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This script is an example of a scenario that can be used as part of the interview screening process to hire employees for SRE (Site Reliability Engineer) and DevOps positions. The expected execution time should not exceed 25 minutes. The technology stack includes AWS, Kubernetes, Helm, and Prometheus.

Allowed resources

Kubernetes Documentation:

https://kubernetes.io/docs/ and their subdomains

https://kubernetes.io/blog/ and their subdomains

https://docs.aws.amazon.com/ and their subdomains

https://prometheus.io/ and their subdomains

https://github.com/prometheus-community/helm-charts/ and their subdomains

https://github.com/prometheus-operator/prometheus-operator/tree/main/Documentation/user-guides/ and their subdomains

• run time_left on work pc to check time
• run check_result on work pc to check result
• time = 20 minutes

Questions

1	Using AWS CLI, get all ec2 instances with the tag env_name=hr-mock.
Task weight	1%
Cluster	-
Acceptance criteria	- region: eu-north-1 - output: json - save output to : /var/work/tests/artifacts/1/ec2_1.json

2	Update deployment named test-app in ns = dev-team.
Task weight	1%
Cluster	cluster2
Acceptance criteria	- ns: dev-team - deployment name: test-app - replicas: 4 - image: nginx:stable

3	Install helm release kube-prometheus-stack
Task weight	1%
Cluster	cluster1
Acceptance criteria	- ns: monitoring - release name : kube-prometheus-stack - repository: https://prometheus-community.github.io/helm-charts - version: 45.4.0 - values file: /var/work/tests/artifacts/kube-prometheus-stack.yaml

4	Create prometheus operator crd serviceMonitor
Task weight	1%
Cluster	cluster1
Acceptance criteria	- ns: prod - service: app - service.port: metrics - for checking result you can make http request to : kube-prometheus-stack-prometheus.monitoring.svc.cluster.local:9090/api/v1/query?query=requests_per_second

5	Get nodes with the label work_type=infra
Task weight	1%
Cluster	cluster1
Acceptance criteria	- node label: work_type=infra - format type: json - save path : /var/work/tests/artifacts/5/nodes.json