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1.5.0
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@@ -3,6 +3,7 @@ name: cron-checker
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on:
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on:
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push:
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push:
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branches: [main]
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branches: [main]
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tags: ['*']
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pull_request:
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pull_request:
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branches: [main]
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branches: [main]
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@@ -0,0 +1,9 @@
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name: Release
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on:
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push:
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branches: [main]
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jobs:
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release:
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uses: unboundsoftware/shared-workflows/.gitea/workflows/Release.yml@main
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@@ -2,6 +2,29 @@
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All notable changes to this project will be documented in this file.
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All notable changes to this project will be documented in this file.
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## [1.5.0] - 2026-01-10
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### 🚀 Features
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- Run CI workflow on tags
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## [1.4.0] - 2026-01-09
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### 🚀 Features
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- Migrate from GitLab CI to Gitea Actions
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- Add release workflow using shared workflow
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### 📚 Documentation
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- Add CLAUDE.md for Claude Code guidance
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### ⚙️ Miscellaneous Tasks
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- *(deps)* Update golang:1.25.5 docker digest to ad03ba9
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- *(deps)* Update actions/checkout action to v6
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- *(deps)* Update actions/setup-go action to v6
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## [1.3.18] - 2025-12-18
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## [1.3.18] - 2025-12-18
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### 🐛 Bug Fixes
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### 🐛 Bug Fixes
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@@ -0,0 +1,61 @@
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# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project Overview
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A Kubernetes monitoring tool that checks for CronJobs not running according to schedule and sends Slack notifications. It runs as a container inside a K8s cluster, polling all CronJobs every 60 seconds.
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## Common Commands
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```bash
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# Run tests
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go test ./...
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# Run tests with race detection and coverage
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go test -race -coverprofile=coverage.txt ./...
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# Build the binary
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CGO_ENABLED=0 go build -o release/cron-checker -ldflags '-w -s'
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# Check for vulnerabilities
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govulncheck ./...
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# Format and vet
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go fmt ./...
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go vet ./...
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# Check for unused modules
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go mod tidy
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```
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## Architecture
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This is a single-file Go application (`main.go`) with comprehensive tests (`main_test.go`).
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**Core Components:**
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- `doCheck()` - Main loop that polls K8s CronJobs, parses cron schedules, and sends Slack alerts for overdue jobs
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- `Client` / `ClientProvider` interfaces - Abstractions over K8s client for testability
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- `ConfigProvider` / `InClusterProvider` - Handles K8s in-cluster authentication
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**Key Dependencies:**
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- `k8s.io/client-go` - Kubernetes API client
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- `github.com/robfig/cron` - Cron schedule parsing
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- `github.com/multiplay/go-slack` - Slack webhook integration
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- `github.com/alecthomas/kingpin/v2` - CLI flag parsing
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**Configuration:**
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- `SLACK_URL` env var or `--slack-url` flag (required) - Slack webhook URL for notifications
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## Building Docker Image
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The Dockerfile performs a multi-stage build that runs fmt, vet, and tests before building:
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```bash
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docker build -t cron-checker .
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```
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To extract coverage report:
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```bash
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docker build --target export -o . .
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```
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