Docker Samples

Collection of docker-compose, swarm and kubernetes samples for different scenarios. The motivation of this project is to keep tracking of new releases and to document real-world scenarios for a production environment. Feel free to contribute with more scenarios.

Overview

Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration. To install follow the instructions and pre-requirements.

Basic compose commands

running

cd [folder]
docker-compose up -d

monitoring

docker-compose logs -f

stop

docker-compose stop

clean up

docker-compose down
#clean databases and volumes
docker-compose down -v

Basic Swarm commands

running

cd [folder]
docker stack deploy -c docker-stack.yml <service-name>

monitoring

docker service logs -f <service-name>

clean up

docker stack rm <service-name>
#clean databases and volumes
docker volume prune

Basic Kubernetes Commands

running in declarative mode

cd [folder]
kubectl apply -f k8s-specs/

monitoring

kubectl logs deploy/<servicename> -n namespace --follow

clean up

kubectl delete -f k8s-specs

Key features

The examples include option to create database user for the application avoiding using root user as in most of the samples. Also, create scripts that allow use secrets even for custom database users.