Mode d’emploi
- Copiez la commande et examinez le paquet avant de l’installer dans votre environnement agent.
- Consultez le document original pour les outils, identifiants et environnements requis.
- Décrivez les entrées et le livrable souhaité ; comparez la sortie aux sources.
npx skills add https://github.com/hashicorp/agent-skills --skill push-to-registryAvant de commencer
- L’installation n’inclut ni abonnement au modèle, ni quota API, ni accès aux fichiers.
- Étoiles et installations reflètent l’activité, pas un test indépendant de qualité ou de sécurité.
Document Skill original
Rendu depuis le dépôt source en conservant titres, exemples, code, tableaux, liens et images.
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
hcl
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:
bash
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!
hcl
bucket_name = "web-server" # Keep this constantbucket_labels (optional)
Metadata at bucket level. Updates with each build.
hcl
bucket_labels = {
"os" = "ubuntu"
"team" = "platform"
"component" = "web"
}build_labels (optional)
Metadata for each iteration. Immutable after build completes.
hcl
build_labels = {
"build-time" = local.timestamp
"git-commit" = var.git_commit
}CI/CD Integration
GitHub Actions
yaml
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
hcl
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
}
}Common Issues
Authentication Failed
- Verify HCPCLIENTID and HCPCLIENTSECRET
- Ensure service principal has Contributor role
- Check organization and project IDs
Bucket Name Mismatch
- Keep
bucket_nameconsistent across builds - Don't include timestamps in bucket_name
- Creates new bucket if name changes
Build Fails
- Packer fails immediately if can't push metadata
- Prevents drift between artifacts and registry
- Check network connectivity to HCP API
Best Practices
- Consistent bucket names - Never change for same image type
- Meaningful labels - Use for versions, teams, compliance
- CI/CD automation - Automate builds and registry pushes
- Immutable build labels - Put changing data (git SHA, date) in build_labels
