How to Install Php Composer Inside a Docker Container

How to Install Php Composer Inside a Docker Container

I try to work out a way to create a dev environment using docker and laravel.

I have the following dockerfile:

FROM php:7.1.3-fpm

RUN apt-get update && apt-get install -y libmcrypt-dev \
    mysql-client libmagickwand-dev --no-install-recommends \
    && pecl install imagick \
    && docker-php-ext-enable imagick \
&& docker-php-ext-install mcrypt pdo_mysql
&& chmod -R o+rw laravel-master/bootstrap laravel-master/storage

Laravel requires composer to call composer dump-autoload when working with database migration. Therefore, I need composer inside the docker container.

I tried:

RUN curl -sS  | php -- \
--install-dir=/usr/bin --filename=composer

But when I call

docker-compose up
docker-compose exec app composer dump-autoload

It throws the following error:

rpc error: code = 13 desc = invalid header field value "oci runtime error: exec failed: container_linux.go:247: starting container process caused \"exec: \\\"composer\\\": executable file not found in $PATH\"\n"

I would be more than happy for advice how I can add composer to the PATH within my dockerfile or what else I can do to surpass this error.

Thanks for your support. Also: this is the gitub repository if you need to see the docker-compose.yml file or anything else.

6

9 Answers

In Dockerfile :

COPY --from=composer:latest /usr/bin/composer /usr/local/bin/composer
9

I can install composer adding this line on my test dockerfile:

# Install Composer
RUN curl -sS  | php -- --install-dir=/usr/local/bin --filename=composer

Here is the dockerfile:

FROM php:7.1.3-fpm

RUN apt-get update && apt-get install -y libmcrypt-dev \
    mysql-client libmagickwand-dev --no-install-recommends \
    && pecl install imagick \
    && docker-php-ext-enable imagick \
&& docker-php-ext-install mcrypt pdo_mysql

# Install Composer
RUN curl -sS  | php -- --install-dir=/usr/local/bin --filename=composer

It works for me, to test if the composer are installed i access to my container bash and execute:

composer --version
Composer version 1.6.5 2018-05-04 11:44:59
4

This is how i do it with Laravel 8.4 in 2021 to deploy it to CloudRun in Google Cloud:

Dockerfile

#Get Composer
FROM composer:2.0 as vendor

WORKDIR /app

COPY database/ database/
COPY composer.json composer.json
COPY composer.lock composer.lock

RUN composer install \
    --no-interaction \
    --no-plugins \
    --no-scripts \
    --no-dev \
    --prefer-dist

COPY . .
RUN composer dump-autoload

// some more custom steps like

FROM node:14.9 as frontend
...
FROM php:7.4-fpm
...

// Copy Composer dependencies

# Copy Composer dependencies
COPY --from=vendor app/vendor/ ./vendor/
COPY . .

// Some more custom steps

...

End of my Dockerfile to launch app with cleared optimized cache

# Run Laravel commands
RUN php artisan optimize:clear

CMD php artisan serve --host=0.0.0.0 --port=8080

EXPOSE 8080
1

Create an executable of your composer file using

RUN curl -sS  | php -- \
--install-dir=/usr/bin --filename=composer && chmod +x /usr/bin/composer 
1

We have basicly the same command running with the difference,

--install-dir=/usr/local/bin

Alternatively, you should add the composer bin files path to the $PATH variable.

export PATH=$PATH":/usr/bin"

I'd just like to suggest another way.

Dockerfile:

RUN php -r "readfile(');" | php -- --install-dir=/usr/bin/ --filename=composer
FROM php:7.3-fpm-alpine
RUN docker-php-ext-install pdo pdo_mysql
RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli

RUN php -r "readfile(');" | php -- --install-dir=/usr/bin/ --filename=composer
RUN apk update
RUN apk upgrade
RUN apk add bash
RUN alias composer='php /usr/bin/composer'

use composer in dockerfile using curl

RUN curl -sS  | php -- --install-dir=/usr/local/bin --filename=composer

Dockerfile

FROM 8.1.4-fpm

RUN apt-get update && apt-get install -y \
    git \
    curl \
    zip \
    unzip

RUN curl -sS  | php -- --install-dir=/usr/local/bin --filename=composer

WORKDIR /var/www

My problem solved. I just stopped firewalld service on system

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Elena Rostova
Author

Elena Rostova

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.