$ docker image build -t python-blog .
Step 1/5 : FROM ubuntu:16.04
---> 005d2078bdfa
Step 2/5 : RUN apt-get update -y && apt-get install -y python-pip python-dev
---> Using cache
---> 7c1fdabcc215
Step 3/5 : ADD . .
---> Using cache
---> 5e2784fac3bd
Step 4/5 : RUN pip install -r requirements.txt
---> Using cache
---> 7d038ff8d993
Step 5/5 : CMD ["/usr/bin/python3","run.py"]
---> Using cache
---> 24f691d13886
Successfully built 24f691d13886
Successfully tagged python-blog:latest
$ docker run -p 5000:5000 python-blog:latest
docker: Error response from daemon: OCI runtime create failed:
container_linux.go:349: starting container process caused "exec:
\"/usr/bin/python3\": stat /usr/bin/python3: no such file or
directory": unknown. ERROr[0005] error waiting for container: context
canceled
Dockerfile
FROM ubuntu:16.04
RUN apt-get update -y && \
apt-get install -y python-pip python-dev
ADD . .
RUN pip install -r requirements.txt
CMD ["/usr/bin/python3","run.py"]
Your Dockerfile, doesn't not specifically installs python3, ubuntu-16.04 by default selects python (2.7.12-1ubuntu0~16.04.11), that's why it fails to execute the CMD instruction which expects /usr/bin/python3 which does not exists.
you have to update your Dockerfile to specifically install python3 if you want to run your code with python3.
Related
I'm deploying NuxtJs project to live server but getting error
E: Unable to locate package tini
{"code":100,"message":"The command '/bin/sh -c apt-get update && apt-get install -y tini' returned a non-zero code: 100"}
The command '/bin/sh -c apt-get update && apt-get install -y tini' returned a non-zero code: 100
Build has failed!
Dockerfile:
FROM node:14.15.1
RUN apt-get update && apt-get install -y
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=TRUE
RUN apk add --no-cache su-exec
# create destination directory
RUN mkdir -p /usr/src/nuxt-app
WORKDIR /usr/src/nuxt-app
# update and install dependency
RUN apk update && apk upgrade
RUN apk add git
# copy the app, note .dockerignore
COPY . /usr/src/nuxt-app/
RUN npm install
RUN npm run build
EXPOSE 3000
ENV NUXT_HOST=127.0.0.1
ENV NUXT_PORT=3000
CMD \[ "npm", "start" \]
# Set any ENVs
ARG BASE_URL=${BASE_URL}
ARG BASE_URL_WITHOUT_API=${BASE_URL_WITHOUT_API}
ARG NUXT_ENV_BASE_URL=${NUXT_ENV_BASE_URL}
I wrote this Dockerfile for an os
FROM randomdude/gcc-cross-x86_64-elf
RUN apt-get update
RUN apt-get upgrade -y
RUN apt-get install -y nasm
RUN apt-get install -y xorriso
RUN apt-get install -y grup-pc-bin
RUN apt-get install -y grup-common
VOLUME /
WORKDIR /
and while running sudo docker build buildenv -t testos-buildenv
on the terminal i got this log
Sending build context to Docker daemon 2.048kB
Step 1/9 : FROM randomdude/gcc-cross-x86_64-elf
---> c7e17c42eb04
Step 2/9 : RUN apt-get update
---> [Warning] The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
---> Running in 32e48dbf4a9c
exec /bin/sh: exec format error
The command '/bin/sh -c apt-get update' returned a non-zero code: 1
this file is inside /home/user/Desktop/os-systems/test-os/buildenv
i need help to solve it
Of course..It is for x86.
It depends on what you want to do.
If you want use it on your os. You have to build an arm64 version image. You have to replace some x86 dependences in the original Dockerfile and re-build it.
This Dockerfile is mentioned by the base image's description you use.
If you want use a x86 image but just want to build it on your OS (arm64), then you could try to use buildx.
When I am inside the container, the following works:
pip uninstall -y -r <(pip freeze)
Yet when I try to do the same in my Dockerfile like this:
RUN pip uninstall -y -r <(pip freeze)
I get:
------
> [ 7/10] RUN pip uninstall -y -r <(pip freeze):
#11 0.182 /bin/sh: 1: Syntax error: "(" unexpected
------
executor failed running [/bin/sh -c pip uninstall -y -r <(pip freeze)]: exit code: 2
How do I re-write this command to make it happy?
Edit:
I am using this work around. Still interested in the one-liner answer however
RUN pip freeze > to_delete.txt
RUN pip uninstall -y -r to_delete.txt
The default shell for RUN is sh which looks not compatiable with above command.
You could change the shell for RUN to bash to make it work.
Dockerfile:
FROM python:3
SHELL ["/bin/bash", "-c"]
RUN pip install pyyaml
RUN pip uninstall -y -r <(pip freeze)
Execution:
$ docker build -t abc:1 .
Sending build context to Docker daemon 5.12kB
Step 1/4 : FROM python:3
---> da24d18bf4bf
Step 2/4 : SHELL ["/bin/bash", "-c"]
---> Running in da64b8004392
Removing intermediate container da64b8004392
---> 4204713810f9
Step 3/4 : RUN pip install pyyaml
---> Running in 17a91e8cc768
Collecting pyyaml
Downloading PyYAML-5.4.1-cp39-cp39-manylinux1_x86_64.whl (630 kB)
Installing collected packages: pyyaml
Successfully installed pyyaml-5.4.1
WARNING: You are using pip version 20.3.3; however, version 21.2.4 is available.
