Re: [ansible-project] merging lists
On Mon, 17 Apr 2023 19:29:02 -0400
Michael DiDomenico wrote:
> thanks for the help, but that's not exactly what i am after. i'm
> attempting to avoid creating a third variable. but maybe that's the
> only way
You can avoid the third variable if you want to. For example,
a: [1, 2, 3]
b: "{{ a + [4, 5, 6] }}"
will add the lists
b: [1, 2, 3, 4, 5, 6]
--
Vladimir Botka
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Re: [ansible-project] merging lists
thanks for the help, but that's not exactly what i am after. i'm
attempting to avoid creating a third variable. but maybe that's the
only way
On Mon, Apr 17, 2023 at 7:05 PM Vladimir Botka wrote:
>
> On Mon, 17 Apr 2023 18:22:10 -0400
> Michael DiDomenico wrote:
>
> > lista:
> > - { one: 'str1', two: 'str2' }
> >
> > listb:
> > - "{{ lookup('vars','lista') }}"
> > - { one: 'str1', two: 'str2' }
> >
> > the output i want is
> >
> > listb:
> > { one: 'str1', two: 'str2' },
> > { one: 'str1', two: 'str2' }
> >
> > but what i get is
> >
> > listb:
> > [ { one: 'str1', two: 'str2' } ],
> > { one: 'str1', two: 'str2' }
>
> The lookup *vars* is not necessary. Reference the variable
>
> listb:
> - "{{ lista }}"
> - {one: str1, two: str2}
>
> You should get
>
> listb:
> - - one: str1
> two: str2
> - one: str1
> two: str2
>
> This is correct. The first item on the list *listb* is list *lista*.
> If you put two items into the list *lista*
>
> lista:
> - one: str1
> two: str2
> - ccc: str3
> ddd: str4
>
> you'll get
>
> listb:
> - - one: str1
> two: str2
> - ccc: str3
> ddd: str4
> - one: str1
> two: str2
>
> You can *flatten* the list
>
>listc: "{{ listb|flatten }}"
>
> gives
>
> listc:
> - one: str1
> two: str2
> - ccc: str3
> ddd: str4
> - one: str1
> two: str2
>
> However, a simpler option is adding lists. For example, given two
> lists
>
> lista:
> - {one: str1, two: str2}
> - {ccc: str3, ddd: str4}
> listb:
> - {one: str1, two: str2}
>
> Declare the list *listc*. This will merge the two lists
>
> listc: "{{ lista + listb }}"
>
>
> --
> Vladimir Botka
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Re: [ansible-project] merging lists
On Mon, 17 Apr 2023 18:22:10 -0400
Michael DiDomenico wrote:
> lista:
> - { one: 'str1', two: 'str2' }
>
> listb:
> - "{{ lookup('vars','lista') }}"
> - { one: 'str1', two: 'str2' }
>
> the output i want is
>
> listb:
> { one: 'str1', two: 'str2' },
> { one: 'str1', two: 'str2' }
>
> but what i get is
>
> listb:
> [ { one: 'str1', two: 'str2' } ],
> { one: 'str1', two: 'str2' }
The lookup *vars* is not necessary. Reference the variable
listb:
- "{{ lista }}"
- {one: str1, two: str2}
You should get
listb:
- - one: str1
two: str2
- one: str1
two: str2
This is correct. The first item on the list *listb* is list *lista*.
If you put two items into the list *lista*
lista:
- one: str1
two: str2
- ccc: str3
ddd: str4
you'll get
listb:
- - one: str1
two: str2
- ccc: str3
ddd: str4
- one: str1
two: str2
You can *flatten* the list
listc: "{{ listb|flatten }}"
gives
listc:
- one: str1
two: str2
- ccc: str3
ddd: str4
- one: str1
two: str2
However, a simpler option is adding lists. For example, given two
lists
lista:
- {one: str1, two: str2}
- {ccc: str3, ddd: str4}
listb:
- {one: str1, two: str2}
Declare the list *listc*. This will merge the two lists
listc: "{{ lista + listb }}"
--
Vladimir Botka
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[ansible-project] merging lists
i want to do this, but i'm not getting exactly what i want
lista:
- { one: 'str1', two: 'str2' }
listb:
- "{{ lookup('vars','lista') }}"
- { one: 'str1', two: 'str2' }
the output i want is
listb:
{ one: 'str1', two: 'str2' },
{ one: 'str1', two: 'str2' }
but what i get is
listb:
[ { one: 'str1', two: 'str2' } ],
{ one: 'str1', two: 'str2' }
is there a way to merge the two lists?
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