectl delete -f k8s/resources-dev.yaml

Deploy

K8S_NS='default'
kubectl apply -f dogs/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f cats/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f fishes/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f pets/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f gui/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f pets-spring/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f pets-spring/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl apply -f pets-spring-cloud/config-server/k8s/resources-dev.yaml -n ${K8S_NS}

Check the output and the status of the resources to be sure everything is ok. It's implicit advice you have to follow after running any kubectl command. kubectl apply is an asynchronous command that returns 'OK' 90% of the time because it asks the Kubernetes Cluster to change the resources' state.

open the website

open http://gui.dev.pet-cluster.demo/ or http://k8s.mytanzu.xyz/gui/

Modify the frontend

edit gui/src/app/pets/pets.component.css and change one color
commit your code
run cd gui && make docker-build k8s-deploy

the Makefile handles :

the build of the Angular application
the build of the Docker Image,
the deployment into the Kubernetes Cluster

Deploy with kustomize

kubectl apply -k dogs/k8s kubectl apply -k cats/k8s kubectl apply -k fishes/k8s kubectl apply -k pets/k8s kubectl apply -k gui/k8s

Undeploy

K8S_NS='default'
kubectl delete -f dogs/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl delete -f cats/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl delete -f fishes/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl delete -f pets/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl delete -f gui/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl delete -f pets-spring/k8s/resources-dev.yaml -n ${K8S_NS}
kubectl delete -f pets-spring-cloud/config-server/k8s/resources-dev.yaml -n ${K8S_NS}

UnDeploy with customize

kubectl delete -k dogs/k8s kubectl delete -k cats/k8s kubectl delete -k fishes/k8s kubectl delete -k pets/k8s kubectl delete -k gui/k8s

Switch pets configuration

Switch between 2 services (dogs & cats) and 3 services (dogs, cats & fishes).

It uses the kustomize to generate the config map and to link it to the deployment.

cd pets
kubectl delete -k ./kustomize/overlays/2
kubectl apply -k ./kustomize/overlays/2
kubectl apply -k ./kustomize/overlays/3
kubectl apply -k ./kustomize/overlays/2

New environment : test

Target an existing namespace (test) and modify the Ingress resources to use test in it.

It uses the kustomize

to generate the config map,
to manage the namespace name,
to change the Ingress URL (from .dev.pet-cluster.demo to .test.pet-cluster.demo)

kubectl create ns test
kustomize build  kustomize/test | sed "s/DEV/TEST/g" | sed "s/pets.dev.pet-cluster.demo/pets.test.pet-cluster.demo/g" | kubectl apply -f -
open http://gui.test.pet-cluster.demo/
kustomize build  kustomize/test | kubectl delete -f -

Progressive deployment on Prod

Target an existing namespace (prod) and modify the Ingress resources to use prod in it.

kubectl create ns prod
kustomize build  kustomize/prod | sed "s/DEV/PRODUCTION/g" | sed "s/pets.dev.pet-cluster.demo/pets.prod.pet-cluster.demo/g" | kubectl apply -f -
# the pet application returns dogs & cats
open http://gui.prod.pet-cluster.demo
kubectl apply -f kustomize/prodfish/resources-dev-3.yaml -n prod
# the pet application returns dogs & cats & FISHES ==alternatively==
open http://gui.prod.pet-cluster.demo
kubectl delete -f kustomize/prodfish/resources-dev-2.yaml -n prod

# the pet application returns dogs & cats & FISHES
open http://gui.prod.pet-cluster.demo

kustomize build  kustomize/prod | kubectl delete -f -

Use a dedicated configuration to have the 2 versions of the pets implementation (one with fish, one without)

