I would like to modify vars for drupal configuration file settings.php with ansible and regex_replace module. My initial var is an IP xxx.xxx.xxx.xxx and I want this as my new var xxx\.xxx\.xxx\.xxx
My playbook:
---
- hosts: localhost
remote_user: cal
become: yes
become_user: cal
tasks:
- set_fact:
ip_front: "10.11.12.13"
ip_front_back: "{{ ip_front | regex_replace('\\.', '\\.') }}"
- name: "show all var"
debug:
msg:
- "{{ ip_front }}"
- "{{ ip_front_ok }}"
Output:
ok: [localhost] => {
"msg": [
"10.11.12.13",
"10\\.11\\.12\\.13"
]
}
How can I use pattern to resolve it?
Related
Trying to add \ before . on a list of IPs in Ansible.
Example:
"msg": "192.168.5.0"
Expected output:
"msg": "192\.168\.5\.0"
I tried this with no luck.
---
- hosts: localhost
vars:
ip: "{{ ansible_default_ipv4.network }}"
tasks:
- debug: msg="{{ ip | regex_replace('\.', '\\.')}}"
Output:
ok: [localhost] => {
"msg": "192\\.168\\.5\\.0"
}
---
- hosts: localhost
vars:
ip: "{{ ansible_default_ipv4.network }}"
tasks:
- debug: msg="{{ ip | regex_replace('.', '\.')}}"
Output:
ok: [localhost] => {
"msg": "192\\.168\\.5\\.0"
}
The function regex_replace works as you expect. The double backslashes you see are the evaluation of the string by debug. Display, for example, the length of the string
- set_fact:
ip2: "{{ ip | regex_replace(myregex, myreplace) }}"
vars:
myregex: '\.'
myreplace: '\.'
- debug:
msg: "length of {{ ip2 }} is {{ ip2|length }}"
give
"msg": "length of 192\\.168\\.5\\.0 is 14"
It's also possible to write the string to a file. For example the template
shell> cat test.txt.j2
{{ ip2 }}
and the task
- template:
src: test.txt.j2
dest: test.txt
give
shell> cat test.txt
192\.168\.5\.0
ansible 2.9.1
I have inventory:
[group1]
server1 master=yes
server2 master=no
server3 master=no
How get ansible_fqdn with master=yes from server2, server3?
Example:
server2 or server3 facts:
...
master_server: server1
...
I think so, but it did not work:
- name: set fact
set_fact:
master_server: {{ ansible_fqdn }}
when: master == 'yes'
delegate_to: "{{ item }}"
loop: "{{ ansible_play_hosts }}"
UPDATE. RESOLVE
add:
run_once: True
Q: "How to get ansible_fqdn with master=yes from server2, server3?"
A: There are more options. For example, either use selectattr
- hosts: group1
tasks:
- set_fact:
master_server: "{{ (groups.group1|
map('extract', hostvars)|
selectattr('master', 'eq', True)|
list|
first).ansible_fqdn }}"
run_once: true
- debug:
var: master_server
, or use json_query
- hosts: group1
tasks:
- set_fact:
master_server: "{{ groups.group1|
map('extract', hostvars)|
list|
json_query('[?master].ansible_fqdn')|
first }}"
run_once: true
- debug:
var: master_server
Both options give
ok: [test_02] => {
"master_server": "test_01.example.org"
}
ok: [test_01] => {
"master_server": "test_01.example.org"
}
ok: [test_03] => {
"master_server": "test_01.example.org"
}
Inventory used in the examples
$ cat hosts
group1:
hosts:
test_01:
master: yes
ansible_fqdn: test_01.example.org
test_02:
master: no
ansible_fqdn: test_02.example.org
test_03:
master: no
ansible_fqdn: test_03.example.org
looking to pass the dict to read a set of key value pairs based on the location. When values are hardcoded to the playbook, it works fine but calling through extra_vars giving an error message. Not sure even if it supports. appreciate, your thoughts and inputs.
ansible-playbook play3.yml -e '{"var1":"loc2"}' -vv
play3.yml
---
- name: testing
hosts: localhost
connection: local
gather_facts: no
vars_files:
- var_file.yml
tasks:
- debug:
msg: "{{ var1['first'] }}"
var_file.yml
---
loc1:
first: name1
last: name2
loc2:
first: python
last: perl
...
"Anything's possible in an animated cartoon." -Bugs Bunny
This playook:
---
- name: testing
hosts: localhost
connection: local
gather_facts: no
vars_files:
- var_file.yml
tasks:
- debug:
var: "{{ item }}.first"
with_items: "{{ var1 }}"
Gave me this output:
TASK [debug] **********************************************************************************************************************************
task path: /home/jack/Ansible/CANES/PLAYBOOKS/play3.yml:9
ok: [localhost] => (item=None) => {
"loc2.first": "python"
}
I have this playbook, it work using max_index but always takes the first 3 hosts from /etc/ansible/hosts , i need to take 3 random (and not repeated) hosts from that file.
