Automatically update the A record of your cloudflare domains with your public IPv4 address

Changelog

• Added exclude as a list of strings to the config (see example), i.e. for excluding all the github pages IP addresses
• Added a all: bool to the config (see example), it will update all the values
• It will only update type A records for now

---

• Gets the external/public IPv4 Address
• Uses the config.yaml to get the auth email, cloudflare token and list of domains
• Updates each domain's A record with the public IPv4 address
• Supports domains and subdomains, i.e. if you want to update the domain only, set the domain and name to the same value in the config.
• If you want to update only a subdomain and not the domain, set the name and domain to a different value, i.e. if your domain is "example.com" and you want to udpate "subdomain.example.com" set the latter as name and the former as domain in the config.yaml

Same config.yaml

domains:
  - domain: "example0.com"
    name: "example0.com"
    zone: "14188253e4f00003d5d45e03pp0ppp23"
    proxied: false
    exclude:
      - "185.199.109.153"
  - domain: "example1.com"
    subdomain: "example1"
    zone: "14188253e4f00003d5d45e03pp0ppp23"
    proxied: false
    all: true
  - domain: "example2.com"
    name: "example2"
    zone: "14188253e4f00003d5d45e03pp0ppp23"
    proxied: false
  - domain: "example3.com"
    name: "example3"
    zone: "14188253e4f00003d5d45e03pp0ppp23"
    proxied: false
auth:
  key: "14188253e4f00003d5d45e03pp0ppp23"
  email: "[email protected]"

Usage:

go build && ./glared

Should print something like

2023/07/21 12:33:31 IPV4 address hasn't changed, 200.22.20.15 = 200.22.20.15 in example0.com
2023/07/21 12:33:31 IPV4 address hasn't changed, 200.22.20.15 = 200.22.20.15 in example1.example1.com
2023/07/21 12:33:32 IPV4 address hasn't changed, 200.22.20.15 = 200.22.20.15 in example2.example2.com

Motivation: I have a dynamic IP address at home and every time the electricity goes out (used too much power), I have to manually update the A records of all domains hosted at home with cloudflare.