Apache Cassandra Lunch #44: Cassandra on Kubernetes – Docker/Kubernetes/Helm Part 2

In Apache Cassandra Lunch #44: Cassandra on Kubernetes – Docker/Kubernetes/Helm Part 2, we continue our discussion on Cassandra on Kubernetes and Docker, Kubernetes, and Helm. The live recording of Cassandra Lunch, which includes a more in-depth discussion and a demo, is embedded below in case you were not able to attend live. If you would like to attend Apache Cassandra Lunch live, it is hosted every Wednesday at 12 PM EST. Register here now!

In Apache Cassandra Lunch #44: Cassandra on Kubernetes – Docker/Kubernetes/Helm Part 2, we continue our discussion on Cassandra on Kubernetes and Docker, Kubernetes, and Helm. If you want a more in depth discussion, be sure to watch the live recording embedded below.

Review of Docker, Kubernetes, and Helm

• Review
  • Docker
  • Kubernetes
    • Nodes
      • Master/ControlPlane
      • Worker
    • Pod
      • Deployment/ReplicaSet
      • StatefulSet
      • Job
      • DaemonSet
    • Operators
  • Helm

Explanation of Hierarchy (of Cassandra, Docker and Kubernetes)

docker
	cassandra-image 
	cassandra-custom-image
	cassandra-custom-image2
kubernetes
	statefulset
		cassandra-image
		cassandra-custom-image

	CassandraDatacenterCenter
		cassandra-image
		cassandra-custom-image

	MyOwnCassandraDataCenter
		cassandra-custom-image2

	helm
		CassandraDatacenterCenter
		PrometheusGrafana


kubernetes
	etcd - storing the state of the objects
	kubelet - running and catching up to the state
	kubeproxy - connects shit together 

Resources Discussed:

Cassandra on Docker:

• https://github.com/AdoptOpenJDK/openjdk-docker/blob/820829025ee3eb66b5dc9e5fed0ee3171aababe9/8/jdk/ubuntu/Dockerfile.hotspot.releases.full
• https://github.com/tianon/docker-brew-ubuntu-core/blob/7145f9723125e6e4367dc0fb428ffd9f2bc00334/focal/Dockerfile

Cassandra on Kubernetes:

• https://kubernetes.io/docs/tutorials/stateful-application/cassandra/

Cass Operator

• https://github.com/datastax/cass-operator
• https://docs.datastax.com/en/cass-operator/doc/cass-operator/cassOperatorGettingStarted.html
• https://raw.githubusercontent.com/datastax/cass-operator/v1.6.0/docs/user/cass-operator-manifests-v1.16.yaml
• https://raw.githubusercontent.com/datastax/cass-operator/v1.6.0/operator/k8s-flavors/gke/storage.yaml
• https://raw.githubusercontent.com/datastax/cass-operator/v1.6.0/operator/example-cassdc-yaml/cassandra-3.11.x/example-cassdc-full.yaml
• https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml
• https://github.com/Orange-OpenSource/casskop

K8ssandra

• https://k8ssandra.io/docs/getting-started/#prerequisites
• https://k8ssandra.io/docs/
• https://github.com/k8ssandra/k8ssandra/tree/main/charts/cass-operator

If you missed last week’s Apache Cassandra Lunch #43: DSBulk with Sed & Awk, don’t forget to check it out as well! If you want to attend Cassandra Lunch live every Wednesday at 12 PM EST, then you can register here now! Additionally, the playlist with all the previously recorded Cassandra Lunches is available here.

Cassandra.Link

Cassandra.Link is a knowledge base that we created for all things Apache Cassandra. Our goal with Cassandra.Link was to not only fill the gap of Planet Cassandra, but to bring the Cassandra community together. Feel free to reach out if you wish to collaborate with us on this project in any capacity.

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