Dev Container: Add a post create shell script for post-creation actions (#12)

* A post-create script that gets executed when the container first launches

* Post create shell script

Co-authored-by: Uffaz <uffaz@Uffazs-MacBook-Pro.local>

.devcontainer/Dockerfile

@@ -1,3 +1,7 @@
 # [Choice] .NET version: 6.0, 5.0, 3.1, 6.0-bullseye, 5.0-bullseye, 3.1-bullseye, 6.0-focal, 5.0-focal, 3.1-focal
 ARG VARIANT="6.0"
 FROM mcr.microsoft.com/vscode/devcontainers/dotnet:${VARIANT}
+
+COPY ./scripts/post-create.sh /benchpress/
+RUN chmod +x /benchpress/post-create.sh
+

.devcontainer/devcontainer.json

@@ -57,7 +57,7 @@
 	//   1. Mega Linter
 	//   2. Pester
 	//   3. Configures benchpress Python module
-	"postCreateCommand": "npm install -g mega-linter-runner && pwsh -command Install-Module -Name Pester -Force -SkipPublisherCheck && pip install --editable ./framework/python/",
+	"postCreateCommand": "/benchpress/post-create.sh",
 
 	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
 	"remoteUser": "vscode",
@@ -85,3 +85,4 @@
 		}
 	}
 }
+

.devcontainer/scripts/post-create.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# Install Mega Linter
+npm install -g mega-linter-runner
+
+# Install Pester
+pwsh -command Install-Module -Name Pester -Force -SkipPublisherCheck
+
+# Configures benchpress Python module
+pip install --editable ./framework/python/