Use a Ansible Array variable with loop in Jinja2 template [duplicate] - dictionary

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This question already has answers here:
How to use Ansible's with_item with a variable?
(2 answers)
Closed 5 years ago.
This is my configuration array.
tomcatsconfs:
- {instance: tc-p1_i01_3001, port: 30011, connector: ajp-nio-, connector_port: 30012}
- {instance: tc-p1_i02_3002, port: 30021, connector: ajp-nio-, connector_port: 30022}
- {instance: tc-p1_i03_3003, port: 30031, connector: ajp-nio-, connector_port: 30032}
Now I woul like to create a nrpe.cfg with a jinja2 template with these task:
- name: copy nrpe.conf from template
template: src=nrpe.cfg.j2 dest=/etc/nagios/nrpe.cfg mode=0644 owner=root group=root
with_items:
- tomcatsconfs
Ansible transfers this array as a dictionary.
+[{u'connector': u'ajp-nio-', u'instance': u'tc-p1_i01_3001', u'connector_port': 30012, u'port': 30011}, {u'connector': u'ajp-nio-', u'instance': u'tc-p1_i02_3002', u'connector_port': 30022, u'port': 30021}, {u'connector': u'ajp-nio-', u'instance': u'tc-p1_i03_3003', u'connector_port': 30032, u'port': 30031}]
And I try to iterate this dictionary with this loop
{% for key value in tomcatconfs.iteritems() %}
key value
{% endfor %}
But I get the error message:
failed: [host] (item=tomcatconfs) => {"failed": true, "item": "tomcatconfs", "msg": "AnsibleUndefinedVariable: 'list object' has no attribute 'iteritems'"}
How I can iterate this dictionary in this template?
Greetings niesel

Answer 1

I used this.
---
- name: Run Ansible
hosts: 127.0.0.1
connection: local
gather_facts: true
vars:
tomcatsconfs:
- {instance: tc-p1_i01_3001, port: 30011, connector: ajp-nio-, connector_port: 30012}
- {instance: tc-p1_i02_3002, port: 30021, connector: ajp-nio-, connector_port: 30022}
- {instance: tc-p1_i03_3003, port: 30031, connector: ajp-nio-, connector_port: 30032}
tasks:
- name: Testing Iteration
copy:
dest: /tmp/testtemp
content: |
{% for var in tomcatsconfs %}
instance: {{ var.instance }}
port: {{ var.port }}
connector: {{ var.connector }}
connector_port: {{ var.connector_port }}
{% endfor %}
OUTPUT:
instance: tc-p1_i01_3001
port: 30011
connector: ajp-nio-
connector_port: 30012
instance: tc-p1_i02_3002
port: 30021
connector: ajp-nio-
connector_port: 30022
instance: tc-p1_i03_3003
port: 30031
connector: ajp-nio-
connector_port: 30032

Answer 2

I think all you need to change is how you are passing the list to with_items. Try changing
- name: copy nrpe.conf from template
template: src=nrpe.cfg.j2 dest=/etc/nagios/nrpe.cfg mode=0644 owner=root group=root
with_items:
- tomcatsconfs
to
- name: copy nrpe.conf from template
template: src=nrpe.cfg.j2 dest=/etc/nagios/nrpe.cfg mode=0644 owner=root group=root
with_items: "{{ tomcatsconfs }}"
I think what is going on is that you are giving with_items a list of one list. If you change it to what I have in my example, you are just giving it the list.
This fixed it with my simplified sample playbook:
---
- hosts: localhost
connection: local
vars:
tomcatsconfs:
- {instance: tc-p1_i01_3001, port: 30011, connector: ajp-nio-, connector_port: 30012}
- {instance: tc-p1_i02_3002, port: 30021, connector: ajp-nio-, connector_port: 30022}
- {instance: tc-p1_i03_3003, port: 30031, connector: ajp-nio-, connector_port: 30032}
tasks:
- debug: var="{{item}}"
with_items:
- tomcatsconfs
- debug: var="{{item['port']}}"
with_items: "{{ tomcatsconfs }}"