Created
April 20, 2020 21:10
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This deployment uses https://hub.docker.com/r/hanyifeng/alpine-ikev2-vpn container to deploy an IPsec server with strongswan on kubernetes and openshift.
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apiVersion: apps/v1 | |
kind: StatefulSet | |
metadata: | |
name: vpn | |
spec: | |
selector: | |
matchLabels: | |
app: vpn | |
serviceName: vpn | |
replicas: 1 | |
template: | |
metadata: | |
labels: | |
app: vpn | |
spec: | |
containers: | |
- name: vpn | |
image: hanyifeng/alpine-ikev2-vpn | |
imagePullPolicy: Always | |
env: | |
- name: VPNUSER | |
value: vpn-user | |
- name: VPNPASS | |
value: please_change_me | |
- name: HOST_IP | |
valueFrom: | |
fieldRef: | |
fieldPath: status.hostIP | |
securityContext: | |
privileged: true <---- Its required to access kernel features due IPsec | |
ports: | |
- containerPort: 500 | |
#hostPort: 500 <--- You can enable hostPort but its not a good practice | |
name: vpn-isakmp | |
protocol: UDP | |
- containerPort: 4500 | |
#hostPort: <--- You can enable hostPort but its not a good practice | |
name: vpn-ike | |
protocol: UDP | |
volumeMounts: | |
- mountPath: /lib/modules | |
name: modules | |
volumes: | |
- name: modules | |
hostPath: | |
path: /lib/modules | |
--- | |
# You will have to setup node ports 30500 and 30501 at your client | |
# Or use something like nginx with streams enabled: | |
# to forward udp traffic to port 500 and 4500 | |
# https://nginx.org/en/docs/stream/ngx_stream_core_module.html | |
# Rememer that nginx does not supports domain based reverse proxy. | |
kind: Service | |
apiVersion: v1 | |
metadata: | |
name: vpn | |
spec: | |
selector: | |
app: vpn | |
type: NodePort | |
ports: | |
- name: vpn-isakmp | |
port: 500 | |
targetPort: vpn-isakmp | |
protocol: UDP | |
nodePort: 30500 | |
- name: vpn-ike | |
port: 4500 | |
targetPort: vpn-ike | |
protocol: UDP | |
nodePort: 30501 |
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I use the android strongswan client and it has an option for "server port", my experience of using other clients such as windows is you will need to expose standard ports to the public gateway. what client/OS are you initiating the tunnel