how to transform the structure of a object - object

Question

I have one complicated object in terraform, the structure as below
what I need to do is transform this structure into another one(I have posted the desired structure) then create the resource with foreach in terraform
StorageSettings{
storage{
fileshare{
directories{}
}
}
}
actual code here
locals {
StorageSettings = {
CoreBackup = {
fileshare = {
shareA = {
name = "myshare"
storage_account_name = "sa1corebackup"
quota = 100
directories = {
dirA = {
name = "app"
share_name = "myshare"
storage_account_name = "sa1corebackup"
}
}
}
shareB = {
name = "myshare2"
storage_account_name = "sa1corebackup"
quota = 150
}
}
}
MGMTackup = {
fileshare = {
ShareA = {
name = "myshare"
storage_account_name = "mgmtbackup"
quota = 200
enabled_protocol = "SMB"
acl = {
id = "MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTI"
access_policy = {
permissions = "rwdl"
start = "2019-07-02T09:38:21.0000000Z"
expiry = "2019-07-02T10:38:21.0000000Z"
}
}
directories = {
dirA = {
name = "app"
share_name = "myshare"
storage_account_name = "mgmtbackup"
}
dirB = {
name = "backup"
share_name = "myshare"
storage_account_name = "mgmtbackup"
}
}
}
ShareB = {
name = "myshare2"
storage_account_name = "mgmtbackup"
quota = 100
enabled_protocol = "SMB"
acl = {
id = "MTIzNDU2Nzg5MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTI"
access_policy = {
permissions = "rwdl"
start = "2019-07-02T09:38:21.0000000Z"
expiry = "2019-07-02T10:38:21.0000000Z"
}
}
directories = {
dirA = {
name = "app"
share_name = "myshare"
storage_account_name = "mgmtbackup"
}
dirB = {
name = "backup"
share_name = "myshare"
storage_account_name = "mgmtbackup"
}
}
}
}
}
}
}
My question is how to transform the structure to the below one?
storage+fileshare{
directories{
}
}
I tried the below code
filesharesettings = { for p, v in local.StorageSettings : p => v.fileshare if try(v.fileshare, null) != null }
directorysettings = {
for Storage, FileShareSettings in local.filesharesettings : Storage =>
{ for FileShare, FileShareSetting in FileShareSettings : "${Storage} ${FileShare}" => FileShareSetting.directories if lookup(FileShareSetting, "directories", "") != "" }
}
but only get the result like this
storage{
storage+fileshare{
directories{
}
}
}
current output as below,
please note it's not my expect output, I tried to convert the structure with some code(already posted), and below is the output, my expect output structure is this
storage+fileshare{
directories{
}
}
Changes to Outputs:
+ dd = {
+ CoreBackup = {
+ CoreBackup shareA = {
+ dirA = {
+ name = "app"
+ share_name = "myshare"
+ storage_account_name = "sa1corebackup"
}
}
}
+ MGMTackup = {
+ MGMTackup ShareA = {
+ dirA = {
+ name = "app"
+ share_name = "myshare"
+ storage_account_name = "mgmtbackup"
}
+ dirB = {
+ name = "backup"
+ share_name = "myshare"
+ storage_account_name = "mgmtbackup"
}
}
+ MGMTackup ShareB = {
+ dirA = {
+ name = "app"
+ share_name = "myshare"
+ storage_account_name = "mgmtbackup"
}
+ dirB = {
+ name = "backup"
+ share_name = "myshare"
+ storage_account_name = "mgmtbackup"
}
}
}
}
Could anyone kindly help me out here?

Answer 1

Your data source is rather complex, but I think you can do that using three for loops:
directorysettings = merge(
flatten([for storage_name, fileshares in local.StorageSettings:
{for share_name, share in fileshares["fileshare"]:
"${storage_name}+${share_name}" => {
for directory_name, directory in share["directories"]:
directory_name => directory
} if lookup(share, "directories", "") != ""
}
])...)
which gives directorysettings:
{
"CoreBackup+shareA" = {
"dirA" = {
"name" = "app"
"share_name" = "myshare"
"storage_account_name" = "sa1corebackup"
}
}
"MGMTackup+ShareA" = {
"dirA" = {
"name" = "app"
"share_name" = "myshare"
"storage_account_name" = "mgmtbackup"
}
"dirB" = {
"name" = "backup"
"share_name" = "myshare"
"storage_account_name" = "mgmtbackup"
}
}
"MGMTackup+ShareB" = {
"dirA" = {
"name" = "app"
"share_name" = "myshare"
"storage_account_name" = "mgmtbackup"
}
"dirB" = {
"name" = "backup"
"share_name" = "myshare"
"storage_account_name" = "mgmtbackup"
}
}
}