> ## Documentation Index
> Fetch the complete documentation index at: https://docsdrop.erikraft.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Docker Swarm Usage

> Guide for deploying ErikrafT Drop using Docker Swarm with health checks

# Docker Swarm Usage

## Healthcheck

The [Docker Image](../Dockerfile) includes a health check with the following options:

```
--interval=30s
```

> Specifies the time interval to run the health check. \
> In this case, the health check is performed every 30 seconds.

```
--timeout=10s
```

> Specifies the amount of time to wait for a response from the "HEALTHCHECK" command. \
> If the response does not arrive within 10 seconds, the health check fails.

```
--start-period=5s
```

> Specifies the amount of time to wait before starting the health check process. \
> In this case, the health check process will begin 5 seconds after the container is started.

```
--retries=3
```

> Specifies the number of times Docker should retry the health check \
> before considering the container to be unhealthy.

The CMD instruction is used to define the command that will be run as part of the health check. \
In this case, the command is `wget --quiet --tries=1 --spider http://localhost:3000/ || exit 1`. \
This command will attempt to connect to `http://localhost:3000/` \
and if it fails it will exit with a status code of `1`. \
If this command returns a status code other than `0`, the health check fails.

Overall, this "HEALTHCHECK" instruction is defining a health check process \
that runs every 30 seconds, and waits up to 10 seconds for a response,