dockerhub-slack-webhook

Docker Hub webhook for slack notification after build

Usage

1. Create Incoming WebHook URL

https://slack.com/apps/A0F7XDUAZ-incoming-webhooks

2. Deploy Docker image to your environment

This application is provided as a Docker image, so you can run it wherever you like.

Images

• GitHub Container Registry (Recommended)
  • ghcr.io/sue445/dockerhub-slack-webhook:latest: Use latest version
  • ghcr.io/sue445/dockerhub-slack-webhook:X.Y.Z: Use specified version
• Google Artifact Registry: If you want to run this app on Cloud Run, use this image
  • us-docker.pkg.dev/dockerhub-slack-webhook/dockerhub-slack-webhook/app:latest: Use latest version
  • us-docker.pkg.dev/dockerhub-slack-webhook/dockerhub-slack-webhook/app:X.Y.Z: Use specified version
  • us-docker.pkg.dev/dockerhub-slack-webhook/dockerhub-slack-webhook/app:edge: The contents of the main branch are pushed to this tag

Available environment variables

• SLACK_WEBHOOK_URL (Required) : Incoming Webhook URL
• PUMA_THREADS_MIN : Puma minimum threads count. default is 0
• PUMA_THREADS_MAX : Puma minimum threads count. default is 5
• PUMA_WORKERS : Puma workers count. default is 1
• PUMA_PORT : Puma port. default is 8080
• DEBUG_LOGGING : If true is set, debug logs are output
• SENTRY_DSN : Sentry DSN. This variable is optional. If you want to use Sentry, please set DSN

3. Register webhook to Docker Hub

Register webhook url

e.g.

• https://example.com/webhook
  • Without channel query, notify to SLACK_CHANNEL
• https://example.com/webhook?channel=other_channel
  • With channel query, notify to specific channel. (# is needless)

4. Push image to Docker Hub

Development

Run at local

docker compose up --build

See http://localhost:8080

Heroku

This application was offered as a Heroku application, but since Heroku is ending its free plan, I have made it possible to run it outside of Heroku.

So this app can run outside of Heroku.

If you want to run this app on Heroku, browse heroku branch and click "Deploy to Heroku" button.