I want to modify the core_pattern when building docker image, and my docker file is like this: FROM centos:7 RUN echo "core-%e" > /proc/sys/kernel/core_pattern Then I ran docker build and I get an error /bin/sh: /proc/sys/kernel/core_pattern: Read-only file system Anybody…
I am learning how to use ARG and ENV in Dockerfiles. I have this simple Dockerfile: ARG my_arg ARG other_arg=other_default FROM centos:7 ENV MY_ENV $my_arg ENV OTHER_ENV $other_arg CMD echo "$MY_ENV $OTHER_ENV" When I build it: docker build --build-arg my_arg=my_value…
I have tried to build the below Dockerfile, for the first time it built successfully but after that it is throwing the mentioned error. I am mentioning the Dockerfile and error below. Dockerfile: FROM alpine RUN apk add --update redis…
I have a multistage Dockerfile which copies some parts from the first image to the second one, which always fails with this line COPY --from=react-builder /app/build /var/www with this error Step 17/22 : COPY --from=react-builder /app/build /var/www COPY failed: stat…
I'm new to Docker and currently and I'm working on the dokernizing some apps. Structure of project : -PlayProject -------app ----------controllers ----------models ----------views -------ci -------conf -------project -------public ----------css ----------js ----------img ----------fonts -------sbt-cache -------src -------target -------front ------------header (npm folder) ------------footer (npm…
I would like to have sbt in my docker image. I created a Dockerfile base on centos:centos8 image: FROM centos:centos8 ENV SCALA_VERSION 2.13.1 ENV SBT_VERSION 0.13.18 RUN yum install -y epel-release RUN yum update -y && yum install -y wget…
Dockerfile: # pull official base image FROM alpine:edge RUN apk update && apk add build-base libzmq musl-dev python3 python3-dev zeromq-dev mariadb-dev postgresql-dev RUN pip3 install pyzmq # set work directory WORKDIR /usr/src/myproj COPY ./requirements.txt ./requirements.txt # install dependencies RUN pip3…
I need an example of setting up MySQL and phpmyadmin on a docker compose file.
Currently I am creating a virtual environment in the first stage. Running command pip install -r requirements.txt , which install executables in /venv/bin dir. In second stage i am copying the /venv/bin dir , but on running the python app…
In a given Dockerfile, I want to set a variable based on content of another ENV variable (which is injected into the container beforehand, or defined within the Dockerfile) I'm looking at something like this FROM centos:7 ENV ENABLE_REMOTE_DEBUG "true"…