postgres insert + select + values - Pgsql 9.5

Hi guys,

I got the test1 table with three columns:

id(BIGINT) - j_id(BIGINT) - comments(CHARACTER VARYING)

*This needs to be done 180 times:*

> INSERT INTO test1 (id,j_id,comments) VALUES (default,123321,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default,123322,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default,123323,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default,123324,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default,123325,'test-1 -
> comments');

*However, I have to get j_id from another table:*

> select j_id from test2 WHERE customer_id = 88897

17012651
> 17012601
> 16623374
> 16808986
> 16843879
> 16808794
> 16870199
> 16870488
> 16870443
> 16870403

*Example of what I need:*

INSERT INTO test1 (id,j_id,comments) VALUES (default, 17012651,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default, 17012601,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default, 16623374,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default, 16808986,'test-1 -
> comments');
> INSERT INTO test1 (id,j_id,comments) VALUES (default, 16843879,'test-1 -
> comments');

etc...

How can I do that? If the customer_id is the same for all those 180 rows?

Cheers
Patrick