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Autoheal your Docker containers

This blog post might be outdated!
This blog post was published more than one year ago and might be outdated!
· 3 min read
Holger Dörner
PHP Developer & Chapter Lead

Sometimes one may face the need to restart a Docker container because it does not react anymore. While there are dozens of possible ways to accomplish this, I want to show the one we recently started to incorporate into our setups.

Debugging a TraefikEE routing problem

This blog post might be outdated!
This blog post was published more than one year ago and might be outdated!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

Recently, we've been running into a weird problem. After restarting 2 nodes in our Nomad cluster, we could not properly access GitLab via SSH anymore. Web access was working fine, also cloning via https:// worked, but not via SSH which is what most of our developers use by default.

Undefined array key instance in ArgumentsResolver.php

This blog post might be outdated!
This blog post was published more than one year ago and might be outdated!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

In the last few days, I was fighting hard to understand and fix an error that occurred when trying to deploy a Magento upgrade in production for one of our merchants. During the setup:di:compile phase our CI pipeline crashed with the error Undefined array key "instance" in ArgumentsResolver.php on line 171.

Permanent SSH tunnel with systemd

This blog post might be outdated!
This blog post was published more than one year ago and might be outdated!
· 4 min read
Holger Dörner
PHP Developer & Chapter Lead

From time to time we are in need to access resources on a different server, and if it's only for a short time. The key is here to rely on simple and readily available tools.