Problems

Sharpen your DevOps skills with hands-on coding challenges

All Topics Kubernetes Terraform Docker Linux

0/78 Solved

1. Fix the CrashLooping Pod	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Easy	pods troubleshooting
2. Write a Dockerfile for a Python App	Docker 🏗️ Build	~10 min 10pts	Easy	dockerfile python
3. Fix File Permissions	Linux 🏗️ Build	~10 min 10pts	Easy	permissions chmod
4. Define a Local File Resource	Terraform 🏗️ Build	~10 min 10pts	Easy	terraform local-provider
5. Create a Basic Pod	Kubernetes 🏗️ Build	~8 min 10pts	Easy	pods basics
6. Multi-Stage Build Optimization	Docker 🏗️ Build	~20 min 10pts	Med.	multi-stage optimization
7. Write a Log Rotation Script	Linux 🏗️ Build	~20 min 10pts	Med.	bash cron
8. Create Variables and Outputs	Terraform 🏗️ Build	~15 min 10pts	Med.	variables outputs
9. Build a Docker Compose Stack	Docker 🏗️ Build	~30 min 10pts	Hard	docker-compose networking
10. Troubleshoot a Failing Systemd Service	Linux 🏗️ Build	~25 min 10pts	Hard	systemd services
11. Build a Terraform Module	Terraform 🏗️ Build	~30 min 10pts	Hard	modules reusability
12. Scale a Deployment	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Easy	deployments scaling
13. Fix the Service Selector	Kubernetes 🔧 Troubleshoot	~12 min 15pts	Easy	services selectors
14. Fix the Pending Pod	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Easy	scheduling resources
15. Fix the Wrong Container Command	Kubernetes 🔧 Troubleshoot	~8 min 10pts	Easy	pods commands
16. Create a ConfigMap and Mount It	Kubernetes 🏗️ Build	~15 min 20pts	Med.	configmaps environment-variables
17. Create a Secret and Use It	Kubernetes 🏗️ Build	~15 min 20pts	Med.	secrets security
18. Fix the Resource Limits	Kubernetes 🔧 Troubleshoot	~12 min 20pts	Med.	resources limits
19. Fix the Failing Liveness Probe	Kubernetes 🔧 Troubleshoot	~15 min 25pts	Med.	probes liveness
20. Deploy a Multi-Container Pod	Kubernetes 🏗️ Build	~15 min 25pts	Med.	multi-container sidecar
21. Deploy Redis with Persistent Storage	Kubernetes 🏗️ Build	~18 min 25pts	Med.	redis persistent-volumes
22. Fix the Missing ConfigMap	Kubernetes 🔧 Troubleshoot	~12 min 20pts	Med.	configmaps troubleshooting
23. Deploy a NodePort Service	Kubernetes 🏗️ Build	~10 min 15pts	Easy	services nodeport
24. Create a Deployment with Rolling Updates	Kubernetes 🏗️ Build	~15 min 25pts	Med.	deployments rolling-updates
25. Debug Network Policy Blocking	Kubernetes 🎯 Scenario	~20 min 35pts	Hard	network-policies networking
26. Deploy a Complete Microservice Stack	Kubernetes 🏗️ Build	~25 min 40pts	Hard	microservices deployments
27. Fix RBAC Permissions	Kubernetes 🔧 Troubleshoot	~18 min 35pts	Hard	rbac roles
28. Create a Pod with Environment Variables	Kubernetes 🏗️ Build	~8 min 10pts	Easy	pods environment-variables
29. Create a Pod with Resource Requests	Kubernetes 🏗️ Build	~8 min 10pts	Easy	pods resources
30. Create a Pod with Multiple Labels	Kubernetes 🏗️ Build	~8 min 10pts	Easy	pods labels
31. Create a Pod with a Restart Policy	Kubernetes 🏗️ Build	~8 min 10pts	Easy	pods restart-policy
32. Create a Pod with an Init Container	Kubernetes 🏗️ Build	~12 min 20pts	Med.	pods init-containers
33. Fix the ImagePullBackOff	Kubernetes 🔧 Troubleshoot	~8 min 10pts	Easy	pods troubleshooting
34. Fix the Invalid YAML Pod	Kubernetes 🔧 Troubleshoot	~8 min 10pts	Easy	pods yaml
35. Create a Pod with Annotations	Kubernetes 🏗️ Build	~8 min 10pts	Easy	pods annotations
36. Create a Pod with Liveness Probe	Kubernetes 🏗️ Build	~12 min 20pts	Med.	pods probes
37. Create a Pod with Readiness Probe	Kubernetes 🏗️ Build	~12 min 20pts	Med.	pods probes
38. Fix the OOMKilled Container	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Med.	pods resources
