What this code does is: Get some user input at run time, do some tasks
(including creating new hosts) depending on the user input at run time.
Then do some other tasks in the newly created hosts. The only confusion I
am having is in two lines of the code in which I have added comments. All I
want to do access the values stored in register array on one host be
accessible in another host using the with_items loop. Just have a look at
*#Comment1
and #Comment2*
#$ cat khan.yml
---
- hosts: localhost
gather_facts: False
vars_prompt:
- name: epcrange
prompt: Enter the number of EPCs that you want to configure
private: False
default: "1"
- name: serverrange
prompt: Enter the number of Cleints that you want to configure
private: False
defualt: "1"
- name: ServerIP
prompt: Enter the ServerIP to replace
private: False
default: "11.11.4.10"
- name: ServerIPRange
prompt: Enter the ServerIP range
private: False
default: '128'
- name: LastIPOctet
prompt: Enter The last Octet of the IP you just entered
private: False
default: '10'
pre_tasks:
- name: Set EPC node id variables
set_fact:
start: 1
stop: "{{epcrange}}"
- name: "Add EPC hosts:"
add_host: name="vm{{item}}" groups=just_created_epcs
with_sequence: "start={{start}} end={{stop}} "
- name: Set Client node id variable
set_fact:
start: 1
stop: "{{serverrange}}"
- name: "Add Client hosts:"
add_host: name="vm{{item}}" groups=just_created_clients
with_sequence: "start={{start}} end={{stop}} "
- name: Set some facts
set_fact:
ServerIP1: "{{ServerIP}}"
ServerIPRange1: "{{ServerIPRange}}"
#temp_count1: "{{temp_count}}"
IPOctet: "{{LastIPOctet}}"
IPOctet1: "{{LastIPOctet}}"
IPOctet2: "{{LastIPOctet}}"
- name: local action math for clients
local_action: shell IPOctet={{IPOctet}}; for i in `seq 1 {{epcrange}}` ;
do IPOctet=$(expr {{ServerIPRange}} / {{epcrange}} + $IPOctet); echo $IPOctet;
done
register: result
- name: iterate results
local_action: debug msg={{item}}
with_items: result.stdout_lines
- name: create new IP Addresses
debug: var={{ ServerIP.split('.')[0] }}.{{ ServerIP.split('.')[1] }}.{{
ServerIP.split('.')[2] }}.{{ item }}
with_items: result.stdout_lines
register: new_ips *#Comment1*
*#Comment1: I need these new_ips (as items in other hosts)*
- name: Checking to see if new IPs were stored
debug: var=new_ips
- hosts: just_created_epcs
serial: 1
gather_facts: False
vars:
- String1: '"ServerIP"'
- String2: '"ServerIPRange"'
tasks:
- name: echo epc sequence
shell: echo "cmd"
# when: inventory_hostname == "vm1" # change this approprriately
ignore_errors: yes
- name: Replace ServerIP in config_file on OTHER NODES
shell: cd /home/imran/Desktop/tobefetched; sed -i '/{{String1}}/ c
"ServerIP" ':' "{{item}}" ' config_file *#Comment2*
*#Comment2: This is where I need it, if I replace {{item}} by any variable
it works fine such as {{hostvars.localhost.ServerIP1}}*
with_items: hostvars.localhost.new_ips.stdout_lines
ignore_errors: yes
- name: Check if the changes to config_file were successful
shell: cat /home/imran/Desktop/tobefetched/config_file
ignore_errors: yes
register: my_content
- name: Display the contents of config_file after modification
debug: var=my_content.stdout_lines
ignore_errors: yes
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