Canary Deployment using Traefik

kustomize build kustomize/canary | sed "s/DEV/CANARY/g" | sed "s/pets.dev.pet-cluster.demo/pets.canary.pet-cluster.demo/g" | kubectl apply -f -

open http://pets.canary.pet-cluster.demo/

Inject traffic using slow_cooker

./slow_cooker_darwin -qps 100 http://pets.canary.pet-cluster.demo/

After few minutes apply kustomize/canary/pets_activate_20_80.yaml to have V2 service (20%) and V3 service (80%) After few minutes apply kustomize/canary/pets_activate_00_100.yaml to have V3 service (100%)

if linkerd has been installed you can look at the Grafana Dashbord showing 1/5 of the requests to the pets service goes to v3 including the fishes.

linkerd dashboard &
linkerd -n canary stat deploy

Gitops with Flux

Ref https://toolkit.fluxcd.io/ export GITHUB_TOKEN= export GITHUB_USER=

flux bootstrap github
--owner=$GITHUB_USER
--repository=fleet-infra
--branch=main
--path=staging-cluster
--personal

this command creates or updates the fleet-infra personal private repository with a new path staging-cluster generating the flux configuration for this cluster. Then it applies them to the current cluster.

.
├── README.md
└── staging-cluster
    └── flux-system
        ├── gotk-components.yaml
        ├── gotk-sync.yaml
        └── kustomization.yaml

2 directories, 4 files

❯ kubectl get pods --namespace flux-system
NAME                                       READY   STATUS    RESTARTS   AGE
helm-controller-6765c95b47-nsmbz           1/1     Running   0          89s
notification-controller-694856fd64-jctjg   1/1     Running   0          89s
source-controller-5bdb7bdfc9-djxgs         1/1     Running   0          89s
kustomize-controller-7f5455cd78-jz6wc      1/1     Running   0          89s

Add the micropets-app project to be managed.

flux create source git webapp \
  --url=https://github.com/bmoussaud/micropets-app \
  --branch=master \
  --interval=30s \
  --export > ./staging-cluster/micropets-source.yaml

Add the cats projects

flux create kustomization cats \
  --source=webapp \
  --path="./cats/k8s" \
  --prune=true \
  --validation=client \
  --interval=1h \
  --export > ./staging-cluster/cats.yaml

Commit & push the 2 resources.

git add -A && git commit -m "add staging webapp" && git push

Check the cats services is now deployed on the dev namespace

❯ flux get kustomizations
NAME       	READY	MESSAGE                                                          	REVISION                                       	SUSPENDED
cats       	True 	Applied revision: master/5f3500cc01bb04c743d80c24162221125566168f	master/5f3500cc01bb04c743d80c24162221125566168f	False
flux-system	True 	Applied revision: main/f41fcc19c9a3c011b527e8d58feb78bf642badfd  	main/f41fcc19c9a3c011b527e8d58feb78bf642badfd  	False

Replicate the configuration for the following services: dogs,gui,pets

git add -A && git commit -m "add staging dogs,pets,gui" && git push
watch flux get kustomizations

Every 2,0s: flux get kustomizations                                                                          MacBook-Pro-de-Benoit.local:

NAME            READY   MESSAGE                                                                 REVISION                                        SUSPENDED
cats            True    Applied revision: master/5f3500cc01bb04c743d80c24162221125566168f       master/5f3500cc01bb04c743d80c24162221125566168f False
flux-system     True    Applied revision: main/5108bf3cf14826770c63ad28e13434841b40079e         main/5108bf3cf14826770c63ad28e13434841b40079e   False
dogs            True    Applied revision: master/5f3500cc01bb04c743d80c24162221125566168f       master/5f3500cc01bb04c743d80c24162221125566168f False
gui             True    Applied revision: master/5f3500cc01bb04c743d80c24162221125566168f       master/5f3500cc01bb04c743d80c24162221125566168f False
pets            True    Applied revision: master/5f3500cc01bb04c743d80c24162221125566168f       master/5f3500cc01bb04c743d80c24162221125566168f False

to force Flux to reconcile with repos

flux reconcile kustomization flux-system --with-source

The interval values in the kustomization resource creation tells fluxcd will check this interval to keep the configuration synchronized. In the command line we set 1h, but it's possible to lower this value to 60s.

