Add .devcontainer.json and Dockerfile

Author: jarofgreen

.devcontainer.json

@@ -0,0 +1,15 @@
+{
+	"name": "Flatten Tool Python Dev Container",
+	"build": {
+        "dockerfile": "Dockerfile",
+		"context": "."
+	},
+	"customizations": {
+		"vscode": {
+			"extensions":["ms-python.python"]
+		}
+	},
+	"remoteUser": "dev",
+	"workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind",
+	"workspaceFolder": "/workspace"
+}

Dockerfile

@@ -0,0 +1,19 @@
+FROM python:3.12
+
+RUN addgroup --gid 2000 dev
+RUN adduser --uid 2000 --gid 2000 --gecos "" --disabled-password dev
+
+USER dev:dev
+
+COPY requirements_dev.txt /workspace/
+COPY setup.py /workspace/
+COPY flattentool /workspace/flattentool
+COPY flatten-tool /workspace/
+
+WORKDIR /workspace
+
+RUN pip3 install --user -r /workspace/requirements_dev.txt
+
+RUN /bin/bash -c "echo \"export PATH=\$PATH:/home/dev/.local/bin/\" >> ~/.bashrc"
+
+CMD ["bash"]