Projects sharing features with Jepsen

Paramiko is a pure-Python implementation of the SSH2 protocol, providing a library for making secure network connections and executing remote commands. It serves as a programmatic interface for establishing encrypted communication tunnels and managing remote sessions. The project includes a full SSH server framework, allowing applications to host a secure shell server and define server-side access configurations directly within Python. It also provides a dedicated SFTP client library for secure file transfers and remote filesystem management. The library covers remote infrastructure automati

Axiom is a cloud infrastructure orchestrator and distributed security scanning framework. It serves as a manager for deploying, snapshotting, and destroying disposable virtual machine fleets across multiple cloud providers and regions. The project distinguishes itself by automating the provisioning of vulnerability toolsets and security auditing software across these remote servers. It features a mechanism for distributing security scans by sharding target lists across a fleet of instances and aggregating the resulting data into unified files and HTML reports. The system covers a broad range

Flutter Server Management App is a mobile application designed for monitoring and controlling remote servers through a graphical interface. It serves as a central hub for remote server administration, providing a visual way to manage Linux, Unix, and Windows systems. The application distinguishes itself by integrating mobile hardware features, such as biometric authentication and native push notifications, to secure and alert users about system contexts. It features a dedicated Docker container manager for controlling the lifecycle and status of containers and a server health monitor for trac

Ali is an HTTP load testing tool and traffic generator used to measure system performance and stability by sending high volumes of requests to a target URL. It functions as a performance metrics exporter and real-time visualizer, simulating client behavior through configurable request bodies, custom headers, and HTTP/2 support. The project provides real-time performance monitoring via interactive charts that plot latency and request percentiles as data is collected. It identifies system bottlenecks through a combination of live performance plotting and the exportation of raw data points and a

Capistrano is a Ruby-based release manager and remote server orchestrator. It uses SSH to push code updates and execute a standardized sequence of deployment tasks across a fleet of remote machines. The tool distinguishes itself through role-based server targeting and parallel connection pooling, allowing users to assign functional labels to servers and execute commands across multiple machines simultaneously. It manages multiple environments by applying a single deployment definition across different stages through parameter-based mapping. The system provides a framework for remote task exe

Apache JMeter is a Java-based performance testing tool and multi-protocol traffic simulator used to analyze the stability and scalability of servers and networks. It functions as a distributed load testing framework that coordinates remote worker nodes from a single controller to generate high volumes of concurrent traffic. The project is distinguished by its ability to simulate traffic across diverse backend systems, including HTTP, JDBC, LDAP, JMS, FTP, and TCP. It provides a headless command-line interface for automated execution and a reporting system that transforms raw sample logs into

Claude Code Templates is a comprehensive framework for orchestrating specialized AI agents and automating development workflows within local environments. It provides a structured system for defining, configuring, and deploying AI personas that handle specific technical tasks, ranging from backend architecture and frontend implementation to security auditing and infrastructure management. The project distinguishes itself through a configuration-driven approach that allows teams to standardize development environments and share reusable agent definitions across projects. It includes a robust C

Multipass is a virtual machine lifecycle controller and manager designed to create and orchestrate lightweight Ubuntu instances on a local workstation. It functions as a cross-platform hypervisor wrapper that provides a local cloud development environment for simulating cloud deployments. The system utilizes a hypervisor-abstraction layer and driver-based backend resolution to manage virtual machines across different host operating systems using native virtualization backends. It enables the simulation of cloud instance behavior through the injection of cloud-init metadata and initialization

Chaos Monkey is a chaos engineering tool designed to verify the resilience of distributed systems by intentionally terminating production instances. It functions as a fault injection service that identifies weaknesses in cloud-based architectures by simulating real-world hardware and software outages. The platform operates through a centralized orchestration engine that executes periodic disruption cycles based on predefined configuration rules. It employs a rule-based selection process that evaluates instance metadata against safety constraints to ensure that only eligible targets are disrup

WireMock is a suite of tools for service virtualization, providing mock servers for HTTP APIs and WebSocket communication. It serves as an HTTP API mock server and request verifier, allowing for the simulation of responses and the interception of network requests to test client applications without a live backend. The project differentiates itself through a service virtualization model that records real network traffic and replays it as stubs to mimic external service behavior. It includes a network fault injector to simulate response delays and connectivity issues, and a stateful scenario ma

SimianArmy is a chaos engineering framework and resilience testing tool designed to induce random infrastructure failures in cloud environments. It functions as a cloud instance termination tool that simulates unplanned outages to verify that distributed architectures maintain high availability and fault tolerance. The system identifies and terminates cloud server instances to ensure applications can tolerate unexpected hardware failures without interrupting service. This process allows for the verification of automated failover mechanisms and the identification of weaknesses in system reliab

Podinfo is a Go-based microservice template designed for Kubernetes, providing a standard pattern for building and testing containerised applications. It exposes REST endpoints for health checks, version information, and configuration, and supports environment-driven configuration for containerised deployment. The project distinguishes itself with built-in capabilities for resilience testing, including fault injection middleware that can inject random errors, latency spikes, or status code mutations. It also offers JWT token-based authentication for stateless request validation, Prometheus me

Clumsy is a Windows network fault injection tool that intercepts system-wide network traffic at the kernel level using the WinDivert driver, without requiring proxy configuration or application code changes. It captures and manipulates packets for all running applications, including localhost connections, enabling controlled testing of application behavior under degraded network conditions. The tool provides comprehensive network impairment capabilities including latency simulation, bandwidth throttling, packet loss, corruption, duplication, and reordering. Users can apply these impairments s

fast-check is a property-based testing framework and random data generator designed to verify software invariants by producing a wide range of randomized input data. It functions as a test data fuzzer that executes predicates against high volumes of random inputs to uncover edge cases and critical bugs. The project is distinguished by its ability to perform input-shrinking searches, which reduce complex failing inputs to their simplest form to isolate the exact cause of failure. It provides deterministic seed replay to exactly reproduce specific test failures and includes a concurrency testin

