chore: add devcontainer support to ease the setup of the dev workst…

…ation with `python`, `ollama`, etc

When opening the project in `VSCode` or `IntellJ`, provided user has Docker installed and the **[DevContainer(https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers)]**
This will automatically:

- Install Python 3
- Create the Venv `.source.venv` and print instructions to activate it
- (VSCodde) Automatically setup the Python Interpreter from the venv
- (VSCode) Install the `Jupyter` extension and enabled `Python` support
- Download and Start `Ollama Server`
- Pull some LLMs (`llama2` by defaut)

.devcontainer/devcontainer.json

@@ -0,0 +1,55 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
+{
+	"name": "SFEIR School LangChain",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/typescript-node:1-20-bullseye",
+	"features": {
+		"ghcr.io/devcontainers/features/common-utils:2": {
+			"installZsh": true,
+			"installOhMyZsh": true,
+			"installOhMyZshConfig": true,
+			"upgradePackages": true,
+			"username": "automatic",
+			"userUid": "automatic",
+			"userGid": "automatic"
+		},
+		"ghcr.io/devcontainers/features/python:1": {
+			"installTools": true,
+			"installJupyterlab": true,
+			"version": "3.12"
+		}
+	},
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "./.devcontainer/postCreateCommand.sh",
+
+	// Use 'postCreateCommand' to run commands after the container is started.
+	"postStartCommand": "./.devcontainer/postStartCommand.sh",
+
+	// Configure tool-specific properties.
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"mhutchie.git-graph",
+				"anweber.reveal-button",
+				"ms-python.python",
+				"ms-python.debugpy",
+				"ms-toolsai.jupyter"
+			],
+			"settings":{
+				"python.pythonPath": "./.school.venv/bin/python",
+				"debug.javascript.autoAttachFilter": "onlyWithFlag"
+			}
+		}
+	}
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/postCreateCommand.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+# Installing Node Modules
+#npm ci
+
+# Installing Ollama
+
+echo "⬇️ Downloading and Installing Ollama Server..."
+curl https://ollama.ai/install.sh | sh
+
+# Create the virtual environment (if missing)
+if [ ! -f .school.venv/bin/activate ]; then
+    echo "➕ Creating the virtual environment (.school.venv)..."
+    virtualenv .school.venv
+fi
+
+echo "✅ Setup done" 
+
+# Activate the virtual environment for this terminal session
+echo ""
+echo "Please don't forget to run the following command in your terminal..."
+echo "⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️"
+echo "source .school.venv/bin/activate"
+echo "⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️"
+echo "...(to activate the virtual env) before installing Python dependencies!"
+echo ""

.devcontainer/postStartCommand.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# Starting Ollama Server
+echo "🏃🏿‍♂️ Starting Ollama Server..."
+ollama serve & 
+
+echo "⬇️ Pulling LLMs..."
+ollama pull llama2
+#ollama pull mistral
+#ollama pull codellama
+
+echo "✅ Local LLMs Setup done!" 
+
+
+# Activate the virtual environment for this terminal session
+echo ""
+echo "Please don't forget to run the following command in your terminal..."
+echo "⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️"
+echo "source .school.venv/bin/activate"
+echo "⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️"
+echo "...(to activate the virtual env) before installing Python dependencies!"
+echo ""

.gitignore

@@ -69,4 +69,5 @@ typings/
 #Dev
 docs/test.html
 
-.venv*
+.venv*
+.school.venv