Kubernetes Ingress controller for FortiWeb

Instructions

Install Docker in Docker

Use this repo: https://github.com/kubernetes-sigs/kubeadm-dind-cluster
wget https://cdn.rawgit.com/kubernetes-sigs/kubeadm-dind-cluster/master/fixed/dind-cluster-v1.8.sh
chmod +x dind-cluster-v1.8.sh
./dind-cluster-v1.8.sh up

External connectivity to port apiserver in port 8001

sudo sysctl -w net.ipv4.conf.ens160.route_localnet=1
sudo iptables -t nat -I PREROUTING -p tcp --dport 8001 -j DNAT --to-destination 127.0.0.1:8080

Dashboard

Access this url:

http://ip:8080/api/v1/namespaces/kube-system/services/kubernetes-dashboard:/proxy/#!/deployment?namespace=default

Deploy a service and expose it

kubectl run forum-webserver --image=gcr.io/google-samples/kubernetes-bootcamp:v1 --port=8080 -r=1
kubectl run image-webserver --image=docker.io/tutum/hello-world --port=80 -r=1
kubectl run fwb-docker --image=docker.io/fortiweb/v601:0029 -r=1

kubectl expose deployment/forum-webserver --type="NodePort" --port 8080 --selector='run=forum-webserver'
kubectl expose deployment/image-webserver --type="NodePort" --port 80 --selector='run=image-webserver'

For NodePort we need to create a file since CLI does not offer so many options:

cat >NodePortSpec.yml<<EOF
apiVersion: v1
kind: Service
metadata:
  name: fwb-service-mgmt
spec:
  type: NodePort
  ports:
  - port: 8080
    targetPort: 8
    nodePort: 32200
    protocol: TCP 
  selector:
    run: fwb-docker
EOF

kubectl apply -f NodePortSpec.yml

Check Services and Pods

kubectl get services
kubectl get pods
kubectl get services/forum-webserver -o go-template='{{(index .spec.ports 0).nodePort}}'

Deploy FortiWeb

Please use: https://github.com/fortinet-solutions-cse/testbeds

Use fortinet-solutions-cse/testbeds/fortiweb

wget https://raw.githubusercontent.com/fortinet-solutions-cse/testbeds/master/fortiweb/start_fwb_k8s.sh
chmod +x ./start_fwb_k8s.sh
./start_fwb_k8s.sh <fortiweb_kvm_qcow2_image>

Change http port in FortiWeb to other than 80

Change the setting in System/Admin/Settings/HTTP

Create an ingress resource in K8S

kubectl apply -f ingress_example_demo.yaml
kubectl get ingress
kubectl describe ingress

Access pods

kubectl get pods
kubectl exec -it forum-webserver-d4f956cbc-v88lz bash

Execute requests to fetch data from different services

wget --header "Host:foo.com" -O - http://192.168.122.40/path1
wget --header "Host:foo.com" -O - http://192.168.122.40/path2
wget --header "Host:bar.com" -O - http://192.168.122.40/path3
wget --header "Host:bar.com" -O - http://192.168.122.40/path1