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36 posts tagged with "Devops"

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Using existing Docker network error in Docker Compose

· 2 min read
Stephan Hochdörfer
Head of IT Business Operations

Following our guide to set up Traefik, Docker, and Compose with multiple networks, I ran into a problem:

a network with name customer_staging_default exists but was not created for project "customer_staging"
Set `external: true` to use an existing network

network customer_staging_default was found but has incorrect label com.docker.compose.network set to "staging_default"

PostgreSQL upgrade in a Docker setup

This blog post might be outdated!
This blog post was published more than one year ago and might be outdated!
· 2 min read
Stephan Hochdörfer
Head of IT Business Operations

One of my recent tasks was to run an upgrade of a production PostgreSQL database. Since we have PostgreSQL running in a Docker container in our Hashicorp Nomad environment, I assumed it would be enough to switch to a new Docker image and everything would be working fine.