Challenges 🏆

Pick a DevOps problem matching your skill level and interests

Extract the Filesystem of a Container Image 

Medium,  on  Containers ,  Submissions: 15/63
#container-images #debugging #docker

Edit a File in a Running Container: a Slim Base Image Case 

Medium,  on  Containers ,  Submissions: 95/131
#debugging #slim-images #distroless

When a FROM scratch Container Image Is Not Good Enough 

Medium,  on  Containers ,  Submissions: 43/137
#container-images #slim-images #distroless

What Port Does This Kubernetes Pod Listen On? 

Medium,  on  Kubernetes ,  Containers ,  Networking ,  Submissions: 55/166
#debugging #slim-images #distroless

Send a Signal to a Kubernetes App: a Slim Container Case 

Medium,  on  Kubernetes ,  Containers ,  Submissions: 58/146
#ephemeral-containers #debugging #slim-images

Containers 101: Start a Container With ctr 

Medium,  on  Containers ,  Submissions: 34/116
#containers-101 #containerd #ctr

Forward a Port Using the Hackers' Swiss Army Knife: netcat  Premium

Medium,  on  Linux ,  Networking ,  Submissions: 18/67
#port-forwarding #netcat

Forward a Port Without Starting a Proxy Process 

Medium,  on  Linux ,  Networking ,  Submissions: 34/135
#port-forwarding #iptables

Connect Two Network Namespaces 

Medium,  on  Linux ,  Containers ,  Networking ,  Submissions: 44/101
#netns #veth #ip

Set Up Network Address Translation (NAT) for a Container 

Medium,  on  Linux ,  Containers ,  Networking ,  Submissions: 21/43
#netns #iptables #nat

Reading Container Image Labels Using ctr  Premium

Medium,  on  Containers ,  Submissions: 10/18
#container-images #containerd #ctr

Access a Docker Container With No Published Ports 

Medium,  on  Linux ,  Containers ,  Networking ,  Submissions: 88/131
#containerd #ctr #docker

Execute a Command in a Docker Container Using ctr 

Medium,  on  Containers ,  Submissions: 22/34
#containerd #ctr #docker

Kubernetes Pod With a Faulty Init Sequence 

Medium,  on  Kubernetes ,  Containers ,  Submissions: 31/155
#sidecar #init-containers

Kubernetes Pod With a Sleepy Init Sequence 

Medium,  on  Kubernetes ,  Containers ,  Submissions: 25/129
#sidecar #init-containers
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