I am new to docker. I build a docker image using the below code
FROM ubuntu
ADD requirements.txt .
RUN apt-get update && \
apt-get install -y python3 && \
apt install python3-pip -y && \
apt-get install -y libglib2.0-0 \
libsm6 \
libxrender1 \
libxext6
RUN python3 -m pip install -r requirements.txt
COPY my_code /container/home/user
ENV PYTHONPATH /container/home/user/program_dir_1
RUN apt install -y libgl1
WORKDIR /container/home/user
CMD python3 program_dir_1/program_dir_2/program_dir_3/main.py
Now I have a local dir /home/host/local_dir. I want to write/copy all the file that the program creates during the runtime to this local dir.
I am using the below command to bind the volume
docker run -it --volume /home/host/local_dir:/container/home/user my_docker_image
It is giving me an error that
program_dir_1/program_dir_2/program_dir_3/main.py [Errno 2] No such file or directory
When I run the below command
docker run -it --volume /home/host/local_dir:/container/home/user my_docker_image pwd
It is giving the path to the host dir which I linked. It seems like it is also switching the working directory to the host volume to which I am linking.
Can anyone please help me to understand how to copy all the files and data generated using the working directory of the container to the directory of the host?
PS: I have used the below StackOverflow link and tried to understand but didn't get any success
How to write data to host file system from Docker container # Found one solution but got the error that
docker run -it --rm --volume v_mac:/home/host/local_dir --volume v_mac:/container/home/user my_docker_image cp -r /home/host/local_dir /container/home/user
Docker: Copying files from Docker container to host # This is not much of use as I assume the container should be in a running state. In my mine it exited after completion of the program
Related
I am trying to use Selenium on one of my airflow tasks. I have airflow running on apache/airflow:2.1.4 docker image.
I get the following error when I use selenium in my airflow task (since I'm missing firefox)
FileNotFoundError: [Errno 2] No such file or directory: 'firefox': 'firefox'
How would I go about adding geckodriver and firefox to the airflow image?
I have my docker-compose build the following Dockerfile for airflow,
FROM apache/airflow:2.1.4
WORKDIR /python_dependencies
COPY ./requirements.txt .
RUN pip3 install -r requirements.txt
apache/airflow:2.1.4 is based on debian, so you just need to use apt-get install firefox-esr to get firefox command, while download pre-built binary from geckodriver github to install geckodriver.
Dockerfile:
FROM apache/airflow:2.1.4
USER root
RUN apt-get update \
&& apt-get install -y --no-install-recommends \
ca-certificates curl firefox-esr \
&& rm -fr /var/lib/apt/lists/* \
&& curl -L https://github.com/mozilla/geckodriver/releases/download/v0.30.0/geckodriver-v0.30.0-linux64.tar.gz | tar xz -C /usr/local/bin \
&& apt-get purge -y ca-certificates curl
USER airflow
Verify:
$ docker build -t abc:1 .
$ docker run --rm -it --entrypoint=which abc:1 firefox
/usr/bin/firefox
$ docker run --rm -it --entrypoint=which abc:1 geckodriver
/usr/local/bin/geckodriver
This question already has answers here:
Docker: Copying files from Docker container to host
(27 answers)
Closed 1 year ago.
I have a docker file
FROM ubuntu:20.04
################################
### INSTALL Ubuntu build tools and prerequisites
################################
# Install build base
ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y \
build-essential \
git \
subversion \
sharutils \
vim \
asciidoc \
binutils \
bison \
flex \
texinfo \
gawk \
help2man \
intltool \
libelf-dev \
zlib1g-dev \
libncurses5-dev \
ncurses-term \
libssl-dev \
python2.7-dev \
unzip \
wget \
rsync \
gettext \
xsltproc && \
apt-get clean && rm -rf /var/lib/apt/lists/*
ARG FORCE_UNSAFE_CONFIGURE=1
RUN git clone https://git.openwrt.org/openwrt/openwrt.git
WORKDIR /openwrt
RUN ./scripts/feeds update -a && ./scripts/feeds install -a
COPY .config /openwrt/.config
RUN mkdir files
WORKDIR /files
RUN mkdir etc
WORKDIR /etc
RUN mkdir uci-defaults
WORKDIR /uci-defaults
COPY xx_custom /openwrt/files/etc/uci-defaults/xx_custom
WORKDIR /openwrt
RUN make -j 4
RUN ls /openwrt/bin/targets/ramips/mt76x8
WORKDIR /root
CMD ["bash"]
I want to copy all the files inside the folder mt76x8 to the host. I want to that inside the dockerfile so that when I run the docker file I should get the generated files in my host.
How can I do that?
you can use the volume mount to access the docker-generated artifacts on the host machine.
you can also run the command
docker cp to copy the files to the host machine.
if don't want to use the docker command as mention only option is to use the volume.
you can also use docker create once the docker image is ready to create the writable layer and copy data.
You have two choices.
