performance – Terraform / HCL – First element (or any element) from a list of sentences, combined into a list

So I work with Terraform and have the feeling that there has to be a faster or at least nicer way to perform the operation that I have performed.

For some boiler plates I have a data block that looks like this:

data "aws_subnet_ids" "lambda_subnet_ids" {
  count  = length(var.lambda_subnet_tags)
  vpc_id = ...
}

From the results of this data block, I would like to retrieve the first value from each set and combine it in another list. This is how my team went before me. I wrapped it up locals Block to make it easier to see the use case:

locals {
  lambda_subnet_ids = flatten(
    (
      for subnets in data.aws_subnet_ids.lambda_subnet_ids :
        (
          element(tolist(subnets.ids), 1)
        )
    )
  )
}

It works now. It just looks terrible. I feel like there Has to be a nicer way to do the same operation, but I don't know HCL well enough to know what to look for.

By the way, this should really have the tags HCL and Terraform, but I don't have the reputation to create it.

Tunnel and transport mode in IPSec, can they be combined?

I was wondering between two cases

1 – Tunnels from A to C and tunnels from B to D, could a packet be sent for A to D?

2 – Transport from A to D and tunnels from B to D

In one of these cases, would it be possible to send a package?

For case 1, I assume that this would not be possible due to SA and that the decryption would become chaotic
But for the second case it sounds logical to me.

Could you share your thoughts?

random – How can a newly combined version of two lists be optimally created?

I want to randomly recombine two lists of the following form:

l1 = {a,b,c,d,e,f}
l2 = {1,2,3,4,5,6}

Their recombination is similar to that of DNA, so there is a random selection between each index of the lists, as follows:

Table[RandomChoice[{l1[[n]], l2[[n]]}], {n, Length[l1]}]

which gives:

{a, 2, c, 4, e, f}

Is there a more efficient way to do this? And if so, can it also work on multidimensional lists? Thanks a lot!

Combined network

Can someone help me find a reference on how to describe the connectivity between the nodes and users in the combined network? I mean, how exactly can I draw the connection for any m nodes and end users and degree of connectivity r?

List manipulation – How are NDSolve interpolation functions combined?

In the following working example

   s = NDSolve[{F'[r] == Sin[200*r]*x[r], x'[r] == F[r]*r^2, F[0] == 1, 
   x[0] == 11/10}, {F, x}, {r, 0, 1},


   Method -> "ExplicitRungeKutta",
   WorkingPrecision -> 100, AccuracyGoal -> 31, PrecisionGoal -> 31, 
   InterpolationOrder -> All, MaxSteps -> 10^6];    


   FF = First[F /. s];
   xx = First[x /. s];

NDSolve returns two functions F[r] and x[r] with an accuracy of approximately 30 decimal digits,

x[r] is a monotonously increasing function of r so you can basically combine F[r] and x[r] to get F[x],

I know that x[r] is something like {{r1,x1},{r2,x2},{r3,x3},...} and f[r] is something like {{r1,f1},{r2,f2},{r3,f3},...}, So I have to get the second column of every function and every construct {{x1,f1},{x2,f2},{x3,f3},...},

However, I have not yet figured out how.

My problem is that I already have such interpolations F[r]and x[r]is stored in .txt Shape with and accuracy of 30 decimal digits and I need F[x] with the same accuracy,

If there is no easy solution, I have to start from the beginning.

Availability Groups – Auto Seeding SQL Server AG Combined with Backup / Restore

Are there special conditions under which the following paragraph of MS Docs applies? I tested this process and found that databases were out of sync / recovery pending and could not be removed from this state.

Combine Backup Restore with Auto Seeding

"It's possible to combine traditional backup, copy, and restore with automatic seeding, in which case you must first restore the database to a secondary replica with all available transaction logs, then enable automatic seeding when you create an availability group. to catch status "The secondary replica database as if a final log backup had been restored (see End-Log Backups (SQL Server))."

ntfs – Why is "Pass through Folder" and "Execute File" a combined permission?

In the Advanced Permissions dialog box for an NTFS directory, one of the permissions is listed as "Browse Folder / Execute File".

These seem to me to be two separate and completely independent concepts.

Can anyone give an explanation / explanation why these two concepts have been combined into a single permission? Obviously, official documentation would be the best, but I accept well-founded assumptions.

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Feuerhimmel
Reviewed by Feuerhimmel on
,
[Vn5socks.net] Auto Update 24/7 – Good Socks 7h40 PM
LIVE ~ 133.167.100.251:9050 | 0.07 | Unknown | Unknown | Unknown | Japan | Checked at vn5socks.net
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LIVE ~ 220.79.34.109:2018 | 0.128 | Seoul | 11 | Unknown | Korea, Republic of | Checked at vn5socks.net
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Rating: 5

,

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Feuerhimmel
Reviewed by Feuerhimmel on
,
[Vn5socks.net] Automatic update 24/7 – Good socks 11.45 o'clock
LIVE ~ 167.99.68.43:9000 | 0.04 | Fort Worth | TX | 76104 | United States | Checked at vn5socks.net
LIVE ~ 167.71.146.116:9050 | 0,268 | New York | NY | 10020 | United States | Checked at vn5socks.net
LIVE ~ 91.221.70.248:9100 | 0,295 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 220.79.34.109:2018 | 0,102 | Seoul | 11 | Unknown | Korea, Republic of | Checked at vn5socks.net
LIVE ~ 133.167.100.251:9050 | 0.07 | Unknown |

Rating: 5

,