container_aria

my file learn about tech container (docker, podman, kubernetes)


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Computational Resources

Request Limit

template

apiVersion: v1
kind: Pod
metadata:
  name: pod-name
  labels:
    label-key1: label-value1
    label-key2: label-value2
    label-key3: label-value3
spec:
  volumes:
    - name: volume-name
      emptyDir: {}
  containers:
    - name: container-name
      image: image-name
      ports:
        - containerPort: 80
      resources:
        requests:
          # milli core
          cpu: 1000m
          # mebibyte
          memory: 250Mi
        limits:
          # milli core
          cpu: 2000m
          # mebibyte
          memory: 500Mi

example

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nodejs-web
  labels:
    name: nodejs-web
spec:
  replicas: 3
  selector:
    matchLabels:
      name: nodejs-web
  template:
    metadata:
      name: nodejs-web
      labels:
        name: nodejs-web
    spec:
      containers:
        - name: nodejs-web
          image: khannedy/nodejs-web
          ports:
            - containerPort: 3000
          resources:
            requests:
              cpu: 1000m
              memory: 1000Mi
            limits:
              cpu: 1000m
              memory: 1000Mi

---

apiVersion: v1
kind: Service
metadata:
  name: nodejs-web-service
spec:
  type: NodePort
  selector:
    name: nodejs-web
  ports:
    - port: 3000
      targetPort: 3000
      nodePort: 30001

run

kubectl apply -f 06\ -\ computational\ resource.yaml

# penjelasan
1000m => 1000m (milicore) => 1 core
250m => 0.25 core
1000Mi => 1 Mi(mebibyte) => 1.04 mb(megabyte)