Kubernetes freeCodeCamp

• What does Kubernetes simplify for applications?

  Deployment to production
• Who will teach the Kubernetes course?

  Bogdan Stashchuk
• What is Kubernetes considered in the context of containerized applications?

  Defacto standard for deployment
• What type of software is Kubernetes?

  Open source
• How long has Bogdan Stashchuk been using Docker and Kubernetes?

  Multiple years
• What will the course start with?

  Terminology and key features of Kubernetes
• What is a Kubernetes cluster?

  A set of nodes for container orchestration
• What is a node in Kubernetes?

  A server in the Kubernetes cluster
• What will be built during the course?

  A small Kubernetes cluster locally
• What will be created and scaled in the course?

  Different deployments
• What will be pushed to Docker Hub?

  A custom Docker image
• What type of configuration files will be used in Kubernetes?

  YAML configuration files
• What does Kubernetes allow regarding different applications?

  Connect different applications over the network
• What container runtimes does Kubernetes support?

  Docker, CRI O, and container D
• What is the prerequisite for the course?

  Familiarity with Docker
• What is Kubernetes defined as?

  A container orchestration system
• What does Kubernetes automate?

  Deployment of containerized applications
• What is the smallest unit in Kubernetes?

  Pod
• What do containers inside a pod share?

  Volumes and network resources
• How many containers are most commonly found in a pod?

  Single container
• Can containers from one pod be spread across different servers?

  No, one pod per server
• What is a Kubernetes cluster made of?

  Nodes
• What is the role of the master node?

  Manages worker nodes
• What services run on each node in a Kubernetes cluster?

  Cubelet, cube proxy, and container runtime
• What does the cubelet service do?

  Communicates with the master node
• What is the function of the cube proxy?

  Responsible for network communication
• What does the scheduler service do?

  Plans and distributes load
• What does the cloud controller manager do?

  Interacts with cloud service providers
• What service stores logs in Kubernetes?

  Etcd
• What is the main service for name resolution in Kubernetes?

  DNS service
• What is the API server used for?

  Manage the Kubernetes cluster
• How do you manage a Kubernetes cluster remotely?

  Using cube CTL tool
• What type of communication occurs between nodes and the master node?

  Over HTTPS
• What is the purpose of the mini cube tool?

  Create a single node cluster locally
• What is required to run mini cube successfully?

  A virtual machine or container manager
• Which virtual machine managers are supported by mini cube?

  VirtualBox, VMware, Docker, Hyper V, Parallels
• What is the suggested virtual machine manager for Windows users?

  Hyper V
• What is one way to create a cluster using cloud services?

  Use Amazon Web Services or Google Cloud
• What is a free solution for creating a cluster locally?

  Create a class for locally on your computer
• What tool can be used to create a single node cluster?

  Mini cube