Language-Specific Dev Container Guides#

Comprehensive setup guides for each supported programming language in the DevOps-OS dev container.

Python#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages python \
  --python-version 3.12 \
  --build-tools make \
  --code-analysis-tools pylint,sonarqube
{
  "languages": {
    "python": true
  },
  "cicd": {
    "docker": true,
    "github_actions": true
  },
  "build_tools": {
    "make": true
  },
  "code_analysis": {
    "pylint": true,
    "sonarqube": true
  }
}

Included Tools#

  • Runtime: Python 3.12 (configurable)
  • Package Manager: pip, poetry (optional)
  • Testing: pytest with coverage
  • Linting: pylint, black, isort
  • IDE: VS Code with Python extension, Pylance

Common Workflows#

# Create a FastAPI + async development environment
python -m devops_os.core.scaffold_devcontainer \
  --languages python \
  --cicd-tools docker,github_actions \
  --code-analysis-tools pylint \
  --build-tools make

# Data science with Python
python -m devops_os.core.scaffold_devcontainer \
  --languages python \
  --python-version 3.12 \
  --build-tools make

JavaScript / Node.js#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages javascript,node \
  --node-version 22 \
  --build-tools make \
  --code-analysis-tools eslint
{
  "languages": {
    "javascript": true,
    "node": true,
    "typescript": true
  },
  "cicd": {
    "docker": true,
    "github_actions": true
  },
  "code_analysis": {
    "eslint": true
  }
}

Included Tools#

  • Runtime: Node.js 22 (configurable)
  • Package Manager: npm, yarn
  • Testing: Jest, Mocha, Vitest
  • Linting: ESLint, Prettier
  • IDE: VS Code with ESLint, Prettier extensions

Common Workflows#

# React + TypeScript development
python -m devops_os.core.scaffold_devcontainer \
  --languages javascript,typescript,node \
  --cicd-tools docker,github_actions \
  --code-analysis-tools eslint

# Full-stack application (Node.js + React)
python -m devops_os.core.scaffold_devcontainer \
  --languages javascript,typescript,node \
  --cicd-tools docker,github_actions,terraform \
  --kubernetes-tools kubectl,helm,k9s

Go#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages go \
  --go-version 1.25.0 \
  --cicd-tools docker,github_actions
{
  "languages": {
    "go": true
  },
  "cicd": {
    "docker": true,
    "github_actions": true,
    "terraform": true
  },
  "kubernetes": {
    "kubectl": true,
    "helm": true
  }
}

Included Tools#

  • Runtime: Go 1.25.0 (configurable)
  • Package Manager: Go modules
  • Testing: go test, testify
  • Build: go build, goreleaser
  • IDE: VS Code with Go extension, delve debugger

Common Workflows#

# Microservice development with Kubernetes
python -m devops_os.core.scaffold_devcontainer \
  --languages go \
  --cicd-tools docker,terraform,kubectl,helm \
  --kubernetes-tools k9s,kustomize,argocd_cli

# CLI tool development
python -m devops_os.core.scaffold_devcontainer \
  --languages go \
  --cicd-tools docker,github_actions

Java#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages java \
  --java-version 21 \
  --build-tools maven,gradle
{
  "languages": {
    "java": true
  },
  "cicd": {
    "docker": true,
    "jenkins": true,
    "github_actions": true
  },
  "build_tools": {
    "maven": true,
    "gradle": true
  }
}

Included Tools#

  • Runtime: OpenJDK 21 (configurable)
  • Build: Maven 3.9+, Gradle 8.4+
  • Testing: JUnit 5, Testcontainers
  • IDE: VS Code with Java Pack, Maven, Gradle extensions
  • Debugging: Remote debugging support

Common Workflows#

# Spring Boot microservice
python -m devops_os.core.scaffold_devcontainer \
  --languages java \
  --java-version 21 \
  --build-tools maven \
  --cicd-tools docker,github_actions,kubernetes

# Enterprise application with Jenkins
python -m devops_os.core.scaffold_devcontainer \
  --languages java \
  --java-version 21 \
  --build-tools gradle \
  --cicd-tools docker,jenkins

Rust#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages rust \
  --rust-version latest
{
  "languages": {
    "rust": true
  },
  "cicd": {
    "docker": true,
    "github_actions": true
  }
}

