Deploying Iron Gallery & Iron DB on Kubernetes: Complete DevOps Setup

Our course you can check :-   Udemy course  

Ques:-  

There is an iron gallery app that DevOps team was developing. They have recently customized the app and are going to deploy the same on the Kubernetes cluster. Below you can find more details:

Create a namespace iron-namespace-devops

Create a deployment iron-gallery-deployment-devops for iron gallery under the same namespace you created.

:- Labels run should be iron-gallery.

:- Replicas count should be 1.

:- Selector's matchLabels run should be iron-gallery.

:- Template labels run should be iron-gallery under metadata.

:- The container should be named as iron-gallery-container-devops, use kodekloud/irongallery:2.0 image ( use exact image name / tag ).

:- Resources limits for memory should be 100Mi and for CPU should be 50m.

:- First volumeMount name should be config, its mountPath should be /usr/share/nginx/html/data.

:- Second volumeMount name should be images, its mountPath should be /usr/share/nginx/html/uploads.

:- First volume name should be config and give it emptyDir and second volume name should be images, also give it emptyDir.

Create a deployment iron-db-deployment-devops for iron db under the same namespace.

:- Labels db should be mariadb.

:- Replicas count should be 1.

:- Selector's matchLabels db should be mariadb.

:- Template labels db should be mariadb under metadata.

:- The container name should be iron-db-container-devops, use kodekloud/irondb:2.0 image ( use exact image name / tag ).

:- Define environment, set MYSQL_DATABASE its value should be database_blog, set MYSQL_ROOT_PASSWORD and MYSQL_PASSWORD value should be with some complex passwords for DB connections, and MYSQL_USER value should be any custom user ( except root ).

:- Volume mount name should be db and its mountPath should be /var/lib/mysql. Volume name should be db and give it an emptyDir.

Create a service for iron db which should be named iron-db-service-devops under the same namespace. Configure spec as selector's db should be mariadb. Protocol should be TCP, port and targetPort should be 3306 and its type should be ClusterIP.

Create a service for iron gallery which should be named iron-gallery-service-devops under the same namespace. Configure spec as selector's run should be iron-gallery. Protocol should be TCP, port and targetPort should be 80, nodePort should be 32678 and its type should be NodePort.

Ans:-

Here is your combined Kubernetes YAML file containing all the required resources for the Iron Gallery and Iron DB deployments and services:

raj@jumphost ~$ cat pod.yaml

---

apiVersion: v1

kind: Namespace

metadata:

  name: iron-namespace-devops

---

apiVersion: apps/v1

kind: Deployment

metadata:

  name: iron-gallery-deployment-devops

  namespace: iron-namespace-devops

spec:

  replicas: 1

  selector:

    matchLabels:

      run: iron-gallery

  template:

    metadata:

      labels:

        run: iron-gallery

    spec:

      containers:

        - name: iron-gallery-container-devops

          image: kodekloud/irongallery:2.0

          resources:

            limits:

              memory: "100Mi"

              cpu: "50m"

          volumeMounts:

            - name: config

              mountPath: /usr/share/nginx/html/data

            - name: images

              mountPath: /usr/share/nginx/html/uploads

      volumes:

        - name: config

          emptyDir: {}

        - name: images

          emptyDir: {}

---

apiVersion: apps/v1

kind: Deployment

metadata:

  name: iron-db-deployment-devops

  namespace: iron-namespace-devops

spec:

  replicas: 1

  selector:

    matchLabels:

      db: mariadb

  template:

    metadata:

      labels:

        db: mariadb

    spec:

      containers:

        - name: iron-db-container-devops

          image: kodekloud/irondb:2.0

          env:

            - name: MYSQL_DATABASE

              value: database_blog

            - name: MYSQL_ROOT_PASSWORD

              value: "R@nd0mP@ssw0rd!"

            - name: MYSQL_PASSWORD

              value: "C0mpl3xP@ss123"

            - name: MYSQL_USER

              value: ironuser

          volumeMounts:

            - name: db

              mountPath: /var/lib/mysql

      volumes:

        - name: db

          emptyDir: {}

---

apiVersion: v1

kind: Service

metadata:

  name: iron-db-service-devops

  namespace: iron-namespace-devops

spec:

  selector:

    db: mariadb

  ports:

    - protocol: TCP

      port: 3306

      targetPort: 3306

  type: ClusterIP

---

apiVersion: v1

kind: Service

metadata:

  name: iron-gallery-service-devops

  namespace: iron-namespace-devops

spec:

  selector:

    run: iron-gallery

  ports:

    - protocol: TCP

      port: 80

      targetPort: 80

      nodePort: 32678

  type: NodePort

 

raj@jumphost ~$ kubectl apply -f pod.yaml 

namespace/iron-namespace-devops created

deployment.apps/iron-gallery-deployment-devops created

deployment.apps/iron-db-deployment-devops created

service/iron-db-service-devops created

service/iron-gallery-service-devops created

raj@jumphost ~$ kubectl get all -n iron-namespace-devops

NAME                                                 READY   STATUS    RESTARTS   AGE

pod/iron-db-deployment-devops-585964656b-2lblt       1/1     Running   0          29s

pod/iron-gallery-deployment-devops-9c67c8cb7-xf5nn   1/1     Running   0          29s

NAME                                  TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE

service/iron-db-service-devops        ClusterIP   10.96.73.188   <none>        3306/TCP       29s

service/iron-gallery-service-devops   NodePort    10.96.157.94   <none>        80:32678/TCP   29s

NAME                                             READY   UP-TO-DATE   AVAILABLE   AGE

deployment.apps/iron-db-deployment-devops        1/1     1            1           29s

deployment.apps/iron-gallery-deployment-devops   1/1     1            1           29s

NAME                                                       DESIRED   CURRENT   READY   AGE

replicaset.apps/iron-db-deployment-devops-585964656b       1         1         1       29s

replicaset.apps/iron-gallery-deployment-devops-9c67c8cb7   1         1         1       29s

raj@jumphost ~$ 

Conclusion:-

Learn how to deploy a real-world application stack on Kubernetes using best practices. In this hands-on tutorial, we’ll walk through deploying the Iron Gallery frontend and Iron DB backend using custom configurations, resource limits, environment variables, and services. You’ll learn how to:

• Create and manage Kubernetes namespaces
• Deploy applications with resource constraints
• Configure volume mounts using emptyDir
• Set up environment variables for secure database access
• Expose services using ClusterIP and NodePort
• Use labels and selectors for efficient pod management

This video is perfect for DevOps engineers, SREs, and Kubernetes learners looking to practice real deployment scenarios.