Docker Cheat Sheet for Common Database Engine
Written by JoliCode
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on Feb. 18, 2022
I use docker almost everyday, and usually everything is already set-up in the project.
But from time to time I need one or a few tools to do something. For example, when I contribute to a project that require a Database, I need a PostgreSQL container. Or sometime I need to explore some data and I need Elasticsearch or Grafana.
In this short blog post, I'll share with you some containers I use.
Network
Some containers need a network to talk to each other (like Elasticsearch &
Kibana or InfluxDB & Grafana). To keep it simple, I put all containers in the
same tools network.
docker network create tools
If you forget to select a network when starting a container, you can connect it later with:
docker network connect tools grafana
Container
Almost all tools write data on disk. And I don't want to lose theses data if I drop a container. So I create a named volume for each one.
If you don't remember where to mount the volume, you can use the following command to find it:
$ docker inspect mysql:8 --format '{{ .Config.Volumes }}'
map[/var/lib/mysql:{}]
In this case, the volume must be mounted to /var/lib/mysql.
I also bind the default port of the container to the host, it eases the interaction with other tools on my host.
How to start a PostgreSQL 14.x docker container
docker run -d --name=postgres14 -v postgres14:/var/lib/postgresql/data --network tools -p 5432:5432 -e POSTGRES_PASSWORD=password postgres:14
Then from your host:
PGPASSWORD=password psql -h 127.0.0.1 -U postgres
Or you can enter into the container directly:
docker exec -it postgres14 psql -U postgres
How to start a MySQL 8.x docker container
docker run -d --name mysql8 -v mysql8:/var/lib/mysql --network tools -p 3306:3306 -e MYSQL_ROOT_PASSWORD=password mysql:8
Then from your host:
mysql -h127.0.0.1 -uroot -ppassword
Or you can enter into the container directly:
docker exec -it mysql8 mysql -uroot -ppassword
How to start a Redis 6.x docker container
docker run -d --name redis6 -v redis6:/data --network tools -p 6379:6379 redis:6
Then from your host:
redis-cli
Or you can enter into the container directly:
docker exec -it redis6 redis-cli
How to start a RabbitMQ 3.x docker container
docker run -d --name rabbitmq3 -v rabbitmq3:/var/lib/rabbitmq --network tools -p 5672:5672 -p 15672:15672 rabbitmq:3.9-management
Then you can open http://127.0.0.1:15672/
How to start a InfluxDB 1.7.x docker container
docker run -d --name influxdb1 -v influxdb1:/var/lib/influxdb --network tools -p 8086:8086 influxdb:1.7
The API is available at http://127.0.0.1:8086/
You can create your first database with:
docker exec influxdb1 influx -execute "create database stat"
Then
docker exec -it influxdb1 influx --database stat
How to start a Grafana (OSS) docker container
docker run -d --name grafana -v grafana:/var/lib/grafana/ --network tools -p 3000:3000 grafana/grafana-oss
Then you can open http://127.0.0.1:3000/
How to start a Elasticsearch (7.x) docker container
docker run -d --name elasticsearch7 -v elasticsearch7:/usr/share/elasticsearch/data --network tools -p 9200:9200 -e ES_JAVA_OPTS="-Xms1g -Xmx1g" -e "discovery.type=single-node" docker.elastic.co/elasticsearch/elasticsearch:7.13.4
The API is available at http://127.0.0.1:9200/
How to start a Kibana (7.x) docker container
docker run -d --name kibana7 --network tools -p 5601:5601 -e 'ELASTICSEARCH_HOSTS=["http://elasticsearch7:9200"]' docker.elastic.co/kibana/kibana:7.13.4
Then you can open http://127.0.0.1:5601/
Stop / Start
When you don’t need the container anymore, you can stop it with:
docker stop postgres14
And it you need it back:
docker postgres14
Conclusion
Docker is a very powerful tool, and can help to isolate your development environment. It can also help you to test some product before really integrate them in your favorite stack.
I hope you like this cheat sheet. I'll keep it updated, so don't hesitate to bookmark it.