Railway•12mo ago

How does python work in railway?

I'm trying to just install all the packages from my requirements.txt file but i cant seem to get it to work in railway? Is python preinstalled? this is my code in the dockerfile currently:

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

Solution:

It was definitely the need for a venv thank you for the help. For anyone else who may somehow encounter this problem heres my docker file with the implemented fixes: https://pastebin.com/MeUwFBz7

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Use Alpine Linux as the base imageFROM alpine:latest# Set an envi...

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53 Replies

Percy•12mo ago

Project ID: 24fb8332-eced-45f2-9c1b-a744e18df2ec

loyahdevOP•12mo ago

24fb8332-eced-45f2-9c1b-a744e18df2ec ive been using chatgpt to help but cant find a quick solution

Fragly•12mo ago

What Railway does is if it detects a requirements.txt file, it'll assume you're running a python project and spin up a Dockerfile based on that information ( you can of course write your own Dockerfile though, If you do, I think you'd need to install a python image in the Dockerfile )

loyahdevOP•12mo ago

Thanks for the speedy reply! Heres my current docker file. I will try removing all python references to see if it does this automatically:

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip python py-pip --no-cache

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

EXPOSE 3000

CMD [ "node", "." ]

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip python py-pip --no-cache

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

EXPOSE 3000

CMD [ "node", "." ]

alright it definitely is deploying now without python references

Fragly•12mo ago

🤔 oh You're using node? so are you using both python and nodejs then? it won't install anything automatically if you have a Dockerfile

loyahdevOP•12mo ago

oh yes i am forgot to say it i have some specific things that need python so im using sub proccesses in node js

Fragly•12mo ago

You can get railway to give you both providers ( python and nodejs ) by adding a nixpacks.toml file in your project you can then specify the providers, like so:

providers = ['nodejs', 'python']

providers = ['nodejs', 'python']

more info on that here: https://nixpacks.com/docs/configuration/file alternatively there should also be a GUI option in your service settings under the Builds tab but that setting is missing for me

loyahdevOP•12mo ago

loyahdevOP•12mo ago

its on my end over here

Fragly•12mo ago

yea nah it's not there

Fragly•12mo ago

I'm talking about this

loyahdevOP•12mo ago

ohhh yeah i dont seem to have that

Fragly•12mo ago

yea, I made a feedback post about it, hope they'll add it back at some point in the meantime you can do what i suggested earlier with the nixpacks.toml file

loyahdevOP•12mo ago

alrighty! testing now just gonna note this here:

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

EXPOSE 3000

CMD [ "node", "." ]

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

EXPOSE 3000

CMD [ "node", "." ]

Brody•12mo ago

fragly build providers aren't applicable at all when using a dockerfile

Fragly•12mo ago

Brody•12mo ago

that's a nixpacks thing, when using a dockerfile nixpacks isn't involved in anyway shape or form

loyahdevOP•12mo ago

ahh

Fragly•12mo ago

Makes sense, my bad

loyahdevOP•12mo ago

so i should delete the nixpacks.toml file?

Fragly•12mo ago

yea, my bad It'd work normally but when you have a dockerfile then it won't do any of that for you which I literally mentioned I just forgor

Brody•12mo ago

what are we trying to do here, give me a tl;dr

Fragly•12mo ago

Wants Python and Node in their project with a dockerfile

loyahdevOP•12mo ago

aiming to just install some packages from my requirements.txt file currently

Brody•12mo ago

what's node used for and what's python used for?

loyahdevOP•12mo ago

node is used for my api server and python is used for some apple certificate validation im running the python file through a node js sub process @Brody

Brody•12mo ago

well I'm pretty sure apk has a python and pip package too, so just install it

loyahdevOP•12mo ago

must be doing something wrong

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip

RUN apk add --update --no-cache python3
RUN python3 -m ensurepip
RUN pip3 install --no-cache --upgrade pip setuptools

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

EXPOSE 3000

CMD [ "node", "." ]

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip

RUN apk add --update --no-cache python3
RUN python3 -m ensurepip
RUN pip3 install --no-cache --upgrade pip setuptools

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

EXPOSE 3000

CMD [ "node", "." ]

ERROR: failed to solve: process "/bin/sh -c python3 -m ensurepip" did not complete successfully: exit code: 1

Brody•12mo ago

but what was the actual error it would be further up in the logs and it doesn't look like you installed pip?

loyahdevOP•12mo ago

woops yup just noticed one sec

loyahdevOP•12mo ago

would this be correct:

WORKDIR /app
RUN apk add python3 py3-pip
RUN pip install -r requirements.txt

WORKDIR /app
RUN apk add python3 py3-pip
RUN pip install -r requirements.txt

https://pastebin.com/4N6t0z6V (logs)

Pastebin

=========================Using Detected Dockerfile=================...

