k8s-e2e-example

Assuption:-

1. To install kubernetes & Jenkins on GCP instances and deploy service on top it there should be ingress and egress firewalls allowed for required ports.

2. A running elastic search cluster and kibana server.

Install Jenkins on GCP instances using Ansible

1. ansible-playbook -i jenkins/hosts.ini jenkins/playbook.yml

Install Kubernetes v1.11.3 on GCP instances using kubespray

1. cd kubespray

2. # Install dependencies from ``requirements.txt`
    pip install -r requirements.txt

3. Add internal and external IP address of GCP instances into inventory file at inventory/k8s-cluster1/hosts.ini

4. Specify the master,worker,etcd nodes at:-  ./inventory/k8s-cluster1/hosts.ini

5. # Deploy Kubespray with Ansible Playbook
    ansible-playbook -i inventory/k8s-cluster1/hosts.ini cluster.yml

Get Kube config file into host machine

To run kubectl command on the host machine you will need the kube context on system. Copy the config file at /root/.kube/.

Create CLuster role binding for service account kubernetes-dashboard

1. kubectl apply -f ./k8s-dashboard/

Install helm client and tiller server

1. Run below shell script to install helm client:-
   sudo ./helm/install.sh
2. Create service account tiller:-
   kubectl apply -f ./helm/serviceAccount.yaml
3. Create tiller:-
   helm init --service-account=tiller

Install FluentD using helm

1. Specify hostname,port,username & password of elastic search cluster in ./helm/fluentd/values.yaml

2. Install fluentd:-
helm install ./helm-fluentD/ --name fluentd -f ./helm-fluentD/values.yaml

Install Istio:1.0.5 using helm

1. Install Istio:-
helm install ./helm-istio/ --name istio --namespace istio-system -f ./helm-istio/values.yaml

Create ingress gateway

1. kubectl apply -f ./istio-component/http-gateway.yaml

Install monitoring tools :- Prometheus , Grafana , Alertmanger using prometheus-operator

1.Create Namespace
    kubectl create -f ./monitoring/namespace/

2.Create crd's
    kubectl create -f ./monitoring/crds/

3.Install Components
    kubectl create -f ./monitoring/

Install GuestBook application with canary version

1. Deploy Artifects:-
   kubectl create namespace development
   kubectl create -f ./guestbook/all-in-one/guestbook-all-in-one.yaml -n development

2. Deploy Istio virtualservice and destinationrule:-
   kubectl create -f ./guestbook/istio/
   
3. Deploy Canary Artifects:-
   kubectl create -f ./guestbook/canary/ -n development