Terraform nested maps for_each – Super User

I have created this terraform variable.

variable "test" {
  default = {
    map1 = {
      secrets = {
        "user" = "user"
        "pass" = "123456"
      }
      config = {
        "setting1"   = "123|456|789"
        "setting2"   = "123|456|789"
        "setting3"   = "123|456|789"
        "setting4"   = "123|456|789"
        "setting100" = "123|456|789"
      }
    }
    map2 = {
      secrets = {
        "user" = "user2"
        "pass" = "123456"
      }
      config = {
        "setting1"   = "100500|456|789"
        "setting2"   = "123|100500|789"
        "setting3"   = "123|456|100500"
        "setting4"   = "123|100500|789"
        "setting100" = "100500|456|789"
      }
    }
    mapN = {
      secrets = {
        "user" = "userN"
        "pass" = "123456"
      }
      config = {
        "setting1"   = "100500|456|789"
        "setting2"   = "123|100500|789"
        "setting3"   = "123|456|100500"
        "setting4"   = "123|100500|789"
        "settingN" = "100500|456|789"
      }
    }
  }
}

In this variable could be a huge amount of maps like map1, map2, mapN
Also, there are could be a lot of “settings” with different names like setting1, setting2, dasdasd_23123, asdqw22_qq, but value always would have three elements "123|456|789".

I try to pass values to a module like:

module "test" {
  source = "./test"

  for_each = var.test

  map_name = each.key
  name1    = element(split("|", each.value.config), 0)
  name2    = element(split("|", each.value.config), 2)
  name3    = element(split("|", each.value.config), 1)
}

Is it possible to use for_each in for_each?
Does any have such a kind of experience?
Could anyone share examples?
Thanks!

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iot – SuperMicro E100-8Q – Super User

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Super Slow Manipulate with Heat Equation – – Assumption, and Interpolate

Aim: solve coupled heat equation with cubic source, use DensityPlot and observe how system will react to changes in parameter(like kand kc (0 for now)) values.

Clear(func, y)
kc = 0; 
func(k_) :=
 NDSolve({
   D(y(t, x), t) == D(D(y(t, x), x), x) + y(t, x)^3 - z(t, x),
   D(z(t, x), t) == D(D(z(t, x), x), x) + y(t, x) - k*z(t, x) + kc,
   y(0, x) == 0.3, z(0, x) == 0,
   y(t, -2) == 0, z(t, -2) == 0,
   y(t, 2) == 1, z(t, 2) == 0
   },
  {y, z}, {t, 0, 5}, {x, -2, 2})
Manipulate(
 DensityPlot(
  ({y(tt, xx) /. func(l)}),
  {tt, 0, 5}, {xx, -2, 2}
  ),
 {l, 0, 3, 1}
 )

Manipulate is not functioning well. I think manipulate computes func(k) each step and its super slow due to double derivative terms. Therefore I thought about the following “solutions”:

Solution1
Assume k is a real parameter, and solve equation system once for k. So, for each manipulation step plot for a new k value.

Clear(func, y)
kc = 0; 
(*func(k_):=
NDSolve({
D( y(t,x),t)(Equal)D(D( y(t,x),x),x)+y(t,x)^3-z(t,x),
D( z(t,x),t)(Equal)D(D( z(t,x),x),x)+y(t,x)-k*z(t,x)+kc,
y(0,x)(Equal)0.3,z(0,x)(Equal)0,
y(t,-2)(Equal)0,z(t,-2)(Equal)0,
y(t,2)(Equal)1,z(t,2)(Equal)0
},
{y,z},{t,0,5},{x,-2,2})*)
solfunc(k) := Assuming(k (Element) Reals,
   NDSolve({
    D( y(t, x), t) == z(t, x),
    D( z(t, x), t) == 
     D(D( z(t, x), x), x) + y(t, x) - k*z(t, x) + kc,
    y(0, x) == 0.3, z(0, x) == 0,
    y(t, -2) == 0, z(t, -2) == 0,
    y(t, 2) == 1, z(t, 2) == 0
    },
   {y, z}, {t, 0, 5}, {x, -2, 2}))
plotme(k_) := y(tt, xx) /. solfunc(k)
Manipulate(
 DensityPlot(
  ({plotme(k)}),
  {tt, 0, 5}, {xx, -2, 2}
  ),
 {k, 0, 3, 1}
 )

Not worked.

Question1
Does anyone have any thoughts on how to do this?

Solution2

Use Table the solutions of NDSolve. But table-ing a continuous solution in a discrete way should lose of information.

Question2
(I would appreciate if anyone can give a hint.)

Additional Question

Does anyone have any thoughts on how to use interpolate in this set up?