Included Tools#

  • Runtime: Rust (latest toolchain)
  • Package Manager: Cargo
  • Testing: cargo test
  • Toolchain: rustup, cargo-fmt, cargo-clippy
  • IDE: VS Code with rust-analyzer

Common Workflows#

# System programming with Kubernetes integration
python -m devops_os.core.scaffold_devcontainer \
  --languages rust \
  --cicd-tools docker,github_actions \
  --kubernetes-tools kubectl,helm

# CLI tool development
python -m devops_os.core.scaffold_devcontainer \
  --languages rust \
  --cicd-tools docker,github_actions

Ruby#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages ruby \
  --ruby-version 3.3
{
  "languages": {
    "ruby": true
  },
  "cicd": {
    "docker": true,
    "github_actions": true
  }
}

Included Tools#

  • Runtime: Ruby 3.3 (configurable)
  • Package Manager: Bundler, RubyGems
  • Testing: RSpec, Minitest
  • Web Frameworks: Rails, Sinatra, Hanami
  • IDE: VS Code with Ruby extension

C / C++#

Quick Start#

python -m devops_os.core.scaffold_devcontainer \
  --languages c,cpp \
  --build-tools cmake,make
{
  "languages": {
    "c": true,
    "cpp": true
  },
  "build_tools": {
    "cmake": true,
    "make": true
  },
  "cicd": {
    "docker": true,
    "github_actions": true
  }
}

Included Tools#

  • Compilers: GCC, Clang
  • Build: CMake, Make
  • Testing: Google Test (GTest), Catch2
  • Debugging: GDB, LLDB
  • IDE: VS Code with C++ Tools, CMake Tools

Common Workflows#

# System programming with containers
python -m devops_os.core.scaffold_devcontainer \
  --languages c,cpp \
  --build-tools cmake \
  --cicd-tools docker,github_actions

# Embedded systems development
python -m devops_os.core.scaffold_devcontainer \
  --languages c \
  --build-tools cmake,make

Multi-Language Projects#

Full-Stack Application (Backend + Frontend)#

# Python backend + React frontend
python -m devops_os.core.scaffold_devcontainer \
  --languages python,javascript,typescript,node \
  --cicd-tools docker,github_actions,terraform \
  --kubernetes-tools kubectl,helm,k9s \
  --devops-tools prometheus,grafana

Microservices Architecture#

# Go services + Python automation + TypeScript admin dashboard
python -m devops_os.core.scaffold_devcontainer \
  --languages go,python,typescript,node \
  --cicd-tools docker,terraform,kubectl,helm \
  --kubernetes-tools k9s,kustomize,argocd_cli,flux \
  --devops-tools prometheus,grafana,elk

Legacy System Modernization#

# Java legacy + Go new services + Python scripts
python -m devops_os.core.scaffold_devcontainer \
  --languages java,go,python \
  --build-tools maven,gradle,make \
  --cicd-tools docker,jenkins,github_actions \
  --kubernetes-tools kubectl,helm

Environment Variables#

All configuration can be set via environment variables for CI/CD integration:

export DEVOPS_OS_DEVCONTAINER_LANGUAGES=python,go
export DEVOPS_OS_DEVCONTAINER_CICD_TOOLS=docker,github_actions
export DEVOPS_OS_DEVCONTAINER_PYTHON_VERSION=3.12
export DEVOPS_OS_DEVCONTAINER_GO_VERSION=1.25.0

python -m devops_os.core.scaffold_devcontainer

Best Practices#

  1. Use version pinning for reproducible environments
  2. Include build tools that your project needs
  3. Enable code analysis for quality gates
  4. Add DevOps tools for local testing of infrastructure
  5. Mount Docker socket for container operations
  6. Forward ports for services you’re developing or testing
  7. Use environment variables for CI/CD automation

Troubleshooting#

“Tool X not found in container”#

Ensure the tool is enabled in devcontainer.env.json and rebuild:

# Edit .devcontainer/devcontainer.env.json to set tool to true
# Then rebuild
code . # Open in VS Code
# Run: Dev Containers: Rebuild Container

Port already in use#

If a forwarded port is already in use on your host, either:

  1. Stop the conflicting service
  2. Modify the port mapping in devcontainer.json
  3. Use a different .devcontainer/ directory for different projects

Docker socket permission denied#

Ensure Docker socket is properly mounted. Check your devcontainer.json:

{
  "mounts": ["source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind"]
}

See Also#

Backward MCP Dev Container Setup AI Integration Forward