Get composer (php dependency manager) to run on a docker image build
Solution 1
Installing composer like this will avoid this problem:
RUN curl -o /tmp/composer-setup.php https://getcomposer.org/installer \
&& curl -o /tmp/composer-setup.sig https://composer.github.io/installer.sig \
# Make sure we're installing what we think we're installing!
&& php -r "if (hash('SHA384', file_get_contents('/tmp/composer-setup.php')) !== trim(file_get_contents('/tmp/composer-setup.sig'))) { unlink('/tmp/composer-setup.php'); echo 'Invalid installer' . PHP_EOL; exit(1); }" \
&& php /tmp/composer-setup.php --no-ansi --install-dir=/usr/local/bin --filename=composer --snapshot \
&& rm -f /tmp/composer-setup.*
Solution 2
I ran into this problem today.
What solved it for me was to use a different directory than the one that was defined in the image.
It seems like changes that are made to the directory during build process are discarded if the directory is defined as a volume.
Here's an example of my working Dockerfile
FROM richarvey/nginx-php-fpm
# Install dependencies
RUN apt-get update && \
apt-get install curl nano && \
curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
# Add update nginx config
COPY conf/nginx-site.conf /etc/nginx/sites-available/default.conf
# Bundle app source
COPY app/ /app
# Install app dependencies
RUN cd /app && \
composer install --no-interaction
EXPOSE 80
And then in conf/nginx-site.conf
I updated the root for my application (shortened for brevity)
server {
# ... the rest of your nginx config
root /app/public;
# ... the rest of your nginx config
}
Miquel Adell
Freelance programmer. I build websites. Good with WordPress, PHP/MySQL, Git and all that stuff. Very interested in dockerizing all the things.
Updated on June 07, 2021Comments
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Miquel Adell almost 3 years
TL;DR Can you point me to an example of a docker image that uses composer to handle PHP dependencies?
All my questions in this post are regarding composer the php dependency tool not docker-composer the successor of fig.
I'm trying to build my own docker image to run WordPress installed as a composer dependency.
I'm working on building a docker image using docker PHP image as a base and what I need to do is install composer and run a composer update command either on image creation time or on image build time (don't know if both would be ok).
I can run everything just fine by manually executing all the steps (running a docker image, bashing into it, and copying and pasting every step).
But when I put all that steps on a Dockerfile I don't get composer to write the files.
I've been trying to get a minimum failing example for some time but the one I've got is quite not minimum.
My test is composed of the following (links to the relevant github repos below)
Dockerfile
NFORMATION ~~~# # based on # https://hub.docker.com/r/richarvey/nginx-php-fpm/ # and # https://hub.docker.com/_/wordpress/ FROM php:7.0.2-apache MAINTAINER Miquel Adell <[email protected]> ENV WORDPRESS_VERSION 4.4.1 #~~~ DEPENDENCIES ~~~# # Add PHP repository to apt source RUN apt-get update \ && apt-get install -y \ libpng12-dev \ libjpeg-dev \ curl \ sed \ zlib1g-dev \ && docker-php-ext-install \ zip \ mysqli RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer #~~~ DIRS ~~~# WORKDIR /var/www/html/ #~~~ WORDPRESS ~~~# COPY files/composer.json composer.json ONBUILD RUN composer update
docker-compose.yml
wordpress: image: miqueladell/composed_wordpress_test links: - wordpress_db:mysql environment: - VIRTUAL_HOST=miqueladell.dev - WORDPRESS_DB_NAME=wordpress ports: - "80" wordpress_db: image: miqueladell/mariadb-utf8mb4 environment: - MYSQL_ROOT_PASSWORD=password
My test is as follows
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Build an image executing this command in a directory containing the Dockerfile pasted above
docker build -t miqueladell/composed_wordpress_test .
(no errors in the log)
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Use that image to build a container by running the following command in a directory containing the docker-compose.yml pasted above
docker-compose up
(no errors in the log)
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bash into the running container to be able to see if the files are there
docker exec -i -t miqueladellv2_wordpress_1 bash
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ls of /var/www/html
root@bff14367658b:/var/www/html# ls -al total 12 drwxr-xr-x 2 www-data www-data 4096 Jan 19 10:50 . drwxr-xr-x 5 root root 4096 Jan 19 10:50 .. -rw-r--r-- 1 root root 138 Jan 15 09:18 composer.json
You can see in step 4 that composer update seems to not have run at all.
I've tried using both
RUN composer update
and
ONBUILD RUN composer update
on Dockerfile with the same results.
If I go back to the previous step 4 of the test and I manually run composer update on the bash prompt of the docker container I get:
root@bff14367658b:/var/www/html# composer update Loading composer repositories with package information Updating dependencies (including require-dev) - Installing johnpbloch/wordpress-core-installer (0.2.1) Downloading: 100% - Installing johnpbloch/wordpress (4.4.1) Downloading: 100% Writing lock file Generating autoload files root@bff14367658b:/var/www/html# ls -al total 24 drwxr-xr-x 4 www-data www-data 4096 Jan 19 11:12 . drwxr-xr-x 6 root root 4096 Jan 19 11:12 .. -rw-r--r-- 1 root root 138 Jan 15 09:18 composer.json -rw-r--r-- 1 root root 3718 Jan 19 11:12 composer.lock drwxr-xr-x 4 root root 4096 Jan 19 11:12 vendor drwxr-xr-x 5 root root 4096 Jan 19 11:12 wordpress root@bff14367658b:/var/www/html#
which is exactly the output I was expecting on step 4
github links to the full files
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Lukas Lukac almost 7 yearsremember to use the Y flag: "apt-get install -Y ..."
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erkmene almost 7 yearsChecking the hash is really a nice touch here
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George Böhnisch over 4 yearsNice implementation. It should be noted that this installs the snapshot (--snapshot) version of composer.