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Azure Container Registry JavaScript 的用戶端程式庫 - 1.1.0 版

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Azure Container Registry可讓您針對所有類型的容器部署，在私人登錄中儲存和管理容器映射和成品。

使用 Azure Container Registry 的用戶端程式庫來：

  • 列出登錄中的映像或成品
  • 取得影像和成品、存放庫和標記的中繼資料
  • 在登錄項目上設定讀取/寫入/刪除屬性
  • 刪除映射和成品、存放庫和標記

重要連結：

開始使用

目前支援的環境

如需詳細資訊，請參閱我們的支援原則。

注意：由於服務限制，無法在瀏覽器中使用此套件，請參閱 本檔 以取得指引。

必要條件

若要建立新的 Container Registry，您可以使用Azure入口網站、Azure PowerShell或Azure CLI。 以下是使用 Azure CLI 的範例：

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

安裝 @azure/container-registry 套件

使用 npm 安裝適用於 JavaScript 的 Container Registry 用戶端程式庫：

npm install @azure/container-registry

驗證用戶端

Azure 身分識別程式庫提供簡單的 Azure Active Directory 驗證支援。

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,
});

請注意，這些範例假設您有環境變數 CONTAINER_REGISTRY_ENDPOINT 集，也就是 URL，包括登入伺服器的名稱和 https:// 前置詞。

國家雲端

若要向 國家雲端中的登錄進行驗證，您必須對設定進行下列新增作業：

  • authorityHost在認證選項中或透過環境變數設定 AZURE_AUTHORITY_HOST
  • audience在 中設定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,
  }
);

如需搭配使用 AAD 與Azure Container Registry的詳細資訊，請參閱服務的驗證概觀。

重要概念

登錄會儲存 Docker 映射和OCI 成品。 映像或成品是由資訊清單和圖層所組成。 影像的資訊清單描述組成影像的圖層，而且是由其 摘要唯一識別。 影像也可以「標記」，讓它成為人類可讀取的別名。 影像或成品可以有零或多個與其相關聯的 標記 ，而且每個標記都會唯一識別影像。 共用相同名稱但具有不同標籤的映射集合稱為存放 庫。

如需詳細資訊，請參閱 Container Registry 概念。

範例

登錄作業

列出存放庫

逐一查看登錄中的存放庫集合。

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);
});

列出具有匿名存取權的標籤

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);
});

設定成品屬性

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);
});

刪除映像

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 和資訊清單作業

上傳影像

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);
});

下載影像

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);
});

刪除資訊清單

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);
});

刪除 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);
  }
}

疑難排解

如需疑難排解的相關資訊，請參閱 疑難排解指南。

下一步

如需示範如何使用用戶端程式庫的詳細範例，請參閱 範例 目錄。

參與

如果您希望向此程式庫投稿，請參閱投稿指南，深入瞭解如何組建與測試程式碼。

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