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Getting Started with ɳSentry

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Getting Started with ɳSentry

Section titled “Getting Started with ɳSentry”

ɳSentry is a comprehensive observability and incident management bundle for nSelf deployments. Monitor uptime, track errors, manage incidents, and maintain SLOs — all self-hosted.

Installation

Section titled “Installation”

Prerequisites

Section titled “Prerequisites”
  • nSelf CLI v1.1.1 or later
  • Valid ɳSentry bundle license (included in ɳSelf+ or standalone $0.99/mo)
  • Postgres 14+ (included in nSelf stack)

Install the Bundle

Section titled “Install the Bundle”
Terminal window
nself license set nself_pro_xxxxx  # Your ɳSentry license key
nself plugin install --bundle nsentry

This installs all 13 ɳSentry plugins:

Baseline (7):

  • nself-uptime-monitor
  • nself-status-page
  • nself-incident-mgmt
  • nself-alert-router
  • nself-slo-tracker
  • nself-synthetic-monitor
  • nself-rum

Expansion (6):

  • nself-errors
  • nself-cron-monitor
  • nself-oncall
  • nself-crash
  • nself-anomaly
  • nself-audit (free tier)

Configure

Section titled “Configure”

After install, environment variables auto-populate in .env.prod:

Terminal window
# Alert channels
NSENTRY_SLACK_WEBHOOK=https://hooks.slack.com/services/...
NSENTRY_EMAIL_FROM=alerts@yourdomain.com


# SLO targets
NSENTRY_SLO_API_TARGET=99.95
NSENTRY_SLO_WEB_TARGET=99.9


# Retention
NSENTRY_ERROR_RETENTION_DAYS=90
NSENTRY_LOG_RETENTION_DAYS=30

Deploy

Section titled “Deploy”
Terminal window
nself build
nself start --environment prod

ɳSentry runs on ports 3831–3843 (auto-proxied via Nginx).

First Steps

Section titled “First Steps”
  1. Access dashboards at sentry.yourdomain.com/dashboards
  2. Configure alert channels (Slack, email, PagerDuty)
  3. Set SLO targets for your critical services
  4. Add synthetic monitors for external endpoints
  5. Enable error tracking in your app SDKs

See Architecture for detailed component overview.