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# Project Clearwater - IMS in the Cloud
# Copyright (C) 2015 Metaswitch Networks Ltd
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version, along with the "Special Exception" for use of
# the program along with SSL, set forth below. This program is distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;
# without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more
# details. You should have received a copy of the GNU General Public
# License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
# The author can be reached by email at clearwater@metaswitch.com or by
# post at Metaswitch Networks Ltd, 100 Church St, Enfield EN2 6BQ, UK
#
# Special Exception
# Metaswitch Networks Ltd grants you permission to copy, modify,
# propagate, and distribute a work formed by combining OpenSSL with The
# Software, or a work derivative of such a combination, even if such
# copying, modification, propagation, or distribution would otherwise
# violate the terms of the GPL. You must comply with the GPL in all
# respects for all of the code used other than OpenSSL.
# "OpenSSL" means OpenSSL toolkit software distributed by the OpenSSL
# Project and licensed under the OpenSSL Licenses, or a work based on such
# software and licensed under the OpenSSL Licenses.
# "OpenSSL Licenses" means the OpenSSL License and Original SSLeay License
# under which the OpenSSL Project distributes the OpenSSL toolkit software,
# as those licenses appear in the file LICENSE-OPENSSL.
heat_template_version: 2014-10-16
description: >
DNS server exposing dynamic DNS using DNSSEC
parameters:
vnf_name:
type: string
label: VNF ID
description: The VNF name provided by ONAP
vnf_id:
type: string
label: VNF ID
description: The VNF ID provided by ONAP
vf_module_id:
type: string
label: VNF module ID
description: The VNF module ID provided by ONAP
public_net_id:
type: string
description: ID of public network
constraints:
- custom_constraint: neutron.network
description: Must be a valid network ID
dns_name_0:
type: string
description: Name of server to use
dns_flavor_name:
type: string
description: Flavor to use
constraints:
- custom_constraint: nova.flavor
description: Must be a valid flavor name
dns_image_name:
type: string
description: Name of image to use
key_name:
type: string
description: Name of keypair to assign
constraints:
- custom_constraint: nova.keypair
description: Must be a valid keypair name
zone:
type: string
description: DNS zone
dnssec_key:
type: string
description: DNSSEC private key (Base64-encoded)
resources:
dns_random_str:
type: OS::Heat::RandomString
properties:
length: 4
dns_security_group:
type: OS::Neutron::SecurityGroup
properties:
description: security group
name:
str_replace:
template: pre_base_rand
params:
pre: dns_sg_
base: { get_param: vnf_name }
rand: { get_resource: dns_random_str }
rules: [
{remote_ip_prefix: 0.0.0.0/0, protocol: tcp, port_range_min: 22, port_range_max: 22},
{remote_ip_prefix: 0.0.0.0/0, protocol: tcp, port_range_min: 53, port_range_max: 53},
{remote_ip_prefix: 0.0.0.0/0, protocol: udp, port_range_min: 53, port_range_max: 53},
{remote_ip_prefix: 0.0.0.0/0, protocol: icmp}]
dns_admin_port_0:
type: OS::Neutron::Port
properties:
name:
str_replace:
template: base_rand
params:
base: dns_admin_port_0
rand: { get_resource: dns_random_str }
network: { get_param: public_net_id }
security_groups: [{ get_resource: dns_security_group }]
dns_server_0:
type: OS::Nova::Server
properties:
name:
str_replace:
template: pre_base_rand
params:
pre: dns_server_0_
base: { get_param: vnf_name }
rand: { get_resource: dns_random_str }
image: { get_param: dns_image_name }
flavor: { get_param: dns_flavor_name }
key_name: { get_param: key_name }
networks:
- port: { get_resource: dns_admin_port_0 }
metadata: {vnf_id: { get_param: vnf_id }, vf_module_id: { get_param: vf_module_id }, vnf_name: { get_param: vnf_name }}
user_data_format: RAW
user_data:
str_replace:
params:
__zone__: { get_param: zone }
__dnssec_key__: { get_param: dnssec_key }
template: |
#!/bin/bash
# Log all output to file.
exec > >(tee -a /var/log/clearwater-heat-dns.log) 2>&1
set -x
# Install BIND.
apt-get update
DEBIAN_FRONTEND=noninteractive apt-get install bind9 --yes
# Get the IP address from eth0
sudo apt-get install ipcalc
ADDR=`ip addr show eth0 | awk '/inet /{print $2}'`
PUBLIC_ADDR=`ipcalc -n -b $ADDR | awk '/Address:/{print $2}'`
# Update BIND configuration with the specified zone and key.
cat >> /etc/bind/named.conf.local << EOF
key __zone__. {properties
algorithm "HMAC-MD5";
secret "__dnssec_key__";
};
zone "__zone__" IN {
type master;
file "/var/lib/bind/db.__zone__";
allow-update {
key __zone__.;
};
};
EOF
# Function to give DNS record type and IP address for specified IP address
ip2rr() {
if echo $1 | grep -q -e '[^0-9.]' ; then
echo AAAA $1
else
echo A $1
fi
}
# Create basic zone configuration.
cat > /var/lib/bind/db.__zone__ << EOF
\$ORIGIN __zone__.
\$TTL 1h
@ IN SOA ns admin\@__zone__. ( $(date +%Y%m%d%H) 1d 2h 1w 30s )
@ NS ns
ns $(ip2rr $PUBLIC_ADDR)
EOF
chown root:bind /var/lib/bind/db.__zone__
# Now that BIND configuration is correct, kick it to reload.
service bind9 reload
outputs:
dns_ip:
description: IP address of DNS server
value: { get_attr: [ dns_server_0, networks, { get_param: public_net_id }, 0 ] }
zone:
description: DNS zone
value: { get_param: zone }
dnssec_key:
description: DNSSEC private key (Base64-encoded)
value: { get_param: dnssec_key }
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