I am new to docker and trying to learn it by it's documentation. AS i need to create a NextJS build using docker image for nginx server i have followed the below process.
Install the nginx
Seeding the port 80 to 3000 in the default config.
Symlink the out directory to base nginx directory
CMD to take care the production build and symlinking of the out directory.
FROM node:alpine AS deps
RUN apk add --no-cache libc6-compat git
RUN apt-get install nginx -y
WORKDIR /sample-app
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile
FROM node:alpine AS builder
WORKDIR /sample-app
COPY . .
COPY --from=deps /sample-app/node_modules ./node_modules
RUN yarn build
FROM node:alpine AS runner
WORKDIR /sample-app
ENV NODE_ENV production
RUN ls -SF /sample-app/out /usr/share/nginx/html
RUN -p 3000:80 -v /sample-app/out:/usr/share/nginx/html:ro -d nginx
RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001
RUN chown -R nextjs:nodejs /sample-app/out
USER nextjs
CMD ["nginx -g daemon=off"]
While running the docker build shell script command as sudo docker build . -t sample-app it throws the error The command '/bin/sh -c apt-get install nginx -y' returned a non-zero code: 127
I do not have much experience with alpine images, but I think that you have to use apk (Alpine Package Keeper) for installing packages
try apk add nginx instead of apt-get install nginx -y
Related
This looks like a common issue so I checked a few SO posts but none of them solved my problem.
Here is my Dockerfile:
# MkDocs container
FROM python:3-alpine AS build-env
RUN apk add bash
RUN pip install --upgrade pip
RUN pip install pymdown-extensions \
&& pip install mkdocs \
&& pip install mkdocs-material \
&& pip install mkdocs-rtd-dropdown \
&& pip install mkdocs-git-revision-date-plugin \
&& pip install mkdocs-git-revision-date-localized-plugin \
&& pip install mkdocs-redirects
# executed at ~/Developer/MkDocs
RUN mkdir -p /home/mkdocs/
WORKDIR /home/mkdocs/
COPY . .
RUN mkdocs build -s
WORKDIR /
# Nginx container
FROM nginx:1.21.6-alpine
RUN apk add bash
EXPOSE 80
RUN cat /etc/nginx/nginx.conf
COPY nginx.conf /etc/nginx/nginx.conf
WORKDIR /
RUN mkdir -p /home/mkdocs
COPY --from=build-env /home/mkdocs/site/ /home/mkdocs/
RUN mv /home/mkdocs/* /usr/share/nginx/html/
RUN chown nginx:nginx /usr/share/nginx/html/*
USER nginx:nginx
And here is the command to run docker:
docker run -it --name mkdocs -p 8789:80 nginx
Running localhost:8789 only shows the default nginx homepage, not the built one of MkDocs. I also run docker exec -it --user root <PID> bash to check the directory /usr/share/nginx/html/ but the copied files are not there.
My other checks:
First, I'm 100% sure that the files built in the first stage works and exists
Second, this is what completely frustrated me out. If I run the docker using docker run -it --entrypoint=/bin/bash mkdocs:v1, I can actually see the built MkDocs files:
bash-5.1$ ls /usr/share/nginx/html
404.html 50x.html assets index.html search sitemap.xml sitemap.xml.gz
bash-5.1$
I'm trying to build a Python docker image which pip installs from a private repository using ssh. The details of which are in a requirements.txt file.
I've spent a long time reading guides from StackOverflow as well as the official Docker documentation on the subject ...
https://docs.docker.com/develop/develop-images/build_enhancements/#using-ssh-to-access-private-data-in-builds
https://docs.docker.com/compose/compose-file/build/#ssh
... and have come up with a Dockerfile which builds and runs fine when using:
$ docker build --ssh default -t build_tester .
However, when I try to do the same in a docker-compose.yml file, I get the following error:
$ docker-compose up
services.build-tester.build Additional property ssh is not allowed
This is the same even when enabling buildkit:
$ COMPOSE_DOCKER_CLI_BUILD=1 DOCKER_BUILDKIT=1 docker-compose up
services.build-tester.build Additional property ssh is not allowed
Project structure
- docker-compose.yml
- build_files
- Dockerfile
- requirements.txt
- app
- app.py
Dockerfile
# syntax=docker/dockerfile:1.2
FROM python:bullseye as builder
RUN mkdir -p /build/
WORKDIR /build/
RUN apt-get update; \
apt-get install -y git; \
rm -rf /var/lib/apt/lists/*
RUN mkdir -p -m 0600 ~/.ssh; \
ssh-keyscan -H github.com >> ~/.ssh/known_hosts
RUN python3 -m venv env; \
env/bin/pip install --upgrade pip
COPY requirements.txt .
RUN --mount=type=ssh \
env/bin/pip install -r requirements.txt; \
rm requirements.txt
FROM python:slim as runner
RUN mkdir -p /app/
WORKDIR /app/
COPY --from=builder /build/ .
COPY app/ .
