I am trying to create slim image with gunicorn Pillow numpy scipy PyBrain dependencies. However whatever I do, my image size becomes above 500 MB. Is there a any trick to decrease the size of the docker image?
FROM python:2.7-alpine
RUN echo "http://dl-4.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories
RUN apk --update add --no-cache \
lapack-dev \
gcc \
freetype-dev
RUN apk add --no-cache --virtual .build-deps \
gfortran \
musl-dev \
g++ \
jpeg-dev \
zlib-dev
RUN apk add --update tini
COPY requirements.txt /app/
COPY app/ /app/
WORKDIR /app
RUN pip install numpy==1.13.3
RUN pip install -r requirements.txt
RUN apk del .build-deps
EXPOSE 8080
ENTRYPOINT ["/sbin/tini", "--"]
CMD ["gunicorn", "-w 3", "-b :8080", "app:app"]
Build dependencies need to be removed in the same RUN command to avoid them being stored into their own layer. For example:
COPY requirements.txt /app/
RUN apk add --no-cache --virtual .build-deps \
gfortran \
musl-dev \
g++ \
jpeg-dev \
zlib-dev \
&& pip install -r requirements.txt \
&& apk del .build-deps
Note that this will result in additional build time every time requirements are updated because apk commands will be executed as well. If that is not acceptable for your application, then just remove the RUN apk del .build-deps step since that doesn't reduce image size, but it increases it given that the addition/removal of packages happen in different image layers.
Related
In my dockerfile, I was previously using FROM python:3.9-alpineon top of which librdkafka 1.9.2 is built and this was successful. But today, with the same docker file, the build failed by throwing the below error:
#error "confluent-kafka-python requires librdkafka v2.0.2 or later. Install the latest version of librdkafka from the Confluent repositories, see http://docs.confluent.io/current/installation.html".
When I searched in the internet, alpine:edge seems to have the newest version of librdkafka package. So I changed the dockerfile to FROM python:3.9-alpine:edge. But on building, this threw my an error:
Step 1/41 : FROM python:3.9-alpine:edge build 25-Jan-2023 10:25:20 invalid reference format build 25-Jan-2023 10:25:20 [?1h=[41m[37;1mAn error occurred when executing task '
I am new to docker and I used https://www.docker.com/blog/how-to-use-the-alpine-docker-official-image/ for the format. Please do help me regarding this.
This is my dockerfile currently:
FROM python:3.9-alpine:edge
RUN adduser -D pythonwebapi
WORKDIR /home/pythonwebapi
COPY requirements.txt requirements.txt
COPY logger_config.py logger_config.py
# COPY kong.ini kong.ini
# COPY iot.ini iot.ini
# COPY project.ini project.ini
# COPY eom.ini eom.ini
# COPY notify.ini notify.ini
RUN echo 'http://dl-3.alpinelinux.org/alpine/v3.9/main' >> /etc/apk/repositories
RUN apk update \
&& apk upgrade \
&& apk add --no-cache build-base \
autoconf \
bash \
bison \
boost-dev \
cmake \
flex \
zlib-dev
RUN apk add make gcc g++
RUN apk add libffi-dev
RUN apk update && apk --no-cache add librdkafka-dev
RUN apk add postgresql-dev gcc python3-dev musl-dev
RUN pip install --upgrade pip && pip install -r requirements.txt && pip install gunicorn
RUN apk del gcc g++ make
RUN pip install --no-cache-dir six pytest numpy cython
RUN pip install --no-cache-dir pandas
RUN pip install --no-cache-dir confluent-kafka
ARG ARROW_VERSION=3.0.0
ARG ARROW_SHA1=c1fed962cddfab1966a0e03461376ebb28cf17d3
ARG ARROW_BUILD_TYPE=release
ENV ARROW_HOME=/usr/local \
PARQUET_HOME=/usr/local
