1. Answers
  2. Storing Git repositories in persistent volumes

How do I store Git repositories in persistent volumes?

In this guide, we will create a Kubernetes Persistent Volume (PV) and a Persistent Volume Claim (PVC) using Pulumi. This will allow us to store Git repositories in persistent storage that survives pod restarts and rescheduling.

Steps:

  1. Define a Persistent Volume (PV) to provide storage.
  2. Define a Persistent Volume Claim (PVC) to request storage.
  3. Deploy a pod that uses the PVC to store Git repositories.
import * as pulumi from "@pulumi/pulumi";
import * as k8s from "@pulumi/kubernetes";

// Create a Persistent Volume (PV)
const pv = new k8s.core.v1.PersistentVolume("git-repo-pv", {
    metadata: {
        name: "git-repo-pv",
    },
    spec: {
        capacity: {
            storage: "10Gi",
        },
        accessModes: ["ReadWriteOnce"],
        persistentVolumeReclaimPolicy: "Retain",
        hostPath: {
            path: "/mnt/data/git-repos",
        },
    },
});

// Create a Persistent Volume Claim (PVC)
const pvc = new k8s.core.v1.PersistentVolumeClaim("git-repo-pvc", {
    metadata: {
        name: "git-repo-pvc",
    },
    spec: {
        accessModes: ["ReadWriteOnce"],
        resources: {
            requests: {
                storage: "10Gi",
            },
        },
    },
});

// Deploy a pod that uses the PVC
const pod = new k8s.core.v1.Pod("git-repo-pod", {
    metadata: {
        name: "git-repo-pod",
    },
    spec: {
        containers: [
            {
                name: "git-container",
                image: "alpine/git",
                volumeMounts: [
                    {
                        mountPath: "/git",
                        name: "git-repo-storage",
                    },
                ],
            },
        ],
        volumes: [
            {
                name: "git-repo-storage",
                persistentVolumeClaim: {
                    claimName: pvc.metadata.name,
                },
            },
        ],
    },
});

Key Points:

  • Persistent Volume (PV): A storage resource in Kubernetes that provides storage to the cluster.
  • Persistent Volume Claim (PVC): A request for storage by a user that binds to a PV.
  • Pod: A Kubernetes resource that uses the PVC to store data persistently.

Summary

We created a Persistent Volume and a Persistent Volume Claim in Kubernetes using Pulumi. We then deployed a pod that uses the PVC to store Git repositories in persistent storage. This setup ensures that the data stored in the Git repositories persists across pod restarts and rescheduling.

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