Add env docker meta (#83)

* experiment

* Fix building

* Fix script

build.ps1

@@ -37,20 +37,22 @@ param(
     [switch]$push
 )
 
+$basetags = @()
+
+$regstryid = $(& (Get-Command 'docker').source run --rm -d -p 8192:5000 registry:2)
+
+ForEach($platform in $platforms.Split(",")) {
     $arguments = @(
         'buildx',
         'build'
     )
 
-$arguments += $push -eq $True ? @("--push") : @()
-
     $arguments += $progress -ne 'plain' ? @("--progress=$progress") : @("--progress=plain")
 
-$tags.Count -ne 0 ? ($tags | ForEach-Object { $arguments += @("--tag=$_") }) : ""
-
-$arguments += $tag -ne '' ? @("--tag=$tag") : @()
+    $intermediatetag = "localhost:8192/intermediate:$($platform.Replace("/", "-"))"
 
     $arguments += @(
+        "--tag=${intermediatetag}",
         "--build-arg=NODE_VERSION=${node}",
         "--build-arg=DISTRO=${distro}",
         "--build-arg=TYPE=${type}",
@@ -65,8 +67,55 @@ $arguments += @(
         "--build-arg=FROM_IMAGE=${from_image}",
         "--build-arg=FROM_TAG=${from_tag}",
         "--file=./linux/${image}/Dockerfile",
-    "--platform=${platforms}",
+        "--platform=${platform}",
+        "--load",
         '.'
     )
 
     & (Get-Command 'docker').source $arguments
+
+    # Not using buildx here, because buildx doesn't like a localhost registry
+    $arguments = @(
+        'build'
+    )
+
+    $arguments += $progress -ne 'plain' ? @("--progress=$progress") : @("--progress=plain")
+
+    $imageid = $(& (Get-Command 'docker').source create "${intermediatetag}")
+
+    $envfileContent = $(& (Get-Command 'docker').source cp "${imageid}:/etc/environment" - | tar x --to-stdout)
+
+    & (Get-Command 'docker').source rm "${imageid}"
+
+    echo "FROM ${intermediatetag}" > Dockerfile.tmp
+
+    ForEach($envline in $envfileContent.Split("\n")) {
+        echo "ENV $envline" >> Dockerfile.tmp
+    }
+
+    $arguments += @(
+        "--tag=${intermediatetag}",
+        "--file=./Dockerfile.tmp",
+        '.'
+    )
+
+    & (Get-Command 'docker').source $arguments
+
+    & (Get-Command 'docker').source push ${intermediatetag}
+
+    $basetags += @("${intermediatetag}")
+}
+
+$arguments = @()
+
+if($push -ne $true) {
+   $arguments += @("--dry-run")
+}
+
+$tags.Count -ne 0 ? ($tags | ForEach-Object { $arguments += @("--tag=$_") }) : ""
+
+$arguments += $tag -ne '' ? @("--tag=$tag") : @()
+
+& (Get-Command 'docker').source buildx imagetools create $arguments $basetags
+
+& (Get-Command 'docker').source stop $regstryid