Open-Source DevOps · kubetail-org

kubetail

Kubetail is a real-time logging dashboard for Kubernetes that lets you view container logs from multiple pods in a single merged timeline, accessible via browser or terminal. It works out of the box using your cluster's native Kubernetes API, so logs stay private and on-premise by default.

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Source: GitHub — github.com/kubetail-org/kubetail

1.7k

GitHub stars

123

Forks

Primary language

Apache-2.0

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	kubetail-org/kubetail
Owner	kubetail-org
Primary language	Go
License	Apache-2.0 — OSI-approved
Stars	1.7k
Forks	123
Open issues	26
Latest release	cli/v0.18.0 (2026-06-16)
Last updated	2026-07-06
Source	https://github.com/kubetail-org/kubetail

What kubetail is

Go-based CLI tool that streams live container logs from Kubernetes workloads (Deployments, DaemonSets, StatefulSets, etc.) by directly querying the Kubernetes API. Supports filtering by workload, time range, node properties, and grep patterns; offers optional cluster-installed components for advanced features like log search and lifecycle event tracking.

Quickstart

Get the kubetail source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/kubetail-org/kubetail.git2cd kubetail3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

Multi-container workload debugging

View merged, chronological logs from all containers in a Deployment or DaemonSet in real-time, making it easier to trace distributed requests across ephemeral containers without external log aggregation.

Local development and on-cluster operations

Run as a desktop CLI or web dashboard to monitor development/staging clusters without needing to configure external logging infrastructure; logs remain within cluster boundaries.

Quick triage and incident response

Rapidly access container logs from terminal or browser UI with contextual filters (node properties, time windows, workload type) to isolate and investigate failures without log forwarding latency.

Implementation considerations

Kubetail CLI requires kubeconfig or in-cluster service account with read permissions on pods and pod logs; verify RBAC rules before deployment.
Desktop dashboard and cluster-mode installations have different resource footprints; cluster mode may require persistent storage and network policies for agent-API communication.
Container lifecycle tracking (to handle pod restarts) requires polling the Kubernetes API; monitor rate limits and etcd load in large clusters.
No log filtering at source (kubelet); all filtering happens client-side, so high-volume clusters may experience latency or bandwidth constraints.
Optional Kubetail API components (cluster-api, cluster-agent) add complexity; evaluate whether basic Kubernetes API–only mode meets your needs before installing cluster extensions.

When to avoid it — and what to weigh

Requires log persistence or historical analysis — Kubetail is real-time only; it does not persist logs for archival, long-term retention, or retrospective analysis. For compliance or forensic needs, you need external log storage.
Need centralized multi-cluster logging at scale — Kubetail queries each cluster independently via its API; it lacks native federation, cross-cluster correlation, or metrics/traces integration. Large multi-tenant environments may prefer ELK, Loki, or Datadog.
Enterprise audit and compliance workflows — No built-in access controls, audit logging, or RBAC enforcement. Users with cluster API access can see all workload logs; not suitable for strict data isolation or regulated industries without additional platform controls.
Advanced parsing, anomaly detection, or alerting — Roadmap indicates message parsing and metrics are future steps (not yet shipped). Today it is a log viewer, not an analytics or alerting engine.

License & commercial use

Apache License 2.0 (Apache-2.0): permissive open-source license permitting commercial use, modification, and distribution with patent protection. Requires retention of copyright and license notices; derivative works must also be licensed under Apache 2.0.

Apache 2.0 is a permissive OSI-approved license that explicitly permits commercial use. No external approval or commercial license needed to use Kubetail in production. However, verify your organization's open-source policy for any required attribution or compliance reviews.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Strong
License clarity	Clear
Deployment complexity	Moderate
DEV.co fit	Strong
Assessment confidence	High

Security considerations

Kubetail queries the Kubernetes API using your kubeconfig/service account credentials; any user with read access to pods and logs can use Kubetail to view those logs. No encryption at rest for optional cluster components documented in provided data. No audit logging. Cluster-mode installation requires cluster-admin; review RBAC and network policies. Private by default (logs do not leave cluster), but logs are readable by anyone with API access.

Alternatives to consider

kubectl logs / kubectl tail (native)

Built-in Kubernetes tooling; no installation needed. Lacks UI, filtering, multi-container merging, and real-time lifecycle tracking. Suitable only for simple one-pod-at-a-time debugging.

Loki + Grafana

Full observability stack with log aggregation, persistence, querying, and dashboards. Requires external infrastructure, log forwarding, and operational overhead but scales to enterprise. Better for compliance and long-term retention.

Datadog / Splunk / New Relic

SaaS log management with analytics, alerts, and multi-cluster federation. Logs leave cluster; monthly costs; significant compliance considerations. Best for large orgs with existing APM investments.

Software development agency

Build on kubetail with DEV.co software developers

Start with the desktop CLI (1-line install via Homebrew), then decide whether cluster-mode features (advanced search, system logs) justify the extra operational overhead. Test against your RBAC and multi-cluster architecture first.

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kubetail FAQ

Does Kubetail store logs outside my cluster?

No. Kubetail queries the Kubernetes API directly and streams logs to your terminal or local browser. Logs do not leave your cluster by default. Optional cluster components also run in-cluster.

Can I view logs from multiple Kubernetes clusters?

Desktop mode can switch between clusters via kubeconfig. Cluster/server mode queries one cluster at a time. No native multi-cluster aggregation.

What permissions does Kubetail need?

Read access to pods and pod logs in the Kubernetes API (standard RBAC rules). Cluster-mode installation requires cluster-admin for API and Agent deployment.

Is there a cost?

Kubetail is open-source (Apache 2.0) and free. No SaaS fees. Cluster mode introduces operational costs (compute, storage for optional components).

Software developers & web developers for hire

From first prototype to production, DEV.co delivers software development services around tools like kubetail. Our software development agency staffs experienced software developers and web developers for custom software development, web development, integrations, and ongoing support across open-source devops and beyond.

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