Are databases a bad fit for Docker Swarm in production?
I'm using Docker Swarm for several stateless services and it has worked well, but I'm struggling with persistent workloads such as PostgreSQL and Redis. Shared NFS volumes become…
Docker swarm
How should databases be run reliably alongside Docker Swarm in production?
I'm comfortable using Swarm for stateless applications, but persistent services such as PostgreSQL and Redis are proving much harder. NFS volumes struggle under heavy I/O, while pinning a…
Why is my Docker Swarm overlay network using all 256 IPs with only 91 workers?
I'm deploying a Selenium Grid across 91 Docker Swarm workers and one manager. The servers were cloned from the same VM image and all have joined the swarm,…
Docker Swarm overlay network runs out of IP addresses despite only 91 workers
We are setting up more than 90 identical servers for Selenium Grid load testing. All 91 workers are joined to the same Docker Swarm, but 11 of them…
What’s a good project for learning Docker and microservices?
I'm trying to learn Docker, Docker Compose, and Docker Swarm through a practical project. I'd like to build an application from several cooperating services, then containerize the entire…
What’s a good project for learning Docker and microservices?
I'm learning Docker, Docker Compose, and Docker Swarm and would like to build a practical application while learning. I'm looking for project ideas that can be split into…
Why does my Docker Swarm PostgreSQL cluster keep falling apart?
I'm trying to run a basic highly available PostgreSQL cluster with Spilo-based images in Docker Swarm. Every few days, it starts failing in several ways: DNS resolution problems,…
Why does my Spilo PostgreSQL cluster keep falling apart in Docker Swarm?
I'm trying to run a basic highly available PostgreSQL cluster with Spilo images on a Docker Swarm setup, but every few days it starts failing in multiple ways:…
How can Swarm containers reach an OAuth2 domain through the host reverse proxy?
I run a small Docker Swarm with Traefik and Authelia, plus services such as HedgeDoc and Immich. The internal DNS record for auth.example.com points to the Swarm host…
Traefik in Docker Swarm discovers standalone containers but never issues Let’s Encrypt certificates
I'm learning Docker Swarm in a homelab and want to run Traefik on a dedicated machine while keeping applications such as Jellyfin on separate hosts. Traefik is deployed…
What are the best alternatives to LXD for a growing business?
I'm looking to transition away from using LXD for my small business as we've outgrown our current setup of two old dedicated servers. Right now, LXD in cluster…
Can I Use Docker Swarm for Simple Database Replication?
I'm running Frigate NVR at two locations. Site A has enough compute power for services like Authentik, while Site B is dedicated to just Frigate and doesn't have…
How can I efficiently move my Docker Compose setup to the cloud with high availability?
I'm currently using Docker Compose for local development and testing, and I'm looking for the best way to transition my setups to the cloud. My main objective is…
What are good self-hosted alternatives to AWS Elastic Beanstalk for GitHub deployment and auto-scaling?
I'm searching for a self-hosted platform that functions similarly to AWS Elastic Beanstalk. I want a solution that allows me to push my code to GitHub for automatic…