Switch to conda environment

.devcontainer/Dockerfile

@@ -1,2 +1,16 @@
-# r2u only supports amd64
-FROM --platform=linux/amd64 mcr.microsoft.com/devcontainers/base:focal
+FROM mcr.microsoft.com/devcontainers/miniconda:0-3
+
+# Copy environment.yml (if found) to a temp location so we update the environment. Also
+# copy "noop.txt" so the COPY instruction does not fail if no environment.yml exists.
+COPY environment.yml* .devcontainer/noop.txt /tmp/conda-tmp/
+RUN if [ -f "/tmp/conda-tmp/environment.yml" ]; then umask 0002 && /opt/conda/bin/conda env update -n base -f /tmp/conda-tmp/environment.yml; fi \
+    && rm -rf /tmp/conda-tmp
+
+# [Optional] Uncomment to install a different version of Python than the default
+# RUN conda install -y python=3.6 \
+#     && pip install --no-cache-dir pipx \
+#     && pipx reinstall-all
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>

.devcontainer/devcontainer.json

@@ -1,47 +1,30 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/rocker-org/devcontainer-templates/tree/main/src/r2u
+// README at: https://github.com/devcontainers/templates/tree/main/src/miniconda
 {
-	"name": "R (r2u and bspm configured)",
-	"build": {
+	"name": "Miniconda (Python 3)",
+	"build": { 
+		"context": "..",
 		"dockerfile": "Dockerfile"
 	},
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"Posit.shiny-python"
+			]
+		}
+	}
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
-	"features": {
-		// A Feature to configure R on Ubuntu. More info: https://github.com/rocker-org/devcontainer-features/tree/main/src/r-apt.
-		"ghcr.io/rocker-org/devcontainer-features/r-apt:0": {
-			"vscodeRSupport": "full",
-			"installDevTools": true,
-			"installRMarkdown": true,
-			"installRadian": true,
-			"installVscDebugger": true,
-			"installBspm": true,
-		}
-	},
+	// "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": "./requirements_sudo.sh",
+	// "postCreateCommand": "python --version",
 
 	// Configure tool-specific properties.
-	"customizations": {
-		// Settings for VS Code.
-		"vscode": {
-			"extensions": [
-				"RDebugger.r-debugger",
-				"ms-python.python",
-				"Posit.shiny-python",
-				"ms-azuretools.vscode-docker"
-			],
-			"settings": {
-				"r.rterm.linux": "/usr/local/bin/radian",
-				"r.bracketedPaste": true,
-				"r.plot.useHttpgd": true
-			}
-		}
-	},
+	// "customizations": {},
 
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
 	// "remoteUser": "root"

.devcontainer/environment.yml

@@ -0,0 +1 @@
+../environment.yml

.devcontainer/noop.txt

@@ -0,0 +1,3 @@
+This file is copied into the container along with environment.yml* from the
+parent folder. This is done to prevent the Dockerfile COPY instruction from 
+failing if no environment.yml is found.