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loyahdevOP•12mo ago

it definitely isnt based on that error I did note this and I don't know if its required:

> [5/9] RUN pip install -r requirements.txt:
 
2.044     deactivate
 
2.044
 
2.044     The virtual environment is not deleted, and can be re-entered by re-sourcing
 
2.044     the activate file.
 
2.044
 
2.044     To automatically manage virtual environments, consider using pipx (from the
 
2.044     pipx package).
 
2.044
 
2.044 note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
 
2.044 hint: See PEP 668 for the detailed specification.

> [5/9] RUN pip install -r requirements.txt:
 
2.044     deactivate
 
2.044
 
2.044     The virtual environment is not deleted, and can be re-entered by re-sourcing
 
2.044     the activate file.
 
2.044
 
2.044     To automatically manage virtual environments, consider using pipx (from the
 
2.044     pipx package).
 
2.044
 
2.044 note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
 
2.044 hint: See PEP 668 for the detailed specification.

@Brody

Brody•12mo ago

that error wouldn't be related to railway so please try to research the error as I'm not a python dev

loyahdevOP•12mo ago

alright

Adam•12mo ago

You shouldn't need any of this, Railway should auto detect that you're running a python app, automatically install your requirements.txt and you'll be good to go I don't see a reason why you need to use a Dockerfile here, Nixpacks should be able to do all that work for you

Brody•12mo ago

they also want node in the build, and are doing something with git during build, I think a dockerfile is fine for this usecase

loyahdevOP•12mo ago

i wouldnt technically need it but im installing a seperate package from git as said above:

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

Adam•12mo ago

Ah got it, I thought that was your repo, my mistake

loyahdevOP•12mo ago

oh alright i tried removing all the python references inside my dockerfile and it build and deployed but it has cryptography cannot be found when in fact it was in my requirements.txt file it used to work just not anymore and i cant figure out why

Brody•12mo ago

removing?

loyahdevOP•12mo ago

yeah

Brody•12mo ago

let's see your current dockerfile

loyahdevOP•12mo ago

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

# Install zsign + other dependencies including openssl
RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip python3 py3-pip

# Install Python and pip
RUN apk add python3 py3-pip
RUN pip3 install --upgrade pip

# Install Python dependencies
COPY requirements.txt ./
RUN pip3 install -r requirements.txt

# Set Python 3 as the default version
RUN ln -sf python3 /usr/bin/python

# Clone and build zsign
RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

# Set up the working directory
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

# Expose the port the app runs on
EXPOSE 3000

# Command to run the app
CMD [ "node", "." ]

FROM alpine:latest
ARG DOMAIN
ENV DOMAIN=$DOMAIN

# Install zsign + other dependencies including openssl
RUN apk update && \
    apk add git nodejs npm cmake make g++ openssl openssl-dev zlib-dev zip python3 py3-pip

# Install Python and pip
RUN apk add python3 py3-pip
RUN pip3 install --upgrade pip

# Install Python dependencies
COPY requirements.txt ./
RUN pip3 install -r requirements.txt

# Set Python 3 as the default version
RUN ln -sf python3 /usr/bin/python

# Clone and build zsign
RUN git clone --depth=1 https://github.com/asdfzxcvbn/zsign.git && \
    mkdir -p zsign/build && cd zsign/build && \
    cmake .. && make && cp zsign /usr/local/bin/zsign

# Set up the working directory
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .

# Expose the port the app runs on
EXPOSE 3000

# Command to run the app
CMD [ "node", "." ]

Brody•12mo ago

are you including your venv in your repo?

loyahdevOP•12mo ago

i dont have an env file but are these the same?

Brody•12mo ago

not quite what I asked lol

loyahdevOP•12mo ago

Lmao well I don’t exactly know what a venv is

Brody•12mo ago

Google 😉

loyahdevOP•12mo ago

Alrighty Ooh I see But no I don’t have one

Brody•12mo ago

gotcha, well wouldn't hurt to Google this error too that's all I would do

loyahdevOP•12mo ago

alright I definitely will. Thanks I’ll get back to you soon if it doesn’t work

Solution

loyahdev•12mo ago

It was definitely the need for a venv thank you for the help. For anyone else who may somehow encounter this problem heres my docker file with the implemented fixes: https://pastebin.com/MeUwFBz7

Pastebin

Use Alpine Linux as the base imageFROM alpine:latest# Set an envi...

Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

Brody•12mo ago

glad you where able to solve this!

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Programming

How does python work in railway?