279 lines
12 KiB
Bash
Executable file
279 lines
12 KiB
Bash
Executable file
#!/usr/bin/env nix-shell
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#! nix-shell -i bash -p qemu ec2_ami_tools jq ec2_api_tools awscli
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# To start with do: nix-shell -p awscli --run "aws configure"
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set -o pipefail
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#set -x
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stateDir=${TMPDIR:-/tmp}/ec2-image
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echo "keeping state in $stateDir"
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mkdir -p $stateDir
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version=$(nix-instantiate --eval --strict '<nixpkgs>' -A lib.nixpkgsVersion | sed s/'"'//g)
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major=${version:0:5}
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echo "NixOS version is $version ($major)"
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rm -f ec2-amis.nix
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types="hvm pv"
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stores="ebs s3"
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regions="eu-west-1 eu-central-1 us-east-1 us-west-1 us-west-2 ap-southeast-1 ap-southeast-2 ap-northeast-1 ap-northeast-2 sa-east-1 ap-south-1"
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for type in $types; do
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link=$stateDir/$type
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imageFile=$link/nixos.qcow2
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system=x86_64-linux
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arch=x86_64
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# Build the image.
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if ! [ -L $link ]; then
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if [ $type = pv ]; then hvmFlag=false; else hvmFlag=true; fi
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echo "building image type '$type'..."
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nix-build -o $link \
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'<nixpkgs/nixos>' \
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-A config.system.build.amazonImage \
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--arg configuration "{ imports = [ <nixpkgs/nixos/maintainers/scripts/ec2/amazon-image.nix> ]; ec2.hvm = $hvmFlag; }"
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fi
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for store in $stores; do
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bucket=nixos-amis
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bucketDir="$version-$type-$store"
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prevAmi=
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prevRegion=
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for region in $regions; do
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name=nixos-$version-$arch-$type-$store
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description="NixOS $system $version ($type-$store)"
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amiFile=$stateDir/$region.$type.$store.ami-id
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if ! [ -e $amiFile ]; then
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echo "doing $name in $region..."
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if [ -n "$prevAmi" ]; then
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ami=$(aws ec2 copy-image \
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--region "$region" \
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--source-region "$prevRegion" --source-image-id "$prevAmi" \
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--name "$name" --description "$description" | json -q .ImageId)
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if [ "$ami" = null ]; then break; fi
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else
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if [ $store = s3 ]; then
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# Bundle the image.
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imageDir=$stateDir/$type-bundled
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# Convert the image to raw format.
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rawFile=$stateDir/$type.raw
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if ! [ -e $rawFile ]; then
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qemu-img convert -f qcow2 -O raw $imageFile $rawFile.tmp
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mv $rawFile.tmp $rawFile
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fi
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if ! [ -d $imageDir ]; then
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rm -rf $imageDir.tmp
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mkdir -p $imageDir.tmp
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ec2-bundle-image \
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-d $imageDir.tmp \
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-i $rawFile --arch $arch \
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--user "$AWS_ACCOUNT" -c "$EC2_CERT" -k "$EC2_PRIVATE_KEY"
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mv $imageDir.tmp $imageDir
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fi
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# Upload the bundle to S3.
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if ! [ -e $imageDir/uploaded ]; then
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echo "uploading bundle to S3..."
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ec2-upload-bundle \
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-m $imageDir/$type.raw.manifest.xml \
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-b "$bucket/$bucketDir" \
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-a "$AWS_ACCESS_KEY_ID" -s "$AWS_SECRET_ACCESS_KEY" \
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--location EU
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touch $imageDir/uploaded
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fi
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extraFlags="--image-location $bucket/$bucketDir/$type.raw.manifest.xml"
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else
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# Convert the image to vhd format so we don't have
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# to upload a huge raw image.
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vhdFile=$stateDir/$type.vhd
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if ! [ -e $vhdFile ]; then
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qemu-img convert -f qcow2 -O vpc $imageFile $vhdFile.tmp
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mv $vhdFile.tmp $vhdFile
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fi
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vhdFileLogicalBytes="$(qemu-img info "$vhdFile" | grep ^virtual\ size: | cut -f 2 -d \( | cut -f 1 -d \ )"
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vhdFileLogicalGigaBytes=$(((vhdFileLogicalBytes-1)/1024/1024/1024+1)) # Round to the next GB
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echo "Disk size is $vhdFileLogicalBytes bytes. Will be registered as $vhdFileLogicalGigaBytes GB."
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taskId=$(cat $stateDir/$region.$type.task-id 2> /dev/null || true)
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volId=$(cat $stateDir/$region.$type.vol-id 2> /dev/null || true)
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snapId=$(cat $stateDir/$region.$type.snap-id 2> /dev/null || true)
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# Import the VHD file.
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if [ -z "$snapId" -a -z "$volId" -a -z "$taskId" ]; then
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echo "importing $vhdFile..."
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taskId=$(ec2-import-volume $vhdFile --no-upload -f vhd \
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-O "$AWS_ACCESS_KEY_ID" -W "$AWS_SECRET_ACCESS_KEY" \
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-o "$AWS_ACCESS_KEY_ID" -w "$AWS_SECRET_ACCESS_KEY" \
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--region "$region" -z "${region}a" \
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--bucket "$bucket" --prefix "$bucketDir/" \
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| tee /dev/stderr \
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| sed 's/.*\(import-vol-[0-9a-z]\+\).*/\1/ ; t ; d')
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echo -n "$taskId" > $stateDir/$region.$type.task-id
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fi
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if [ -z "$snapId" -a -z "$volId" ]; then
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ec2-resume-import $vhdFile -t "$taskId" --region "$region" \
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-O "$AWS_ACCESS_KEY_ID" -W "$AWS_SECRET_ACCESS_KEY" \
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-o "$AWS_ACCESS_KEY_ID" -w "$AWS_SECRET_ACCESS_KEY"
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fi
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# Wait for the volume creation to finish.