Edit the cats.yaml file and set the new interval value

interval: 60s

commit and push the code
kill the cats deployment object.
wait for 60 secondes, it will come back.

Pets Spring

Pet-Spring is another implementation of the pets service using the Spring Cloud Framework. IPets has been implemented using the Go Language. It uses the custom config-server stored in pets-spring-cloud/config-server the configuration is stored in https://github.com/bmoussaud/sample_configuration

YTT (Katapult)

the ytt folder demoes the usage of ytt & kapp from the Carvel.dev project to generate the YAML definition of all the resources and apply them into a kubernetes namespace.

From the ytt folder, run:

make katapult generates the YAML K8S resource
make kapp generates the YAML K8S resource and run kapp.
make kdelete deletes the application

Tanzu Service Mesh

create 2 TKG clusters aws-front & aws-back with 3 worker nodes (m5.xlarge)

Onboard the clusters into TSM (3 steps)doc

apply generic configuration
define the secret

in the TSM UI, install the TSM components.

Assign dns name with the clusters (/etc/hosts or DNS)

front.mytanzy.xyz to work LB in front of the aws-front cluster
back.mytanzy.xyz to work LB in front of the aws-back cluster

Edit kustomize/aws/front/kustomization.yaml and select (uncomment) the 5 services

bases:
- ../../../cats/k8s
- ../../../dogs/k8s
- ../../../fishes/k8s
- ../../../gui/k8s
- ../../../pets/k8s

Edit kustomize/aws/front/pets_config.json and for each service, set "host": "servicename-service" ex "host": "cats-service" for cats.
from the root of the project, run make deploy-front
Smoke Tests

using curl curl http://front.mytanzu.xyz/pets
using the internet browser http://front.mytanzu.xyz/gui/

Using the TSM Console

Create a new Global Namespace
- GNS Name : micropets
- Domain: micropet.tanzu (put any name, it doesn't match with a real DNS name)
Select the service mapping
- Select the bmoussaud-front cluster and the micropet-test namespace
- Check the list of the deployed services
Public Service
- No Public Service
Health Checks
- No Public Service
Finish

Load few times the application using your browser http://front.mytanzu.xyz/gui/ then click on the Cluster to get the following diagram.

Deploy the backend services (cats,dogs,fished) in the aws-back cluster : Edit kustomize/aws/back/kustomization.yaml and select (uncomment) the 3 services

bases:
- ../../../cats/k8s
- ../../../dogs/k8s
- ../../../fishes/k8s

from the root of the project, run make deploy-back
Smoke Tests

using curl curl http://back.mytanzu.xyz/cats, curl http://back.mytanzu.xyz/dogs and curl http://back.mytanzu.xyz/fishes

Go into the TSM UI and check the status of the aws-back cluster

Now we'll add the aws-back cluster into the global namespace: Edit and modify the service mapping

After few access to both cluster the Global Namespace should look like this

Edit the kustomize/aws/front/pets_config.json to use Global Namespace Service Name: For each service append .micropet.tanzu

{
    "service": {
        "port": ":9000",
        "listen": "true"
    },
    "backends": [
        {
            "name": "cats",
            "host": "cats-service.micropet.tanzu",
            "port": "7002"
        },
        {
            "name": "dogs",
            "host": "dogs-service.micropet.tanzu",
            "port": "7003"
        },
        {
            "name": "pets",
            "host": "fishes-service.micropet.tanzu",
            "port": "7007"
        }
    ]
}

Note: Force the redeployment of the pod associated with the pets-service by killing it kubectl delete -n micropet-test pod pets-app-6f4ccf88c8-ks6r9

it's still working, the animal services are still available using this name !