CMD ["env/bin/python", "app.py"]
docker-compose.yml
services:
build-tester:
container_name: build-tester
image: build-tester
build:
context: build_files
dockerfile: Dockerfile
ssh:
- default
If I remove ...
ssh:
- default
... the docker-compose up command builds the image OK but obviously doesn't run as app.py doesn't have the required packages installed from pip.
I'd really like to be able to get this working in this way if possible so any advice would be much appreciated.
OK - so ended up being a very simple fix... Just needed to ensure docker-compose was updated to version 2.6 on my Mac.
For some reason brew wasn't updating my docker cask properly so was still running a package from early Jan 2022. Seems --ssh compatibility was added sometime between then and now.
I have been trying for almost 3 weeks to build and run a meteor app (bundle) using Docker, I have tried all the majors recommendations in Meteor forums, Stackoverflow and official documentarion with no success, first I tried to make the bundle and put inside the docker but have awful results, then I realized what I need to do is to make the bundle inside the docker and use a multistage Dockerfile, here is the one I am using right now:
FROM chneau/meteor:alpine as meteor
USER 0
RUN mkdir -p /build /app
RUN chown 1000 -R /build /app
WORKDIR /app
COPY --chown=1000:1000 ./app .
COPY --chown=1000:1000 ./app/packages.json ./packages/
RUN rm -rf node_modules/*
RUN rm -rf .meteor/local/*
USER 1000
RUN meteor update --packages-only
RUN meteor npm ci
RUN meteor build --architecture=os.linux.x86_64 --directory /build
FROM node:lts-alpine as mid
USER 0
RUN apk add --no-cache python make g++
RUN mkdir -p /app
RUN chown 1000 -R /app
WORKDIR /app
COPY --chown=1000:1000 --from=meteor /build/bundle .
USER 1000
WORKDIR /app/programs/server
RUN rm -rf node_modules
RUN rm -f package-lock.json
RUN npm i
FROM node:lts-alpine
USER 0
ENV TZ=America/Santiago
RUN apk add -U --no-cache tzdata && cp /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
RUN mkdir -p /app
RUN chown 1000 -R /app
WORKDIR /app
COPY --chown=1000:1000 --from=mid /app .
USER 1000
ENV LC_ALL=C.UTF-8
ENV ROOT_URL=http://localhost/
ENV MONGO_URL=mongodb://locahost:21027/meteor
ENV PORT=3000
EXPOSE 3000
ENTRYPOINT [ "/usr/local/bin/node", "/app/main.js" ]
if I build with docker build -t my-image:v1 . then run my app with docker run -d --env-file .dockerenv --publish 0.0.0.0:3000:3000 --name my-bundle my-image:v1 it exposes port:3000 but when I try to navigate with my browser to http://127.0.0.1:3000 it redirects to https://localhost, if i do docker exec -u 0 -it my-bundle sh, then apk add curl, then curl 127.0.0.1:3000 I can see the meteor app running inside docker.
Has anyone had this issue before, maybe I am missing some configuration? my bundle also works fine outside docker with node main.js in the bundle folder and can visit http://127.0.0.1:3000 with my browser.
Thanks in advance
My api-server Dockerfile is following
FROM node:alpine
WORKDIR /src
COPY . .
RUN rm -rf /src/node_modules
RUN rm -rf /src/package-lock.json
RUN yarn install
CMD yarn start:dev
After docker-compose up -d
I tried
$ docker exec -it api-server sh
/src # curl 'http://localhost:3000/'
sh: curl: not found
Why is the command curl not found?
My host is Mac OS X.
node:alpine image doesn't come with curl. You need to add the installation instruction to your Dockerfile.
RUN apk --no-cache add curl
Full example from your Dockerfile would be:
FROM node:alpine
WORKDIR /src
COPY . .
RUN rm -rf /src/node_modules
RUN rm -rf /src/package-lock.json
RUN apk --no-cache add curl
RUN yarn install
CMD yarn start:dev
Using DockerToolbox, I've been trying for the past few days to update my container to run in heroku.
I cant seem to update the code in the container.
Here are some of things I've tried:
in Docker file change COPY . /app to ADD . /app
Removed docker machine and create a virtualbox
`docker-machine rm default`
`docker-machine create --drive virtualbox default`
build/run docker image
`docker build --no-cache -t appname`
`docker run -it -p 8888:8080 appname`
Also tried docker build --no-cache .
Docker File
FROM python:3.6
# create and set working directory
RUN mkdir /app
WORKDIR /app
# Add current directory code to working directory
ADD . /app/
# set default environment variables
ENV PYTHONUNBUFFERED 1
ENV LANG C.UTF-8
ENV DEBIAN_FRONTEND=noninteractive
ENV PORT 8080
RUN wget http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz && \
tar -xvzf ta-lib-0.4.0-src.tar.gz && \
cd ta-lib/ && \
./configure --prefix=/usr && \
make && \
make install
COPY . /app
WORKDIR /app
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt
RUN pip install ta-lib
EXPOSE 8080
CMD gunicorn appname.wsgi:application --bind 0.0.0.0:$PORT