[Docker](https://docs.docker.com/get-started/overview/) is an open-source platform for developing, shipping, and running applications. It enables you to separate your
applications from your infrastructure, so you can deliver software quickly using OS-level virtualization. It helps
deliver software in packages called Containers.
To check what version of Docker you have, please use the following command.
```commandline
docker --version
```
If you need to install Docker, please visit [Get Docker](https://docs.docker.com/get-docker/).
<Note>
You must allocate at least 6GB of memory to Docker in order to run OpenMetadata. To change the memory allocation
for Docker, please visit `Preferences -> Resources -> Advanced` in your Docker Desktop.
</Note>
### Docker Compose (version v2.1.1 or greater)
The Docker `compose` package enables you to define and run multi-container Docker applications. The compose command
integrates compose functions into the Docker platform, making them available from the Docker command-line interface (
CLI). The Python packages you will install in the procedure below use compose to deploy OpenMetadata.
- **MacOS X**: Docker on MacOS X ships with compose already available in the Docker CLI.
- **Linux**: To install compose on Linux systems, please visit the Docker CLI command documentation and follow the
instructions.
To verify that the docker compose command is installed and accessible on your system, run the following command.
```commandline
docker compose version
```
Upon running this command you should see output similar to the following.
```commandline
Docker Compose version v2.1.1
```
### Install Docker Compose Version 2.0.0 on Linux
Follow the instructions [here](https://docs.docker.com/compose/cli-command/#install-on-linux) to install docker compose version 2.0.0
1. Run the following command to download the current stable release of Docker Compose
This snippet will create a directory named `openmetadata` and download the `docker-compose.yml` file automatically.
Afterwards, it will start the containers. If instead you want to download the file manually to another location,
you can do so from the Releases [page](https://github.com/open-metadata/OpenMetadata/releases).
This will start all the necessary components locally. You can validate that all containers are up
and running with `docker ps`.
```commandline
❯ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
470cc8149826 openmetadata/server:0.11.0 "./openmetadata-star…" 45 seconds ago Up 43 seconds 3306/tcp, 9200/tcp, 9300/tcp, 0.0.0.0:8585-8586->8585-8586/tcp openmetadata_server
63578aacbff5 openmetadata/ingestion:0.11.0 "./ingestion_depende…" 45 seconds ago Up 43 seconds 0.0.0.0:8080->8080/tcp openmetadata_ingestion
9f5ee8334f4b docker.elastic.co/elasticsearch/elasticsearch:7.10.2 "/tini -- /usr/local…" 45 seconds ago Up 44 seconds 0.0.0.0:9200->9200/tcp, 0.0.0.0:9300->9300/tcp openmetadata_elasticsearch
08947ab3424b openmetadata/db:0.11.0 "/entrypoint.sh mysq…" 45 seconds ago Up 44 seconds (healthy) 3306/tcp, 33060-33061/tcp openmetadata_mysql
```
In a few seconds, you should be able to access the OpenMetadata UI at [http://localhost:8585](http://localhost:8585):
### Network openmetadata_app_net Error
You might see something like:
```
The docker command executed was `/usr/local/bin/docker compose --file /var/folders/bl/rm5dhdf127ngm4rr40hvhbq40000gn/T/docker-compose.yml --project-name openmetadata up --detach`.
It returned with code 1
The content of stdout can be found above the stacktrace (it wasn't captured).
The content of stderr is 'Network openmetadata_app_net Creating
Network openmetadata_app_net Error
failed to create network openmetadata_app_net: Error response from daemon: Pool overlaps with other one on this address space
```
A common solution is to run `docker network prune`:
```
WARNING! This will remove all custom networks not used by at least one container.
```
So be careful if you want to keep up some (unused) networks from your laptop.
Do you want to connect to a container from the host [Refer](https://docs.docker.com/desktop/networking/#i-want-to-connect-from-a-container-to-a-service-on-the-host)
