GitOps and Kubernetes – Secure Handling of Secrets

1. sealed-secrets

   1 72 8,200 8.9 Go

   A Kubernetes controller and tool for one-way encrypted Secrets

   

   An option that easily works with GitOps is the Operator Sealed Secrets from Bitnami. Secrets encrypted with it can only be decrypted by operators running inside the cluster, not even by the original author. For encryption, there is a CLI (and a third-party web UI) that requires a connection to the cluster. The disadvantage of this is that the key material is stored in the cluster, the secrets are bound to the cluster and one has to take care of backups and operation.

2. InfluxDB

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3. sealed-secrets-web

   2 1 128 8.5 Go

   A web interface for Sealed Secrets by Bitnami.

   

   An option that easily works with GitOps is the Operator Sealed Secrets from Bitnami. Secrets encrypted with it can only be decrypted by operators running inside the cluster, not even by the original author. For encryption, there is a CLI (and a third-party web UI) that requires a connection to the cluster. The disadvantage of this is that the key material is stored in the cluster, the secrets are bound to the cluster and one has to take care of backups and operation.

4. external-secrets

   3 23 4,983 9.8 Go

   External Secrets Operator reads information from a third-party service like AWS Secrets Manager and automatically injects the values as Kubernetes Secrets.

   

   External Secrets is an operator that integrates external KMS such as Hashicorp Vault or those of the major cloud providers. It reads secrets from the external APIs and injects them into Kubernetes secrets. The operator is a new implementation after the merge of similar projects from GoDaddy and ContainerSolutions.

5. vault-k8s

   4 5 808 8.5 Go

   First-class support for Vault and Kubernetes.

   

   Hashicorp Vault k8s is an operator that modifies pods via a mutating webhook to connect between vault and pod via sidecars (additional containers) to provide secrets. This has the major advantage that no secret objects are created in Kubernetes here. The disadvantage is that this way only works with Vault.

6. argocd-vault-plugin

   5 9 881 6.0 Go

   An Argo CD plugin to retrieve secrets from Secret Management tools and inject them into Kubernetes secrets

   

   ArgoCD supports SOPS with the vault Plugin.

7. helm-secrets

   6 15 1,727 7.7 Shell

   A helm plugin that help manage secrets with Git workflow and store them anywhere

   

   There is also the helm secrets plugin, which can also be used in ArgoCD with manual configuration.

8. sops-secrets-operator

   7 4 354 5.8 Go

   Kubernetes SOPS secrets operator

   

   There is also a third-party sops-secrets operator available.

9. SaaSHub

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