How to prevent deletion .composer after restarting the containers?

Hello! The /home/devilbox/.composer directory is deleted after all containers are restarted. How can I use symfony/vardumper without re-installing composer after a restart? Should i use docker-compose rm -f?

~/devilbox$ docker-compose up -d
~/devilbox$ . shell.sh

devilbox@php-7.1.33 in /shared/httpd $ composer global require symfony/var-dumper

Changed current directory to /home/devilbox/.composer
Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2
Using version ^4.4 for symfony/var-dumper
./composer.json has been created
Loading composer repositories with package information
Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2
Updating dependencies (including require-dev)
Package operations: 4 installs, 0 updates, 0 removals
  - Installing symfony/polyfill-php80 (v1.22.1): Downloading (100%)         
  - Installing symfony/polyfill-php72 (v1.22.1): Downloading (100%)         
  - Installing symfony/polyfill-mbstring (v1.22.1): Downloading (100%)         
  - Installing symfony/var-dumper (v4.4.20): Downloading (100%)         
symfony/var-dumper suggests installing symfony/console (To use the ServerDumpCommand and/or the bin/var-dump-server script)
Writing lock file
Generating autoload files

devilbox@php-7.1.33 in /shared/httpd $ cd ~ && ls -la
total 52
drwxr-xr-x 1 devilbox devilbox 4096 Mar 21 10:38 ./
drwxr-xr-x 1 root     root     4096 Oct 24 03:24 ../
drwxr-xr-x 4 devilbox devilbox 4096 Mar 21 10:38 .composer/
drwxr-xr-x 1 devilbox devilbox 4096 Oct 24 03:57 .npm/
drwx------ 2 devilbox devilbox 4096 Jan 18 19:03 .ssh/
drwxr-xr-x 3 devilbox devilbox 4096 Mar 21 10:38 .subversion/
-rw-r--r-- 1 devilbox devilbox  220 Apr 18  2019 .bash_logout
-rw-r--r-- 1 devilbox devilbox 4235 Oct 24 03:57 .bashrc
-rw-r--r-- 1 devilbox devilbox  807 Apr 18  2019 .profile

devilbox@php-7.1.33 in ~ $ exit
logout

~/devilbox$ docker-compose stop
~/devilbox$ docker-compose rm -f
~/devilbox$ docker-compose up -d
~/devilbox$ . shell.sh

devilbox@php-7.1.33 in /shared/httpd $ cd ~ && ls -la
total 44
drwxr-xr-x 1 devilbox devilbox 4096 Mar 21 10:42 ./
drwxr-xr-x 1 root     root     4096 Oct 24 03:24 ../
drwxr-xr-x 1 devilbox devilbox 4096 Oct 24 03:57 .npm/
drwx------ 2 devilbox devilbox 4096 Jan 18 19:03 .ssh/
-rw-r--r-- 1 devilbox devilbox  220 Apr 18  2019 .bash_logout
-rw-r--r-- 1 devilbox devilbox 4235 Oct 24 03:57 .bashrc
-rw-r--r-- 1 devilbox devilbox  807 Apr 18  2019 .profile