refactor: change Cloudlfare DDNS config to env-based

cfddns/.env.example

@@ -0,0 +1,15 @@
+CLOUDFLARE_API_TOKEN=YOUR_CLOUDFLARE_API_TOKEN
+DOMAINS=example.com,dns.example.com,mc.example.com,auth.example.com,ssh.example.com
+IP4_DOMAINS=
+IP6_DOMAINS=
+IP4_PROVIDER=cloudflare.trace
+IP6_PROVIDER=none # change if you want to update AAAA
+UPDATE_CRON=@every 5m
+UPDATE_ON_START=true
+DELETE_ON_STOP=false
+DELETE_ON_FAILURE=true
+TTL=1
+PROXIED=!is(dns.example.com) && !is(mc.example.com) && !is(ssh.example.com)
+EMOJI=true
+UPTIMEKUMA=https://uptime-kuma.example.com/api/push/AsaSDFGFkfklaFALSKffkfFKfkfkfkFK?status=up&msg=OK&ping=
+REJECT_CLOUDFLARE_IPS=true

cfddns/compose.yaml

@@ -6,8 +6,25 @@ services:
     security_opt:
       - no-new-privileges:true
     network_mode: 'host'
+    # https://github.com/timothymiller/cloudflare-ddns#-quick-start
     environment:
-      - PUID=1000
-      - PGID=1000
-    volumes:
-      - ./config.json:/config.json
+      - CLOUDFLARE_API_TOKEN=${CLOUDFLARE_API_TOKEN:?Cloudflare API token is required}
+      - DOMAINS=${DOMAINS:-}
+      - IP4_DOMAINS=${IP4_DOMAINS:-}
+      - IP6_DOMAINS=${IP6_DOMAINS:-}
+      - IP4_PROVIDER=${IP4_PROVIDER:-cloudflare.trace}
+      - IP6_PROVIDER=${IP6_PROVIDER:-none}
+      - UPDATE_CRON=${UPDATE_CRON:-@every 5m}
+      - UPDATE_ON_START=${UPDATE_ON_START:-true}
+      - DELETE_ON_STOP=${DELETE_ON_STOP:-false}
+      - DELETE_ON_FAILURE=${DELETE_ON_FAILURE:-true}
+      - TTL=${TTL:-1} # 1=auto
+      # to proxy only "dns.example.com" and "wfs.example.com" use "!is(dns.domain.com) && !is (wfs.domain.com)"
+      - PROXIED=${PROXIED:-true}
+      - EMOJI=${EMOJI:-true}
+      - UPTIMEKUMA=${UPTIMEKUMA:-}
+      - HEALTHCHECKS=${HEALTHCHECKS:-}
+      - REJECT_CLOUDFLARE_IPS=${REJECT_CLOUDFLARE_IPS:-true}
+      # volumes:
+      # Prefer using environment variables for configuration, config.json legacy support
+      # - ./config.json:/config.json