add devcontainer

.devcontainer/Dockerfile

@@ -0,0 +1,25 @@
+FROM ubuntu:22.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt update && apt install -y --no-install-recommends \
+    ca-certificates \
+    git \
+    openssh-client \
+    build-essential \
+    pkg-config \
+    cmake \
+    clang-tidy \
+    valgrind \
+    libgtest-dev \
+    libgmock-dev \
+    libfuse3-dev \
+    libwebsockets-dev
+
+ARG USERNAME=user
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+
+RUN groupadd --gid $USER_GID $USERNAME
+RUN useradd --uid $USER_UID --gid $USER_GID -m $USERNAME
+
+USER $USERNAME

.devcontainer/devcontainer.json

@@ -0,0 +1,23 @@
+{
+    "build": {
+        "dockerfile": "Dockerfile",
+        "context": ".."
+    },
+    "capAdd": "SYS_ADMIN",
+    "runArgs":["--device", "/dev/fuse"], 
+    "mounts": [{"source": "${localEnv:HOME}/.ssh", "target": "/home/user/.ssh", "type": "bind"}],
+    
+    "remoteUser": "user",
+
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "ms-vscode.cpptools-extension-pack",
+                "ms-vscode.cmake-tools"
+            ],
+            "settings": {
+                "terminal.integrated.defaultProfile.linux": "bash"
+            }
+        }
+    }
+}