Ansible: How to create nested dictionary using Jinja2 - ansible

Question

Here is the output.
"result.containers":[
{
"Image":"ca.docker/webproxy:1.0.0",
"Names":[
"/customer1"
]
},
{
"Image":"docker.local/egacustomer:1.0.1",
"Names":[
"/registrator"
]
}
]
I'm trying to get the following output using jinja2
"containerlist"=>{
"webproxy": {
"name": "customer1"
},
"egacustomer": {
"name": "registrator"
}
}
Here is my jinja2 code.
- set_fact:
containerlist: |
{
{% for item in result.containers %}
{{ item.Image.split('/')[-1].split(':')[0] | replace('\n', '') }}
name : {{ item.Names[0][1:] | replace('\n', '') }}
{% endfor %}
}
I get the below output.
"containerlist": "{\nwebproxy\n name : customer1\negacustome\n name : registrator\n}"
Could someone please help me get the desired output. Any help would be greatly appreciated

Answer 1

The data in YAML
result:
containers:
- Image: ca.docker/webproxy:1.0.0
Names:
- /customer1
- Image: docker.local/egacustomer:1.0.1
Names:
- /registrator
The tasks below
- set_fact:
containerlist: "{{ containerlist|default({})|
combine({key: {'name': name}}) }}"
loop: "{{ result.containers }}"
vars:
key: "{{ (item.Image.split(':')|first).split('/')|last }}"
name: "{{ item.Names[0][1:] }}"
- debug:
var: containerlist
give
containerlist:
egacustomer:
name: registrator
webproxy:
name: customer1
But, the result is not a list. It's a dictionary. If you want a list use this
- set_fact:
containerlist: "{{ containerlist|default([]) +
[{key: {'name': name}}] }}"
loop: "{{ result.containers }}"
vars:
key: "{{ (item.Image.split(':')|first).split('/')|last }}"
name: "{{ item.Names[0][1:] }}"
- debug:
var: containerlist
give
containerlist:
- webproxy:
name: customer1
- egacustomer:
name: registrator