Questions tagged [dockerfile]
For questions about Dockerfiles - text files containing instructions to build Docker container images.
127
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12
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How to add packages to the micro and mini suse base images
I want to install tar and zstd packages to the base image of registry.suse.com/bci/bci-minimal:15.5 and registry.suse.com/bci/bci-micro:15.5 (taken from https://registry.suse.com/) but none of the ...
- 123
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0
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7
views
Ensuring Ubuntu docker image will not kill the process under heavy load
We run our app as a daemon (or some times with nohup command) so that Ubuntu will not kill this process under heavy processor and memory load. However, we want to dockerize (on Ubuntu 20.04 docker ...
- 141
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0
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36
views
Unable to build multi architecture docker image
I want to built a docker image on my Intel laptop. The image will be deployed on both x86/x64 and arm64 hosts. The docker file uses ubuntu:20.04 base image. I tried building the image with following ...
- 141
0
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0
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42
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Docker build reset file ownership after each layer built
I've noticed a new strange thing where file permissions reset while building a docker image.
Consider the following Dockerfile:
FROM ubuntu
RUN mkdir -p /home/user && \
useradd -l -u ...
- 101
0
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0
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14
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node_modules is several orders of magnitude bigger inside the container compare to host machine
I have a simple Next project in Docker following the common recommendations for small-size containers. Heres my Dockerfile:
FROM node:16-alpine as dependencies
WORKDIR /app
COPY package.json ./
COPY ...
- 101
0
votes
1
answer
36
views
Prevent docker to write inside container
I have an extracted container deployed on a shared storage, and want to launch this container locally. However, when I launch this container to run an application, it creates some temporary files ...
- 1
0
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0
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22
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How to run pytorch on gitlab-runner via docker?
I am learning gitlab ci/cd with a AI/Deep learning application in mind. But I wasn't sure how pytorch could be used in a gitlab-runner.
According to documentation:
The following multi-platform Docker ...
- 111
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18
views
Run Docker container with user who started it
I have two users on host machine usera, userb. I have added these users to the Dockerfile as below.
FROM ubuntu:latest
ENV DEBIAN_FRONTEND=noninteractive \
TERM=xterm
RUN groupadd -g 1111 ...
0
votes
0
answers
64
views
Cannot install packages with apt in docker image
I'm trying to create my own postgres image that is supposed to connect to a postgreSQL database hosted on AWS RDS, however, I'm having trouble connecting to that database as well as trouble installing ...
- 1
0
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0
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99
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Angular universal with docker giving bad gateway
I am trying to dockerizing a angular universal app using nginx, and it's giving me really hard time. It keeps saying 502 bad gateway and I am unable to wrap my head around it.
This is my Dockerfile
...
0
votes
1
answer
955
views
Docker push getting error EOF to private repository
I'm trying to push images to repo private, but it's getting error below. Before, it was working, but idk what happened...
PS C:\Users\user\aplication> docker push registry.apprepo.app/app:1.22.3
...
- 1
0
votes
0
answers
37
views
Problem with dockerfile base image
I am trying to run a dockerfile that has Centos 6.9 as base image. However, Docker has withdrawn support for Centos. The dockerfile begins with :
FROM centos:6.9 as resultsdbbase # base image
...
- 101
0
votes
0
answers
25
views
Unable to understand Docker error
I am new to Docker and trying to run a webserver written in Python. I am using Linux Debian running as virtual machine on a Windows host. I have mounted the required folder from my Windows host to the ...
- 101
1
vote
0
answers
36
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Opentelemetry-operator running as root on Openshift/Kubernetes
I need this opentelemetry-operator to run as non-root on the /,
https://github.com/open-telemetry/opentelemetry-operator/blob/main/autoinstrumentation/java/Dockerfile
I need to change the permission ...
- 11
1
vote
0
answers
43
views
Dockerfile & Docker compose for deploying a webpage with HTML and CSS at frontend and Nodejs and MongoDB at backend using Apache at EC2 [closed]
I need to deploy this application on EC2 instance using APACHE please suggest me docker compose and Docker file for this project in Github Project
Backend is on Nodejs and Mongo
Frontend is in HTML,...
1
vote
1
answer
554
views
Can't change ownership of folders and files in Docker containers
I am having these two dockerfiles which in both I am adding the command RUN chown -R www-data:www-data /var/www/html to change the ownership to www-data user. The containers seems to build ...
- 111
0
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1
answer
34
views
how to decrease the docker image layers latency during the image build step?
I am following the Microsoft document to create a custom image of vsts-agent on top of ubuntu and install the required capabilities.
