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Sumit Rawal answered on November 3, 2022 Popularity 10/10 Helpfulness 3/10

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Dockerfiles are how we containerize our application, or how we build a new container from an already pre-built image and add custom logic to start our application. From a Dockerfile, we use the Docker build command to create an image.

Think of a Dockerfile as a text document that contains the commands we call on the command line to build an image.

Below is an example of a Dockerfile:

FROM python:3

WORKDIR /usr/src/app

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

COPY . .

CMD [ "python", "./your-daemon-or-script.py" ]

Popularity 10/10 Helpfulness 3/10 Language python

Source: Grepper

Tags: python

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Contributed on May 14 2023

Sumit Rawal

0 Answers Avg Quality 2/10

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FROM python:3.9-alpine

ENV PYTHONUNBUFFERED 1

# Install system dependencies
RUN apk update \
    && apk add --no-cache mariadb-dev build-base \
    && apk add --no-cache mariadb-connector-c

# Set environment variables
ENV MYSQLCLIENT_CFLAGS="-I/usr/include/mariadb"
ENV MYSQLCLIENT_LDFLAGS="-L/usr/lib -lmariadb"

WORKDIR /app

COPY requirements.txt /app/requirements.txt

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

COPY . /app

RUN chmod +x /app/run.sh

EXPOSE 8000

CMD ["./run.sh"]

Popularity 9/10 Helpfulness 4/10 Language whatever

Source: chat.openai.com

Tags: dockerfile d

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Contributed on Nov 22 2023

Peter Kyale

0 Answers Avg Quality 2/10

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#### base ####
# cache our node version for installing later
FROM node:18.3.0-slim as node
FROM ubuntu:focal-20220531 as base
ENV NODE_ENV=production
# Avoid running nodejs process as PID 1 (use tini)
# You may also need development tools to build native npm addons:
# apt-get install gcc g++ make
RUN apt-get update \
    && apt-get -qq install -y --no-install-recommends \
    tini \
    && rm -rf /var/lib/apt/lists/*
EXPOSE 3000

# new way to get node, let's copy in the specific version we want from a docker image
# this avoids depdency package installs (python3) that the deb package requires
COPY --from=node /usr/local/include/ /usr/local/include/
COPY --from=node /usr/local/lib/ /usr/local/lib/
COPY --from=node /usr/local/bin/ /usr/local/bin/
# reset symlinks
RUN corepack disable && corepack enable

# create node user and group, then create app dir
RUN groupadd --gid 1000 node \
    && useradd --uid 1000 --gid node --shell /bin/bash --create-home node \
    && mkdir /app \
    && chown -R node:node /app

WORKDIR /app
USER node
COPY --chown=node:node package*.json yarn*.lock ./
RUN npm ci --only=production && npm cache clean --force

#### dev ####
# no source to be added, and assumes bind mount
FROM base as dev
ENV NODE_ENV=development
ENV PATH=/app/node_modules/.bin:$PATH
RUN npm install --only=development && npm cache clean --force
CMD ["nodemon", "index.js"]

#### source ####
FROM base as source
COPY --chown=node:node . .

#### test (as needed) ####
# FROM source as test
# ENV NODE_ENV=development
# ENV PATH=/app/node_modules/.bin:$PATH
# COPY --from=dev /app/node_modules /app/node_modules
# RUN npx eslint .
# RUN npm test
# CMD ["npm", "run", "test"]

#### prod ####
FROM source as prod
ENTRYPOINT ["/usr/bin/tini", "--"]
CMD ["node", "index.js"]

Popularity 10/10 Helpfulness 2/10 Language whatever

Source: zenn.dev

Tags: dockerfile d

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Contributed on Nov 03 2022

Ken Kondo

0 Answers Avg Quality 2/10

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