Using Persistent Storage in HCS
Persistent Storage
A guide on how to use persistent storage in HCS,
You could add persistent storage to your resources, so you can preserve your data between deployments.
This persistent storage could be different in different types of Destinations.
Docker Engine
If you are using Docker Engine, persistent storage could be a volume
or a bind mount
(a file/directory from the host system - your server).
Volume
To create a volume, you need to define:
Name
of the volume.Destination Path
where the volume will be mounted inside the container.
The base directory inside the container is /app
. So if you need to store your files under storage
directory, you need to define /app/storage
as the destination path.
To prevent storage overlapping between resources, HCS automatically adds the resource’s UUID to the volume name.
Bind Mount
To create a bind mount, you need to define:
Name
of the volume, which will be used as a reference.Source Path
from the host system. No docker volume created in this case.Destination Path
where the volume will be mounted inside the container.
The base directory inside the container is /app
. So if you need to store your files under storage
directory, you need to define /app/storage
as the destination path.
Share file between more than one container? NOT RECOMMENDED.
If you mount the same file to more than one container, you will need to make sure that the proper file locking mechanism is implemented in your resources.
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