Set Resource Limits in Kubernetes Pods (httpd:latest)

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Que:- 

The DevOps team has noticed performance issues in some Kubernetes-hosted applications due to resource constraints. To address this, they plan to set limits on resource utilization. Here are the details:

Create a pod named httpd-pod with a container named httpd-container. Use the httpd image with the latest tag (specify as httpd:latest). Set the following resource limits:

Requests: Memory: 15Mi, CPU: 100m

Limits: Memory: 20Mi, CPU: 100m

Ans:-
 

thor@jumphost ~$ cat pod.yaml  

apiVersion: v1

kind: Pod

metadata:

  name: httpd-pod

  labels:

    app: httpd

spec:

  containers:

  - name: httpd-container

    image: httpd:latest

    resources:

      requests:

        memory: "15Mi"

        cpu: "100m"

      limits:

        memory: "20Mi"

        cpu: "100m"

    ports:

    - containerPort: 80

thor@jumphost ~$ 

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

pod/httpd-pod created

thor@jumphost ~$ kubectl get pods

NAME        READY   STATUS    RESTARTS   AGE

httpd-pod   1/1     Running   0          12s

thor@jumphost ~$ kubectl describe pod httpd-pod 

Name:             httpd-pod

Namespace:        default

Priority:         0

Service Account:  default

Node:             kodekloud-control-plane/172.17.0.2

Start Time:       Fri, 03 Oct 2025 07:00:16 +0000

Labels:           app=httpd

Annotations:      <none>

Status:           Running

IP:               10.244.0.5

IPs:

  IP:  10.244.0.5

Containers:

  httpd-container:

    Container ID:   containerd://bbd80ea55fe8cd5b9f3ac74b9cb10a368c1a0a1e33a06192268c6d2bcf58c39e

    Image:          httpd:latest

    Image ID:       docker.io/library/httpd@sha256:ca375ab8ef2cb8bede6b1bb97a943cce7f0a304d5459c05235b47bc2dccb98cd

    Port:           80/TCP

    Host Port:      0/TCP

    State:          Running

      Started:      Fri, 03 Oct 2025 07:00:22 +0000

    Ready:          True

    Restart Count:  0

    Limits:

      cpu:     100m

      memory:  20Mi

    Requests:

      cpu:        100m

      memory:     15Mi

    Environment:  <none>

    Mounts:

      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-jrm74 (ro)

Conditions:

  Type              Status

  Initialized       True 

  Ready             True 

  ContainersReady   True 

  PodScheduled      True 

Volumes:

  kube-api-access-jrm74:

    Type:                    Projected (a volume that contains injected data from multiple sources)

    TokenExpirationSeconds:  3607

    ConfigMapName:           kube-root-ca.crt

    ConfigMapOptional:       <nil>

    DownwardAPI:             true

QoS Class:                   Burstable

Node-Selectors:              <none>

Tolerations:                 node.kubernetes.io/not-ready:NoExecute op=Exists for 300s

                             node.kubernetes.io/unreachable:NoExecute op=Exists for 300s

Events:

  Type    Reason     Age   From               Message

  ----    ------     ----  ----               -------

  Normal  Scheduled  99s   default-scheduler  Successfully assigned default/httpd-pod to kodekloud-control-plane

  Normal  Pulling    98s   kubelet            Pulling image "httpd:latest"

  Normal  Pulled     93s   kubelet            Successfully pulled image "httpd:latest" in 5.133084161s (5.1331417s including waiting)

  Normal  Created    93s   kubelet            Created container httpd-container

  Normal  Started    93s   kubelet            Started container httpd-container

thor@jumphost ~$