d548b7e5ff
HAProxy supports the use of map files for selecting backends, or a number of other functions. See [1] and [2]. This patch adds the key `maps` for each service definition allowing fragments of a complete map to be defined across all the services, with each service contributing some elements to the overall map file. The service enabled/disabled and state flags are observed to add and remove entries from the map file, and individual map entries can also be marked as present/absent to make inclusion conditional. [1] https://www.haproxy.com/blog/introduction-to-haproxy-maps/ [2] https://www.haproxy.com/documentation/hapee/latest/configuration/map-files/syntax/ Change-Id: I755c18a4d33ee69c42d68a50daa63614a2b2feb7
90 lines
3.8 KiB
YAML
90 lines
3.8 KiB
YAML
---
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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###########################################################################
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# Service frontends and backends assembled from fragments into haproxy.conf
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###########################################################################
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- name: Create haproxy service config files
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template:
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src: service.j2
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dest: "/etc/haproxy/conf.d/{{ item.service.haproxy_service_name }}"
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with_items: "{{ haproxy_service_configs }}"
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when:
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- (item.service.haproxy_backend_nodes is defined and
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item.service.haproxy_backend_nodes | length > 0) or
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(item.service.haproxy_backup_nodes is defined and
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item.service.haproxy_backup_nodes | length > 0) or
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item.service.haproxy_frontend_only | default('False')
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- (item.service.haproxy_service_enabled | default('True')) | bool
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- (item.service.state is not defined or item.service.state != 'absent')
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notify: Regenerate haproxy configuration
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tags:
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- haproxy-service-config
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- name: Remove haproxy service config files for absent services
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file:
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path: "/etc/haproxy/conf.d/{{ item.service.haproxy_service_name }}"
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state: absent
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notify: Regenerate haproxy configuration
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with_items: "{{ haproxy_service_configs }}"
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when:
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- ((item.service.haproxy_service_enabled | default('True')) | bool) is falsy or
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(item.service.state is defined and item.service.state == 'absent')
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tags:
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- haproxy-service-config
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###########################################################################
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# Map files assembled from fragments from each service into <map-name>.map
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###########################################################################
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- name: Create haproxy map fragment directories
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file:
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state: directory
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path: "/etc/haproxy/map.conf.d/{{ item }}"
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with_items: "{{ haproxy_service_configs | selectattr('service.haproxy_map_entries', 'defined') | map(attribute='service.haproxy_map_entries') | flatten | map(attribute='name') | unique }}"
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# create map entries when the service is enabled and an existing map fragment is not absent
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- name: Create haproxy map files
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vars:
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map_file: "/etc/haproxy/map.conf.d/{{ item.1.name }}/{{ item.1.order | default('00') }}-{{ item.0.service.haproxy_service_name }}.map"
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template:
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src: map.j2
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dest: "{{ map_file }}"
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with_subelements:
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- "{{ haproxy_service_configs | selectattr('service.haproxy_map_entries', 'defined') }}"
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- service.haproxy_map_entries
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when:
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- (item.0.service.haproxy_service_enabled | default(True)) | bool
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- item.1.state | default('present') != 'absent'
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notify: regenerate maps
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register: map_create
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# remove map entries when the service is not enabled, the service is absent or the map is absent
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- name: Delete unused map entries
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file:
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state: absent
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path: "/etc/haproxy/map.conf.d/{{ item.1.name }}/{{ item.1.order | default('00') }}-{{ item.0.service.haproxy_service_name }}.map"
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when:
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- (item.0.service.haproxy_service_enabled | default('True')) | bool is falsy or
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(item.0.service.state is defined and item.0.service.state == 'absent') or
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(item.1.state | default('present') == 'absent')
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with_subelements:
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- "{{ haproxy_service_configs | selectattr('service.haproxy_map_entries', 'defined') }}"
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- service.haproxy_map_entries
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notify: regenerate maps
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register: map_delete
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