Since our environment is not having internet enabled, we used ...
- 101
0
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0
answers
43
views
Deploying files contains in a git repo to a docker container
I have a stack deployed using a docker-compose file.
Some of the containers will need to retrieve and host files located in a git repo (gitlab), what is the best way to retrieve / copy files from the ...
- 344
2
votes
1
answer
578
views
Docker Compose: How do you build an image while running another container?
I'm trying to build a Nuxt 3 application using docker compose. However, I'm having trouble with docker compose and dockerfile configuration.
Context
To give background on the project that I'm working ...
- 21
0
votes
1
answer
888
views
Multistage docker build for Python distroless image
This is my Dockerfile for distroless image similar to this example
FROM python:3.9-slim AS build-venv
RUN python3 -m venv /venv
# other installation steps go here
RUN /venv/bin/pip install --upgrade ...
- 103
-1
votes
1
answer
151
views
How do I install BlackDuck on mac?
I am trying to scan container images using the blackdock scanning tool. Unfortunately, I couldn't find any free version to play around with; please provide guidance and the simplest way to scan the ...
0
votes
2
answers
129
views
How do I run a CI build in a docker image matching the current `Dockerfile` while being resource-aware?
Given a repository containing a Dockerfile that defines the build environment used by the CI pipeline as well as by the developer (e.g. as a Visual Studio Code devcontainer), the CI pipeline shall ...
- 101
0
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1
answer
4k
views
Docker warning about platform not matching the host platform
I have a Dockerfile that works on both mac and windows.
But when I create an actual container on mac, I always get a warning that says:
PS /Users/me/> docker run -it platformtest /bin/bash
WARNING:...
- 115
2
votes
0
answers
275
views
Run commands on docker container and sync automatically with host
I Dockerkized a MENN(Nextjs) stack App, now everything works fine. I run into issues when i need to install npm packages. let me first show you the structure
src/server/Dockerfile
FROM node:14-alpine
...
- 143
1
vote
0
answers
88
views
Access AWS Secret inside docker file
I have a docker file running on AWS that looks like the following:
FROM ubuntu:latest
RUN apt-get update
RUN apt-get install -y python3
RUN apt-get install -y git
RUN git init
RUN git clone https://&...
- 111
0
votes
1
answer
272
views
Buildkit failing arm builds with missing binaries even though they are in $PATH
A few of our developers recently got some M1 machines, I want to provide them with ARM compatible images and have set my sights on Buildkit.
I set up a podTemplate in Jenkins and run the build with ...
1
vote
3
answers
526
views
How do I create a Docker image from a container without configuration changes?
I am aware of two ways of creating Docker images:
Build the image using a Dockerfile
Use docker commit <container_id> against a running container with changes.
I find changing a Dockerfile ...
- 111
0
votes
1
answer
1k
views
Install a RPM from build context without copying it first
During dockerbuild, I'd like to install a (rather big) RPM from build context/host without copying it first into the image in order to keep my image small.
Ideally, there would be a way to read a file ...
- 23
0
votes
1
answer
1k
views
My Python application doesn't communicate with MySQL inside docker. Can someone help me?
The connection is not succeeding in docker. Look at my settings:
Dockerfile
FROM python:3.8.5-alpine
WORKDIR /app
COPY requirements.txt .
RUN python3 -m pip install --upgrade pip
RUN pip install -...
0
votes
2
answers
77
views
Specify image in Dockerfile based on building client platform/architecture
I have a somewhat specific, Swift-based problem.
It seems that none of the official Swift images on Dockerhub support the M1, and instead the only seemingly reliable arm64 Swift images are found at ...
- 101
4
votes
2
answers
9k
views
DNS resolution fails when container is started via docker-compose
I recently decided to try out windows containers and i am using my private minecraft server for that purpose (as a hobby project).
I have an image prepared, based on Windows Server Core 2022.
When i ...
1
vote
1
answer
909
views
Building a docker container with multiple conda envs
As a novice to the technology I have only a basic knowledge regarding how to build and deploy a docker so i was hoping someone could provide some help.
The situation is the following:
I need to create ...
- 11
1
vote
2
answers
275
views
Package installed using Dockerfile not available on Jenkins pipeline stage
I'm having sort of a weird problem with my Jenkins pipeline. I've defined a Dockerfile which installs some tools I need for my CI/CD pipeline, such as node, npm, sfdx, and sfpowerkit (a plugin for ...
0
votes
1
answer
725
views
PROXY is not working inside windows container
I'm using windows containers in windows 10. I've set proxy variables(HTTP_PROXY,HTTPS_PROXY) in environmental variable setup and using VPN. I also configured resources -> Proxies.
