openstack/openstack-ansible-ops
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Adds in DHCPD role - Ubuntu 16.04

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Building on from the previous commit https://review.openstack.org/427869
this adds in DHCPD role to provide DHCP to the virtual machines which
are booting up and point them towards our TFTP server.

Change-Id: I73649562096a659dee7227b0cfb84f2c4a4f5ec4
This commit is contained in:
Rick Box 2017-02-03 04:15:09 +00:00
parent e0381502e3
commit 088d941d22
8 changed files with 232 additions and 0 deletions
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23
multi-node-aio-xenial-ansible/roles/dhcpd_install/README.md Normal file
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dhcpd_install
=========
This module installs dhcpd
Requirements
------------
This module requires Ansible 2.x
Role Variables
--------------
See defaults for variables and descriptions
Example Playbook
----------------
Example to call:
- hosts: all
roles:
- { role: dhcpd_install }

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multi-node-aio-xenial-ansible/roles/dhcpd_install/defaults/main.yml Normal file
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---
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# name: dhcpd_install/defaults
# description: ALL our default variables for dhcpd_install go in here
#------------------------------------------------------------------------------
# Packages - All our required packages we need installing
#------------------------------------------------------------------------------
# - pre-requisites -
packages: # Packages required for dhcpd
- isc-dhcp-server
# - general variables -
dhcp_default_lease_time: 21600 # Default lease time
dhcp_max_lease_time: 43200 # Max lease time
tftp_server: 10.0.2.100 # The server hosting the TFTP server
tftp_boot_path: /pxelinux.0 # Path of where to boot from first
# - List of DHCP Subnets - These are iterated though and each will be created
dhcp_list:
- netmask: 255.255.255.0 # Netmask
gateway: 10.0.2.1 # Gateway
dns: 8.8.8.8 # DNS
subnet: 10.0.2.0 # Subnet mask
default_lease_time: 21600 # Subnet Default lease time - The default is used if this is not defined
max_lease_time: 43200 # Subnet Max lease time - The default is used if this is not defined
tftp_boot_path: /pxelinux.0 # Path for tftp of where to boot from first - The default is used if this is not defined
tftp_server: 10.0.2.100 # The server hosting the TFTP server - The default is used if this is not defined
# - List of static DHCP hosts - These are iterated though and each will be created
server_list:
- name: host # Server hostname
hwaddr: "aa:aa:aa:aa:aa:aa" # Server MAC
ip: "10.0.2.2" # Server IP

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multi-node-aio-xenial-ansible/roles/dhcpd_install/handlers/main.yml Normal file
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---
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# name: dhcpd_install/handlers
# description: All our handlers for dhcpd_install go in here
- name: restart dhcpd
service:
name: "{{ item }}"
state: restarted
with_items: "{{ packages }}"

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multi-node-aio-xenial-ansible/roles/dhcpd_install/meta/main.yml Normal file
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---
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
galaxy_info:
author: "Rick Box - BBC R&D"
license: Apache2
min_ansible_version: 2.0
platforms:
- name: Ubuntu
versions:
- xenial
dependencies: []

24
multi-node-aio-xenial-ansible/roles/dhcpd_install/tasks/configure.yml Normal file
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---
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# module: dhcpd_install/tasks/configure
# description: Configure dhcpd_install
- name: Create a template in /etc/dhcp/dhcpd.conf
template:
src: dhcpd.conf.j2
dest: /etc/dhcp/dhcpd.conf
mode: 0644
owner: root
group: root
notify: restart dhcpd

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multi-node-aio-xenial-ansible/roles/dhcpd_install/tasks/install.yml Normal file
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---
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# module: dhcpd_install/tasks/install
# description: Install our required packages for dhcpd_install
- name: Install all required packages for dhcpd_install
apt:
pkg: "{{ packages }}"
state: latest
- name: Make sure -{{ packages }}- are enabled
service:
name: "{{ item }}"
enabled: yes
with_items: "{{ packages }}"

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multi-node-aio-xenial-ansible/roles/dhcpd_install/tasks/main.yml Normal file
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---
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# module: dhcpd_install/tasks
# description: Install dhcpd_install onto an Ubuntu 16.xx server
- include: install.yml
- include: configure.yml

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multi-node-aio-xenial-ansible/roles/dhcpd_install/templates/dhcpd.conf.j2 Normal file
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#jinja2: lstrip_blocks: True
### MANAGED BY {{ role_path|basename }} ANSIBLE ROLE ###
ddns-update-style none;
allow booting;
allow bootp;
log-facility local7;
authoritative;
shared-network all-networks {
{% for dhcp in dhcp_list %}
subnet {{ dhcp.subnet }} netmask {{ dhcp.netmask }} {
option routers {{ dhcp.gateway }};
option domain-name-servers {{ dhcp.dns }};
option subnet-mask {{ dhcp.netmask }};
{% if dhcp.default_lease_time is defined and dhcp.default_lease_time > 0 %}
default-lease-time {{ dhcp.default_lease_time }};
{% else %}
default-lease-time {{ dhcp_default_lease_time }};
{% endif %}
{% if dhcp.max_lease_time is defined and dhcp.max_lease_time > 0 %}
max-lease-time {{ dhcp.max_lease_time }};
{% else %}
max-lease-time {{ dhcp_max_lease_time }};
{% endif %}
{% if dhcp.tftp_server is defined and dhcp.tftp_server|ipaddr %}
next-server {{ dhcp.tftp_server }};
{% elif tftp_server is defined and tftp_server|length > 0 %}
next-server {{ tftp_server }};
{% endif %}
{% if dhcp.tftp_boot_path is defined and dhcp.tftp_boot_path|ipaddr %}
filename "{{ dhcp.tftp_boot_path }}";
{% elif tftp_boot_path is defined and tftp_boot_path|length > 0 %}
filename "{{ tftp_boot_path }}";
{% endif %}
}
{% endfor %}
{% if server_list.0.name != "blank" %}
group {
{% for host in server_list %}
host {{ host.name }} {
hardware ethernet {{ host.hwaddr }};
fixed-address {{ host.ip }};
option host-name "{{ host.name }}";
}
{% endfor %}
}
{% endif %}
}