78 lines
2.6 KiB
Markdown
78 lines
2.6 KiB
Markdown
|
# GCP Persistent Disk CSI Driver
|
||
|
|
|
||
|
|
The GCP Persistent Disk CSI driver allows you to provision volumes for pods with a Kubernetes deployment over Google Cloud Platform. The CSI driver replaces to volume provioning done by the in-tree azure cloud provider which is deprecated.
|
||
|
|
|
||
|
|
To deploy GCP Persistent Disk CSI driver, uncomment the `gcp_pd_csi_enabled` option in `group_vars/all/gcp.yml` and set it to `true`.
|
||
|
|
|
||
|
|
## GCP Persistent Disk Storage Class
|
||
|
|
|
||
|
If you want to deploy the GCP Persistent Disk storage class to provision volumes dynamically, you should set `persistent_volumes_enabled` in `group_vars/k8s_cluster/k8s_cluster.yml` to `true`.
|
||
|
|
|
||
|
|
## GCP credentials
|
||
|
|
|
||
|
|
In order for the CSI driver to provision disks, you need to create for it a service account on GCP with the appropriate permissions.
|
||
|
|
|
||
|
|
Follow these steps to configure it:
|
||
|
|
|
||
|
|
```ShellSession
|
||
|
|
# This will open a web page for you to authenticate
|
||
|
|
gcloud auth login
|
||
|
|
export PROJECT=nameofmyproject
|
||
|
|
gcloud config set project $PROJECT
|
||
|
|
|
||
|
|
git clone https://github.com/kubernetes-sigs/gcp-compute-persistent-disk-csi-driver $GOPATH/src/sigs.k8s.io/gcp-compute-persistent-disk-csi-driver
|
||
|
|
|
||
|
|
export GCE_PD_SA_NAME=my-gce-pd-csi-sa
|
||
|
|
export GCE_PD_SA_DIR=/my/safe/credentials/directory
|
||
|
|
|
||
|
|
./deploy/setup-project.sh
|
||
|
|
```
|
||
|
|
|
||
|
|
The above will create a file named `cloud-sa.json` in the specified `GCE_PD_SA_DIR`. This file contains the service account with the appropriate credentials for the CSI driver to perform actions on GCP to request disks for pods.
|
||
|
|
|
||
|
|
You need to provide this file's path through the variable `gcp_pd_csi_sa_cred_file` in `inventory/mycluster/group_vars/all/gcp.yml`
|
||
|
|
|
||
|
|
You can now deploy Kubernetes with Kubespray over GCP.
|
||
|
|
|
||
|
|
## GCP PD CSI Driver test
|
||
|
|
|
||
|
|
To test the dynamic provisioning using GCP PD CSI driver, make sure to have the storage class deployed (through persistent volumes), and apply the following manifest:
|
||
|
|
|
||
|
|
```yml
|
||
|
|
---
|
||
|
|
kind: PersistentVolumeClaim
|
||
|
|
apiVersion: v1
|
||
|
|
metadata:
|
||
|
|
name: podpvc
|
||
|
|
spec:
|
||
|
|
accessModes:
|
||
|
|
- ReadWriteOnce
|
||
|
|
storageClassName: csi-gce-pd
|
||
|
|
resources:
|
||
|
|
requests:
|
||
|
|
storage: 1Gi
|
||
|
|
|
||
|
|
---
|
||
|
|
apiVersion: v1
|
||
|
|
kind: Pod
|
||
|
|
metadata:
|
||
|
|
name: web-server
|
||
|
|
spec:
|
||
|
|
containers:
|
||
|
|
- name: web-server
|
||
|
|
image: nginx
|
||
|
|
volumeMounts:
|
||
|
|
- mountPath: /var/lib/www/html
|
||
|
|
name: mypvc
|
||
|
|
volumes:
|
||
|
|
- name: mypvc
|
||
|
|
persistentVolumeClaim:
|
||
|
|
claimName: podpvc
|
||
|
|
readOnly: false
|
||
|
|
```
|
||
|
|
|
||
|
|
## GCP PD documentation
|
||
|
|
|
||
|
|
You can find the official GCP Persistent Disk CSI driver installation documentation here: [GCP PD CSI Driver](https://github.com/kubernetes-sigs/gcp-compute-persistent-disk-csi-driver/blob/master/docs/kubernetes/user-guides/driver-install.md
|
||
|
|
)
|