[Unit]
Description=mastodon-redis.service
Wants=network-online.target
After=NetworkManager.service network.target network-online.target
RequiresMountsFor=/var/lib/containers/storage /var/run/containers/storage

# %E is "the XDG_CONFIG path"
# docker run --net internal_network --restart always --health-cmd CMD,redis-cli,ping -v ./redis:/data redis:7-alpine
[Service]
Environment=PODMAN_SYSTEMD_UNIT=%n 
Restart=on-failure
TimeoutStopSec=70
ExecStart=/usr/bin/podman run -d --name mastodon-redis --net internal_network --restart always --health-cmd CMD,redis-cli,ping -v mastodon-redis:/data redis:7
ExecStop=/usr/bin/podman stop mastodon-redis
ExecStopPost=/usr/bin/podman rm mastodon-redis
Type=oneshot
RemainAfterExit=yes

[Install]
WantedBy=default.target