add hosts role

README.md

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+Add records in format ${ansible_host} ${FQDN} ${short} from inventory to /etc/hosts
+
+Config example:
+
+    pin_hosts: yes
+
+Inventory example:
+
+    node1.site.local ansible_host=10.2.1.5
+    node2.site.local ansible_host=10.2.1.6
+    node3.site.local ansible_host=10.2.1.7
+
+Result /etc/hosts:
+
+    10.2.1.5 node1.site.local node1
+    10.2.1.6 node2.site.local node2
+    10.2.1.7 node3.site.local node3
+

defaults/main.yaml

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+pin_hosts: "no"

meta/main.yml

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+---
+galaxy_info:
+  description: Hostname
+  galaxy_tags:
+  - hostname
+
+dependencies: []

tasks/main.yaml

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+---
+- block:
+  - name: add ip address of all hosts to all hosts
+    lineinfile:
+      dest: /etc/hosts
+      regexp: '.*{{ item }} {{ item.split(".")[0] }}$'
+      line: "{{ hostvars[item].ansible_host }} {{ item }} {{ item.split('.')[0] }}"
+      state: present
+    when:
+      - hostvars[item].ansible_host is defined
+      - hostvars[item].pin_hosts is defined
+    with_items: "{{ groups.all }}"
+    tags:
+      - hosts
+
+  become: true