Should Each Service Have Its Own Database Instance?
I'm new to Docker and using it to learn and experiment. I currently have two services sharing a PostgreSQL container, with an initial migration that creates a separate…
container isolation
How do you prevent Docker network subnets from conflicting with VPNs and local environments?
I run several Docker Compose projects locally, and Docker's automatic bridge-network allocation eventually chooses subnets that overlap with routes from my LAN or VPN, especially in the 172.16.x.x…
Why Do Docker Sandboxes Provide Passwordless sudo by Default?
I'm trying to run several isolated coding agents with as little access as possible. Some should not be able to reach the web or communicate with one another,…
Is it safe to run a previously hacked WordPress site in Docker?
My website was compromised, and a suspicious file named "Trojan" was found. My hosting provider deleted several files, but the WordPress installation stopped working afterward. I'm considering restoring…
What’s the cleanest way to run two Docker Compose instances on one server?
I'm running AudioMuse-AI on a home server, but each instance can connect to either Navidrome or Jellyfin—not both. I'd like to run two separate instances at the same…
Why Does Docker on Windows Use a Linux VM?
My understanding is that Docker Desktop on Windows often runs Linux containers inside a lightweight Linux VM through WSL2 or Hyper-V. If Windows Server can run without a…
How can I run an isolated Docker instance inside a Docker container?
Hey everyone! I'm looking for some guidance on how to run a completely isolated Docker environment, including its own daemon, within another Docker container. I'm building a service…
How Does this DaemonSet Affect iptables Across the Cluster?
Hey everyone! I recently deployed a DaemonSet related to the nginx CVE-2025-1974, which you can check out [here](https://blog.abhimanyu-saharan.com/posts/ingress-nginx-cve-2025-1974-what-it-is-and-how-to-fix-it). The strange part is that while this DaemonSet modifies iptables…