108 lines
4.3 KiB
Markdown
108 lines
4.3 KiB
Markdown
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## Pi-hole with cloudflared DoH (DNS-Over-HTTPS)
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This example provides a base setup for using [Pi-hole](https://docs.pi-hole.net/) with the [cloudflared DoH](https://docs.pi-hole.net/guides/dns/cloudflared/) service.
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More details on how to customize the installation and the compose file can be found in [Docker Pi-hole documentation](https://github.com/pi-hole/docker-pi-hole).
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Project structure:
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```
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.
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├── .env
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├── docker-compose.yaml
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└── README.md
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```
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[_docker-compose.yaml_](docker-compose.yaml)
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``` yaml
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services:
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pihole:
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image: pihole/pihole:latest
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ports:
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- "53:53/tcp"
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- "53:53/udp"
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- "67:67/udp"
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- "8080:80/tcp"
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- "8443:443/tcp"
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...
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cloudflared:
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image: visibilityspots/cloudflared
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ports:
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- "5054:5054/tcp"
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- "5054:5054/udp"
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...
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```
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## Configuration
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### .env
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Before deploying this setup, you need to configure the following values in the [.env](.env) file.
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- TZ ([time zone](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones))
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- PIHOLE_PW (admin password)
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- PIHOLE_ROUTER_IP (only needed for activated conditional forwarding)
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- PIHOLE_NETWORK_DOMAIN (only needed for activated conditional forwarding)
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- PIHOLE_HOST_IP (IPv4 address of your Pi-hole - needs to by static)
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- PIHOLE_HOST_IPV6 (IPv6 address of your Pi-hole - can be empty if you only use IPv4)
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### Conditional forwarding (optional, default: enabled)
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If you would like to disable conditional forwarding, delete the environment variables starting with "CONDITIONAL_FORWARDING"
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### Container DNS (optional, default: disabled)
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In the docker-compose file, dns is added as a comment. To enable dns remove '#' in front of the following lines:
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``` yaml
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dns:
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- 127.0.0.1 # "Sets your container's resolve settings to localhost so it can resolve DHCP hostnames [...]" - github.com/pi-hole/docker-pi-hole
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- 1.1.1.1 # Backup server
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```
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## Deploy with docker-compose
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When deploying this setup, the admin web interface will be available on port 8080 (e.g. http://localhost:8080/admin).
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``` shell
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$ docker-compose up -d
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Starting cloudflared ... done
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Starting pihole ... done
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```
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## Expected result
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Check containers are running and the port mapping:
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```
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$ docker ps
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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afcf5ca4214c pihole/pihole:latest "/s6-init" 3 seconds ago Up 3 seconds (health: starting) 0.0.0.0:53->53/udp, 0.0.0.0:53->53/tcp, 0.0.0.0:67->67/udp, 0.0.0.0:8080->80/tcp, 0.0.0.0:8443->443/tcp pihole
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dfd49ab7a372 visibilityspots/cloudflared "/bin/sh -c '/usr/lo…" 4 seconds ago Up 3 seconds (health: starting) 0.0.0.0:5054->5054/tcp, 0.0.0.0:5054->5054/udp cloudflared
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```
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Navigate to `http://localhost:8080` in your web browser to access the installed Pi-hole web interface.
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Stop the containers with
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``` shell
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$ docker-compose down
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# To delete all data run:
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$ docker-compose down -v
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```
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## Troubleshooting
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### - Starting / Stopping pihole-FTL loop:
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Sometimes, it can happen that there occurs a problem starting pihole-FTL.
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I personally had this issue when adding this line to the shared volumes:
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```
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- "/pihole/pihole.log:/var/log/pihole.log"
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```
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To fix this issue, I found this [issue](https://github.com/pi-hole/docker-pi-hole/issues/645#issuecomment-670809672),
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which suggested adding an empty file (`touch /pihole/pihole.log`) to prevent it from creating a directory.
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The directory would not allow starting pihole-FTL and result in something like this:
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```
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# Starting pihole-FTL (no-daemon) as root
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# Stopping pihole-FTL
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...
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```
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If you created an empty file, you may also check the ownership to prevent permission problems.
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### - Installing on Ubuntu may conflict with `systemd-resolved` - see [Installing on Ubuntu](https://github.com/pi-hole/docker-pi-hole#installing-on-ubuntu) for help.
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### - Environment variables are version-dependent
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Environment variables like "CONDIIONAL_FORWARDING*" and "DNS1" are deprecated and replaced by e.g. "REV_SERVER*" and "PIHOLE_DNS" in version 5.8+.
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Current information about environment variables can be found here: https://github.com/pi-hole/docker-pi-hole
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