Devcontainer (#63)

* Add universal devcontainer image, install R.

* Add "postCreateCommand": "make"

.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/vscode/devcontainers/universal:1.7.5-linux
+
+# Set environment variables to avoid interactive prompts during package installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# # Update and install necessary packages
+RUN apt-get update && \
+    apt-get install -y \
+    software-properties-common \
+    wget \
+    gnupg2 \
+    lsb-release \
+    apt-transport-https \
+    ca-certificates \
+    libcurl4-openssl-dev \
+    libssl-dev \
+    libxml2-dev
+
+# # Install R
+RUN  apt-get install -y r-base
+
+# # Install PHP
+# RUN add-apt-repository ppa:ondrej/php && \
+#     apt-get update && \
+#     apt-get install -y php7.4
+
+# # Install Lighttpd
+# RUN apt-get update && \
+#     apt-get install -y lighttpd

.devcontainer/devcontainer.json

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+{
+	"name": "Universal with PostgreSQL",
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "app",
+	"workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}",
+
+    // Features to add to the dev container. More info: https://containers.dev/features.
+	"features": {
+        // "ghcr.io/shyim/devcontainers-features/php:latest": {
+        //     "version": "7.4",
+        //     "extensionsExtra": "xdebug redis"
+        // }
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// This can be used to network with other containers or the host.
+	// "forwardPorts": [5000, 5432],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "make"
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/docker-compose.yml

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+version: '3.8'
+
+services:
+  app:
+    build:
+      context: ..
+      dockerfile: .devcontainer/Dockerfile
+
+    volumes:
+      - ../..:/workspaces:cached
+
+    # Overrides default command so things don't shut down after the process ends.
+    command: sleep infinity
+
+    # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
+    network_mode: service:db
+
+    # Use "forwardPorts" in **devcontainer.json** to forward an app port locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+  db:
+    image: postgres:latest
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_DB: postgres
+      POSTGRES_PASSWORD: postgres
+
+    # Add "forwardPorts": ["5432"] to **devcontainer.json** to forward PostgreSQL locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+volumes:
+  postgres-data: