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2 posts tagged with "Docker Compose"

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Docker Compose service won't come back after restart? Check the restart policy

· 5 min read
CCLEE
CCLEE

Debugging a Milvus-dependent service that failed to start in a RAG knowledge base project — full writeup below.

TL;DR​

After a host reboot (or a container crash), a group of services didn't come back: the app port had no listener and docker ps -a showed everything Exited. The root cause: docker-compose.yml had no restart policy (default no), so once a container died it stayed dead. Fix: set restart: always on every production service so the infrastructure self-heals after a crash or reboot.

Container Port Unreachable from WSL2? The Docker Desktop network_mode:host Trap

· 3 min read
CCLEE
CCLEE

Encountered this issue while building an AI data analytics platform (Airflow + PostgreSQL) for a client. Here's the root cause and solution.

TL;DR​

On Docker Desktop for Windows (WSL2 backend), network_mode: host container ports are unreachable from the WSL2 host. The container shows the port listening, but curl localhost:PORT returns connection refused. The fix: use network_mode: !reset in your override file to remove host mode, then switch to bridge + external network + port mapping.