#Download and build apache-arrow
RUN mkdir -p /arrow \
&& wget -q https://github.com/apache/arrow/archive/apache-arrow-${ARROW_VERSION}.tar.gz -O /tmp/apache-arrow.tar.gz \
&& echo "${ARROW_SHA1} *apache-arrow.tar.gz" | sha1sum /tmp/apache-arrow.tar.gz \
&& tar -xvf /tmp/apache-arrow.tar.gz -C /arrow --strip-components 1 \
&& mkdir -p /arrow/cpp/build \
&& cd /arrow/cpp/build \
&& cmake -DCMAKE_BUILD_TYPE=$ARROW_BUILD_TYPE \
-DOPENSSL_ROOT_DIR=/usr/local/ssl \
-DCMAKE_INSTALL_LIBDIR=lib \
-DCMAKE_INSTALL_PREFIX=$ARROW_HOME \
-DARROW_WITH_BZ2=ON \
-DARROW_WITH_ZLIB=ON \
-DARROW_WITH_ZSTD=ON \
-DARROW_WITH_LZ4=ON \
-DARROW_WITH_SNAPPY=ON \
-DARROW_PARQUET=ON \
-DARROW_PYTHON=ON \
-DARROW_PLASMA=ON \
-DARROW_BUILD_TESTS=OFF \
.. \
&& make -j$(nproc) \
&& make install \
&& cd /arrow/python \
&& python setup.py build_ext --build-type=$ARROW_BUILD_TYPE --with-parquet \
&& python setup.py install \
&& rm -rf /arrow /tmp/apache-arrow.tar.gz
COPY app app
COPY init_app.py ./
ENV FLASK_APP init_app.py
RUN chown -R pythonwebapi:pythonwebapi ./
RUN chown -R 777 ./
USER pythonwebapi
EXPOSE 8000 7000
ENTRYPOINT ["gunicorn","--timeout", "7000","init_app:app","-k","uvicorn.workers.UvicornWorker","-b","0.0.0.0"]```
I am trying to use libreoffice in my Django app, to convert a docx file to pdf using python subprocess.
I have included libreoffice in my dockerfile:
Dockerfile:
FROM python:3.8-alpine
ENV PYTHONUNBUFFERED 1
COPY ./requirements.txt /requirements.txt
COPY ./behavioursolutiondjango /behavioursolutiondjango
COPY ./scripts /scripts
WORKDIR /behavioursolutiondjango
EXPOSE 8000
RUN python -m venv /py && \
/py/bin/pip install --upgrade pip && \
apk add --update python3-dev \
xmlsec xmlsec-dev \
gcc \
libc-dev \
libreoffice \
libffi-dev && \
apk add --update --no-cache postgresql-client && \
apk add --update --no-cache --virtual .tmp-deps \
build-base postgresql-dev musl-dev linux-headers && \
/py/bin/pip install -r /requirements.txt && \
apk del .tmp-deps && \
adduser --disabled-password --no-create-home app && \
mkdir -p /vol/web/static && \
mkdir -p /vol/web/media && \
chown -R app:app /vol && \
chmod -R 755 /vol && \
chmod -R +x /scripts
ENV PATH="/scripts:/py/bin:$PATH"
USER app
CMD ["run.sh"]
And have the following running to do the conversion:
subprocess.call(["soffice", "--headless", "--convert-to", "pdf", new_cert.cert.path])
But I am running into the following error:
LibreOffice 7.2 - Fatal Error: The application cannot be started.
User installation could not be completed.
I have spent hours on this and cannot figure out what im missing.
I would be more than happy to use something other than Libreoffice, but cannot find something that will work, other than libreoffice.
I'm trying to build a docker image, return error:
DNS lookup error
Dockerfile:
FROM python:3.7-alpine
LABEL maintainer="r.ofc#hotmail.com"
ENV PROJECT_ROOT /app
WORKDIR $PROJECT_ROOT
RUN apk update \
&& apk add mariadb-dev \
gcc\
python3-dev \
pango-dev \
cairo-dev \
libtool \
linux-headers \
musl-dev \
libffi-dev \
openssl-dev \
jpeg-dev \
zlib-dev
RUN pip install --upgrade pip
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
COPY . .
CMD python manage.py runserver 0.0.0.0:8000
i'm runing kubernetes locale useing minikube
When I install Python project, I get this error with Docker. I did not find a solution despite researching on the google. By the way When I run project on Docker, how to display on browser ?
test#test-VirtualBox:~/backend$ sudo docker build -t test .
