CODEWITHSUNDEEP
dockerdockerfile
ashiquzzaman33
ashiquzzaman33

Reputation: 5741

Where execute RUN command from Dockerfile, Host or Intermediate container?

Let say this is an example of a Dockerfile

FROM ubuntu:12.04

MAINTAINER Kimbro Staken version: 0.1

RUN apt-get update && apt-get install -y apache2 && apt-get clean && rm -rf /var/lib/apt/lists/*

ENV APACHE_RUN_USER www-data
ENV APACHE_RUN_GROUP www-data
ENV APACHE_LOG_DIR /var/log/apache2

EXPOSE 80

CMD ["/usr/sbin/apache2", "-D", "FOREGROUND"]

Here is my question: Do I run RUN apt-get update on the host PC or create an intermediate container and run on that and then commit it.

Upvotes: 2

Views: 432

Answers (1)

Girdhar Sojitra
Girdhar Sojitra

Reputation: 678

It will create intermediate container, run all those commands specified using RUN and then commit it.

Upvotes: 2

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