You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command.
Removing intermediate container 17a91e8cc768
---> 1e6dba7439ac
Step 4/4 : RUN pip uninstall -y -r <(pip freeze)
---> Running in 256f7194350c
Found existing installation: PyYAML 5.4.1
Uninstalling PyYAML-5.4.1:
Successfully uninstalled PyYAML-5.4.1
Removing intermediate container 256f7194350c
---> 10346fb83333
Successfully built 10346fb83333
Successfully tagged abc:1
I have created a docker file with the following:
FROM python:3.9.2
MAINTAINER KSMC
RUN apt-get update -y && apt-get install -y python3-pip python-dev
WORKDIR /Users/rba/Documents/Projects/DD/DD-N4
RUN pip3 install -r requirements.txt
ENTRYPOINT ["python3"]
CMD ["main.py"]
My python code is in main.py , my python version is 3.9.2 and all my python code, requirements.txt and docker file are in the location /Users/rba/Documents/Projects/DD/DD-N4. Upon trying to create docker image using:
docker build -t ddn4image .
I am getting the following error:
#8 1.547 ERROR: Could not open requirements file: [Errno 2] No such file or directory: 'requirements.txt'
------ executor failed running [/bin/sh -c pip3 install -r requirements.txt]: exit code: 1
Can someone point out what is causing this?
You forgot to do a COPY statement.
Before you run RUN pip3 install -r requirements.txt, just put the following line
COPY . .
You need to do this because your local files need to be copied into the docker image build, so when your container is created, the files will exists on it.
Read the docs about COPY at docker docs.
Hint
Remove the ENTRYPOINT statement and use
CMD ["python3", "main.py"]
Here it is a good explanation about ENTRYPOINT and CMD difference.
So, after building out a pipeline, I realized I will need some custom libraries for a python script I will be pulling from SCM. To install Jenkins in Docker, I used the following tutorial:
https://jenkins.io/doc/book/installing/
Like so:
docker run \
-u root \
--rm \
-d \
-p 8080:8080 \
-p 50000:50000 \
-v jenkins-data:/var/jenkins_home \
-v /var/run/docker.sock:/var/run/docker.sock \
jenkinsci/blueocean
Now, I will say I'm not a Docker guru, but I'm aware the Dockerfile allows for passing in library installs for Python. However, because I'm pulling the docker image from dockerhub, I'm not sure if it's possible to add a "RUN pip install " as an argument. Maybe there is an alternate approach someone may have.
Any help is appreciated.
EDIT 1: Here's the output of the first commenter's recommendation:
Step 1/6 : FROM jenkinsci/blueocean
---> b7eef16a711e
Step 2/6 : USER root
---> Running in 150bba5c4994
Removing intermediate container 150bba5c4994
---> 882bcec61ccf
Step 3/6 : RUN apt-get update
---> Running in 324f28f384e0
/bin/sh: apt-get: not found
The command '/bin/sh -c apt-get update' returned a non-zero code: 127
Error:
/bin/sh: apt-get: not found
The command '/bin/sh -c apt-get update' returned a non-zero code: 127
Observation:
This error comes when the container that you want to run is not Debian based, hence does not support 'apt'.
To resolve this, we need to find out which package manager it utilizes.
In my case it was: 'apk'.
Resolution:
Replace 'apt-get' with 'apk' in your Dockerfile. (If this does not work you can try 'yum' package manager as well).
Command in your Dockerfile should look like:
RUN apk update
You can create a Dockerfile
FROM jenkins:latest
USER root
RUN apt-get update
RUN apt-get install -y python-pip
# Install app dependencies
RUN pip install --upgrade pip
You can build the custom image using
docker build -t jenkinspython .
Similar to what Hemant Sing's answer, but 2 slightly different things.
First, create a unique directory: mkdir foo
"cd" to that directory and run:
docker build -f jenkinspython .
Where jenkinspython contains:
FROM jenkins:latest
USER root
RUN apt-get update
RUN apt-get install -y python-pip
# Install app dependencies
RUN pip install --upgrade pip
Notice that my change has -f, not -t. And notice that the build output does indeed contain:
Step 5/5 : RUN pip install --upgrade pip
---> Running in d460e0ebb11d
Collecting pip
Downloading https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl (1.3MB)
Installing collected packages: pip
Found existing installation: pip 9.0.1
Not uninstalling pip at /usr/lib/python2.7/dist-packages, outside environment /usr
Successfully installed pip-18.0
Removing intermediate container d460e0ebb11d
---> b7d342751a79
Successfully built b7d342751a79
So now that the image has been built (in my case, b7d342751a79), fire it up and verify that pip has indeed been updated:
$ docker run -it b7d342751a79 bash
root#9f559d448be9:/# pip --version
pip 18.0 from /usr/local/lib/python2.7/dist-packages/pip (python 2.7)
So now your image has pip installed, so then you can feel free to pip install whatever crazy packages you need :)