From a00629af7adcc8d1cf91821293c1a95d18f29cb3 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Fri, 20 Jun 2025 13:13:46 +0000
Subject: [PATCH] fix: Ensure multi-platform builds with Docker Buildx

This commit updates the GitHub Actions workflows to correctly set up
Docker Buildx for multi-platform (amd64, arm64) image builds.

Previously, the workflows were missing the `docker/setup-buildx-action`
step, which led to errors when attempting multi-platform builds as the
default Docker driver does not support this.

The following changes were made:
1.  **Added `docker/setup-buildx-action@v3`:**
    - This step is now included in both the CI (`.github/workflows/ci.yaml`) and Release (`.github/workflows/release.yml`) workflows before the QEMU setup and build/push actions.

2.  **Dockerfile (`exporter/Dockerfile`):**
    - Remains as per the previous commit, using `TARGETARCH` to correctly copy architecture-specific libraries. This part was already correct for multi-arch builds.

3.  **Helm Chart:**
    - No changes were required for the Helm chart.

This ensures that the CI/CD pipeline can successfully build and push
Docker images for both `linux/amd64` and `linux/arm64` architectures.
---
 .github/workflows/ci.yaml     | 3 +++
 .github/workflows/release.yml | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 5282efb..38251e6 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -31,6 +31,9 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v3
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9f80aac..f5000ef 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -36,6 +36,9 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v3
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2