Add debugging in container

Author: buybackoff

src/rust/.devcontainer/Dockerfile

@@ -0,0 +1,39 @@
+FROM rust:1
+
+# Avoid warnings by switching to noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils 2>&1 \
+    #
+    # Verify git, needed tools installed
+    && apt-get -y install git procps lsb-release \
+    #
+    # Install other dependencies
+    && apt-get install -y lldb-3.9 \
+    #
+    # Install clang
+    # From https://gist.github.com/twlz0ne/9faf00346a2acf10044c54f9ba0b9805#file-dockerfile
+    && apt-get update && apt-get install -y gnupg wget software-properties-common \
+    && wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - \
+    && apt-add-repository "deb http://apt.llvm.org/stretch/ llvm-toolchain-stretch-6.0 main" \
+    && apt-get update && apt-get install -y clang-6.0 \
+    #
+    # Install CMake
+    && wget https://cmake.org/files/v3.8/cmake-3.8.2-Linux-x86_64.sh \
+    && mkdir /opt/cmake \
+    && sh cmake-3.8.2-Linux-x86_64.sh --prefix=/opt/cmake --skip-license \
+    && ln -s /opt/cmake/bin/cmake /usr/local/bin/cmake \
+    #
+    # Install Rust components
+    && rustup update \
+    && rustup component add rls rust-analysis rust-src \
+    #
+    # Clean up
+    && apt-get autoremove -y \
+    && apt-get clean -y \
+    && rm -rf /var/lib/apt/lists/*
+
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

src/rust/.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+{
+	"name": "Rust",
+	"dockerFile": "Dockerfile",
+	"appPort": 9000,
+	"extensions": [
+		"rust-lang.rust",
+		"bungcip.better-toml",
+		"vadimcn.vscode-lldb"
+	],
+	"runArgs": [
+		"--cap-add=SYS_PTRACE",
+		"--security-opt",
+		"seccomp=unconfined"
+	],
+	"settings": {
+		"lldb.executable": "/usr/bin/lldb-3.9",
+		"terminal.integrated.shell.linux": "/bin/bash"
+	}
+}

src/rust/.vscode/launch.json

@@ -15,6 +15,23 @@
       "cwd": "${workspaceFolder}",
       "environment": [],
       "externalConsole": false
+    },
+    {
+        "type": "lldb",
+        "request": "launch",
+        "name": "Rust Sandbox Container",
+        "cargo": {
+            "args": [
+                "build",
+                "--bin=sandbox",
+                "--package=sandbox",
+                "--manifest-path=Cargo.toml"
+            ],
+            "filter": {
+                "kind": "bin"
+            }
+        },
+        "args": []
     }
   ]
 }