$kubectl exec -n micropet-test pets-app-6f4ccf88c8-9xq9d -c pets -- curl -s http://cats-service.micropet.tanzu:7002
{"Total":2,"Hostname":"cats-app-7f4cfbb9d4-wlj7j","Pets":[{"Name":"Orphee","Kind":"Persan","Age":12,"URL":"https://www.pets4homes.co.uk/images/breeds/21/db349a9afb9b6973fa3b40f684a37bb9.jpg"},{"Name":"Pirouette","Kind":"Bengal","Age":1,"URL":"https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Paintedcats_Red_Star_standing.jpg/934px-Paintedcats_Red_Star_standing.jpg"}]}%

As the services can resolved locally, the link between Pets and the 3 others services remains local.

Shutdown the services on the aws-front cluster. Go to the root project and run make kill-front-services
inject trafic in the UI
Redeploy the per-animal services (cats,)

Tanzu Build Service / kPack

Set up the project to use Cloud Native Buildpack instead of managing Dockerfile to create the image

The project will use kPack. If you're looking for a supported version of kPack, please look at Tanzu Build Service by vmware

Install kPack into the cluster

kapp deploy --yes -a kpack \
	-f https://github.com/pivotal/kpack/releases/download/v0.3.1/release-0.3.1.yaml

Edit cluster/values.yaml

the cluster/kpack folder defines the cluster-scoped resources and the shared resources amongs the services

cd cluster
export MICROPETS_registry_password="moussaud"
export MICROPETS_into_ns="micropets-supplychain"
kubectl create  ns ${MICROPETS_into_ns}
ytt --ignore-unknown-comments --data-values-env  MICROPETS   -f . | kapp deploy --yes --into-ns ${MICROPETS_into_ns} -a micropet-kpack -f-

Check the builder is available (Ready=true)

$kubectl get ClusterBuilder micropet-builder
NAME               LATESTIMAGE                                                                                                           READY
micropet-builder   harbor.mytanzu.xyz/library/micropet-builder@sha256:dd1993c5a5550f7b91052330d11bb029bd2f108776dff5097e42e813988ae1b9   True

in each service project, the kpack.yaml file specify what to build (Image). Run make deploy-cnb to apply the definition using the current kubernetes context (at the root of the project or individually)

undeploy everything

kapp delete -a micropet-kpack kubectl delete ns ${MICROPETS_into_ns}

Deploy with kAPP

In each service directory, there is a k8s directory that holds the yaml file to deployed. The configuration is based on Kustomize There is another way to manage all these resources by grouping them into a bundle and to manage them using the same lifecycle. This solution is kapp provided by the https://carvel.dev/ project One of the main advantage is : kapp is synchronous. It means not only kapp apply the resources but also check if the expected resources have been created or deleted.

So in each directory, there is now a kapp directory and in the makefile 2 new targets: deploy-kapp & undeploy-kapp

ytt --ignore-unknown-comments  -f kapp | kapp deploy --yes --into-ns micropets-run -a micropet-cats-service -f-
Target cluster 'https://gimckc2x2x1ar31iv6sd8124v6od-k8s-312336063.eu-west-3.elb.amazonaws.com:443' (nodes: ip-10-0-1-199.eu-west-3.compute.internal, 3+)

Changes

Namespace      Name                                                                          Kind            Conds.  Age  Op      Op st.  Wait to    Rs  Ri
micropets-run  cats-app                                                                      Deployment      -       -    create  -       reconcile  -   -
^              cats-config-2d3463f83f108599307ca86cb45545c5cb7e89c0c9219e30bdd091bd065099e2  ConfigMap       -       -    create  -       reconcile  -   -
^              cats-db-credentials                                                           Secret          -       -    create  -       reconcile  -   -
^              cats-gateway                                                                  Gateway         -       -    create  -       reconcile  -   -
^              cats-ingress                                                                  Ingress         -       -    create  -       reconcile  -   -
^              cats-service                                                                  Service         -       -    create  -       reconcile  -   -
^              cats-virtual-service                                                          VirtualService  -       -    create  -       reconcile  -   -

