Snapshot Operator

Snapshot operator makes snapshots for containers running in k8s, and pushes the snapshots to a docker registry for further reuse/restore. It is inspired by kubepush.

Snapshot

apiVersion: "ava.qiniu.com/v1alpha1"
kind: "Snapshot"
metadata:
  name: "example-snapshot"
spec:
  podName: "my-pod"
  containerName: "my-container"
  # full name of the image to the desired snapshot, 
  # including registry host, tag and anything needed to push/pull an image
  imageName: "my-private-registry.com/my-snapshot:v0.0.1"
  # secret used to push the snapshot-ed image, same as an imagePullSecret
  imagePushSecret:
    name: "my-docker-registry-secret"

How to use

You will need a running kubernetes cluster with access to, Minikube or Docker for Mac for example.
Create custom resource definition for snapshot:
```
$ kubectl create -f deploy/crd.yaml
```

Start snapshot operator

$ kubectl create -f deploy/operator.yaml

Create a snapshot
```
$ kubectl create -f deploy/cr.yaml
```
You can now use kubectl to check the newly created snapshot. A job in the name of example-snapshot-xxxxx could be observed after a while, it is created by the snapshot operator to perform the docker committing and docker pushing work.
```
$ kubectl get snapshot
NAME                 AGE
example-snapshot   22s

$ kubectl get job
NAME                       DESIRED   SUCCESSFUL   AGE
example-snapshot-bjpf4   1         0            37s
```

qiniu-ava/snapshot-operator

Snapshot Operator

Snapshot

How to use