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适用于 JavaScript 的 Azure 容器注册表客户端库 - 版本 1.1.0

项目
05/17/2023

Azure 容器注册表允许在专用注册表中存储和管理所有类型的容器部署的容器映像和项目。

使用 Azure 容器注册表客户端库执行以下操作：

列出注册表中的映像或项目
获取图像和项目、存储库和标记的元数据
设置注册表项的读取/写入/删除属性
删除映像和项目、存储库和标记

关键链接：

入门

目前支持的环境

LTS 版本的 Node.js

有关更多详细信息，请参阅我们的支持政策。

注意：由于服务限制，无法在浏览器中使用此包，请参阅此文档以获取指导。

先决条件

若要创建新的容器注册表，可以使用 Azure 门户、Azure PowerShell或 Azure CLI。下面是使用 Azure CLI 的示例：

az acr create --name MyContainerRegistry --resource-group MyResourceGroup --location westus --sku Basic

安装 `@azure/container-registry` 包

使用 npm 安装适用于 JavaScript 的容器注册表客户端库：

npm install @azure/container-registry

验证客户端

Azure 标识库为身份验证提供简单的 Azure Active Directory 支持。

const {
  ContainerRegistryClient,
  KnownContainerRegistryAudience,
} = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");

const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT;
// Create a ContainerRegistryClient that will authenticate through Active Directory
const client = new ContainerRegistryClient(endpoint, new DefaultAzureCredential(), {
  audience: KnownContainerRegistryAudience.AzureResourceManagerPublicCloud,
});

请注意，这些示例假定你有一个 CONTAINER_REGISTRY_ENDPOINT 环境变量集，该变量集是包含登录服务器名称和前缀的 https:// URL。

国家云

若要使用国家云中的注册表进行身份验证，需要对配置进行以下添加：

在authorityHost凭据选项中或通过环境变量设置AZURE_AUTHORITY_HOST
在中 audience 设置 ContainerRegistryClientOptions

const {
  ContainerRegistryClient,
  KnownContainerRegistryAudience,
} = require("@azure/container-registry");
const { DefaultAzureCredential, AzureAuthorityHosts } = require("@azure/identity");

const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT;
// Create a ContainerRegistryClient that will authenticate through AAD in the China national cloud
const client = new ContainerRegistryClient(
  endpoint,
  new DefaultAzureCredential({ authorityHost: AzureAuthorityHosts.AzureChina }),
  {
    audience: KnownContainerRegistryAudience.AzureResourceManagerChina,
  }
);

有关将 AAD 与 Azure 容器注册表配合使用的详细信息，请参阅服务的身份验证概述。

关键概念

注册表存储 Docker 映像和 OCI 项目。映像或项目由清单和各层组成。映像清单描述构成映像的层，并由其摘要唯一标识。还可以对图像进行“标记”，以为其提供可读别名。图像或项目可以有零个或多个与之关联的标记，并且每个标记唯一标识图像。共享同名但标记不同的映像集合称为 存储库。

有关详细信息，请参阅容器注册表概念。

示例

注册表操作

列出存储库

循环访问注册表中的存储库集合。

const {
  ContainerRegistryClient,
  KnownContainerRegistryAudience,
} = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");

async function main() {
  // endpoint should be in the form of "https://myregistryname.azurecr.io"
  // where "myregistryname" is the actual name of your registry
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";
  const client = new ContainerRegistryClient(endpoint, new DefaultAzureCredential(), {
    audience: KnownContainerRegistryAudience.AzureResourceManagerPublicCloud,
  });

  console.log("Listing repositories");
  const iterator = client.listRepositoryNames();
  for await (const repository of iterator) {
    console.log(`  repository: ${repository}`);
  }
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

const {
  ContainerRegistryClient,
  KnownContainerRegistryAudience,
} = require("@azure/container-registry");

async function main() {
  // Get the service endpoint from the environment
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";

  // Create a new ContainerRegistryClient for anonymous access
  const client = new ContainerRegistryClient(endpoint, {
    audience: KnownContainerRegistryAudience.AzureResourceManagerPublicCloud,
  });

  // Obtain a RegistryArtifact object to get access to image operations
  const image = client.getArtifact("library/hello-world", "latest");

  // List the set of tags on the hello_world image tagged as "latest"
  const tagIterator = image.listTagProperties();

  // Iterate through the image's tags, listing the tagged alias for the image
  console.log(`${image.fullyQualifiedReference}  has the following aliases:`);
  for await (const tag of tagIterator) {
    console.log(`  ${tag.registryLoginServer}/${tag.repositoryName}:${tag.name}`);
  }
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

编辑项目属性

const {
  ContainerRegistryClient,
  KnownContainerRegistryAudience,
} = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");

async function main() {
  // Get the service endpoint from the environment
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";

  // Create a new ContainerRegistryClient and RegistryArtifact to access image operations
  const client = new ContainerRegistryClient(endpoint, new DefaultAzureCredential(), {
    audience: KnownContainerRegistryAudience.AzureResourceManagerPublicCloud,
  });
  const image = client.getArtifact("library/hello-world", "v1");

  // Set permissions on the image's "latest" tag
  await image.updateTagProperties("latest", { canWrite: false, canDelete: false });
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

删除映像

const {
  ContainerRegistryClient,
  KnownContainerRegistryAudience,
} = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");

async function main() {
  // Get the service endpoint from the environment
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";
  // Create a new ContainerRegistryClient
  const client = new ContainerRegistryClient(endpoint, new DefaultAzureCredential(), {
    audience: KnownContainerRegistryAudience.AzureResourceManagerPublicCloud,
  });