Op:      7 create, 0 delete, 0 update, 0 noop
Wait to: 7 reconcile, 0 delete, 0 noop

10:45:41AM: ---- applying 2 changes [0/7 done] ----
10:45:41AM: create secret/cats-db-credentials (v1) namespace: micropets-run
10:45:41AM: create configmap/cats-config-2d3463f83f108599307ca86cb45545c5cb7e89c0c9219e30bdd091bd065099e2 (v1) namespace: micropets-run
10:45:41AM: ---- waiting on 2 changes [0/7 done] ----
10:45:41AM: ok: reconcile configmap/cats-config-2d3463f83f108599307ca86cb45545c5cb7e89c0c9219e30bdd091bd065099e2 (v1) namespace: micropets-run
10:45:41AM: ok: reconcile secret/cats-db-credentials (v1) namespace: micropets-run
10:45:41AM: ---- applying 5 changes [2/7 done] ----
10:45:41AM: create ingress/cats-ingress (extensions/v1beta1) namespace: micropets-run
10:45:41AM: create virtualservice/cats-virtual-service (networking.istio.io/v1alpha3) namespace: micropets-run
10:45:41AM: create gateway/cats-gateway (networking.istio.io/v1alpha3) namespace: micropets-run
10:45:41AM: create deployment/cats-app (apps/v1) namespace: micropets-run
10:45:41AM: create service/cats-service (v1) namespace: micropets-run
10:45:41AM: ---- waiting on 5 changes [2/7 done] ----
10:45:41AM: ok: reconcile virtualservice/cats-virtual-service (networking.istio.io/v1alpha3) namespace: micropets-run
10:45:41AM: ok: reconcile ingress/cats-ingress (extensions/v1beta1) namespace: micropets-run
10:45:41AM: ok: reconcile service/cats-service (v1) namespace: micropets-run
10:45:41AM: ok: reconcile gateway/cats-gateway (networking.istio.io/v1alpha3) namespace: micropets-run
10:45:41AM: ongoing: reconcile deployment/cats-app (apps/v1) namespace: micropets-run
10:45:41AM:  ^ Waiting for generation 2 to be observed
10:45:41AM:  L ok: waiting on replicaset/cats-app-5ffd8646bb (apps/v1) namespace: micropets-run
10:45:41AM:  L ongoing: waiting on pod/cats-app-5ffd8646bb-6wtt7 (v1) namespace: micropets-run
10:45:41AM:     ^ Pending
10:45:41AM: ---- waiting on 1 changes [6/7 done] ----
10:45:42AM: ongoing: reconcile deployment/cats-app (apps/v1) namespace: micropets-run
10:45:42AM:  ^ Waiting for 1 unavailable replicas
10:45:42AM:  L ok: waiting on replicaset/cats-app-5ffd8646bb (apps/v1) namespace: micropets-run
10:45:42AM:  L ongoing: waiting on pod/cats-app-5ffd8646bb-6wtt7 (v1) namespace: micropets-run
10:45:42AM:     ^ Pending: ContainerCreating
10:45:44AM: ongoing: reconcile deployment/cats-app (apps/v1) namespace: micropets-run
10:45:44AM:  ^ Waiting for 1 unavailable replicas
10:45:44AM:  L ok: waiting on replicaset/cats-app-5ffd8646bb (apps/v1) namespace: micropets-run
10:45:44AM:  L ongoing: waiting on pod/cats-app-5ffd8646bb-6wtt7 (v1) namespace: micropets-run
10:45:44AM:     ^ Condition Ready is not True (False)
10:45:49AM: ok: reconcile deployment/cats-app (apps/v1) namespace: micropets-run
10:45:49AM: ---- applying complete [7/7 done] ----
10:45:49AM: ---- waiting complete [7/7 done] ----