I was trying to ...
1
vote
0
answers
415
views
Redhat Nodejs-minimal yarn not found
Coming across a very odd issue here:
Whenever I try using a ubi8/nodejs-14-minimal base image, the build fails with /bin/sh: yarn not found.
I have installed yarn already by adding a Run npm install ...
- 43
5
votes
2
answers
338
views
Best Practice for writing DockerFile
I have mostly seen people using following type of pipeline steps(it varies, but in general this is the flow of steps I have observed)
Process: clone repo -> build -> test -> create docker ...
- 151
1
vote
1
answer
1k
views
Using access tokens on Dockerfile to clone repository: RUN command error
In a Dockerfile, I'm trying to clone several Gitlab repositories that are specified in a file, one per line, using an access token passed as an environment variable set in docker-compose.yml:
COPY my-...
- 121
0
votes
1
answer
84
views
Continuous Deployment with jenkins
I am a beginner in DevOps.
I created a continuous integration cycle using jenkins(docker image) and bitbucket.
I used a simple spring boot hello-world project and after CI i got an executable Jar.
I ...
- 105
0
votes
1
answer
5k
views
Having trouble with building Docker image
I'm trying to build a docker image for a software using docker build -t cytools .
Here is the output that I'm confused about:
[+] Building 0.0s (1/2) ...
- 3
2
votes
3
answers
8k
views
How can I get the Docker target platform inside the Build Environment / Dockerfile
I'm doing multi-platform builds with buildx and would like to know if there is a way to determine what platform is currently being build so I can avoid certain steps for certain environments.
For ...
- 123
0
votes
1
answer
46
views
is a secrets-provider-container a good idea?
I am looking for a way to provide secrets to a container running on Google Cloud Run responding to the following criteria:
secure
centralized & pulled based
free
simple
working with a team, with ...
- 101
1
vote
2
answers
330
views
Can I build docker image containing ARM executable when running docker build on non-ARM architecture?
I have built on an x86-based Windows laptop a Docker image to be run as a container on an ARM-based architecture (Raspberry Pi 4).
Due to ending up with an x86 executable when this is built in the ...
- 11
1
vote
0
answers
69
views
How to correctly copy a file when building an image on Docker Hub?
I have a fairly simple Dockerfile, which works locally. However, when I build it on Docker Hub I get the following error:
Starting build of index.docker.io/adius/tasklite:next...
Step 1/16 : from ...
- 111
2
votes
2
answers
16k
views
How to serve a custom index.html using the stock nginx docker image?
How do I serve static content from the default nginx docker image? Given:
root@mordor:~#
root@mordor:~# docker image ls nginx
REPOSITORY TAG IMAGE ID CREATED ...
0
votes
1
answer
570
views
How to navigate to an index.html with nginx?
This builds and runs without apparent error:
root@mordor:/home/nicholas/docker/nginx#
root@mordor:/home/nicholas/docker/nginx# docker exec -ti some-nginx bash
root@2c912aa5ce5c:/#
root@2c912aa5ce5c:/...
0
votes
2
answers
2k
views
How to copy HTML files to include into nginx?
How do I copy an index.html file into nginx?
root@mordor:/home/nicholas/docker/nginx#
root@mordor:/home/nicholas/docker/nginx# ll
total 12
drwxrwxr-x 2 nicholas nicholas 4096 Nov 13 16:18 ./
drwxrwxr-...
0
votes
2
answers
1k
views
Minecraft docker-container refuses connection
So I have this Dockerfile:
FROM openjdk:8u212-jre-alpine
LABEL maintainer "cowboy_patrick"
RUN apk add --no-cache -U \
openssl \
imagemagick \
lsof \
su-exec \
shadow \
bash \
...
2
votes
1
answer
42
views
why use multiple From instructions in multistage build?
I'm new to Docker, sorry if my question sounds dumb.
below is a dockerfile from a textbook shows how multistage build works:
FROM diamol/base AS build-stage
RUN echo 'Building...' &...
- 123
3
votes
2
answers
1k
views
Unable to build Image as it is asking some input
I am trying to create an Image which will run ftp server on centos. Dockerfile content is as below:
FROM centos
RUN \
yum update -y && \
yum install vsftpd -y
EXPOSE 21
CMD vsftpd -...
- 131
1
vote
1
answer
580
views
Grant access permission to file when mounting from host
Below is except of my docker-compose.yml file
I am trying to mount from host file inside the container, which works i.e. able to mount
but then I need to give it permission (my clumsy chown command, ...
- 11