dockerfile Archives - IT Nursery

I have installed docker on CentOS 7 by running following commands, curl -sSL https://get.docker.com/ | sh systemctl enable docker && systemctl start docker ...

May 31, 2022
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docker, Programming

IT Nursery

How to pass arguments to a Dockerfile?

I am using RUN instruction within a Dockerfile to install a rpm RUN yum -y install samplerpm-2.3 However, I want to pass the ...

May 27, 2022
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docker, Programming

IT Nursery

How do I Docker COPY as non root?

While building a Docker image, how do I COPY a file into the image so that the resulting file is owned by a ...

May 27, 2022
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docker, Programming

IT Nursery

Multiple RUN vs. single chained RUN in Dockerfile, which is better?

Dockerfile.1 executes multiple RUN: FROM busybox RUN echo This is the A > a RUN echo This is the B > b RUN ...

May 27, 2022
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How to name Dockerfiles

I’m unsure of how to name Dockerfiles. Many on GitHub use Dockerfile without a file extension. Do I give them a name and ...

May 26, 2022
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What is the point of WORKDIR on Dockerfile?

I’m learning Docker. For many times I’ve seen that Dockerfile has WORKDIR command: FROM node:latest RUN mkdir -p /usr/src/app WORKDIR /usr/src/app COPY package.json ...

May 25, 2022
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