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A pinch of salt – Encrypt WAL-G PostgreSQL backups

WAL-G is a widely known backup software for Postgres databases. One of it’s features is to backup to S3 storage out of the box. Also it’s capable to encrypt those backups and WAL archives with several encryption methods (e.g. libsodium). Since WAL-G is implemented within the Zalanndo Spilo image and therefore deployed by default with the Zalando Postgres Operator on Kubernetes, I had a deeper look on how to get encrypted backups implemented there, cause this is not documented well.

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