Use docker volumes to map the /openwrt/bin/targets/ramips/mt76x8 folder when you are running the container. i.e. docker run -v {VoluneName}:/openwrt/bin/targets/ramips/mt76x8. All of the files in the mt76x8 folder would be available in the volume folder. If you are using Linux then you will find the docker volumes in /var/lib/docker/volumes/
You can use docker cp command to copy data from container to the host machine. Here is an example
AM completely new to Docker, now am trying to create a container for tomact from ubuntu base image & written a docker file acoding to it:
From ubuntu
RUN apt-get update -y && apt-get upgrade -y
RUN apt-get install wget -y
RUN apt-get install openjdk-8-jdk -y
RUN mkdir /usr/local/tomcat
RUN wget https://mirrors.estointernet.in/apache/tomcat/tomcat-8/v8.5.61/bin/apache-tomcat-8.5.61.tar.gz
RUN tar xvzf apache-tomcat-8.5.61.tar.gz
RUN mv apache-tomcat-8.5.61 /usr/local/tomcat/
#MD ./usr/local/tomcat/apache-tomcat-8.5.61/bin/catlina.sh run
EXPOSE 8080
RUN /usr/local/tomcat/apache-tomcat-8.5.61/bin/catlina.sh run
Created Docker image for the respective docker file using:
docker build -t [filename] .
Tried to start the container using: docker run -itd --name my-con -p 8080:8080
but the container is not starting & the container is listed in stopped container
Cn any one help me fixing this issue
Thanks.
try this in last line:
CMD ["/usr/local/tomcat/bin/catalina.sh","run"]
I am struggling with permissions on docker volume, I get access denied for writing.
This is a small part of my docker file
FROM ubuntu:18.04
RUN apt-get update && \
apt-get install -y \
apt-transport-https \
build-essential \
ca-certificates \
curl \
vim && \............
RUN curl -sL https://deb.nodesource.com/setup_8.x | bash - && apt-get install -y nodejs
# Add non-root user
ARG USER=user01
RUN useradd -Um -d /home/$USER -s /bin/bash $USER && \
apt install -y python3-pip && \
pip3 install qrcode[pil]
#Copy that startup.sh into the scripts folder
COPY /scripts/startup.sh /scripts/startup.sh
#Making the startup.sh executable
RUN chmod -v +x /scripts/startup.sh
#Copy node API files
COPY --chown=user1 /node_api/* /home/user1/
USER $USER
WORKDIR /home/$USER
# Expose needed ports
EXPOSE 3000
VOLUME /data_storage
ENTRYPOINT [ "/scripts/startup.sh" ]
Also a small part of my startup.sh
#!/bin/bash
/usr/share/lib/provision.py --enterprise-seed $ENTERPRISE_SEED > config.json
Then my docker builds command:
sudo docker build -t mycontainer .
And the docker run command:
sudo docker run -v data_storage:/home/user01/.client -p 3008:3000 -itd mycontainer
The problem I have is that the Python script will create the folder: /home/user01/.client and it will copy some files in there. That always worked fine. But now I want those files, which are data files, in a volume for backup porpuses. And as I am mapping with my volume I get permissions denied, so the python script is not able to write anymore.
So at the end of my dockerfile this instructions combined with the mapping in the docker run command give me the permission denied:
VOLUME /data_storage
Any suggestions on how to resolve this? some more permissions needed for the "user01"?
Thanks
I was able to resolve my issue by removing the "volume" command from the dockerfile and just doing the mapping at the moment of executing the docker run:
sudo docker run -v data_storage:/home/user01/.client -p 3008:3000 -itd mycontainer
i want to run a specific version of phpUnit WITHIN a docker container. This container will use a specific version of php. i.e
php:5.6-apache
Its a Laravel application. i have install phpunit via composer on the hostfiles and then used the volume command to transfer this to the container.
my composer.json file has following entry:
"require-dev": {
"phpunit/phpunit": "^5.0"
},
This is my docker run command to run the test on my testdev container:
docker run --rm -it -v ~/Users/mow/Documents/devFolder/testdev:/app testdev_php "php ./vendor/bin/phpunit"
This returns the error:
exec: fatal: unable to exec php ./vendor/bin/phpunit: No such file or directory
i am unclear why it says this because te vendor directory is at the root of my site directory.
this is my dockerfile
FROM php:5.6-apache
ENV S6_OVERLAY_VERSION 1.11.0.1
RUN apt-get update && apt-get install -y \
libldap2-dev \
git \
--no-install-recommends \
&& rm -r /var/lib/apt/lists/* \
&& docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
&& docker-php-ext-install ldap \
&& docker-php-ext-install mysqli pdo pdo_mysql
#install xdebug
RUN git clone https://github.com/xdebug/xdebug.git \
&& cd xdebug \
&& git checkout tags/XDEBUG_2_5_5 \
&& phpize \
&& ./configure --enable-xdebug \
&& make \
&& make install
RUN a2enmod rewrite
COPY ./docker/rootfs /
COPY . /app
WORKDIR /app
ENTRYPOINT ["/init"]
I guess the real question is this: what is the correct way to run a phpUnit test within a docker container so that its subject to the php version within that container.
In the Entrypoint, you need to ran composer install to install the requisite packages that will be available in the docker container
without Dockerfile use this code in windows PowerShell :
docker run --rm -v ${pwd}:/app composer:latest require --dev phpunit/phpunit:^8
create composer container to install phpunit then remove the container.
note: in windows Command %cd% / in windows PowerShell ${pwd} / in linux $PWD
then Create new PHP container with copy all fills include phpuint feamework
docker run -d -p 80:80 --name my-php-apache -v ${pwd}:/var/www/html php:7.4.0-apache
to active autoload file, and testing please visit this Page