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How are Kubernetes and Docker related?

Anjali Sharma answered on January 10, 2023 Popularity 5/10 Helpfulness 2/10

answer How are Kubernetes and Docker related?

How are Kubernetes and Docker related?

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. Docker is an open-source platform used to handle software development.

Its main benefit is that it packages the settings and dependencies that the software/application needs to run into a container, which allows for portability and several other advantages.

Kubernetes allows for the manual linking and orchestration of several containers, running on multiple hosts that have been created using Docker.

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: fluentd-elasticsearch
  namespace: kube-system
  labels:
    k8s-app: fluentd-logging
spec:
  selector:
    matchLabels:
      name: fluentd-elasticsearch
  template:
    metadata:
      labels:
        name: fluentd-elasticsearch
    spec:
      tolerations:
      # these tolerations are to have the daemonset runnable on control plane nodes
      # remove them if your control plane nodes should not run pods
      - key: node-role.kubernetes.io/control-plane
        operator: Exists
        effect: NoSchedule
      - key: node-role.kubernetes.io/master
        operator: Exists
        effect: NoSchedule
      containers:
      - name: fluentd-elasticsearch
        image: quay.io/fluentd_elasticsearch/fluentd:v2.5.2
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 200Mi
        volumeMounts:
        - name: varlog
          mountPath: /var/log
      terminationGracePeriodSeconds: 30
      volumes:
      - name: varlog
        hostPath:
          path: /var/log

https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/

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Source: Grepper

Tags: docker kubernetes whatever

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Contributed on Jan 10 2023

Anjali Sharma

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How are Kubernetes and Docker related?

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