devcontainers / devcontainers/features
Docker Compose default network is not accessible in docker-in-docker on Ubuntu 26.04
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Descrizione
Ubuntu version: 26.04
Docker version: 29.5.3
Problem: Docker Compose default network connectivity is broken in docker-in-docker environment - containers cannot communicate with each other
Root cause: iptables-legacy FORWARD chain has default policy set to DROP
Workaround: sudo iptables-legacy -P FORWARD ACCEPT
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