  // Iterate through repositories
  const repositoryNames = client.listRepositoryNames();
  for await (const repositoryName of repositoryNames) {
    const repository = client.getRepository(repositoryName);
    // Obtain the images ordered from newest to oldest by passing the `order` option
    const imageManifests = repository.listManifestProperties({
      order: "LastUpdatedOnDescending",
    });
    const imagesToKeep = 3;
    let imageCount = 0;
    // Delete images older than the first three.
    for await (const manifest of imageManifests) {
      imageCount++;
      if (imageCount > imagesToKeep) {
        const image = repository.getArtifact(manifest.digest);
        console.log(`Deleting image with digest ${manifest.digest}`);
        console.log(`  Deleting the following tags from the image:`);
        for (const tagName of manifest.tags) {
          console.log(`    ${manifest.repositoryName}:${tagName}`);
          image.deleteTag(tagName);
        }
        await image.delete();
      }
    }
  }
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

Blob 和清单操作

上传图像

const { ContainerRegistryContentClient } = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");
require("dotenv").config();

async function main() {
  // endpoint should be in the form of "https://myregistryname.azurecr.io"
  // where "myregistryname" is the actual name of your registry
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";
  const repository = process.env.CONTAINER_REGISTRY_REPOSITORY || "library/hello-world";
  const client = new ContainerRegistryContentClient(
    endpoint,
    repository,
    new DefaultAzureCredential()
  );

  const config = Buffer.from("Sample config");
  const { digest: configDigest, sizeInBytes: configSize } = await client.uploadBlob(config);

  const layer = Buffer.from("Sample layer");
  const { digest: layerDigest, sizeInBytes: layerSize } = await client.uploadBlob(layer);

  const manifest = {
    schemaVersion: 2,
    config: {
      digest: configDigest,
      size: configSize,
      mediaType: "application/vnd.oci.image.config.v1+json",
    },
    layers: [
      {
        digest: layerDigest,
        size: layerSize,
        mediaType: "application/vnd.oci.image.layer.v1.tar",
      },
    ],
  };

  await client.setManifest(manifest, { tag: "demo" });
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

下载映像

const {
  ContainerRegistryContentClient,
  KnownManifestMediaType,
} = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");
const dotenv = require("dotenv");
const fs = require("fs");
dotenv.config();

function trimSha(digest) {
  const index = digest.indexOf(":");
  return index === -1 ? digest : digest.substring(index);
}

async function main() {
  // endpoint should be in the form of "https://myregistryname.azurecr.io"
  // where "myregistryname" is the actual name of your registry
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";
  const repository = process.env.CONTAINER_REGISTRY_REPOSITORY || "library/hello-world";
  const client = new ContainerRegistryContentClient(
    endpoint,
    repository,
    new DefaultAzureCredential()
  );

  // Download the manifest to obtain the list of files in the image based on the tag
  const result = await client.getManifest("demo");

  if (result.mediaType !== KnownManifestMediaType.OciImageManifest) {
    throw new Error("Expected an OCI image manifest");
  }

  const manifest = result.manifest;

  // Manifests of all media types have a buffer containing their content; this can be written to a file.
  fs.writeFileSync("manifest.json", result.content);

  const configResult = await client.downloadBlob(manifest.config.digest);
  const configFile = fs.createWriteStream("config.json");
  configResult.content.pipe(configFile);

  // Download and write out the layers
  for (const layer of manifest.layers) {
    const fileName = trimSha(layer.digest);
    const layerStream = fs.createWriteStream(fileName);
    const downloadLayerResult = await client.downloadBlob(layer.digest);
    downloadLayerResult.content.pipe(layerStream);
  }
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

删除清单

const { ContainerRegistryContentClient } = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");
require("dotenv").config();

async function main() {
  // Get the service endpoint from the environment
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";
  const repository = process.env.CONTAINER_REGISTRY_REPOSITORY || "library/hello-world";
  // Create a new ContainerRegistryClient
  const client = new ContainerRegistryContentClient(
    endpoint,
    repository,
    new DefaultAzureCredential()
  );

  const downloadResult = await client.getManifest("latest");
  await client.deleteManifest(downloadResult.digest);
}

main().catch((err) => {
  console.error("The sample encountered an error:", err);
});

删除 Blob

const {
  ContainerRegistryContentClient,
  KnownManifestMediaType,
} = require("@azure/container-registry");
const { DefaultAzureCredential } = require("@azure/identity");
require("dotenv").config();

async function main() {
  // Get the service endpoint from the environment
  const endpoint = process.env.CONTAINER_REGISTRY_ENDPOINT || "<endpoint>";
  const repository = process.env.CONTAINER_REGISTRY_REPOSITORY || "library/hello-world";
  // Create a new ContainerRegistryClient
  const client = new ContainerRegistryContentClient(
    endpoint,
    repository,
    new DefaultAzureCredential()
  );

  const downloadResult = await client.getManifest("latest");

  if (downloadResult.mediaType !== KnownManifestMediaType.OciImageManifest) {
    throw new Error("Expected an OCI image manifest");
  }

  for (const layer of downloadResult.manifest.layers) {
    await client.deleteBlob(layer.digest);
  }
}

疑难解答

有关故障排除的信息，请参阅故障排除指南。

后续步骤

有关演示如何使用客户端库的详细示例，请查看示例目录。

贡献

若要为此库做出贡献，请阅读贡献指南，详细了解如何生成和测试代码。

Microsoft Azure SDK for Javascript

曝光数

通过

适用于 JavaScript 的 Azure 容器注册表 客户端库 - 版本 1.1.0

入门