My docker container does not have internet access. I tried so many things from multiple places but unable to resolve the issue.

Please help anyone has faced this problem.

Specifications - CentOS 7, docker ce 19.3.0

Where do you host it locally on your server or on a cloud hoster?
what are your firewall and proxy and routing settings?

@heyheni Amazon EC2 instance

@heyheni do you think it's something to do with firewall. In this case host machine should also not have access to internet

And how is your container set up?
do you have a load balancing routing container that connects to the other containers?

@heyheni nothing like that it's just stand alone container

@heyheni I am running
Docker run -it centos7 sh and trying to ping Google.

@arvinds did you try using bridge networks?

„Enable forwarding from Docker containers to the outside world. By default, traffic from containers connected to the default bridge network is not forwarded to the outside world.“

https://docs.docker.com/network/...

do a checklist
is centos configured to connect to the outside world
is docker configured to connect to the outside world
Is your container configured to connect the outside world
Is your app configured to connect to the outside world

https://docs.docker.com/network/...

and read about how to use swarm to create a routing firewall fail2ban container to protect your swarm from malicious outside bots.
>>> https://docs.docker.com/engine/...

https://github.com/pitkley/dfw

add the google dns to /etc/resolv.conf of host VM And restart the docker service.

@heyheni enable port forwarding didn't help

@sameerraj did not help

@heyheni when I use host network with -- network also then container has access to internet.

@heyheni but when I create my own bridge network it doesn't work and I don't want to use host network.

@heyheni I am just build images and publishing it to docker registry so i don't need any custom firewall or docker swarm.

- Bind 0.0.0.0
- Bind a port over 5000
- Configure your security group to allow access
- Use ECS

@SortOfTested I don't use all this in my application it's just for ci purpose so I don't think I need to configure these things