playbook.yml
---
- hosts: ciscos
connection: local
gather_facts: false
tasks:
- group_by: key=limited_selection
when: play_hosts.index(inventory_hostname) < max_index | int
- hosts: limited_selection
gather_facts: no
/etc/ansible/hosts
[ciscos]
stagin ansible_host=10.xx.xx.1
stagin2 ansible_host=10.xx.xx.1
stagin3 ansible_host=10.xx.xx.1
stagin4 ansible_host=10.xx.xx.1
stagin5 ansible_host=10.xx.xx.1
Solution
You need to shuffle the elements of the group and choose three first. The Jinja2 expression for that is:
(groups['ciscos'] | shuffle)[0:3]
Implementation which should work, but has problems
You should be able to simply filter the group in the hosts declaration:
- hosts: "{{ (groups['ciscos'] | shuffle)[0:3] }}"
gather_facts: no
tasks:
- debug:
However the results are undeterministic - although the play shows as running against three randomly chosen hosts, the tasks are sometimes executed on 1, 2, 3, or 0:
PLAY [[u'stagin2', u'stagin4', u'stagin5']] *******************************************************************************
TASK [debug] **************************************************************************************************************
ok: [stagin2] => {
"msg": "Hello world!"
}
ok: [stagin5] => {
"msg": "Hello world!"
}
Workaround (implementation which works)
Use add_host module to create a filtered group:
- hosts: localhost
connection: local
gather_facts: no
tasks:
- add_host:
name: "{{ item }}"
groups: limited_selection
loop: "{{ (groups['ciscos'] | shuffle)[0:3] }}"
- hosts: limited_selection
gather_facts: no
tasks:
- debug:
What about something like this?
---
- hosts: ciscos
gather_facts: False
connection: local
tasks:
- name: Fact My Inventory
set_fact:
myinventory: "{{ ansible_play_batch | shuffle }}"
run_once: True
delegate_to: localhost
- name: Fact limited_selection
set_fact:
limited_selection: "{{ myinventory[0:max_index|int] }}"
run_once: True
delegate_to: localhost
- name: Create Inventory
add_host:
name: '{{ item }}'
groups: limited_selection
with_items: "{{ limited_selection }}"
delegate_to: localhost
- hosts: limited_selection
gather_facts: no
tasks:
- name: Debug
debug:
msg: "I'm in the limited selection group!"
Be careful with play_hosts as it is deprecated.
Note: I have kept the playbook with connection:ciscos instead of localhost for learning purposes and showing the ansible_play_batch and max_index variables. It is better to have a localhost play with groups instead of delegate_to:localhost
I am trying fetch to distinct groups in the inventory through a variable.this is the command am trying to run in the playbook to add hosts to the Nagios XI. Am trying to do this using Rest API through CURL command. Am getting error as Incorrect pattern. Can some one please advise about the issue. or help me out with how we can call two groups from the inventory in the same command.
- name: add host to nagios XI.
shell: curl -XPOST "http://16.231.22.60/nagiosxi/api/v1/config/host?apikey=qfOQpKFORCNo7HPunDUsSjW7f2rNNmrdVv3kvYpmQcNdSS2grV2jeXKsgbv3QgfL&pretty=1" -d "host_name={{ item.hostname }}&address={{ item.address }}&use=xiwizard_ncpa_host&max_check_attempts=5&check_period=xi_timeperiod_24x7¬ification_interval=60¬ification_period=xi_timeperiod_24x7¬ifications_enabled=0&contacts=nagiosadmin&contact_groups=Candle Admins,Candle-L1-L2-Internal&applyconfig=1"
with_items:
- { hostname: "{{ groups['grp1'] }}", address: "{{ groups['grp2'] }}"}
EDIT: code formatting
Understanding that your hostname and address from each group match each other you can do the following:
Inventory:
[grp1]
host1
host2
host3
[grp2]
10.100.10.1
10.100.10.2
10.100.10.3
Play:
---
- name: Debug Together
hosts: localhost
gather_facts: False
tasks:
- name: Add host to nagios XI
shell: shell: curl -XPOST "http://16.231.22.60/nagiosxi/api/v1/config/host?apikey=qfOQpKFORCNo7HPunDUsSjW7f2rNNmrdVv3kvYpmQcNdSS2grV2jeXKsgbv3QgfL&pretty=1" -d "host_name={{ item.0 }}&address={{ item.1 }}&use=xiwizard_ncpa_host&max_check_attempts=5&check_period=xi_timeperiod_24x7¬ification_interval=60¬ification_period=xi_timeperiod_24x7¬ifications_enabled=0&contacts=nagiosadmin&contact_groups=Candle Admins,Candle-L1-L2-Internal&applyconfig=1"
with_together:
- "{{ groups['grp1'] }}"
- "{{ groups['grp2'] }}"
You will get something like:
TASK [debug] ******************************************************************************************************************
ok: [localhost] => (item=None) => {
"item.0, item.1": "(u'host1', u'10.100.10.1')"
}
ok: [localhost] => (item=None) => {
"item.0, item.1": "(u'host2', u'10.100.10.2')"
}
ok: [localhost] => (item=None) => {
"item.0, item.1": "(u'host3', u'10.100.10.3')"
}
Comming from my test:
- name:
debug:
var: item.0, item.1
with_together:
- "{{ groups['grp1'] }}"
- "{{ groups['grp2'] }}"