mirror of https://github.com/docker/docs.git
62 lines
2.7 KiB
Markdown
62 lines
2.7 KiB
Markdown
---
|
|
title: "Azure Blob Storage cache"
|
|
keywords: build, buildx, cache, backend, azblob, azure
|
|
redirect_from:
|
|
- /build/building/cache/backends/azblob/
|
|
---
|
|
|
|
> **Warning**
|
|
>
|
|
> This cache backend is unreleased. You can use it today, by using the
|
|
> `moby/buildkit:master` image in your Buildx driver.
|
|
|
|
The `azblob` cache store uploads your resulting build cache to
|
|
[Azure's blob storage service](https://azure.microsoft.com/en-us/services/storage/blobs/){:target="blank" rel="noopener" class=""}.
|
|
|
|
> **Note**
|
|
>
|
|
> This cache storage backend requires using a different driver than the default
|
|
> `docker` driver - see more information on selecting a driver
|
|
> [here](../../drivers/index.md). To create a new driver (which can act as a
|
|
> simple drop-in replacement):
|
|
>
|
|
> ```console
|
|
> $ docker buildx create --use --driver=docker-container
|
|
> ```
|
|
|
|
## Synopsis
|
|
|
|
```console
|
|
$ docker buildx build --push -t <registry>/<image> \
|
|
--cache-to type=azblob,name=<cache-image>[,parameters...] \
|
|
--cache-from type=azblob,name=<cache-image>[,parameters...] .
|
|
```
|
|
|
|
The following table describes the available CSV parameters that you can pass to
|
|
`--cache-to` and `--cache-from`.
|
|
|
|
| Name | Option | Type | Default | Description |
|
|
| ------------------- | ----------------------- | ----------- | ------- | -------------------------------------------------- |
|
|
| `name` | `cache-to`,`cache-from` | String | | Required. The name of the cache image. |
|
|
| `account_url` | `cache-to`,`cache-from` | String | | Base URL of the storage account. |
|
|
| `secret_access_key` | `cache-to`,`cache-from` | String | | Blob storage account key, see [authentication][1]. |
|
|
| `mode` | `cache-to` | `min`,`max` | `min` | Cache layers to export, see [cache mode][2]. |
|
|
| `ignore-error` | `cache-to` | Boolean | `false` | Ignore errors caused by failed cache exports. |
|
|
|
|
[1]: #authentication
|
|
[2]: index.md#cache-mode
|
|
|
|
## Authentication
|
|
|
|
The `secret_access_key`, if left unspecified, is read from environment variables
|
|
on the BuildKit server following the scheme for the
|
|
[Azure Go SDK](https://docs.microsoft.com/en-us/azure/developer/go/azure-sdk-authentication){:target="blank" rel="noopener" class=""}.
|
|
The environment variables are read from the server, not the Buildx client.
|
|
|
|
## Further reading
|
|
|
|
For an introduction to caching see [Optimizing builds with cache](../index.md).
|
|
|
|
For more information on the `azblob` cache backend, see the
|
|
[BuildKit README](https://github.com/moby/buildkit#azure-blob-storage-cache-experimental){:target="blank" rel="noopener" class=""}.
|