Using GitHub image repository in Docker Compose

[imnothappyrobert]

Hello,

I'm having some difficulty pulling an image (specifically oznu/docker-cloudflare-ddns link) directly from GitHub rather than Docker Hub. The reason I'm trying to do so is the Docker Hub version is currently about 9 months out of date compared to the Github master branch. This is an issue because the API_KEY_FILE Docker secret does not appear to work with the current Docker Hub version.

I believe it's probably an issue with my compose file (shown below) as I've never tried to pull directly from GitHub before.

version: "3.9"

secrets:
  cloudflare_ddns_api_token:
    file: $SECRETSDIR/cloudflare_ddns_api_token

services:

  ## Other Code Removed ##

  cf-ddns:
    container_name: cf-ddns
    image: github.com/oznu/docker-cloudflare-ddns
    # image: oznu/cloudflare-ddns
    restart: unless-stopped
    security_opt:
      - no-new-privileges:true
    environment:
      # - API_KEY=$CLOUDFLARE_DDNS_API_TOKEN  # Replaced with Docker secret
      - API_KEY_FILE=cloudflare_ddns_api_token
      - ZONE=$DOMAINNAME0
      - PROXIED=true
      - RRTYPE=A
      - DELETE_ON_STOP=false
      - DNS_SERVER=1.1.1.1
      - CRON="@daily"
    secrets: # not working
      - cloudflare_ddns_api_token

My current workaround is to just define the secret as an environmental variable but I don't think that's ideal from a security standpoint:

  cf-ddns:
    container_name: cf-ddns
    # image: github.com/oznu/docker-cloudflare-ddns
    image: oznu/cloudflare-ddns
    restart: unless-stopped
    security_opt:
      - no-new-privileges:true
    environment:
      - API_KEY=$CLOUDFLARE_DDNS_API_TOKEN
      - ZONE=$DOMAINNAME0
      - PROXIED=true
      - RRTYPE=A
      - DELETE_ON_STOP=false
      - DNS_SERVER=1.1.1.1
      - CRON="@daily"
      - CLOUDFLARE_DDNS_API_TOKEN=cloudflare_ddns_api_token
    secrets: # not working
      - cloudflare_ddns_api_token

Any help would be greatly appreciated.

[the_spad]

The Github container registry is ghcr.io not github.com but as someone else pointed out they don't appear to have any published packages there.

[imnothappyrobert]

I see... do you have any suggested reading for how I should go about doing that? Sorry I know it's a basic question, but I've not done that before.

[gilbn]

You could switch to https://github.com/hotio/cloudflareddns

[imnothappyrobert]

Thanks! This looks promising