feat: Add Terraform devcontainer configuration

templates/terraform/.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/base:jammy
+
+

templates/terraform/.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/devcontainers/templates/tree/main/src/ubuntu
+{
+  "name": "Ubuntu",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "build": {
+    // Path is relative to the devcontainer.json file.
+    "dockerfile": "Dockerfile"
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/common-utils": {},
+    "ghcr.io/devcontainers/features/terraform:1": {},
+    "ghcr.io/devcontainers/features/aws-cli:1": {},
+    "ghcr.io/devcontainers/features/azure-cli:1":{},
+    "ghcr.io/dhoeric/features/google-cloud-cli:1":{},
+    // "./local-features/ubuntu-dev": "latest"
+  },
+  "runArgs": ["--device=/dev/net/tun"]
+
+  // 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": "uname -a",
+
+  // Configure tool-specific properties.
+  // "customizations": {},
+
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
+}

templates/terraform/Makefile

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+build:
+	devcontainer build --workspace-folder .