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Update the Mozilla SOPS decryption with HashiCorp Vault section #713

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Feb 1, 2022
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Update the Mozilla SOPS decryption with HashiCorp Vault section #713

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53 changes: 2 additions & 51 deletions content/en/docs/guides/mozilla-sops.md
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Expand Up @@ -191,58 +191,9 @@ Encrypting with age follows the same workflow than PGP. See the [Kustomization-c

## Encrypting secrets using HashiCorp Vault

Sops needs a valid Vault token in an environment variable named `VAULT_TOKEN` to decrypt the secrets.
[HashiCorp Vault](https://www.vaultproject.io/docs/what-is-vault) is an identity-based secrets and encryption management system.

Create a Kubernetes secret named `sops-vault-token` in the `flux-system` namespace:

```sh
kubectl create secret generic sops-vault-token \
--namespace=flux-system \
--from-literal=token=$VAULT_TOKEN
```

[Customize your Flux Manifests](../installation/_index.md#customize-flux-manifests) so that kustomize-controller has the proper credentials.
Patch the kustomize-controller Pod template so that the `VAULT_TOKEN` environment variable is set:

`clusters/cluster0/flux-system/kustomization.yaml`
```yaml
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- gotk-components.yaml
- gotk-sync.yaml
patches:
- path: sops-kustomize-patch.yaml
target:
kind: Deployment
```

`clusters/cluster0/flux-system/sops-kustomize-patch.yaml`
```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: kustomize-controller
namespace: flux-system
spec:
template:
spec:
containers:
- name: manager
env:
- name: VAULT_TOKEN
valueFrom:
secretKeyRef:
name: sops-vault-token
key: token
```

At this point, kustomize-controller is now authorized to decrypt values in
SOPS encrypted files from your Sources via the related Vault instance.

See Mozilla's guide to
[Encrypting using Hashicorp Vault](https://github.com/mozilla/sops#encrypting-using-hashicorp-vault)
to get started committing encrypted files to your Git Repository or other Sources.
Encrypting with HashiCorp Vault follows the same workflow as PGP & Age. See the [kustomization-controller API doc](/docs/components/kustomize/kustomization/#hashicorp-vault) for more details.

## Encrypting secrets using various cloud providers

Expand Down