Deploy secret management solution (DEV environment)

Problem

• The services we'll be running require access to configuration data, access tokens, cryptographic keys, and other confidential data.
• For obvious reasons, those should be kept securely.
• See https://cheatsheetseries.owasp.org/cheatsheets/Secrets_Management_Cheat_Sheet.html

Goal

• Deploy the secret management solution chosen in #354

ACs

• The chosen secret management solution has been deployed in the cluster (DEV environment).
• ArgoCD has been configured to integrate with the secret management solution.
• Existing secrets have been migrated to the secret management solution.
• Existing secrets have been rotated.
• New secret management solution does not affect CI/CD deployments.
• At least, three team members have access to the secret management solution.

Notes/ resources

• Use https://argocd-vault-plugin.readthedocs.io/en/stable/backends/ for integration with ArgoCD

Who needs to be involved / informed

• reviewers:
• involved: team::infra-and-ops
• informed: