How can I run TWO Docker images in a SINGLE Container?

Question

I want to create a Single Docker Container with PHP Image & Apache Image, here is my dockerfile.

Docker File Name: single-container.dockerfile

# PHP image from docker hub
FROM php:7.2-cli


# Apache image from docker hub
FROM httpd:2.4

# public-html is path for my local codebase
COPY ./public-html/ /usr/local/apache2/htdocs/

In docker CLI when I run this command: docker build -f single-container.dockerfile . -t mysinglecontainer:latest

I'm getting below error.

Please advice, what are the changes needs to modify?

As you know this is how running containers looks like: Dockerfile > Build Image > Run Container. Outcome of single docker file will be one container,but you can use multi-step build to make it optimized. Here: https://docs.docker.com/develop/develop-images/multistage-build/ — Hassan Murtaza, Sep 18 '19 at 10:49
Possible duplicate of [Docker: Combine multiple images](https://stackoverflow.com/questions/27214757/docker-combine-multiple-images) — David Maze, Sep 18 '19 at 21:15

score 5 · Answer 1 · answered Sep 18 '19 at 10:43

5

move the . to the end

docker build -f httpd.Dockerfile -t mysinglecontainer:latest .

be sure to use the correct Dockerfile name also in your command the name is single-container.dockerfile

so the command is:

docker build -f single-container.dockerfile -t mysinglecontainer:latest .

answered Sep 18 '19 at 10:43

LinPy

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Yes, made the changes – Yogi Ghorecha Sep 18 '19 at 11:36
I run this command: docker build -f single-container.dockerfile -t mysinglecontainer:latest . it works fine but at the end I got this error: `Step 3/3 : COPY ./public-html/ /usr/local/apache2/htdocs/ COPY failed: stat /var/lib/docker/tmp/docker-builder162671660/public-html: no such file or directory` – Yogi Ghorecha Sep 18 '19 at 11:39
I am starting to think that you are missundertanding what multistage build do .......... – LinPy Sep 18 '19 at 11:46
This doesn't answer my questions. I need 1 container which has PHP & Apache both. and one single image with PHP & Apache when I run `docker images` I need only one image, after running above code, I have got 2 separate images for PHP & Apache. – Yogi Ghorecha Sep 18 '19 at 11:51
please understand first what multistage do, https://docs.docker.com/develop/develop-images/multistage-build/ . i was trying to help you get the concept . to run the both you need to install one of the service manually using dockerfile....... – LinPy Sep 18 '19 at 11:54
1

understand the document, and I found the solution, in single dockerfile, I called PHP & Apache & it worked. – Yogi Ghorecha Sep 19 '19 at 08:29

score 1 · Accepted Answer · answered Sep 19 '19 at 08:42

Found the solution

Here is my Github URL: https://github.com/yogig/dockercron/

FROM php:7.2-fpm-alpine

LABEL maintainer="xxx@xxx.de" \
      muz.customer="xxx" \
      muz.product="xxx" \
      container.mode="development"

#https://pkgs.alpinelinux.org/packages
RUN apk add --no-cache --virtual .deps autoconf tzdata build-base libzip-dev mysql-dev gmp-dev \
            libxml2-dev libpng-dev zlib-dev freetype-dev jpeg-dev icu-dev openldap-dev libxslt-dev &&\
    docker-php-ext-install zip xml mbstring json intl gd pdo pdo_mysql iconv soap \
                           dom gmp fileinfo sockets bcmath mysqli ldap xsl &&\
    echo 'date.timezone="Europe/Berlin"' >> "${PHP_INI_DIR}"/php.ini &&\
    cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime &&\
    echo 'Europe/Berlin' > /etc/timezone &&\
    curl -s https://www.phing.info/get/phing-latest.phar > /bin/phing &&\
    chmod a+x /bin/phing &&\
    ln -s /bin/phing /usr/local/bin/phing &&\
    ln -s /bin/phing /usr/local/phing &&\
    ln -s /bin/phing /usr/bin/phing &&\
    apk del .deps &&\
    apk add --no-cache libzip mysql libxml2 libpng zlib freetype jpeg icu gmp git subversion libxslt openldap \
            apache2 apache2-ldap apache2-proxy libreoffice openjdk11-jre ghostscript msttcorefonts-installer \
            terminus-font ghostscript-fonts &&\
    ln -s /usr/lib/apache2 /usr/lib/apache2/modules &&\
    ln -s /usr/sbin/httpd /etc/init.d/httpd &&\
    update-ms-fonts

# copy crontabs for root user
COPY crontab.txt /etc/crontabs/root

#https://github.com/docker-library/httpd/blob/3ebff8dadf1e38dbe694ea0b8f379f6b8bcd993e/2.4/alpine/httpd-foreground
#https://github.com/docker-library/php/blob/master/7.2/alpine3.10/fpm/Dockerfile
CMD ["/bin/sh", "-c", "rm -f /usr/local/apache2/logs/httpd.pid && httpd -DBACKGROUND && php-fpm"]

will install PHP Alpine image

(1) FROM php:7.2-fpm-alpine

Configuration for Apache

(2) apk add --no-cache libzip mysql libxml2 libpng zlib freetype jpeg icu gmp git subversion libxslt openldap \
            apache2 apache2-ldap apache2-proxy libreoffice openjdk11-jre ghostscript msttcorefonts-installer \
            terminus-font ghostscript-fonts

Last: In Docker CLI, I run the command docker-compose up and now in my Single Container, both PHP & Apache is running successfully.

Note: To see content of docker-compose.yaml file, visit https://github.com/yogig/dockercron

How can I run TWO Docker images in a SINGLE Container?

2 Answers2