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Cloudflare R2 Setup

S3-compatible storage for PostgreSQL WAL backups (CloudNativePG).

Docs: https://developers.cloudflare.com/r2/

Prerequisites

1. Create Bucket

  1. R2 Dashboard → Create bucket
  2. Name: cnpg-backups

2. Create API Token

  1. R2 API Tokens → Create API token
  2. Configure:
    • Token name: k8s-s3-api-token
    • Permissions: Object Read & Write
    • Specify bucket(s): cnpg-backups
  3. Click Create API Token
  4. Add to Doppler: S3_ACCESS_KEY_ID and S3_SECRET_ACCESS_KEY
  5. In R2 dashboard, find Account ID in the right sidebar → save as <CF_ACCOUNT_ID>

R2 endpoint: https://<CF_ACCOUNT_ID>.r2.cloudflarestorage.com

Summary

Placeholders for values.yaml:

  • <CF_ACCOUNT_ID> — from R2 dashboard (right sidebar)

Add to Doppler shared:

  • S3_ACCESS_KEY_ID
  • S3_SECRET_ACCESS_KEY

Pricing

Resource Free Tier Paid
Storage 10 GB/month $0.015/GB
Class A ops 1M/month $4.50/M
Class B ops 10M/month $0.36/M
Egress Unlimited $0