Add AMI replication helper script

packer/Cloud-Neutra-VMs/packer/scripts/common/ami-replicate.sh

@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+usage() {
+  cat <<USAGE
+Usage: $0 <AMI_ID> <EDITION> <UBUNTU_VERSION> <CPU_ARCH> <BASE_REGION> "<TARGET_REGIONS>" <PROJECT_TAG>
+
+Example:
+  $0 ami-1234567890 base 2204 amd64 ap-northeast-1 "ap-northeast-1 ap-east-1" Cloud-Neutra
+USAGE
+}
+
+if [ "$#" -ne 7 ]; then
+  echo "[ami-replicate] ERROR: Invalid arguments" >&2
+  usage
+  exit 1
+fi
+
+AMI_ID="$1"
+EDITION="$2"
+UBUNTU_VERSION="$3"
+CPU_ARCH="$4"
+BASE_REGION="$5"
+TARGET_REGIONS_STR="$6"
+PROJECT_TAG="$7"
+
+if ! command -v aws >/dev/null 2>&1; then
+  echo "[ami-replicate] ERROR: aws CLI is required." >&2
+  exit 1
+fi
+
+if [ -z "$TARGET_REGIONS_STR" ]; then
+  echo "[ami-replicate] ERROR: TARGET_REGIONS cannot be empty." >&2
+  exit 1
+fi
+
+# Normalize target regions into an array
+IFS=' ' read -r -a TARGET_REGIONS <<< "$TARGET_REGIONS_STR"
+
+if [ "${#TARGET_REGIONS[@]}" -eq 0 ]; then
+  echo "[ami-replicate] ERROR: No target regions provided." >&2
+  exit 1
+fi
+
+# Fetch AMI metadata from base region
+read -r IMAGE_NAME IMAGE_DESC <<< "$(aws ec2 describe-images \
+  --region "$BASE_REGION" \
+  --image-ids "$AMI_ID" \
+  --query 'Images[0].[Name,Description]' \
+  --output text)"
+
+if [ -z "$IMAGE_NAME" ] || [ "$IMAGE_NAME" = "None" ]; then
+  echo "[ami-replicate] ERROR: Unable to resolve AMI name for $AMI_ID in $BASE_REGION" >&2
+  exit 1
+fi
+
+if [ -z "$IMAGE_DESC" ] || [ "$IMAGE_DESC" = "None" ]; then
+  IMAGE_DESC="Cloud-Neutra ${EDITION} image Ubuntu ${UBUNTU_VERSION} ${CPU_ARCH}"
+fi
+
+TAG_SET=(
+  Key=Name,Value="$IMAGE_NAME"
+  Key=Project,Value="$PROJECT_TAG"
+  Key=Edition,Value="$EDITION"
+  Key=UbuntuVersion,Value="$UBUNTU_VERSION"
+  Key=Architecture,Value="$CPU_ARCH"
+  Key=Role,Value=Golden-Image
+  Key=SourceRegion,Value="$BASE_REGION"
+)
+
+for REGION in "${TARGET_REGIONS[@]}"; do
+  if [ "$REGION" = "$BASE_REGION" ]; then
+    echo "[ami-replicate] Skip base region $BASE_REGION"
+    continue
+  fi
+
+  echo "[ami-replicate] Replicating $AMI_ID ($IMAGE_NAME) to $REGION ..."
+
+  NEW_AMI_ID=$(aws ec2 copy-image \
+    --region "$REGION" \
+    --source-region "$BASE_REGION" \
+    --source-image-id "$AMI_ID" \
+    --name "$IMAGE_NAME" \
+    --description "$IMAGE_DESC" \
+    --query 'ImageId' \
+    --output text)
+
+  echo "[ami-replicate] Waiting for AMI $NEW_AMI_ID in $REGION to become available ..."
+  aws ec2 wait image-available --region "$REGION" --image-ids "$NEW_AMI_ID"
+
+  echo "[ami-replicate] Tagging AMI $NEW_AMI_ID in $REGION"
+  aws ec2 create-tags --region "$REGION" --resources "$NEW_AMI_ID" --tags "${TAG_SET[@]}"
+
+  SNAPSHOT_IDS=$(aws ec2 describe-images \
+    --region "$REGION" \
+    --image-ids "$NEW_AMI_ID" \
+    --query 'Images[0].BlockDeviceMappings[].Ebs.SnapshotId' \
+    --output text)
+
+  if [ -n "$SNAPSHOT_IDS" ]; then
+    for SNAP_ID in $SNAPSHOT_IDS; do
+      echo "[ami-replicate] Tagging snapshot $SNAP_ID in $REGION"
+      aws ec2 create-tags --region "$REGION" --resources "$SNAP_ID" --tags "${TAG_SET[@]}"
+    done
+  fi
+
+  echo "[ami-replicate] Completed replication to $REGION (AMI: $NEW_AMI_ID)"
+done
+
+echo "[ami-replicate] Replication process finished."