Toxiproxy is a framework designed for chaos engineering and network resilience testing. It functions as a programmable TCP proxy that intercepts and routes data streams between clients and servers, allowing developers to simulate unstable network conditions such as latency, bandwidth throttling, and connection failures. The tool provides a control plane that enables the dynamic manipulation of network conditions on active connections in real time. By integrating into automated test suites, it allows for the programmatic injection of faults to validate how distributed systems and microservices

Augmented Traffic Control is a network condition simulator and Linux traffic control interface. It emulates latency, packet loss, and bandwidth limits to test how applications perform under various network qualities. The project provides a remote network shaping manager that allows users to apply and store network shaping profiles in a database for consistent simulation. This is accessible via a web-based management dashboard and a remote interface, removing the need for a local client installation. The system covers kernel-level traffic shaping to constrain outgoing traffic and includes dat

sofa-jraft is a Java implementation of the Raft consensus algorithm. It serves as a distributed consensus engine and linearizable state machine designed to ensure high availability and data consistency across a cluster of nodes. The project provides a replicated key-value store and a coordination engine for managing distributed state. It distinguishes itself through support for multi-group consensus sharding to distribute traffic and a service provider interface that allows for custom log storage and entry encoding implementations. The system covers a wide range of distributed capabilities,

MailHog is an email testing tool that functions as a local SMTP server to capture outgoing messages during the development process. By intercepting SMTP traffic, it allows developers to verify email content, headers, and attachments without transmitting messages to actual external recipients. Captured data is stored in an in-memory buffer, ensuring that sensitive information remains accessible for inspection through a dedicated web-based dashboard. The platform distinguishes itself by incorporating network simulation capabilities, which allow for the injection of artificial delays or connecti

This project provides a framework for managing multi-agent systems, designed to automate complex software development, infrastructure, and business workflows. It functions as a multi-agent workflow orchestrator that routes tasks to domain-specific workers while maintaining state persistence and infrastructure automation. By leveraging large language models, the system decomposes high-level objectives into actionable plans, ensuring that complex operations are executed with consistency and reliability. The framework distinguishes itself through its hierarchical agent registry and policy-driven

glog is a C++ logging framework designed for recording application events and system diagnostics. It provides a stream-based interface for capturing debugging information and managing system event persistence. The library includes a stack trace logger that captures execution call stacks and resolves memory addresses into readable function names. It also features a dedicated error handling module to manage system shutdown and reporting during fatal failures. Log lifecycle management is handled through automatic rotation and deletion of old files to prevent disk space exhaustion. The framework

This project is a collection of educational resources and technical guides focused on Go performance optimization. It provides instruction on improving execution speed and reducing memory usage through code and architectural refinements. The guides cover advanced strategies for low-level programming, including the use of assembly for SIMD instructions and unsafe pointers for direct memory manipulation. It also details concurrency optimization techniques such as lock sharding and cache-line padding to reduce contention and improve hardware utilization. The material encompasses broad capabilit

Sentinel is a microservice flow control framework designed for managing traffic limits, distributed circuit breaking, and adaptive overload protection. It serves as a traffic shaping component that defines resource boundaries to regulate request flow and ensure reliability across distributed systems. The project provides a real-time monitoring dashboard for tracking resource metrics and performance bottlenecks across service clusters. It includes a visual interface for the real-time management of flow control and circuit breaking rules, allowing parameters to be updated without restarting the

Jest is a JavaScript testing framework designed for writing and running automated test suites to verify the correctness of JavaScript and TypeScript code. It functions as a comprehensive toolset that integrates a test runner, a mocking and spying library, a snapshot testing tool, and a code coverage tool. The framework distinguishes itself through snapshot testing, which records the serialized state of data structures to detect regressions in future executions. It also includes a mocking and spying library for simulating external dependencies and tracking function calls to isolate code during

k6 is a performance testing framework used to measure the scalability and stability of network services and APIs. It functions as a JavaScript load testing tool that uses a Go engine to simulate concurrent user traffic. The tool enables the enforcement of service level objectives by comparing response time percentiles against quantitative performance thresholds. It also operates as a performance regression tool for continuous integration pipelines and a browser performance testing tool that executes scripts within a bundled headless browser instance. Its capabilities cover workload scenario

Linkerd is a Kubernetes service mesh that manages network traffic between microservices. It functions as a transparent networking proxy, layer 7 traffic manager, and mutual TLS security layer, providing observability and reliability for service-to-service communication without requiring changes to application code. The project distinguishes itself through a sidecar-proxy architecture that intercepts TCP and application-level traffic to provide automatic mutual TLS encryption and identity verification. It enables cross-cluster service networking to link multiple clusters and implements cloud-n

Molecule is an infrastructure test orchestrator and testing framework designed for Ansible roles and collections. It functions as an ephemeral environment manager that spins up and tears down temporary test hosts to validate infrastructure code in isolation. The project distinguishes itself through a specialized idempotency validator that executes automation sequences multiple times to ensure no unintended changes occur after the initial desired state is reached. It utilizes a driver-based provisioning model to support the creation of test targets across containers, virtual machines, and clou

Gatling is a load testing framework and traffic generation engine used to measure response times and error rates under heavy load. It functions as an as-code testing library, allowing users to define high-volume traffic simulations and performance tests through programming languages rather than graphical interfaces. The system enables multi-language load simulation and the ability to model concurrent user traffic to identify infrastructure bottlenecks and stability limits. It supports a test-as-code workflow, where version-controlled scripts are integrated into build pipelines as performance