[Unit]
Description=Certbot certificate renew trigger
After=network-online.target
Wants=network-online.target

[Service]
Environment="VOLUME_ROOT=/home/admin/mattermost-docker"
Type=oneshot
ExecStart=/usr/bin/docker run --rm --name certbot --network mattermost \
                              -v '${VOLUME_ROOT}/certs/etc/letsencrypt:/etc/letsencrypt' \
                              -v '${VOLUME_ROOT}/certs/var/lib/letsencrypt:/var/lib/letsencrypt' \
                              -v shared-webroot:/webroot \
                              certbot/certbot renew --webroot-path /webroot

[Install]
WantedBy=multi-user.target