Composer for DevKinsta

install-composer

## On you machine run:
docker exec -it devkinsta_fpm bash

## After you are logged change to /tmp
cd /tmp

## Install and configure composer
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('sha384', 'composer-setup.php') === '756890a4488ce9024fc62c56153228907f1545c228516cbf63f885e036d37e9a59d27d63f46af1d4d07ee0f76181c7d3') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php
php -r "unlink('composer-setup.php');"

## Move composer to location where linux can access it easily
mv /tmp/composer.phar /usr/local/bin/composer

## Make composer executable
chmod +x /usr/local/bin/composer

## Confirm installation
composer --version

For line 9, when checking the hash, make sure to use the hash for the current version. You can find that - actually lines 8-11 - here:
https://getcomposer.org/download/