Hello,
I'm an infra structure engineer at a local company, all our clients are hosted on AWS either on EC2 or ECS, i'm the one in charge of creating the infra structure and the deployments using code pipeline, code build and code deploy, i can manage this done in few hours wither from bitbucket or github.
the fully auto deployment can only be done from github, but from bitbucket you will only need to go to pipelines and select the deployment pipeline and click start.
will also add a deployment status notification for what happens on AWS to be sent on each step of it.