Install PowerShell Modules (#427)

* InstallBicep

* Add test for InstallBicep

* Install pwsh Modules

* Script rename

* Add -Command to test

* Check version

* Install the module for all users

* Adding terminating lines to scripts

* Update src/powershell/install.sh
Co-authored-by: Samruddhi Khandale <skhandale@microsoft.com>

* Update src/powershell/install.sh
Co-authored-by: Samruddhi Khandale <skhandale@microsoft.com>

* Removed comments in Readme

* Remove Bicep from PowerShell install

* Increased version number

* Update Minor version rather than patch

---------
Co-authored-by: Samruddhi Khandale <skhandale@microsoft.com>

src/powershell/devcontainer-feature.json

 {
     "id": "powershell",
-    "version": "1.0.6",
+    "version": "1.1.0",
     "name": "PowerShell",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/powershell",
     "description": "Installs PowerShell along with needed dependencies. Useful for base Dockerfiles that often are missing required install dependencies like gpg.",
@@ -14,8 +14,13 @@
             ],
             "default": "latest",
             "description": "Select or enter a version of PowerShell."
-        }
-    },
+        },
+        "modules": {
+            "type": "string",
+            "default": "",
+            "description": "Optional comma separated list of PowerShell modules to install."
+          }
+        },
     "installsAfter": [
         "ghcr.io/devcontainers/features/common-utils"
     ]

src/powershell/install.sh

@@ -13,6 +13,7 @@ set -e
 rm -rf /var/lib/apt/lists/*
 
 POWERSHELL_VERSION=${VERSION:-"latest"}
+POWERSHELL_MODULES="${MODULES}"
 
 MICROSOFT_GPG_KEYS_URI="https://packages.microsoft.com/keys/microsoft.asc"
 POWERSHELL_ARCHIVE_ARCHITECTURES="amd64"
@@ -149,6 +150,17 @@ if [ "${use_github}" = "true" ]; then
     install_using_github
 fi
 
+# If PowerShell modules are requested, loop through and install 
+if [ ${#POWERSHELL_MODULES[@]} -gt 0 ]; then
+    echo "Installing PowerShell Modules: ${POWERSHELL_MODULES}"
+    modules=(`echo ${POWERSHELL_MODULES} | tr ',' ' '`)
+    for i in "${modules[@]}"
+    do
+        echo "Installing ${i}"
+        pwsh -Command "Install-Module -Name ${i} -AllowClobber -Force -Scope AllUsers" || continue
+    done
+fi
+
 # Clean up
 rm -rf /var/lib/apt/lists/*
 

test/powershell/install_modules.sh

+#!/bin/bash
+
+set -e
+
+# Import test library for `check` command
+source dev-container-features-test-lib
+
+# Extension-specific tests
+check "az.resources" pwsh -Command "(Get-Module -ListAvailable -Name Az.Resources).Version.ToString()"
+check "az.storage" pwsh -Command "(Get-Module -ListAvailable -Name Az.Storage).Version.ToString()"
+
+# Report result
+reportResults

test/powershell/scenarios.json

+{
+  "install_modules": {
+    "image": "mcr.microsoft.com/devcontainers/base:jammy",
+    "features": {
+      "powershell": {
+        "modules": "az.resources, az.storage"
+      }
+    }
+  }
+}