I'm deploying a python flask app on elastic beanstalk. The configuration is as follows:
VPC ID: vpc-XXX
Associate Public IP Address: false
Instance subnets: subnet-X1
ELB subnets: subnet-X1
ELB visibility: internal
After deploying the app works for few minutes and then dies with the following error:
Instance ELB health state has been "OutOfService" for 10 minutes: Instance has failed at least the UnhealthyThreshold number of health checks consecutively.
I have found out that the inbound and outbound rules being used by security group for elastic load balancer disappear/reset on their own. If I manually set these rules again, the app works for sometime and then fails again in the same manner as described above. Is there some other settings that I should look at?
