Last week I containerized an app that was running fine locally。
Deployed to Docker。
Got connection refused errors immediately。
Checked the port mapping。
Checked the environment variables。
Ran curl localhost:3000 from inside。
来源：Dev.to
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AI技术 · 深度资讯 · 前沿观察。专注科技、AI、互联网领域的深度报道与前沿资讯。
