push-to-registry

作成者： hashicorp

PackerビルドのメタデータをHCP Packerレジストリにプッシュし、イメージのライフサイクル追跡とガバナンスを実現します。ビルドアーティファクトを最小限のオーバーヘッドでHCP Packerに登録し、メタデータのみ（実際のイメージは含まない）を保存して、ビルド時間に1分未満の追加で済みます。バケットレベルのラベル（ビルドごとに更新）と、バージョン管理およびコンプライアンス追跡のための不変のビルドレベルラベル（git SHA、タイムスタンプ）をサポートします。hcp_packer_artifactデータソースを介してTerraformと統合し、イメージをクエリしてデプロイします。

npx skills add https://github.com/hashicorp/agent-skills --skill push-to-registry

ZIPダウンロード GitHub

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Push to HCP Packer Registry

Configure Packer templates to push build metadata to HCP Packer registry.

Reference: HCP Packer Registry

Note: HCP Packer is free for basic use. Builds push metadata only (not actual images), adding minimal overhead (<1 minute).

Basic Registry Configuration

packer {
  required_version = ">= 1.7.7"
}

variable "image_name" {
  type    = string
  default = "web-server"
}

locals {
  timestamp = regex_replace(timestamp(), "[- TZ:]", "")
}

source "amazon-ebs" "ubuntu" {
  region        = "us-west-2"
  instance_type = "t3.micro"

  source_ami_filter {
    filters = {
      name = "ubuntu/images/*ubuntu-jammy-22.04-amd64-server-*"
    }
    most_recent = true
    owners      = ["099720109477"]
  }

  ssh_username = "ubuntu"
  ami_name     = "${var.image_name}-${local.timestamp}"
}

build {
  sources = ["source.amazon-ebs.ubuntu"]

  hcp_packer_registry {
    bucket_name = var.image_name
    description = "Ubuntu 22.04 base image for web servers"

    bucket_labels = {
      "os"   = "ubuntu"
      "team" = "platform"
    }

    build_labels = {
      "build-time" = local.timestamp
    }
  }

  provisioner "shell" {
    inline = [
      "sudo apt-get update",
      "sudo apt-get upgrade -y",
    ]
  }
}

Authentication

Set environment variables before building:

export HCP_CLIENT_ID="your-service-principal-client-id"
export HCP_CLIENT_SECRET="your-service-principal-secret"
export HCP_ORGANIZATION_ID="your-org-id"
export HCP_PROJECT_ID="your-project-id"

packer build .

Create HCP Service Principal

Navigate to HCP → Access Control (IAM)
Create Service Principal
Grant "Contributor" role on project
Generate client secret
Save client ID and secret

Registry Configuration Options

bucket_name (required)

The image identifier. Must stay consistent across builds!

bucket_name = "web-server"  # Keep this constant

bucket_labels (optional)

Metadata at bucket level. Updates with each build.

bucket_labels = {
  "os"        = "ubuntu"
  "team"      = "platform"
  "component" = "web"
}

build_labels (optional)

Metadata for each iteration. Immutable after build completes.

build_labels = {
  "build-time" = local.timestamp
  "git-commit" = var.git_commit
}

CI/CD Integration

GitHub Actions

name: Build and Push to HCP Packer

on:
  push:
    branches: [main]

env:
  HCP_CLIENT_ID: ${{ secrets.HCP_CLIENT_ID }}
  HCP_CLIENT_SECRET: ${{ secrets.HCP_CLIENT_SECRET }}
  HCP_ORGANIZATION_ID: ${{ secrets.HCP_ORGANIZATION_ID }}
  HCP_PROJECT_ID: ${{ secrets.HCP_PROJECT_ID }}

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: hashicorp/setup-packer@main

      - name: Build and push
        run: |
          packer init .
          packer build \
            -var "git_commit=${{ github.sha }}" \
            .

Querying in Terraform

data "hcp_packer_artifact" "ubuntu" {
  bucket_name  = "web-server"
  channel_name = "production"
  platform     = "aws"
  region       = "us-west-2"
}

resource "aws_instance" "web" {
  ami           = data.hcp_packer_artifact.ubuntu.external_identifier
  instance_type = "t3.micro"

  tags = {
    PackerBucket = data.hcp_packer_artifact.ubuntu.bucket_name
  }
}