Sending build context to Docker daemon 489kB
Step 1/11 : FROM python:3.6-alpine
---> 267db919e15e
Step 2/11 : RUN addgroup -S app && adduser -S -g app app
---> Using cache
---> ce1632a22469
Step 3/11 : WORKDIR /usr/src/app
---> Using cache
---> 01b36ea9b7c1
Step 4/11 : RUN apk --update --upgrade add --virtual deps gcc python3-dev linux-headers musl-dev alpine-sdk openssl-dev gmp-dev libffi-dev postgresql-dev && apk --update --upgrade add --no-cache libpq gmp
---> Running in d962dfc4a26a
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/community/x86_64/APKINDEX.tar.gz
ERROR: unsatisfiable constraints:
openssl-dev-1.0.2o-r2:
conflicts:
libressl-dev-2.7.4-r0[pc:libcrypto=1.0.2o]
libressl-dev-2.7.4-r0[pc:libssl=1.0.2o]
libressl-dev-2.7.4-r0[pc:openssl=1.0.2o]
libressl-dev-2.7.4-r0:
conflicts:
openssl-dev-1.0.2o-r2[pc:libcrypto=2.7.4]
openssl-dev-1.0.2o-r2[pc:libssl=2.7.4]
openssl-dev-1.0.2o-r2[pc:openssl=2.7.4]
satisfies:
postgresql-dev-10.5-r0[libressl-dev]
deps-0:
masked in: cache
satisfies: world[deps]
The command '/bin/sh -c apk --update --upgrade add --virtual deps gcc python3-dev linux-headers musl-dev alpine-sdk openssl-dev gmp-dev libffi-dev postgresql-dev && apk --update --upgrade add --no-cache libpq gmp' returned a non-zero code: 4
Dockerfile:
FROM python:3.6-alpine
RUN addgroup -S app && adduser -S -g app app
WORKDIR /usr/src/app
RUN apk --update --upgrade add --virtual deps \
gcc python3-dev linux-headers musl-dev \
alpine-sdk gmp-dev libffi-dev \
postgresql-dev && \
apk --update --upgrade add --no-cache libpq gmp
COPY ./requirements.txt requirements.txt
RUN pip install --no-cache-dir -r requirements.txt
RUN apk del deps
COPY . /usr/src/app
RUN chown -R app:app /usr/src/app
USER app
EXPOSE 8080
Why do you need to install openssl-dev package? Alpine packages are compiled with libressl. You can't install both openssl-dev and libressl-dev in container with alphine 3.6.
I've met the same problem. Our company build a base image based on python:2.7-alpine, but maybe it is too old. So don't install openssl-dev is not enough.
Look this :
satisfies:
postgresql-dev-10.5-r0[libressl-dev]
postgresql-dev rely on libressl-dev, so I delete openssl-dev firstly:
RUN apk del openssl-dev
Then everything is ok.
I got this error when i run command
sudo docker-compose up
Docker File:
FROM alpine
ARG AWS_RDS_USER
ARG AWS_RDS_PASSWORD
ARG AWS_RDS_HOST
ARG AWS_RDS_DATABASE
ARG LOCALE_SERVICE_URL
ARG CRYPTO_KEY
ENV APP_DIR=/app
ENV APP_ENV=production
ENV DATABASE_CONNECTION_STRING=mysql://${AWS_RDS_USER}:${AWS_RDS_PASSWORD}#${AWS_RDS_HOST}/${AWS_RDS_DATABASE}
ENV LOCALE_SERVICE_URL=$LOCALE_SERVICE_URL
ENV CRYPTO_KEY=$CRYPTO_KEY
COPY build/requirements.txt build/app.ini ${APP_DIR}/
COPY build/nginx.conf /etc/nginx/nginx.conf
COPY api ${APP_DIR}/api
RUN apk add --no-cache curl python pkgconfig python-dev openssl-dev libffi-dev musl-dev make gcc
RUN curl -sS https://bootstrap.pypa.io/get-pip.py | python
RUN apk update && \
apk add --virtual .build-deps autoconf gcc make g++ python-dev && \
apk add nginx uwsgi uwsgi-python py2-pip py-mysqldb && \
chown -R nginx:nginx ${APP_DIR} && \
chmod 777 /run/ -R && \
chmod 777 /root/ -R && \
pip2 install --upgrade pip && \
pip2 install -r ${APP_DIR}/requirements.txt && \
apk del .build-deps && \
rm -fR tmp/* && \
pw_migrate migrate --database=$DATABASE_CONNECTION_STRING --directory=$APP_DIR/api/migrations -v
EXPOSE 80
CMD nginx && uwsgi --ini ${APP_DIR}/app.ini
For solution, I tried to install below packages
1) gcc package.
2) libffi packages.
3) pip openssl packages.
But still error is not resolved. Any help should be appreciated
Try the solution suggested here
This is because you need a working compiler, the easiest way around
this is too install the build-base package like so:
apk add --no-cache --virtual .pynacl_deps build-base python3-dev
libffi-dev This will install various tools that are required to
compile pynacl and pip install pynacl will now succeed.
Note it is optional to use the --virtual flag but it makes it easy to
trim the image because you can run apk del .pynacl_deps later in your
dockerfile as they are not needed any more and would reduce the
overall size of the image.