Mengaktifkan IAP untuk App Engine

Halaman ini menjelaskan cara mengamankan instance App Engine dengan Identity-Aware Proxy (IAP).

Sebelum memulai

Untuk mengaktifkan IAP untuk App Engine, Anda memerlukan hal berikut:

  • Project konsol dengan penagihan diaktifkan. Google Cloud

Jika Anda belum menyiapkan instance App Engine, lihat Men-deploy App Engine untuk mengetahui panduan lengkapnya.

IAP menggunakan klien OAuth yang dikelola Google untuk mengautentikasi pengguna. Hanya pengguna dalam organisasi yang dapat mengakses aplikasi yang mengaktifkan IAP. Jika Anda ingin mengizinkan akses kepada pengguna di luar organisasi Anda, lihat Mengaktifkan IAP untuk aplikasi eksternal.

Mengaktifkan IAP

Konsol

Klien OAuth yang dikelola Google tidak tersedia saat mengaktifkan IAP menggunakan Google Cloud konsol.

Dynamic include file

If you haven't configured your project's OAuth consent screen, you'll be prompted to do so. To configure your OAuth consent screen, see Setting up your OAuth consent screen.

Setting up IAP access

  1. Go to the Identity-Aware Proxy page.
    Go to the Identity-Aware Proxy page
  2. Select the project you want to secure with IAP.
  3. Select the checkbox next to the resource you want to grant access to.
  4. On the right side panel, click Add principal.
  5. In the Add principals dialog that appears, enter the email addresses of groups or individuals who should have the IAP-secured Web App User role for the project.

    The following kinds of principals can have this role:

    • Google Account: user@gmail.com
    • Google Group: admins@googlegroups.com
    • Service account: server@example.gserviceaccount.com
    • Google Workspace domain: example.com

    Make sure to add a Google Account that you have access to.

  6. Select Cloud IAP > IAP-secured Web App User from the Roles drop-down list.
  7. Click Save.

Turning on IAP

  1. On the Identity-Aware Proxy page, under Applications, find the application you want to restrict access to. To turn on IAP for a resource,
  2. In the Turn on IAP window that appears, click Turn On to confirm that you want IAP to secure your resource. After you turn on IAP, it requires login credentials for all connections to your load balancer. Only principals with the IAP-Secured Web App User (roles/iap.httpsResourceAccessor) role on the project will be given access.

gcloud

Before you set up your project and IAP, you need an up-to-date version of the gcloud CLI. For instructions on how to install the gcloud CLI, see Install the gcloud CLI.

  1. To authenticate, use the Google Cloud CLI and run the following command.
    gcloud auth login
  2. Click the URL that appears and sign in.
  3. After you sign in, copy the verification code that appears and paste it in the command line.
  4. Run the following command to specify the project that contains the applications that you want to protect with IAP.
    gcloud config set project PROJECT_ID
  5. To enable IAP, run the following command.
    gcloud iap web enable --resource-type=app-engine --versions=version
  6. Add principals who should have the IAP-secured Web App user role to the project.
    gcloud projects add-iam-policy-binding PROJECT_ID \
           --member=PRINCIPAL_IDENTIFIER \
           --role=roles/iap.httpsResourceAccessor
    • Replace PROJECT_ID with your project ID.
    • Replace PRINCIPAL_IDENTIFIER with the necessary principals. This can be a type of domain, group, serviceAccount, or user. For example, user:myemail@example.com.

After you enable IAP, you can use the gcloud CLI to modify the IAP access policy using the IAM role roles/iap.httpsResourceAccessor. Learn more about managing roles and permissions.

API

  1. Run the following command to prepare a settings.json file.

    cat << EOF > settings.json
    {
    "iap":
      {
        "enabled":true
      }
    }
    EOF
    

  2. Run the following command to enable IAP.

    curl -X PATCH \
    -H "Authorization: Bearer $(gcloud auth print-access-token)" \
    -H "Accept: application/json" \
    -H "Content-Type: application/json" \
    -d @settings.json \
    "https://appengine.googleapis.com/v1/apps/PROJECT_ID?updateMask=iap"
    

After you enable IAP, you can use the Google Cloud CLI to modify the IAP access policy using the IAM role roles/iap.httpsResourceAccessor. Learn more about managing roles and permissions.

Menguji autentikasi pengguna

  1. Setelah peran diberikan, akun utama dapat mengakses aplikasi setelah melakukan autentikasi dengan IAP. Akses URL aplikasi dari Akun Google yang diberi IAP dengan peran IAP-secured Web App User (roles/iap.httpsResourceAccessor).

  2. Gunakan jendela samaran di Chrome untuk mengakses aplikasi, dan lakukan login saat diminta. Pengguna yang diberi peran IAP-secured Web App User dan berhasil diautentikasi dapat mengakses aplikasi. Pengguna yang tidak diberi peran yang diperlukan atau gagal melakukan autentikasi tidak dapat mengakses aplikasi.