sample_gce.pol

#
# This is an example policy for capirca
# Target defaults to INGRESS is not specified in the header
#
header {
  comment:: "this is a sample policy to generate GCE filter"
  target:: gce global/networks/default inet
}

term test-ssh {
  comment:: "Allow SSH access to all instances from company."
  source-address:: PUBLIC_NAT
  protocol:: tcp
  destination-port:: SSH
  action:: accept
}

term test-web {
  comment:: "Allow HTTP/S to instances with webserver tag."
  source-address:: ANY
  protocol:: tcp
  destination-port:: HTTP
  destination-tag:: webserver
  action:: accept
}

term test-icmp {
  comment:: "Allow ICMP from company."
  source-address:: PUBLIC_NAT
  protocol:: icmp
  action:: accept
}

term test-icmpv6 {
  comment:: "Allow ICMPv6 from company. This should not be rendered."
  source-address:: PUBLIC_NAT
  protocol:: icmpv6
  action:: accept
}

term test-igmp {
  comment:: "Allow IGMP from company."
  source-address:: PUBLIC_NAT
  protocol:: igmp
  action:: accept
}

term test-multiple-protocols {
  comment:: "Allow TCP/UDP access to all instances from company."
  source-address:: PUBLIC_NAT
  protocol:: tcp udp
  destination-port:: HIGH_PORTS
  action:: accept
}

term test-multiple-protocols-tcp-icmpv6 {
  comment:: "Allow all tcp and icmpv6. This should only render tcp."
  source-address:: PUBLIC_NAT
  protocol:: tcp icmpv6
  action:: accept
}

term test-multiple-protocols-tcp-icmp {
  comment:: "Allow all tcp and icmp."
  source-address:: PUBLIC_NAT
  protocol:: tcp icmp
  action:: accept
}

term test-internal {
  comment:: "Allow all GCE network internal traffic."
  source-address:: RFC1918
  protocol:: tcp udp
  action:: accept
}

term default-deny {
  action:: deny
}

#
# Sample EGRESS policy
# If source-tag is included, it maps to targetTags in the GCP Egress rule
#
header {
  comment:: "this is a sample policy to generate EGRESS GCE filter"
  target:: gce EGRESS global/networks/default inet
}

term test-egress-address {
  comment:: "Outbound to Mail Server"
  protocol:: tcp
  destination-port:: SMTP
  destination-address:: MAIL_SERVERS
  action:: accept
}

term test-egress-tag {
  comment:: "Outbound to RFC1918"
  protocol:: tcp
  destination-port:: SSH
  destination-address:: PUBLIC_NAT
  source-tag:: webserver
  action:: accept
}

term test-egress-address-v6-only {
  comment:: "Outbound to IPv6 Server. This should not be rendered."
  protocol:: tcp
  destination-port:: SMTP
  destination-address:: PUBLIC_IPV6_SERVERS
  action:: accept
}

term default-deny {
  action:: deny
}