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Cpp Deploy

DevOps & Security
cpp-deploy

Cpp Deploy is an Agent Skill for devops & security published in the nixopus/nixopus repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Build and deploy C/C++ applications — CMake, Meson, Ninja, and Dockerfile patterns. Use when deploying a C or C++ project, or when CMakeLists.txt or meson.build is detected.

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QUICK START

How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/nixopus/nixopus/blob/HEAD/api/skills/cpp-deploy/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/cpp-deploy, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

C/C++ Deployment

Detection

Project is C/C++ if CMakeLists.txt or meson.build exists in the root.

Versions

Latest CMake (or Meson) and Ninja installed during build. No explicit version pinning by default.

Build

Build Process

  1. Install CMake or Meson and Ninja
  2. Configure and build into ./build (or /build)
  3. Executable placed in the build directory

Start Command

Executable name matches the project root directory name, located in the build directory. Example: project my_app/ → ./build/my_app or /build/my_app.

Output

  • Build directory: /build (or ./build)
  • Source tree not included in final container; only build artifacts

Build Systems

FileBuild system
CMakeLists.txtCMake
meson.buildMeson

Both use Ninja as the default generator/backend.

Install Stage Optimization

Copy in order:

  • CMakeLists.txt or meson.build
  • meson.options (Meson)
  • src/, include/, or full source tree

Base Images

StageImage
Buildgcc or clang + CMake/Meson + Ninja
Runtimedebian:bookworm-slim or alpine (copy binary only)

Dockerfile Patterns

CMake

FROM gcc:13-bookworm AS build
RUN apt-get update && apt-get install -y cmake ninja-build && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY CMakeLists.txt ./
COPY src src
RUN cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release && cmake --build build

FROM debian:bookworm-slim
RUN apt-get update && apt-get install -y ca-certificates libstdc++6 && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=build /app/build/my_app .
EXPOSE 8080
CMD ["./my_app"]

Meson

FROM gcc:13-bookworm AS build
RUN apt-get update && apt-get install -y meson ninja-build && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY meson.build meson.options* ./
COPY src src
RUN meson setup build -Dbuildtype=release && ninja -C build

FROM debian:bookworm-slim
RUN apt-get update && apt-get install -y ca-certificates libstdc++6 && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=build /app/build/my_app .
EXPOSE 8080
CMD ["./my_app"]