Maintenant is an open-source observability platform designed to provide unified monitoring for Docker and Kubernetes environments. It addresses the challenge of fragmented monitoring by consolidating the tracking of containers, endpoints, cron jobs, SSL certificates, and system resources into a single solution. The tool is aimed at users managing containerized applications who need comprehensive visibility across their infrastructure without maintaining multiple separate tools or dashboards.
The platform offers automatic discovery of Docker and Kubernetes containers, monitoring their states, health checks, restart loops, and logs. Compose projects are grouped automatically. HTTP and TCP endpoints are actively probed for latency, status codes, and content assertions, with configuration possible via Docker labels and no need for YAML files. Cron jobs and heartbeats are tracked through unique ping URLs, capturing durations and exit codes, and sending alerts if scheduled jobs do not run. SSL/TLS certificates are detected on HTTPS endpoints, with expiration alerts and full chain validation. System resources such as CPU, RAM, network, and disk I/O are monitored per container and per host, with real-time charts and configurable threshold alerts. The tool also includes update intelligence by detecting available updates through OCI scans and comparing digests across containers.
Maintenant provides unified alerting with built-in webhook and Discord support, while the Pro version adds integrations with Slack, Teams, and Email, along with escalation, routing, and custom templates. A public status page feature displays real-time updates, and the Pro plan extends this with incident management, maintenance windows, and subscriber notifications. Security features include network security insights to detect open ports and unencrypted endpoints, and the Pro plan offers a consolidated security posture with CVE information, risk scoring, and remediation priorities. Multi-server monitoring is available in the Pro version via lightweight agents that stream data from remote hosts to a central server. A REST API and real-time SSE streams are provided for integration and automation, and a built-in MCP server allows querying infrastructure from an AI assistant.
The platform is delivered as a single container, operational in about 30 seconds, with no external dependencies. 10+, Kubernetes, Linux (amd64/arm64), macOS, and WSL2. 0 license, with feature limits on endpoints, cron jobs, certificates, and status pages. The Pro plan, available for a monthly or annual fee with a 14-day free trial, unlocks advanced features and expanded limits. Maintenant is developed by Kolapsis and is positioned as a unified monitoring tool for containerized stacks.
In the Observability & monitoring space, Maintenant takes a focused approach. Fragmented monitoring across multiple tools for containers, endpoints, and system resources. Maintenant is an open-source project aimed at devOps engineers. The project is open source (AGPL-3.0). Maintenant is available on the web and the command line, and it can be self-hosted.
Maintenant first shipped in 2025. The project is developed in the open on GitHub with 341 stars and 235 commits in the last 90 days. Across PulseGate's embedding index, Maintenant has few near neighbours, marking it as relatively distinct. Among its 9 catalogued features are container monitoring, kubernetes support, and HTTP checks.
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