Support for canary releases with EXTERNAL deployments

[jfranzoi]

Hi, I was wondering if there was already any reasoning ongoing for supporting canary releases, for example relying on EXTERNAL deployments. Here some references on the topic:

• external deployments, see here and here. additional resources here and here
• example with Jenkins as the external tool for orchestrating, see here and here
• example with Bash scripting, see here and here

Briefly, should be a matter of migrating from task-definitions and force service deployments, to interact with task set and ELB listeners.

I'd like contributing, but don't want to overlap with any ongoing effort on the topic!

[jfranzoi]

Ok, so I just started prototyping this, and indeed it was not so complex to arrange a skeleton version with proper canary and stable deployments, controlled by the script. For reference, I'm working here.

[jfranzoi]

@fillup just created a WIP PR for this, in order to get some feedback on the overall idea!
I'm currently using on development, not yet on production envs, and so far feedback is good, even if it lacks some more robust error handling.

please, let me know! thanks 👍