Simple OpenVPN client-server setup providing inter-datacenter connectivity.
Please set environment variables in the settings file accordingly before running scripts.
Example network schema :
+---------------------------------+ +----------------------------------+
| DC 1 | | DC 2 |
+---------------------------------+ +----------------------------------+
| |
| +--------------------------------+ | +-------------------------------+
|--| 10.0.0.0/24 NETWORK | |--| 10.0.1.0/24 NETWORK |
+--------------------------------+ +-------------------------------+
| |
| +--------------------------------+ | +-------------------------------+
| |Default GW (Router) | | |Default GW (Router) |
| |interfaces: | | |interfaces: |
|--| eth0: 10.0.0.1/24 | |--| eth0: 10.0.1.1/24 |
| |routes: | | |routes: |
| | 0.0.0.0/0 -> x.x.x.x(eth0) | | | 0.0.0.0/0 -> x.x.x.x(eth0) |
| | 10.0.1.0/24 -> 10.0.0.3(eth0)| | | 10.0.0.0/24 -> 10.0.1.3(eth0)|
| +--------------------------------+ | +-------------------------------+
| |
| +--------------------------------+ | +-------------------------------+
| |OpenVPN Server (VM) | | |OpenVPN Client (VM) |
| |interfaces: | | |interfaces: |
| | tun0: 10.8.0.1/32 |============| tun0: 10.8.0.2/32 |
|--| eth0: 10.0.0.3/24 | |--| eth0: 10.0.1.3/24 |
| |routes: | | |routes: |
| | 0.0.0.0/0 -> 10.0.0.1(eth0) | | | 0.0.0.0/0 -> 10.0.1.1(eth0) |
| | 10.8.0.2/32 -> 0.0.0.0(tun0) | | | 10.8.0.1/32 -> 0.0.0.0(tun0) |
| | 10.0.0.0/24 -> 0.0.0.0(eth0) | | | 10.0.1.0/24 -> 0.0.0.0(eth0) |
| | 10.0.1.0/24 -> 10.8.0.2(tun0)| | | 10.0.0.0/24 -> 10.8.0.1(tun0)|
| +--------------------------------+ | +-------------------------------+
| |
| +--------------------------------+ | +-------------------------------+
| |VM 1 | | |VM 2 |
| |interfaces: | | |interfaces: |
|--| eth0: 10.0.0.8/24 | |--| eth0: 10.0.1.7/24 |
|routes: | |routes: |
| 0.0.0.0/0 -> 10.0.0.1(eth0) | | 0.0.0.0/24 -> 10.0.1.1(eth0) |
| 10.0.0.0/24 -> 0.0.0.0(eth0) | | 10.0.1.0/24 -> 0.0.0.0(eth0) |
+--------------------------------+ +-------------------------------+
More information on multi-region InterDC Heat orchestration templates can be found here.
This work was made possible by the KTI ACEN project in collaboration with Citrix and Exoscale.
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