Move linux provision scripts to virtual-environments (#1714)

* add linux-related scripts from MMS provisioner

* removed EOL

* removed Ubuntu condition

* moved PATH checking to cleanup section

* add clarification for cgroups names

* names alignment

* removed memory-configuration and agent specific scripts

* renamed folder to psot-generation, added template instructions

* moved key import to git installation

* moved PATH check to post-deployment instead of cleanup script

* add scripts

* output tests file

* add startup logic

* add powershell module for furute helpers

* removed unused modules

* copy to tmp folder because of permissions, copy to opt on post-generation step

* removed Pester test

* change post-generation location

* incorrect if statement

Co-authored-by: Leonid Lapshin <originalnoe-nazvanie@yandex.ru>

images/linux/post-generation/homebrew-permissions.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Fix permissions for Homebrew
+# https://github.com/actions/virtual-environments/issues/1568
+brew_folder="/home/linuxbrew/"
+if [ -d "$brew_folder" ]; then
+    brew_folder_owner=$(ls -ld $brew_folder | awk '{print $3}')
+    if [ "$USER" != "$brew_folder_owner" ]; then
+        chown "$USER":docker -R $brew_folder
+    fi
+fi

images/linux/post-generation/rust-permissions.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Fix permissions for the Rust folder
+# https://github.com/actions/virtual-environments/issues/572
+rust_folder="/usr/share/rust"
+if [ -d "$rust_folder" ]; then
+    rust_folder_owner=$(ls -ld $rust_folder | awk '{print $3}')
+    if [ "$USER" != "$rust_folder_owner" ]; then
+        chown "$USER":docker -R $rust_folder
+    fi
+fi