Coredog is an open-source project designed to monitor and manage core dumps in a Kubernetes cluster. It automatically detects core files generated by applications running in the cluster, uploads them to an S3-compatible object storage system, and provides pre-signed S3 download links to all developers through instant messaging software.

1. Architecture
2. Features
3. Prerequisites
4. Getting Started
5. Configuration
6. Deployment
7. Usage
8. License
9. Contributors

The above diagram represents the high-level architecture of Coredog. It showcases the key components and their interactions.

• Real-time monitoring of core files generated in the Kubernetes cluster
• Automatic upload of core files to an S3-compatible object storage system
• Pre-signed S3 download links shared with all developers via instant messaging software
• Easy configuration and deployment using Helm charts

Before deploying Coredog, ensure that you have the following prerequisites:

• A Kubernetes cluster with at least one node
• A running instance of an S3-compatible object storage system (e.g., MinIO, Amazon S3)
• An instant messaging software that supports sharing pre-signed URLs (e.g., Slack, Microsoft Teams)
• Helm installed on your local machine

To get started with Coredog, clone the repository to your local machine:

git clone https://github.com/DomineCore/coredog.git
cd coredog

Before deploying Coredog, you need to update the charts/values.yaml file with your S3-compatible object storage system and instant messaging software settings. Here's a brief overview of the available configuration options:

config:
  watcher.yaml: |-
    ScrapePaths: ["/core/dump"]
    StorageConfig:
      enabled: true
      protocol: s3
      s3AccesskeyID: "s3AccesskeyID"
      s3SecretAccessKey: "s3SecretAccessKey"
      s3Region: "ap-nanjing"
      S3Bucket: "bucket"
      S3Endpoint: "endpoint"
      StoreDir: corefiles
      PresignedURLExpireSeconds: 3600

  controller.yaml: |-
    NoticeChannel:
    - chan: slack
      webhookurl: "url" ## 
    - chan: wechat
      webhookurl: "url"

## Define your corefile source storage
corefileVolume:
  type: hostPath
  name: corefile
  hostPath:
    path: /root/core
    type: Directory
  emptyDir: {}
  persistentVolumeClaim:
    claimName: my-pvc

To deploy Coredog to your Kubernetes cluster using Helm, navigate to the charts directory and run the following command:

helm install coredog ./coredog

This will create a new Helm release named coredog and deploy the Coredog chart to your Kubernetes cluster.

Once Coredog is deployed, it will automatically monitor the Kubernetes cluster for core files and upload them to the specified S3-compatible object storage system. Pre-signed S3 download links will be shared with all developers through the specified instant messaging software.

Coredog is licensed under the MIT License.

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