Mail

Having written some e-mail handling, sending or receiving library you’d like to run some integration tests against a real mail server? Then GreenMail might help you out here .. the framework is not quite new on the market but it is really easy to setup IMAP,SMTP or POP3 services with it and it comes with some helpful libraries making your life a bit easier here. That’s why I’ve come to the idea to share some examples for setting up different server instances, creating user accounts and – at last – fetching and validating e-mails… ...

Inspect Docker Image with dive Install dive brew install dive Now we can run dive against any Docker image we wish to inspect…​ Run dive dive confluentinc/cp-kafka:5.4.3 Figure 1. Screenshot of dive analyzing the Kafka Docker image Resources: dive on GitHub Introspect Private Docker Registry List images: curl -s https://the-registry-url/v2/_catalog Get tags for an image curl -s https://the-registry-url/v2/the-image-name/tags/list An example: curl -s https://registry.local/v2/alpine/rabbitmq/tags/list {"name":"alpine/rabbitmq","tags":["3.9.17"]} Search for image docker search mysql Run bash in container docker exec -it NAME /bin/bash ...

These are not only linux snippets but also bash snippets and snippets using tools that run under Linux, *nix or sometimes even MacOSX, I should reorder this article someday ;) Settings for more reliable bash scripts set -euo pipefail this gives us …​ -e: exit script if a single command fails -u: exit script if an unset variable is used -o pipefail: return value of a pipeline is the status of the last command to exit with a non-zero status, or zero if no command exited with a non-zero status ...