Hardcoding secrets like passwords, API keys, and database credentials inside Docker images is a big security risk. If these images are shared or stored in a public registry, sensitive data can be exposed. A much better approach is to store secrets securely and inject them into applications only when needed.
In a recent project, I worked on securing secrets in a Kubernetes-based environment using HashiCorp Vault and ArgoCD Vault Plugin. This method ensures that sensitive data is never stored inside the application code or Docker images.
