Looking for advice on how to get 'gravity-sync auto' to work in Pihole Docker instance. I can get 'gravity-sync push' to work but 'auto' throws back 'System has not been booted with systemd as init system (PID 1). Can't operate.' And that's after I've already installed systemd.
Here's my basic setup:
Pihole Docker (Openmediavault (Portainer (Pihole + macvlan))) = Primary 192.168.86.222
Pihole Raspi (bare metal) = Secondary 192.168.86.154
Here is my Docker Compose YML:
services:
pihole:
container_name: pihole
image: pihole/pihole:latest
ports:
- 55:53/tcp
- 55:53/udp
- 67:67/udp
- 83:80/tcp
environment:
- TZ:$TZ
- WEBPASSWORD:$PW
- DNSSEC=true
volumes:
- $DATA/pihole/config/etc-pihole:/etc/pihole
- $DATA/pihole/config/etc-dnsmasq.d:/etc/dnsmasq.d
cap_add:
- NET_ADMIN
restart: unless-stopped
networks:
macvlan:
ipv4_address: "192.168.86.222"
I'm able to install Gravity Sync on the raspi pretty easily using this guide, but installing in the Docker Pihole requires a whole process that involves doing a 'docker exec' into the container and installing the OpenSSH client and systemd, but it eventually worked. I got Gravity Sync to successfully install but I don't want to have to re-do this process everytime I restart the container (suggestions on how to avoid this are welcome). Per the above guide, I was able to modify the gravity-sync.conf files on each instance as below. I'm not totally confident I've done everything correctly.
Raspi Pihole gravity-sync.conf
# REQUIRED SETTINGS ##########################
REMOTE_HOST='192.168.86.154'
REMOTE_USER='pi'
# CUSTOM VARIABLES ###########################
# Pi-hole Folder/File Customization - Only need to be customized when using containers
LOCAL_PIHOLE_DIRECTORY='/etc/pihole' # Local Pi-hole data directory
REMOTE_PIHOLE_DIRECTORY='/etc/pihole' # Remote Pi-hole data directory
LOCAL_DNSMASQ_DIRECTORY='/etc/dnsmasq.d' # Local DNSMASQ/FTL data directory
REMOTE_DNSMASQ_DIRECTORY='/etc/dnsmasq.d' # Remote DNSMASQ/FTL data directory
LOCAL_FILE_OWNER='999:999' # Local file owner for Pi-hole
REMOTE_FILE_OWNER='999:999' # Remote file owner for Pi-hole
# Pi-hole Docker/Podman container name - Docker will pattern match anything set below
# LOCAL_DOCKER_CONTAINER='' # Local Pi-hole container name
REMOTE_DOCKER_CONTAINER='pihole' # Remote Pi-hole container name
# HIDDEN FIGURES #############################
# See https://github.com/vmstan/gravity-sync/wiki/Hidden-Figures
Docker Pihole gravity-sync.conf
# REQUIRED SETTINGS ##########################
REMOTE_HOST='192.168.86.222'
REMOTE_USER='root' #Using 'root' because no 'pi' user is detected when I 'id pi'
# CUSTOM VARIABLES ###########################
# Pi-hole Folder/File Customization - Only need to be customized when using containers
LOCAL_PIHOLE_DIRECTORY='/etc/pihole' # Local Pi-hole data directory
REMOTE_PIHOLE_DIRECTORY='/etc/pihole' # Remote Pi-hole data directory
LOCAL_DNSMASQ_DIRECTORY='/etc/dnsmasq.d' # Local DNSMASQ/FTL data directory
REMOTE_DNSMASQ_DIRECTORY='/etc/dnsmasq.d' # Remote DNSMASQ/FTL data directory
LOCAL_FILE_OWNER='999:999' # Local file owner for Pi-hole
REMOTE_FILE_OWNER='999:999' # Remote file owner for Pi-hole
# Pi-hole Docker/Podman container name - Docker will pattern match anything set below
LOCAL_DOCKER_CONTAINER='pihole' # Local Pi-hole container name
#REMOTE_DOCKER_CONTAINER='' # Remote Pi-hole container name
# HIDDEN FIGURES #############################
# See https://github.com/vmstan/gravity-sync/wiki/Hidden-Figures
If someone can share how they were able to get this to work or point out what I'm doing wrong, I would be eternally grateful. Thanks in advance =)
EDIT
One thing I think I may have done wrong with the gravity-sync.conf files is the user IDs. When following the guide, I simply used the '999:999' listed but I'm not sure that's correct. When I exec into my Pihole Docker, the user listed is 'root', and 'id root' shows root's user and group IDs are both '0'. So would I change the 'REMOTE_FILE_OWNER' to '0:0'?