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if [ -z "$snapId" -a -z "$volId" ]; then
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echo "waiting for import to finish..."
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while true; do
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volId=$(aws ec2 describe-conversion-tasks --conversion-task-ids "$taskId" --region "$region" | jq -r .ConversionTasks[0].ImportVolume.Volume.Id)
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if [ "$volId" != null ]; then break; fi
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sleep 10
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done
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echo -n "$volId" > $stateDir/$region.$type.vol-id
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fi
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# Delete the import task.
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if [ -n "$volId" -a -n "$taskId" ]; then
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echo "removing import task..."
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ec2-delete-disk-image -t "$taskId" --region "$region" \
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-O "$AWS_ACCESS_KEY_ID" -W "$AWS_SECRET_ACCESS_KEY" \
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-o "$AWS_ACCESS_KEY_ID" -w "$AWS_SECRET_ACCESS_KEY" || true
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rm -f $stateDir/$region.$type.task-id
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fi
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# Create a snapshot.
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if [ -z "$snapId" ]; then
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echo "creating snapshot..."
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snapId=$(aws ec2 create-snapshot --volume-id "$volId" --region "$region" --description "$description" | jq -r .SnapshotId)
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if [ "$snapId" = null ]; then exit 1; fi
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echo -n "$snapId" > $stateDir/$region.$type.snap-id
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fi
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# Wait for the snapshot to finish.
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echo "waiting for snapshot to finish..."
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while true; do
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status=$(aws ec2 describe-snapshots --snapshot-ids "$snapId" --region "$region" | jq -r .Snapshots[0].State)
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if [ "$status" = completed ]; then break; fi
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sleep 10
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done
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# Delete the volume.
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if [ -n "$volId" ]; then
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echo "deleting volume..."
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aws ec2 delete-volume --volume-id "$volId" --region "$region" || true
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rm -f $stateDir/$region.$type.vol-id
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fi
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blockDeviceMappings="DeviceName=/dev/sda1,Ebs={SnapshotId=$snapId,VolumeSize=$vhdFileLogicalGigaBytes,DeleteOnTermination=true,VolumeType=gp2}"
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extraFlags=""
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if [ $type = pv ]; then
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extraFlags+=" --root-device-name /dev/sda1"
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else
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extraFlags+=" --root-device-name /dev/sda1"
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extraFlags+=" --sriov-net-support simple"
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extraFlags+=" --ena-support"
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fi
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blockDeviceMappings+=" DeviceName=/dev/sdb,VirtualName=ephemeral0"
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blockDeviceMappings+=" DeviceName=/dev/sdc,VirtualName=ephemeral1"
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blockDeviceMappings+=" DeviceName=/dev/sdd,VirtualName=ephemeral2"
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blockDeviceMappings+=" DeviceName=/dev/sde,VirtualName=ephemeral3"
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fi
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if [ $type = hvm ]; then
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extraFlags+=" --sriov-net-support simple"
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extraFlags+=" --ena-support"
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fi
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# Register the AMI.
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if [ $type = pv ]; then
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kernel=$(aws ec2 describe-images --owner amazon --filters "Name=name,Values=pv-grub-hd0_1.04-$arch.gz" | jq -r .Images[0].ImageId)
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if [ "$kernel" = null ]; then break; fi
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echo "using PV-GRUB kernel $kernel"
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extraFlags+=" --virtualization-type paravirtual --kernel $kernel"
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else
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extraFlags+=" --virtualization-type hvm"
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fi
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ami=$(aws ec2 register-image \
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--name "$name" \
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--description "$description" \
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--region "$region" \
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--architecture "$arch" \
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--block-device-mappings $blockDeviceMappings \
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$extraFlags | jq -r .ImageId)
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if [ "$ami" = null ]; then break; fi
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fi
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echo -n "$ami" > $amiFile
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echo "created AMI $ami of type '$type' in $region..."
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else
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ami=$(cat $amiFile)
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fi
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echo "region = $region, type = $type, store = $store, ami = $ami"
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if [ -z "$prevAmi" ]; then
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prevAmi="$ami"
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prevRegion="$region"
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fi
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done
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done
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done
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for type in $types; do
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link=$stateDir/$type
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system=x86_64-linux
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arch=x86_64
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for store in $stores; do
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for region in $regions; do
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name=nixos-$version-$arch-$type-$store
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amiFile=$stateDir/$region.$type.$store.ami-id
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ami=$(cat $amiFile)
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echo "region = $region, type = $type, store = $store, ami = $ami"
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echo -n "waiting for AMI..."
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while true; do
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status=$(aws ec2 describe-images --image-ids "$ami" --region "$region" | jq -r .Images[0].State)
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if [ "$status" = available ]; then break; fi
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sleep 10
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echo -n '.'
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done
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echo
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# Make the image public.
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aws ec2 modify-image-attribute \
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--image-id "$ami" --region "$region" --launch-permission 'Add={Group=all}'
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echo " \"$major\".$region.$type-$store = \"$ami\";" >> ec2-amis.nix
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done
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done
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done
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