Challenges 🏆

Practical DevOps problems for all skill levels and interests

Write a Dagger Function to Build a Go Project 

Medium,  on  CI/CD ,  Submissions: 3/14
#dagger #docker

Extract the Filesystem of a Container Image 

Medium,  on  Containers ,  Submissions: 20/97
#container-images #debugging #docker

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

Medium,  on  Containers ,  Submissions: 103/142
#debugging #slim-images #distroless

When a FROM scratch Container Image Is Not Good Enough 

Medium,  on  Containers ,  Submissions: 47/147
#container-images #slim-images #distroless

What Port Does This Kubernetes Pod Listen On? 

Medium,  on  Kubernetes ,  Containers ,  Networking ,  Submissions: 61/179
#debugging #slim-images #distroless

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

Medium,  on  Kubernetes ,  Containers ,  Submissions: 65/158
#ephemeral-containers #debugging #slim-images

Containers 101: Start a Container With ctr 

Medium,  on  Containers ,  Submissions: 40/130
#containers-101 #containerd #ctr

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

Medium,  on  Linux ,  Networking ,  Submissions: 19/71
#port-forwarding #netcat

Forward a Port Without Starting a Proxy Process 

Medium,  on  Linux ,  Networking ,  Submissions: 38/150
#port-forwarding #iptables

Connect Two Network Namespaces 

Medium,  on  Linux ,  Containers ,  Networking ,  Submissions: 56/124
#netns #veth #ip

Set Up Network Address Translation (NAT) for a Container 

Medium,  on  Linux ,  Containers ,  Networking ,  Submissions: 28/56
#netns #iptables #nat

Reading Container Image Labels Using ctr  Premium

Medium,  on  Containers ,  Submissions: 13/21
#container-images #containerd #ctr

Access a Docker Container With No Published Ports 

Medium,  on  Linux ,  Containers ,  Networking ,  Submissions: 93/140
#containerd #ctr #docker

Execute a Command in a Docker Container Using ctr 

Medium,  on  Containers ,  Submissions: 25/37
#containerd #ctr #docker

Kubernetes Pod With a Faulty Init Sequence 

Medium,  on  Kubernetes ,  Containers ,  Submissions: 37/171
#sidecar #init-containers

Kubernetes Pod With a Sleepy Init Sequence 

Medium,  on  Kubernetes ,  Containers ,  Submissions: 30/146
#sidecar #init-containers
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