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helm-charts-hardened/charts/spire/README.md.gotmpl
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Kevin Fox a1ba235c99 Update docs
Signed-off-by: Kevin Fox <[email protected]>
2023-05-23 09:44:06 -07:00

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[![Development Phase](https://github.com/spiffe/spiffe/blob/main/.img/maturity/dev.svg)](https://github.com/spiffe/spiffe/blob/main/MATURITY.md#development)
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## Version support
> **Note**: This Chart is still in development and still subject to change the API (`values.yaml`).
> Until we reach a `1.0.0` version of the chart we can't guarantee backwards compatibility although
> we do aim for as much stability as possible.
| Dependency | Supported Versions |
|:-----------|:-------------------|
| SPIRE | `1.5.3+`, `1.6.3+` |
| Helm | `3.x` |
| Kubernetes | `1.22+` |
> **Note**: For Kubernetes, we will officially support the last 3 versions as described in [k8s versioning](https://kubernetes.io/releases/version-skew-policy/#supported-versions). Any version before the last 3 we will try to support as long it doesn't bring security issues or any big maintenance burden. *The first version we tested this chart with is `1.22`.*
## Prerequisites
Please note this chart requires `Projected Service Account Tokens` which has to be enabled on your k8s api server.
To enable Projected Service Account Tokens on Docker for Mac/Windows run the following
command to SSH into the Docker Desktop K8s VM.
```bash
docker run -it --privileged --pid=host debian nsenter -t 1 -m -u -n -i sh
```
Then add the following to `/etc/kubernetes/manifests/kube-apiserver.yaml`
```yaml
spec:
containers:
- command:
- kube-apiserver
- --api-audiences=api,spire-server
- --service-account-issuer=api,spire-agent
- --service-account-key-file=/run/config/pki/sa.pub
- --service-account-signing-key-file=/run/config/pki/sa.key
```
## Usage
To utilize Spire in your own workloads you should add the following to your workload:
```diff
apiVersion: v1
kind: Pod
metadata:
name: my-app
spec:
containers:
- name: my-app
image: "my-app:latest"
imagePullPolicy: Always
+ volumeMounts:
+ - name: spiffe-workload-api
+ mountPath: /spiffe-workload-api
+ readOnly: true
resources:
requests:
cpu: 200m
memory: 32Mi
limits:
cpu: 500m
memory: 64Mi
+ volumes:
+ - name: spiffe-workload-api
+ csi:
+ driver: "csi.spiffe.io"
+ readOnly: true
```
Now you can interact with the Spire agent socket from your own application. The socket is mounted on `/spiffe-workload-api/spire-agent.sock`.
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