Hello there friends! I have recently switched from using docker desktop to Rancher. I'm having an issue where my container that previously could connect to an external web API can no longer do so with Rancher. Does anyone have any idea what the differences could be here?

so may need a bit more info like win/mac/linux, but my gut is that you may need a proxy? you can also test basic network connectivity by jumping into

rdctl shell

and making sure basic

curl

operations work. in case there is a vpn, dns tunnelling, or other environmental item you need to figure out

Hello. I am on Mac. After running bash in the container I can confirm that it has no network connectivity. Just some basic checking the /etc/hosts files are the exact same on them but the /etc/resolv.conf are a tad different. The one that isn't working contains a search site entry and their nameserver IPs are different.

so yeah seems like limavm may be having an issue moving traffic from the vm to the host. any security tooling in scope?

What do you mean by security tooling in scope?

vpn, firewall, av, etc. anything that might break the network bridging or cause packets to be lost

I am on a VPN and we have crowdstrike installed. But that's the case with both Docker Desktop and Rancher. They are both on my system that has both of tools. The rancher one can't reach anything including Google where the DD has no issues with any sites.

dd doesn't use limavm

Okay I will take a look at those. What kind of network info are you thinking? I obviously don't want to be posting my IPs out on the internet.

Should just be a block device to the container. Will perform differently, but should still work. Emphasis on the should as there are always corner cases.

Yeah I don't know. This is driving me nuts.