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minikube start

Learn to start the cluster with minikube start.

minikube start

minikube start creates the cluster or restarts a stopped one, and points kubectl at it. You can choose the resources and the number of nodes:

minikube start --cpus=4 --memory=8g
minikube start --nodes=3 -p cok-dugum   # a separate profile with 3 nodes
minikube stop                           # stop (data stays)
minikube delete                         # delete completely

Several independent clusters can be kept with -p (profile).

Add-ons

Minikube installs frequently used components as add-ons with a single command: ingress controller, metrics-server, dashboard, registry...

$ minikube addons list | head -5
| ADDON NAME        | PROFILE  | STATUS     |
| dashboard         | minikube | disabled   |
| ingress           | minikube | disabled   |
| metrics-server    | minikube | disabled   |
$ minikube addons enable metrics-server
$ minikube addons enable ingress

Practice A powerful local cluster

Write three commands: start Minikube with 4 CPUs and 8g memory; enable the metrics-server add-on; enable the ingress add-on.

Starter code

terminal
# buraya yaz

Sample solution

terminal
minikube start --cpus=4 --memory=8g
minikube addons enable metrics-server
minikube addons enable ingress

Expected output

🏄  Done! kubectl is now configured to use "minikube" cluster
🌟  The 'metrics-server' addon is enabled
🌟  The 'ingress' addon is enabled

Questions and answers

Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.

1 What is the difference between minikube stop and minikube delete?

  • They are the same
  • delete only removes pods
  • stop uninstalls kubectl
  • stop halts and keeps the state; delete removes the cluster completely Correct answer

Explanation: stop is enough to free up resources.

2 Enable the metrics-server add-on.

Question 
minikube addons ____ metrics-server
Answer 
minikube addons enable metrics-server

Explanation: enable/disable turns the add-on on/off.

3 Match.

Term Meaning
--cpus/--memory Resource setting
--nodes=3 Multi-node cluster
-p Profile
addons enable Install an add-on

All lessons in Intermediate

1 What is Kubernetes?

  1. What is Kubernetes?
  2. Why Kubernetes?
  3. Cluster architecture
  4. Control plane
  5. Worker node
  6. Summary - What is Kubernetes

2 Minikube

  1. What is Minikube?
  2. Installing Minikube
  3. minikube start
  4. minikube status
  5. minikube dashboard
  6. Summary - Minikube

3 kubectl basics

  1. What is kubectl?
  2. kubectl get
  3. kubectl describe
  4. kubectl apply
  5. kubectl delete
  6. Summary - kubectl

4 Pod

  1. What is a Pod?
  2. Pod YAML
  3. Creating a Pod
  4. Pod status
  5. Multi-container Pod
  6. Summary - Pod

5 Deployment

  1. What is a Deployment?
  2. Deployment YAML
  3. Replica count
  4. Rolling update
  5. Rollback
  6. Summary - Deployment

6 ReplicaSet

  1. What is a ReplicaSet?
  2. ReplicaSet YAML
  3. ReplicaSet selector
  4. Scaling
  5. Self-healing
  6. Summary - ReplicaSet

7 Service

  1. What is a Service?
  2. ClusterIP
  3. NodePort
  4. LoadBalancer
  5. Service selector
  6. Summary - Service

8 ConfigMap

  1. What is a ConfigMap?
  2. ConfigMap YAML
  3. Environment variable
  4. Mounting as a volume
  5. kubectl create configmap
  6. Summary - ConfigMap

9 Secret

  1. What is a Secret?
  2. Secret types
  3. Secret YAML
  4. Mounting a Secret
  5. kubectl create secret
  6. Summary - Secret

10 Namespace

  1. What is a Namespace?
  2. kubectl get namespaces
  3. Creating a Namespace
  4. The -n flag
  5. Default Namespace
  6. Summary - Namespace

11 Labels and selectors

  1. What is a label?
  2. Adding labels
  3. Label selector
  4. kubectl get -l
  5. Equality and set selectors
  6. Summary - Labels

12 Project: Multi-tier app

  1. Project design
  2. Database Deployment
  3. Web Deployment
  4. ConfigMap and Secret
  5. Putting it together - multi-tier

13 Troubleshooting

  1. kubectl logs
  2. kubectl exec
  3. kubectl describe pod
  4. CrashLoopBackOff
  5. Pending Pod
  6. Summary - Troubleshooting

14 Intermediate final

  1. Challenge - Pod YAML
  2. Challenge - Deployment
  3. Challenge - Service
  4. Challenge - ConfigMap
  5. Challenge - Intermediate project