[Unit]
Description=My Nginx Server - %i
Requires=docker.service
After=docker.service

[Service]
ExecStartPre=-/usr/bin/docker kill nginx-%i
ExecStartPre=-/usr/bin/docker rm nginx-%i
ExecStartPre=/usr/bin/docker pull nginx:latest
ExecStart=/usr/bin/docker run --name mynginx-%i -p 80:80 nginx:latest

[X-Fleet]
Conflicts=nginx@*.service