example.yml

## Example filter rule for gatekeeper
#
# default deny
---
- Deny:
    address: Any
    port: Any
    protocol: Any
# allow local ipv4 network 192.168.0.1/16
- Allow:
    address:
      Specif:
        IpAddr:
          addr: 192.168.0.1
          prefix: 16
    port: Any
    protocol: Any
# allow some google domains using port 443
- Allow:
    # {mail.,}google.{com,co.jp}
    address:
      Specif:
        Domain:
          # regexp pattern
          pattern: '\A(mail\.)?google\.((com)|(co\.jp))\z'
    port:
      Specif: 443
    protocol:
      Specif: Tcp
# allow any Amazon API Gateway's REST API
- Allow:
    address:
      Specif:
        Domain:
          wildcard: '*.execute-api.*.amazonaws.com'
    port:
      Specif: 443
    protocol:
      Specif: Tcp
# deny facebook.com
- Deny:
    address:
      Specif:
        Domain:
          pattern: '\A(www\.)?facebook\.com\z'
    port: Any
    protocol:
      Specif: Tcp
# deny youtube.com
- Deny:
    address:
      Specif:
        Domain:
          pattern: '\A(www\.)?youtube\.com\z'
    port: Any
    protocol:
      Specif: Tcp