How to Run

Create Alpha Cluster in GKE

• Install Kops: kubernetes/kops
• Make sure gcloud is loged in into GCS account.
  • gcloud login
• Configure default credentials:

  gcloud auth application-default login

• Create Cluster:

  export KOPS_STATE_STORE=gs://appscode-qa/
  export PROJECT=ackube
  export KOPS_FEATURE_FLAGS=AlphaAllowGCE
  
  # create cluster configuration
  kops create cluster stash.k8s.local  \
  --zones us-central1-f                \
  --state ${KOPS_STATE_STORE}          \
  --project=${PROJECT}                 \
  --node-count=2                       \
  --kubernetes-version=v1.14.6
  
  # crate cluster
  kops update cluster stash.k8s.local --yes

Now, wait for few minutes to cluster to be ready.

• SSH into master node and add --feature-gates=VolumeSnapshotDataSource=true flag:

  # run as root user
  sudo su
  
  # edit kube-apiserver and add: "--feature-gates=VolumeSnapshotDataSource=true" flag
  vi /etc/kubernetes/manifests/kube-apiserver.manifest

Install GCP CSI Driver (Alpha)

• Clone this repo: kubernetes-sigs/gcp-compute-persistent-disk-csi-driver

• Checkout to v0.5.1 release tag:

  git checkout v0.5.1

• Setup Necessary Roles:

  export PROJECT=ackube
  export GCE_PD_SA_NAME=stash-volumesnapshot-demo
  export GCE_PD_SA_DIR=/home/emruz/dev/cred/gcs/
  
  # setup project
  ./deploy/setup-project.sh
  

• Deploy CSI driver

  export GCE_PD_SA_DIR=/home/emruz/dev/cred/gcs
  export GCE_PD_DRIVER_VERSION=alpha
  ./deploy/kubernetes/deploy-driver.sh

• Verify that driver is running. You should see the flowing 3 pods are running

  $ kubectl get pod | grep csi-gce-pd
  csi-gce-pd-controller-0   4/4     Running   1          71s
  csi-gce-pd-node-s5mvj     2/2     Running   0          70s
  csi-gce-pd-node-wgsmj     2/2     Running   0          70s

Install Stash

export STASH_IMAGE_TAG=support-vs-ft-model_linux_amd64

curl -fsSL https://github.com/stashed/installer/raw/v0.9.0-rc.0/deploy/stash.sh | bash -s -- --docker-registry=appscodeci

Backup

• Create Storage Class using newly deployed CSI driver.
• Create VolumeSnapshotClass using same CSI driver.
• Create Function, Task, RBAC.
• Deploy StatefulSets. StatefulSets must use same storage class as VolumeSnapshotClass
• Create BackupConfiguration. Provide StatefulSet's name as shards params in spec.Task.params section.

Make sure image field has been updated in Function spec to point the image with latest change.