I have been trying to deploy my first Fast API from my github to Railway.app but it is failing all the time.

I followed this

https://docs.railway.com/guides/fastapi

but still not sure what I am doing wrong

This is the error message

==============

context: a4eb69852c369aaacddef3bb0c4277bc

╔══════════════════════════════ Nixpacks v1.29.1 ══════════════════════════════╗

║ setup │ python3, gcc ║

║──────────────────────────────────────────────────────────────────────────────║

║ build │ pip install --no-cache-dir -r requirements.txt ║

║──────────────────────────────────────────────────────────────────────────────║

║ start │ python3 -m uvicorn smartsynch.api.main:app --host 0.0.0.0 ║

║ │ --port $PORT ║

╚══════════════════════════════════════════════════════════════════════════════╝

#0 building with "builder-MCHC" instance using docker-container driver

#1 [internal] load build definition from Dockerfile

#1 transferring dockerfile: 2.46kB done

#1 DONE 0.0s

#2 [internal] load metadata for ghcr.io/railwayapp/nixpacks:ubuntu-1731369831

#2 DONE 0.1s

#3 [stage-0 1/10] FROM ghcr.io/railwayapp/nixpacks:ubuntu-1731369831@sha256:248c718af9f76e602170a3cdbf69658edf55c910023104e1f277e517b77977a0

#3 resolve ghcr.io/railwayapp/nixpacks:ubuntu-1731369831@sha256:248c718af9f76e602170a3cdbf69658edf55c910023104e1f277e517b77977a0 0.0s done

#3 DONE 0.0s

#4 [stage-0 4/8] RUN nix-env -if .nixpacks/nixpkgs-bf446f08bff6814b569265bef8374cfdd3d8f0e0.nix && nix-collect-garbage -d

#4 CACHED

#5 [stage-0 2/10] WORKDIR /app/

#5 CACHED

#6 [internal] load .dockerignore

#6 transferring context: 2B done

#6 DONE 0.0s

#7 [internal] load build context

#7 transferring context: 350.03kB 0.0s done

#7 DONE 0.0s

#8 [3/7] COPY .nixpacks/nixpkgs-bf446f08bff6814b569265bef8374cfdd3d8f0e0.nix .nixpacks/nixpkgs-bf446f08bff6814b569265bef8374cfdd3d8f0e0.nix

#8 CACHED

#9 [4/7] RUN nix-env -if .nixpacks/nixpkgs-bf446f08bff6814b569265bef8374cfdd3d8f0e0.nix && nix-collect-garbage -d

#9 CACHED

#10 [5/7] COPY . /app/.

#10 DONE 0.2s

#11 [6/7] RUN pip install --no-cache-dir -r requirements.txt

#11 0.097 /bin/bash: line 1: pip: command not found

#11 ERROR: process "/bin/bash -ol pipefail -c pip install --no-cache-dir -r requirements.txt" did not complete successfully: exit code: 127

---

[6/7] RUN pip install --no-cache-dir -r requirements.txt:

0.097 /bin/bash: line 1: pip: command not found

---

Dockerfile:22

20 | # build phase 21 | COPY . /app/. 22 | >>> RUN pip install --no-cache-dir -r requirements.txt 23 | 24 |

ERROR: failed to solve: process "/bin/bash -ol pipefail -c pip install --no-cache-dir -r requirements.txt" did not complete successfully: exit code: 127

Error: Docker build failed

---

and my Docker file looks like this

FROM python:3-alpine

WORKDIR /app

Copy local code to the container image

COPY . .

Install project dependencies

RUN pip install --no-cache-dir -r requirements.txt

Run the web service on container startup

CMD ["uvicorn", "smartsynch.api.main:app", "--host", "0.0.0.0", "--port", "8000"]

What am I doing wrong?

Is it something in the Service Settings maybe that I am missing?

Providers is set to Python, my Custom Command Build is "pip install --no-cache-dir -r requirements.txt" and Custom Start Command is "python3 -m uvicorn smartsynch.api.main:app --host 0.0.0.0 --port $PORT"

Any help very much appreciated!

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