How to upgrade docker for azure when change the subnet of the original template?

General
1

I’ve installed docker for azure 1.07.0 CE and I’ve changed the sub net for 12.0.0.0 which is suitable with my infrastructure. However, when I want to upgrade to 1.07.01 CE with the instruction shown in https://docs.docker.com/docker-for-azure/upgrade/#upgrading. It is failed with writing the new networking configuration error shown in the azure portal console.

The question is how can I upgrade the docker for azure with custom network configuration?

Thank you so much.

2

@torsakch … 1.07 sounds like a pretty old version from a period of time when Docker4Azure was still in Beta. Can you confirm the version? When did you deploy it?

3

Sorry for that. The version is 17.06.0 CE.

4

@torsakch Can you explain a bit the specific network customizations you performed? Wanted to see if we can potentially expose those as parameters in some form so that upgrades can go through smoothly.

5

@ddebroy I’ve changed the “subnetPrefix” from “10.0.0.0/8” to “14.0.0.0/8” when I created the swarm from the template. Thank you so much

6

Do you have any work around for now? Thank you

7

There isn’t a trivial workaround I can think of at the moment once you have customized the template. You may try to modify the upgrade container docker4x/upgrade-azure: have the entry-point script upgrade.sh that sets the target template to upgrade to to point to a template that has your customizations and points to the Docker VHD that you want to upgrade to.