Create devcontainer

.cargo/config.toml

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+[build]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]

.devcontainer/.env

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+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres
+POSTGRES_DB=postgres
+POSTGRES_HOSTNAME=localhost
+POSTGRES_PORT=5432

.devcontainer/Dockerfile

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+# [Choice] Debian OS version (use bullseye on local arm64/Apple Silicon): buster, bullseye
+ARG VARIANT="bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/rust:0-${VARIANT}
+
+# Include lld linker to improve build times either by using environment variable
+# RUSTFLAGS="-C link-arg=-fuse-ld=lld" or with Cargo's configuration file (i.e see .cargo/config.toml).
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+   && apt-get -y install clang lld \
+   && apt-get autoremove -y && apt-get clean -y

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/rust-postgres
+{
+	"name": "Rust and PostgreSQL",
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "app",
+	"workspaceFolder": "/workspace",
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			// Set *default* container specific settings.json values on container create.
+			"settings": { 
+				"lldb.executable": "/usr/bin/lldb",
+				// VS Code don't watch files under ./target
+				"files.watcherExclude": {
+					"**/target/**": true
+				},
+				"rust-analyzer.checkOnSave.command": "clippy"
+			},
+			
+			// Add the IDs of extensions you want installed when the container is created.
+			"extensions": [
+				"vadimcn.vscode-lldb",
+				"mutantdino.resourcemonitor",
+				"rust-lang.rust-analyzer",
+				"tamasfe.even-better-toml",
+				"serayuzgur.crates"
+			]
+		}
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [5432],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "rustc --version",
+
+	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode",
+	"features": {
+		"docker-in-docker": "latest"
+	}
+}

.devcontainer/docker-compose.yml

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+version: '3.8'
+
+volumes:
+  postgres-data:
+
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      args:
+        # Use the VARIANT arg to pick a Debian OS version: buster, bullseye
+        # Use bullseye when on local on arm64/Apple Silicon.
+        VARIANT:  bullseye
+    env_file:
+        # Ensure that the variables in .env match the same variables in devcontainer.json
+        - .env
+    # Security Opt and cap_add for C++ based debuggers to work.
+    # See `runArgs`: https://github.com/Microsoft/vscode-docs/blob/main/docs/remote/devcontainerjson-reference.md
+    # security_opt:
+    #   - seccomp:unconfined
+    # cap_add:
+    #   - SYS_PTRACE
+
+    volumes:
+      - ..:/workspace: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
+
+    # Uncomment the next line to use a non-root user for all processes.
+    # user: vscode
+
+    # 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:14.1
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    env_file:
+        # Ensure that the variables in .env match the same variables in devcontainer.json
+        - .env
+
+    # Add "forwardPorts": ["5432"] to **devcontainer.json** to forward PostgreSQL locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)

.vscode/settings.json

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+{
+    "workbench.colorCustomizations": {
+        "statusBar.background": "#1D856D",
+        "statusBar.foreground": "#fff",
+        "activityBar.background": "#1D856D",
+        "activityBar.foreground": "#fff"
+    },
+    "now.instance.user.name": "",
+    "now.instance.host.url": "",
+    "now.instance.OAuth.client.id": "",
+    "now.instance.user.password": "",
+    "now.instance.OAuth.client.secret": ""
+}

system/sn-workspace.json

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+{"ALL_APPLICATIONS":{},"ACTIVE_APPLICATION":""}