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Learn to automate security into a fast-paced DevOps environment using various open-source tools and scripts.

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A method of measuring and achieving reliability through engineering and operations work – developed by Google to manage services.

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Learn and get certified
AWS Certified DevOps Professional

Learn about the DevOps services offered by AWS and how you can use them to make your workflow more efficient.

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Kubernetes Configmap explained using example

Spread the Knowledge

Content of reverseproxy.conf

server {
    listen       80;
    server_name  localhost;

    location / {

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;

Commands to execute to create configmap

kubectl create configmap my-config --from-file=reverseproxy.conf
kubectl get cm
kubectl describe cm my-config

Example pod using configmap

apiVersion: v1
kind: Pod
  name: helloworld-nginx
    app: helloworld-nginx
  - name: nginx
    image: nginx:1.11
    - containerPort: 80
    - name: config-volume
      mountPath: /etc/nginx/conf.d
  - name: k8s-demo
    image: wardviaene/k8s-demo
    - containerPort: 3000
    - name: config-volume
        name: my-config
        - key: reverseproxy.conf
          path: myconfo.conf

Validating configmap inside a pod

kubectl exec -it helloworld-nginx /bin/bash
cd /etc/nginx/conf.d
Rajesh Kumar