Succeeded

It exists also a server side implementation called kapp-controller

Install kapp-controler

# THIS CLUSTERROLEBINDING IS FOR DEMO PURPOSES ONLY - THIS WILL GRANT MORE PERMISSIONS THAN NECESSARY
#
kubectl create clusterrolebinding default-admin \
  --clusterrole=cluster-admin \
  --serviceaccount=default:default

kubectl create clusterrolebinding micropets-supplychain-default-admin --clusterrole=cluster-admin --serviceaccount=micropets-supplychain:default

kapp deploy --yes -a kapp-controller \
	-f https://github.com/vmware-tanzu/carvel-kapp-controller/releases/download/v0.25.0/release.yml

The description of the application follows this specification: https://carvel.dev/kapp-controller/docs/latest/app-spec/

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: sample-dogs-configuration       
data:
  values.yml: |  
    service:  
      name: dogs
      mode: RANDOM_NUMBER
      port: 7003
      replicas: 1
      version: latest
      virtual_host: front.mytanzu.xyz
    registry:
      server: harbor.mytanzu.xyz/library
---
apiVersion: kappctrl.k14s.io/v1alpha1
kind: App
metadata:
  name: sample-dogs 
spec:
  serviceAccountName: default  
  fetch:
    - git:
        url: https://github.com/bmoussaud/micropets-app
        ref: master
        subPath: cluster/tap/app-operator/kapp
  template:
    - ytt:
        ignoreUnknownComments: true
        valuesFrom:
          - configMapRef:
              name: sample-dogs-configuration      
  deploy:
    - kapp:
        intoNs: another-ns1

$kubectl apply -f kapp-sample.yaml

Tanzu Application Platorm

moved to https://github.com/bmoussaud/micropets-app-operator

Name		Name	Last commit message	Last commit date
Latest commit History 467 Commits
.vscode		.vscode
birds		birds
catalog		catalog
cats		cats
dogs		dogs
fishes		fishes
gui		gui
img		img
k3s		k3s
kapp		kapp
kind		kind
kustomize		kustomize
pets-py		pets-py
pets-spring-cloud		pets-spring-cloud
pets-spring		pets-spring
pets		pets
shared/config		shared/config
tryytt		tryytt
vegeta		vegeta
ytt		ytt
.gitignore		.gitignore
.sourceignore		.sourceignore
.tanzuignore		.tanzuignore
HorizontalPodAutoscaler.yaml		HorizontalPodAutoscaler.yaml
Makefile		Makefile
README.md		README.md
apply_all.sh		apply_all.sh
catalog-info.yaml		catalog-info.yaml
delete_all.sh		delete_all.sh
deploy_all.sh		deploy_all.sh
micropets-app.code-workspace		micropets-app.code-workspace
mkdocs.yml		mkdocs.yml
undeploy_all.sh		undeploy_all.sh
xlw		xlw
xlw.bat		xlw.bat

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Repository files navigation

MicroPets

Overview

Setup the infrastructure

New Docker Registry

Test the registry

New K3S Cluster

Test k3s configuration

Deployments

Deploy the Dev environment

Deploy

Modify the frontend

Deploy with kustomize

Undeploy

UnDeploy with customize

Switch pets configuration

New environment : test

Progressive deployment on Prod

Canary Deployment using Traefik

Gitops with Flux

Pets Spring

YTT (Katapult)

Tanzu Service Mesh

Tanzu Build Service / kPack

Deploy with kAPP

Tanzu Application Platorm

References

About

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Packages

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bmoussaud/micropets-app

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Repository files navigation

MicroPets

Overview

Setup the infrastructure

New Docker Registry

Test the registry

New K3S Cluster

Test k3s configuration

Deployments

Deploy the Dev environment

Deploy

Modify the frontend

Deploy with kustomize

Undeploy

UnDeploy with customize

Switch pets configuration

New environment : test

Progressive deployment on Prod

Canary Deployment using Traefik

Gitops with Flux

Pets Spring

YTT (Katapult)

Tanzu Service Mesh

Tanzu Build Service / kPack

Deploy with kAPP

Tanzu Application Platorm

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