I'm currently having an issue with this booting up - Had a couple of issues getting to this point but all covered by what others have got.
Currently I am having it crash after Pi-hole blocking is enabled:
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
::: Testing DNSmasq config: ::: Testing PHP-FPM config: ::: Testing NGINX config: ::: All config checks passed, starting ...
::: Docker start setup complete - beginning s6 services
:::
::: Neutrino emissions detected...
:::
::: Pulling source lists into range... done!
:::
::: Getting raw.githubusercontent.com list... done
::: Status: Success (OK)
::: List updated, transport successful!
::: Getting mirror1.malwaredomains.com list... done
::: Status: Not modified
::: No changes detected, transport skipped!
::: Getting sysctl.org list... done
::: Status: Not modified
::: No changes detected, transport skipped!
::: Getting zeustracker.abuse.ch list... done
::: Status: Success (OK)
::: List updated, transport successful!
::: Getting mirror1.malwaredomains.com list... done
::: Status: Not modified
::: No changes detected, transport skipped!
::: Getting sysctl.org list... done
::: Status: Not modified
::: No changes detected, transport skipped!
::: Getting zeustracker.abuse.ch list... done
::: Status: Success (OK)
::: List updated, transport successful!
::: Getting s3.amazonaws.com list... done
::: Status: Not modified
::: No changes detected, transport skipped!
::: Getting s3.amazonaws.com list... done
::: Status: Not modified
::: No changes detected, transport skipped!
::: Getting hosts-file.net list... done
::: Status: Not modified
::: No changes detected, transport skipped!
:::
::: Aggregating list of domains... done!
::: Formatting list of domains to remove comments.... done!
::: 136851 domains being pulled in by gravity...
::: Removing duplicate domains.... done!
::: 113087 unique domains trapped in the event horizon.
:::
::: Adding adlist sources to the whitelist... done!
::: Whitelisting 6 domains... done!
::: Exact blocked domains: 0
::: No wildcards used!
::: Formatting domains into a HOSTS file... done!
:::
::: Cleaning up un-needed files... done!
:::
::: Refresh lists in dnsmasq...s6 service not found for dnsmasq, exiting...
done!
netstat: /proc/net/tcp6: No such file or directory
::: DNS service is running
::: Pi-hole blocking is Enabled
killall: dnsmasq: no process killed
[cont-init.d] 20-start.sh: exited 1.
[cont-finish.d] executing container finish scripts...
[cont-finish.d] done.
[s6-finish] syncing disks.
[s6-finish] sending all processes the TERM signal.
[s6-finish] sending all processes the KILL signal and exiting.
Any pointers / ideas what could be going wrong would be appreciated .