77 lines
2 KiB
Markdown
77 lines
2 KiB
Markdown
---
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description: Explains how to use the Google Cloud Storage drivers
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keywords:
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- registry, service, driver, images, storage, gcs, google, cloud
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menu:
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main:
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parent: smn_storagedrivers
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title: GCS storage driver
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---
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# Google Cloud Storage driver
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An implementation of the `storagedriver.StorageDriver` interface which uses Google Cloud for object storage.
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## Parameters
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<table>
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<tr>
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<th>Parameter</th>
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<th>Required</th>
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<th>Description</th>
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</tr>
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<tr>
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<td>
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<code>bucket</code>
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</td>
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<td>
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yes
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</td>
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<td>
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Storage bucket name.
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</td>
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</tr>
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<tr>
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<td>
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<code>keyfile</code>
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</td>
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<td>
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no
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</td>
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<td>
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A private service account key file in JSON format. Instead of a key file <a href="https://developers.google.com/identity/protocols/application-default-credentials">Google Application Default Credentials</a> can be used.
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</td>
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</tr>
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<tr>
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<td>
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<code>rootdirectory</code>
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</td>
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<td>
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no
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</td>
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<td>
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This is a prefix that will be applied to all Google Cloud Storage keys to allow you to segment data in your bucket if necessary.
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</tr>
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</tr>
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<tr>
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<td>
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<code>chunksize</code>
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</td>
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<td>
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no (default 5242880)
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</td>
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<td>
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This is the chunk size used for uploading large blobs, must be a multiple of 256*1024.
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</tr>
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</table>
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`bucket`: The name of your Google Cloud Storage bucket where you wish to store objects (needs to already be created prior to driver initialization).
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`keyfile`: (optional) A private key file in JSON format, used for [Service Account Authentication](https://cloud.google.com/storage/docs/authentication#service_accounts).
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**Note** Instead of a key file you can use [Google Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials).
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`rootdirectory`: (optional) The root directory tree in which all registry files will be stored. Defaults to the empty string (bucket root).
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