A runing IKEv2 VPN's container on alpine linux system

Overview

Let the IKEv2 vpn service run in the Docker container, do not need too much configuration, you just take the mirror on the Docker server, then run a container, the container generated certificate copy installed on your client, you can connect vpn The server. Welcome everyone's discussion！:blush:

Features

based on alpine image and Using supervisor to protect the IPSec process
StrongSwan provides ikev2 VPN service
In addition to Android and Linux, but other devices(Winodws 7+,Mac,iOS) by default comes with IKEv2 dial clients
When the container is run, the certificate file is dynamically generated based on the environment variable (last version)
Combined with Freeradius achieve Authentication, authorization, and accounting (AAA) (Done -> v0.1)

Prerequisites

The host can use physical machines, virtual machines, and VPS.
The host machines and containers must be opened within ip_forward （net.ipv4.ip_forward）
The host machines Install Docker engine.
Support eap authentication radius server(EAP-RADIUS)

Usage examples

Install using the convenience script `recommended approach`

As follows

# ./onekey_run_vpnserver.sh 'new_vpnuser' 'new_password'

**$1: vpn user
**$2: vpn password

Follow steps to install step by step

Clone git

# git clone https://github.com/elvizlai/alpine-ikev2-vpn.git

Or use docker pull to download images to the local

# docker pull sdrzlyz/ikev2

Then run docker run command.

Using docker build can create an automated build image,Then use the following command to run

# cd alpine-ikev2-vpn/
# docker build -t sdrzlyz/ikev2 .

eap-mschapv2 mode

# docker run --restart=always -itd --privileged -v /lib/modules:/lib/modules -e HOST_IP='Your's Public network IP' -e VPNUSER=jack -e VPNPASS="jack&opsAdmin" -p 500:500/udp -p 4500:4500/udp --name=ikev2 sdrzlyz/ikev2

**HOST_IP :Public network must be your host IP**
**[$VPNUSER] & [$VPNPASS] env Optional,The function is to customize the user name and password to connect to the VPN service.**
**Defalut vpnuser is testUserOne,passwd is testOnePass**

eap-radius mode

# docker run -itd --privileged -v /lib/modules:/lib/modules -e HOST_IP='Your's Public network IP' -e ACCOUNTING='yes' -e RADIUS_PORT='1812' -e RADIUS_SERVER='Your's radius server IP' -e RADIUS_SECRET='xxxxxxx' -e EAP_TYPE='eap-radius' -p 500:500/udp -p 4500:4500/udp --name=ikev2 sdrzlyz/ikev2

**ACCOUNTING: eap-radius mode Required.Value must be 'yes'
**RADIUS_PORT: radius server running port. Required.
**RADIUS_SERVER: radius server ip. Required.
**RADIUS_SECRET: radius nas client psk. Required.
**EAP_TYPE: ikev2 auth mode. Required.

eap-radius mode with self hosted certificate

# DOMAIN="you-domain.xyz"
# RADIUS_SERVER="redius-server-adderss"
# RADIUS_SECRET="you-secret"
# docker run -td \
    --name=ikev2 \
    --restart always \
    --privileged \
    --sysctl net.core.somaxconn=1024 \
    -v /lib/modules:/lib/modules \
    -v /opt/acme/$DOMAIN:/data/key_files:ro \
    -e HOST_IP="$DOMAIN" \
    -e ACCOUNTING=yes \
    -e EAP_TYPE=eap-radius \
    -e RADIUS_SERVER="$RADIUS_SERVER" \
    -e RADIUS_PORT=1812 \
    -e RADIUS_SECRET="$RADIUS_SECRET" \
    -p 500:500/udp -p 4500:4500/udp \
    sdrzlyz/ikev2

Use the following command to generate the certificate and view the certificate contents

# docker exec -it ikev2 sh /usr/bin/vpn
net.ipv4.ip_forward = 1
ipsec: stopped
ipsec: started
Below the horizontal line is the content of the certificate. Copy the content to a file in the .cert suffix format. Such as: vpn.cert
______________________________________________________________
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Copy this certificate to the remote client and name it xxx.cert or xxx.cert（Note：Windows need to modify the suffix pem for cer can be installed） example:
Connect vpn it！ Open the network settings, create a new IKEv2 protocol VPN, enter the default VPN account and password, or use the custom user that starts the container to connect to VPN. Create new VPN method is not described here ^_^.

Other Tips

If you want to add VPN users, you can run the following command to enter the container and edit the ipsec.secrets file.

# docker exec -it ikev2-vpn bash
bash-4.3# vi /usr/local/etc/ipsec.secrets

**Pattern: testUserOne %any : EAP "testOnePass" **

bash-4.3# ipsec rereadsecrets

Plan list

Dynamically generated based on the environment variable （Completed）
Support one-click installation (Completed)
AAA Integrate Radius provides centralized Authentication, Authorization, and Accounting (Completed)
Clients can connect without having to install a certificate
Support for adding and deleting user functions

Currently supported client device

Only test for the following client device system，You can test on the other system versions and feedback ！
Mac: 10.11.4
iOS: 10.2
Windows: 10
Centos: 6.8
Android：(Download strongSwan APK)

Authors

Name: aliasmee

Licensing

This project is licensed under the GNU General Public License - see the LICENSE.md file for details

Acknowledgments

https://www.strongswan.org/

elvizlai/alpine-ikev2-vpn