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…
Docker
What are the best free and paid resources to learn Docker, Kubernetes, and prepare for the CKA?
I'm a Linux system administrator at the L1 level and I'm new to containers and orchestration. I'd like to learn Docker and Kubernetes from the ground up, eventually…
Is WSL2 a good way to start learning Linux for backend development?
I'm a complete beginner using Windows, and I'd like to become a backend developer. Dual-booting makes me nervous because I've never partitioned a drive and I'm worried about…
Are Docker’s labs outdated, or am I missing a setup requirement?
I'm running Docker inside a Linux VM on a Proxmox homelab and have been using it to practice writing Dockerfiles and Compose files. The official guides and labs…
How do I install Docker and Docker Compose on Amazon Linux 2023?
I'm using an Amazon Linux 2023 instance and followed Docker's installation instructions for RHEL. When I run `sudo dnf install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin --assumeyes --quiet`, DNF…
Is WSL2 enough to start learning Linux for backend development?
I'm a complete beginner using Windows, and I'd like to become a backend developer. I'm nervous about dual-booting because I've never partitioned a drive and don't want to…
How can I increase Frigate’s Docker shared memory without reinstalling Docker?
I'm running Frigate on Ubuntu 22.04 using Docker, and Frigate reports that its shared-memory (/dev/shm) allocation needs to be increased. I was wondering whether Docker has a graphical…
How do I install Docker and Docker Compose on Amazon Linux 2023?
I'm setting up an Amazon Linux 2023 instance and followed Docker's installation instructions for RHEL. However, running `sudo dnf install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin --assumeyes --quiet` fails…
What are the best free and affordable resources to learn Docker and Kubernetes?
I'm a Linux system administrator at the entry level and I'm new to containers and orchestration. I'd like to learn Docker and Kubernetes from the ground up, ideally…
What fundamentals should I learn to troubleshoot my local AI setup?
I recently started running local AI tools such as Ollama, Open WebUI, and Docker, but I relied almost entirely on AI-generated instructions to set everything up. I'm reasonably…
How do I install Docker and Docker Compose on Amazon Linux 2023?
I'm setting up an EC2 instance running Amazon Linux 2023 and followed Docker's RHEL installation instructions. When I run `sudo dnf install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin --assumeyes…
Are Docker’s labs outdated, or am I missing a setup requirement?
I run Docker inside a Linux VM on a Proxmox homelab and have been using it to experiment with containers. My main goal is to become more comfortable…
Why Is Docker’s WSL Data Folder Using 137 GB of Disk Space?
The Docker data folder inside WSL is using about 137 GB on my server, which seems excessive because the only container I currently run is RomM. I've tried…
How can a Docker container connect to PostgreSQL running on the VPS host?
I'm installing Psono on a VPS and running PostgreSQL directly on the host rather than in a container. PostgreSQL works when I connect locally on the VPS and…
What computer and programming fundamentals should I learn to troubleshoot my local AI setup?
I recently started running local AI tools such as Ollama, Open WebUI, and Docker, mostly by following AI-generated instructions. I was able to get things running from Windows…
How do I install Docker and Docker Compose on Amazon Linux 2023?
I'm running Amazon Linux 2023 on an EC2 instance and tried installing Docker with the package names from Docker's RHEL instructions: `docker-ce`, `docker-ce-cli`, `containerd.io`, `docker-buildx-plugin`, and `docker-compose-plugin`. DNF…
How can I increase Frigate’s Docker shared memory on Ubuntu?
I'm running Ubuntu 22.04 with Frigate deployed in Docker. Frigate reports that the container's shared-memory size needs to be increased. I was wondering whether Docker has a graphical…
Why Is Docker’s WSL Data Folder Using 137 GB of Storage?
The WSL Docker data directory on my server has grown to about 137 GB, which seems excessive because the only container I currently run is RomM. I've tried…
How should I design resilient Docker storage and backups?
I run Docker on Ubuntu with a NAS storing large files such as photos over NFS. However, application data and databases, including my photo-management database, currently live on…
Docker container times out when connecting to PostgreSQL on the VPS host
I'm installing Psono on a VPS and running PostgreSQL directly on the host rather than in a container. PostgreSQL works from the VPS itself and from my home…