Running Firecracker on Google Kubernetes Engine
I wonder would it be possible to abandon DigitalOcean Kubernetes and switch over to GKE. At least from what I’m reading, it supports out-of-the box containerd, so hopefully, I can run Kata containers and Firecracker. Let’s give it a try.
GKE is offering $300 credits for the first three months for new customers, so this experiment won’t cost me a penny.
Install Google Cloud SDK:
$ echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] https://packages.cloud.google.com/apt cloud-sdk main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list $ curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key --keyring /usr/share/keyrings/cloud.google.gpg add - $ sudo apt update $ sudo apt install google-cloud-sdk
Initialize the cloud environment:
$ gcloud init
Follow the setup wizard. You’ll have to open the URL link provided and login via your Google account.
Connect to the cluster:
$ gcloud container clusters get-credentials <cluster> --zone <zone> --project <project_id>
Confirm that it’s connected:
$ kubectl get nodes NAME STATUS ROLES AGE VERSION gke-cluster-1-default-pool-34f33e37-n7bs Ready <none> 11m v1.18.12-gke.1210 gke-cluster-1-default-pool-34f33e37-n99g Ready <none> 11m v1.18.12-gke.1210 gke-cluster-1-default-pool-34f33e37-nzgc Ready <none> 11m v1.18.12-gke.1210
Follow the steps from this post to install Kata containers.
I’m happy with GKE user interface, and it feels intuitive and powerful enough.
However, at this time, I wasn’t even able to deploy kata-containers with the following error:
MountVolume.SetUp failed for volume "kata-artifacts" : mkdir /opt/kata/: read-only file system
I’m afraid I need someone to explain to me how to configure GKE properly.