A Rust Kubernetes operator that reconciles BitwardenSecrets into Secrets.
In other words, you can reference Bitwarden passwords from Kubernetes natively through Secrets.
This is currently designed for a single customer/homelabber per cluster model, not a multi-tenant model, as there's no restriction on BitwardenSecret per namespace. It's made to be a step up for people who manage their secrets in Bitwarden and want to reference them in their personal Kubernetes cluster using GitOps.
By default, the operator will only reconcile secrets found in the kubernetes directory of your Bitwarden store. Limiting it to a folder reduces the likelyhood a Secret will be made with unintentional credentials. Unfortunately, Bitwarden falls short in API accounts, and all accounts have full access to all features. Ideally this operator would be limited to reading secrets in the kubernetes directory. Maybe this is possible with organizations? I'm not sure.
To get started, audit and run login.sh, providing your Bitwarden API key as described here, and providing your password as required by unlock.
The script will create a Secret called bitwarden-credentials. The values within this secret will be referenced by bitwarden-secrets-operator to maintain a session with Bitwarden and require no human interaction.
To protect your vault from a potential hacker's malicious build of bitwarden-secrets-operator, apply a NetworkPolicy so bitwarden-secrets-operator can only talk to the necessary Bitwarden API endpoints with something like an Istio EgressRule if you're using Istio and the Kubernetes API. Also make sure other applications do not have a ClusterRoleBinding to view secrets and make sure your Kubernetes API is secured.
See examples/object.yaml for examples.
If you make a login secret in Bitwarden, this translates to a Secret with username and password keys.
If you make a secure note secret in Bitwarden, this translates to a Secret with a notes key, as it is described in their CLI output.
There are optional keys for key and type, which correlate to the fields on the Secret.
This is a hobby project. I cannot guarantee the safety of your passwords with this solution. Use at your own risk.
I'm using it in my homelab cluster to manage my secrets. It's currently satisfying my simple use cases.
I know Rust enough to write code that compiles, but not much more than that. The code style will be rough.