Prevent external service localhost question #497
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server/utils/helpers/updateENV.jsWhile the function function validDockerizedUrl(input = "") {
if (process.env.ANYTHING_LLM_RUNTIME !== "docker") return null;
try {
const { hostname } = new URL(input);
if (["localhost", "127.0.0.1", "0.0.0.0"].includes(hostname.toLowerCase()))
return "Localhost, 127.0.0.1, or 0.0.0.0 origins cannot be reached from inside the AnythingLLM container. Please use host.docker.internal or a real machine ip to connect to your external service.";
return null;
} catch {}
return null;
} |
cabwds
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to cabwds/anything-llm
that referenced
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Jul 3, 2025
* Prevent external service localhost question * add 0.0.0.0 to docker-invalid URL * clarify hint
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Every time a potential user of AnythingLLM uses AnythingLLM in a dockerized context there is confusion on why some external service running on localhost/loopback [LocalAi, LMStudio, Ollama, Chroma, etc] cannot connect, resulting in failed messages or other problems during use.
This is because localhost or loopback IPs resolve within the AnythingLLM container while the service they wish to connect to uses the host machine network. The full fix is to simply replace
localhostor127.0.0.1withhost.docker.internaland the container can then reach the host machine network.This is already outlined in the Docker README as an important tag, but considering some may be pulling from remote and never consulting the README this detail gets missed nearly all the time.
This PR blocks localhost or 127.0.0.1 from being used for external services while running inside of Docker.
Hopefully, we never have to answer this question again 😵