What Do Docker EXPOSE and Kubernetes containerPort Actually Do?
I'm learning Docker and Kubernetes and was told that EXPOSE in a Dockerfile and containerPort in a Kubernetes Pod specification are only documentation. Is that completely accurate? If…
ports
How Can I Get the Ethernet Ports in My Apartment to Work?
I have Ethernet ports in every room of my apartment, and I'm trying to figure out how to set them up properly. Does anyone have advice on what…
How to Successfully Publish Traefik on a Single VM with k3s?
Hey everyone! I'm diving into my first Kubernetes cluster using k3s because I find it user-friendly. I have MediaWiki running smoothly inside the cluster, but now I want…
How to Restrict Docker Container Access to Just the Host?
I'm new to Docker and have been working on self-hosting some services. I've managed to make them accessible from outside my home network, but now I have a…
How can I completely override Docker Compose service ports using a separate file?
I'm trying to manage Docker Compose services, and I have a `compose.yml` file for a service that defines some ports: services: some-service: ports: - 80:80 - 443:443 Now,…
Why does Docker on Mac show no errors with ports defined when using host network mode?
Hey everyone! I've been trying to figure out a problem with my Docker setup on MacOS. I've got this `docker-compose.yaml` file where I defined a service like this:…
How to Securely Expose Ports in a Self-Hosted K3s Setup?
I'm looking to set up a self-hosted multi-node K3s cluster on a VPS that provides private networking, and each server has its own public IPv4 address. I'll be…