Ansible : error in calling the groups through restapi

Question

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&notification_interval=60&notification_period=xi_timeperiod_24x7&notifications_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

Answer 1

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&notification_interval=60&notification_period=xi_timeperiod_24x7&notifications_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'] }}"