39. Create a Pod with TCP Liveness Probe	Kubernetes 🏗️ Build	~10 min 15pts	Med.	pods probes
40. Create a Pod with Command Probe	Kubernetes 🏗️ Build	~10 min 15pts	Med.	pods probes
41. Fix the Wrong Container Port	Kubernetes 🔧 Troubleshoot	~8 min 10pts	Easy	pods ports
42. Create a Multi-Port Pod	Kubernetes 🏗️ Build	~10 min 15pts	Med.	pods ports
43. Create a Basic Deployment	Kubernetes 🏗️ Build	~10 min 10pts	Easy	deployments basics
44. Update a Deployment Image	Kubernetes 🔧 Troubleshoot	~8 min 10pts	Easy	deployments updates
45. Rollback a Deployment	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Easy	deployments rollback
46. Create a Deployment with Resource Limits	Kubernetes 🏗️ Build	~12 min 20pts	Med.	deployments resources
47. Fix the Mismatched Selector	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Easy	deployments selectors
48. Scale a Deployment to Zero	Kubernetes 🔧 Troubleshoot	~8 min 10pts	Easy	deployments scaling
49. Create a ClusterIP Service	Kubernetes 🏗️ Build	~10 min 10pts	Easy	services clusterip
50. Create a Headless Service	Kubernetes 🏗️ Build	~12 min 20pts	Med.	services headless
51. Fix Service with No Endpoints	Kubernetes 🔧 Troubleshoot	~10 min 15pts	Easy	services selectors
52. Create a Service for a Deployment	Kubernetes 🏗️ Build	~10 min 15pts	Easy	services deployments
53. Create a ConfigMap from Literal Values	Kubernetes 🏗️ Build	~8 min 10pts	Easy	configmaps basics
54. Mount ConfigMap as Volume	Kubernetes 🏗️ Build	~15 min 20pts	Med.	configmaps volumes
55. Create an Opaque Secret	Kubernetes 🏗️ Build	~8 min 10pts	Easy	secrets security
56. Use Secret as Environment Variable	Kubernetes 🏗️ Build	~12 min 15pts	Med.	secrets environment-variables
57. Load All ConfigMap Keys as Env Vars	Kubernetes 🏗️ Build	~10 min 15pts	Med.	configmaps envfrom
58. Create a Simple Job	Kubernetes 🏗️ Build	~8 min 10pts	Easy	jobs batch
59. Create a CronJob	Kubernetes 🏗️ Build	~10 min 15pts	Easy	cronjobs scheduling
60. Create a Job with Parallelism	Kubernetes 🏗️ Build	~12 min 20pts	Med.	jobs parallelism
61. Create a Job with Backoff Limit	Kubernetes 🏗️ Build	~10 min 15pts	Med.	jobs retries
62. Create a ServiceAccount	Kubernetes 🏗️ Build	~8 min 10pts	Easy	rbac serviceaccounts
63. Create a Role for Pod Access	Kubernetes 🏗️ Build	~12 min 20pts	Med.	rbac roles
64. Create a RoleBinding	Kubernetes 🏗️ Build	~12 min 20pts	Med.	rbac rolebindings
65. Create Full RBAC Setup	Kubernetes 🏗️ Build	~18 min 30pts	Hard	rbac serviceaccounts
66. Run Pod as Non-Root User	Kubernetes 🏗️ Build	~10 min 15pts	Easy	security securitycontext
67. Set Read-Only Root Filesystem	Kubernetes 🏗️ Build	~10 min 15pts	Easy	security securitycontext
68. Drop All Linux Capabilities	Kubernetes 🏗️ Build	~12 min 20pts	Med.	security capabilities
69. Add Specific Capability	Kubernetes 🏗️ Build	~12 min 20pts	Med.	security capabilities
70. Fix Pod Running as Root	Kubernetes 🔧 Troubleshoot	~12 min 20pts	Med.	security hardening
71. STIG-Compliant Pod	Kubernetes 🏗️ Build	~20 min 35pts	Hard	security stig
72. Set Seccomp Profile	Kubernetes 🏗️ Build	~12 min 20pts	Med.	security seccomp
73. Set fsGroup for Shared Volumes	Kubernetes 🏗️ Build	~10 min 15pts	Med.	security fsgroup
74. Create a Basic StatefulSet	Kubernetes 🏗️ Build	~15 min 25pts	Med.	statefulsets headless-services
75. Create a ResourceQuota	Kubernetes 🏗️ Build	~12 min 20pts	Med.	resourcequotas governance
76. Create a LimitRange	Kubernetes 🏗️ Build	~12 min 20pts	Med.	limitranges resources
77. Create a Namespace	Kubernetes 🏗️ Build	~8 min 10pts	Easy	namespaces organization
78. Deploy to a Specific Namespace	Kubernetes 🏗️ Build	~10 min 15pts	Easy	namespaces pods