Docker by default supports 3 networks: 1) None: This mode will not configure any IP for the container and doesn’t have any access to the external network as well as for other containers. It does have the loopback address and can be used for running batch jobs. # docker run -it –network=none ubuntu:14.04 /bin/bash root@66308c6686be:/# … Read more
As answered here there is a software solution for this, called DNS Proxy Server. $ sudo ./dns-proxy-server $ docker run –rm –hostname nginx.dev nginx $ ping nginx.dev PING nginx.dev (172.17.0.4) 56(84) bytes of data. 64 bytes from 172.17.0.4 (172.17.0.4): icmp_seq=1 ttl=64 time=0.043 ms 64 bytes from 172.17.0.4 (172.17.0.4): icmp_seq=2 ttl=64 time=0.022 ms
Links have been replaced by networks. Docker describes them as a legacy feature that you should avoid using. You can safely remove the link and the two containers will be able to refer to each other by their service name (or container_name). With compose, links do have a side effect of creating an implied dependency. … Read more
You have a few options, but the first 2 that come time mind are: In container 1, install the Docker CLI and bind mount /var/run/docker.sock (you need to specify the bind mount from the host when you start the container). Then, inside the container, you should be able to use docker commands against the bind … Read more
To expose just one port, this is what you need to do: docker run -p <host_port>:<container_port> To expose multiple ports, simply provide multiple -p arguments: docker run -p <host_port1>:<container_port1> -p <host_port2>:<container_port2>
After the docker installation you have 3 networks by default: docker network ls NETWORK ID NAME DRIVER SCOPE f3be8b1ef7ce bridge bridge local fbff927877c1 host host local 023bb5940080 none null local I’m trying to keep this simple. So if you start a container by default it will be created inside the bridge (docker0) network. $ docker … Read more
As found here, I got this to work with docker-compose. Save as docker-compose.yml: version: ‘3’ services: outgoing-wont-work: image: alpine networks: – no-internet command: ping -c 3 google.com # will crash internal-will-work: image: alpine networks: – no-internet command: ping -c 3 internal-and-external internal-and-external: image: alpine networks: – no-internet – internet command: ping -c 3 google.com networks: … Read more
Edit: If you are using Docker-for-mac or Docker-for-Windows 18.03+, just connect to your mysql service using the host host.docker.internal (instead of the 127.0.0.1 in your connection string). If you are using Docker-for-Linux 20.10.0+, you can also use the host host.docker.internal if you started your Docker container with the –add-host host.docker.internal:host-gateway option. Otherwise, read below TLDR … Read more