Extract unique dictionary item from json

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1

Hi All,

I am trying create logical volume group and need to get the vg name and device list from the json variable… i am not sure what is the logic i need to use to get the desired result…

Below is the current output:

{
“msg”: [
{
“vg_hana_data”: “/dev/sdf”
},
{
“vg_hana_data”: “/dev/sdg”
},
{
“vg_hana_data”: “/dev/sdh”
},
{
“vg_hana_log”: “/dev/sdi”
},
{
“vg_hana_log”: “/dev/sdj”
}
]
}

Here is my code:

  • name: Filesystem data gather from input file
    set_fact:
    fs: “{{jsondata | json_query(jmesquery) }}”
    vars:
    jmesquery: ‘filesystem[*].{hostname:hostname,devicename:Devicename,path:MountPath,type:FileSystemType,owner:FSOwner,group:FSGroup,vgname:vgname}’
  • name: creating dictionary to store vgname
    set_fact:
    #diskdata: “{{ diskdata|default({})|combine ([ {item.vgname: item.devicename} ]) }}”
    diskdata: “{{ diskdata|default() + [ {item.vgname: item.devicename} ] }}”

vg_dict: “{{vg_dict|combine( {item.vgname : item.path}) }}”

with_items:

  • “{{fs}}”
    when: “‘{{item.vgname}}’.startswith(‘vg_hana’)”
  • name:
    debug:
    msg: “{{diskdata}}”
  • name: Appending data variable
    set_fact:
    hana_data: “{{hana_data}} + [‘{{item.vgname}}’]”
    with_items: “{{fs}}”
    when: “‘{{item.vgname}}’.startswith(‘vg_hana’)”
    vars:
    hana_data:
  • debug:
    msg: “{{hana_data}}”

Badly need some help on this.