Access Internet from Instance

[darinkes]

It seems you cannot access anything from an launches Instance.
Couldn't find out whats the root cause of this.
I can see the packets arrive on the tap device, but thats it.

[pengale]

I can reproduce this issue on my Openstack install, both on bare metal and inside a kvm.

It's probably just a config issue with the networking. I'm investigating that now ...

[pengale]

The solution here is probably to setup SNAT for the virtual interfaces that we create. We'll work on adding some automagic for this in a future release. In the meantime, the existing documentation on setting up NATs for Openstack should get you pointed in the right direction: https://docs.openstack.org/mitaka/networking-guide/intro-nat.html

[pengale]

We're moving bug tracking for Microstack from github to launchpad. Here's a link to the new bug that I created to track the issue: https://bugs.launchpad.net/microstack/+bug/1812415

Please feel free to comment there if anything needs clarifying!

[karamolegkos]

Hello guys, i am using microstack and i found out that if you are using ubuntu, then you can use the below commands to give internet access to your virtual machines inside your clouds

(using the default example used in this link https://ubuntu.com/openstack/install).

sudo iptables -t nat -A POSTROUTING -s 10.20.20.1/24 ! -d 10.20.20.1/24 -j MASQUERADE
sudo sysctl net.ipv4.ip_forward=1

The commands above must be run everytime we reboot the host machine for the microstack to give internet again to our instances.

I hope i helped somehow :).

[pengale]

@karamolegkos thank you for the comment, with the fix!

That is indeed the “right” thing to do in order to get networking working. I think that the microstack team is still figuring out how to make that work inside of a confined snap, which is why microstack doesn’t run the command for you.

[chsasank]

Tried these fixes and from this SO answer too: https://stackoverflow.com/questions/64320242/microstack-my-vms-cannot-access-the-internet

Still no internet :(

My installaton commands:
https://github.com/chsasank/chsasank.github.io/blob/master/_drafts/microstack-openstack.md