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Merge pull request #102173 from grahamc/create-amis

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create-amis.sh: fixup shellcheck issues, improve error logging, and add configurable service names
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Graham Christensen 2020-10-30 16:13:18 -04:00 committed by GitHub
commit c06b97175b
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1 changed files with 31 additions and 23 deletions
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54
nixos/maintainers/scripts/ec2/create-amis.sh
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@ -1,13 +1,15 @@
#!/usr/bin/env nix-shell
#!nix-shell -p awscli -p jq -p qemu -i bash
# shellcheck shell=bash
# Uploads and registers NixOS images built from the
# <nixos/release.nix> amazonImage attribute. Images are uploaded and
# registered via a home region, and then copied to other regions.
# The home region requires an s3 bucket, and a "vmimport" IAM role
# with access to the S3 bucket. Configuration of the vmimport role is
# documented in
# The home region requires an s3 bucket, and an IAM role named "vmimport"
# (by default) with access to the S3 bucket. The name can be
# configured with the "service_role_name" variable. Configuration of the
# vmimport role is documented in
# https://docs.aws.amazon.com/vm-import/latest/userguide/vmimport-image-import.html
# set -x
@ -17,6 +19,7 @@ set -euo pipefail
state_dir=$HOME/amis/ec2-images
home_region=eu-west-1
bucket=nixos-amis
service_role_name=vmimport
regions=(eu-west-1 eu-west-2 eu-west-3 eu-central-1 eu-north-1
us-east-1 us-east-2 us-west-1 us-west-2
@ -64,7 +67,7 @@ image_logical_bytes=$(read_image_info .logical_bytes)
# Derived attributes
image_logical_gigabytes=$((($image_logical_bytes-1)/1024/1024/1024+1)) # Round to the next GB
image_logical_gigabytes=$(((image_logical_bytes-1)/1024/1024/1024+1)) # Round to the next GB
case "$image_system" in
aarch64-linux)
@ -100,7 +103,7 @@ write_state() {
local type=$2
local val=$3
mkdir -p $state_dir
mkdir -p "$state_dir"
echo "$val" > "$state_dir/$state_key.$type"
}
@ -110,8 +113,8 @@ wait_for_import() {
local state snapshot_id
log "Waiting for import task $task_id to be completed"
while true; do
read state progress snapshot_id < <(
aws ec2 describe-import-snapshot-tasks --region $region --import-task-ids "$task_id" | \
read -r state progress snapshot_id < <(
aws ec2 describe-import-snapshot-tasks --region "$region" --import-task-ids "$task_id" | \
jq -r '.ImportSnapshotTasks[].SnapshotTaskDetail | "\(.Status) \(.Progress) \(.SnapshotId)"'
)
log " ... state=$state progress=$progress snapshot_id=$snapshot_id"
@ -125,6 +128,8 @@ wait_for_import() {
;;
*)
log "Unexpected snapshot import state: '${state}'"
log "Full response: "
aws ec2 describe-import-snapshot-tasks --region "$region" --import-task-ids "$task_id" >&2
exit 1
;;
esac
@ -138,8 +143,8 @@ wait_for_image() {
log "Waiting for image $ami_id to be available"
while true; do
read state < <(
aws ec2 describe-images --image-ids "$ami_id" --region $region | \
read -r state < <(
aws ec2 describe-images --image-ids "$ami_id" --region "$region" | \
jq -r ".Images[].State"
)
log " ... state=$state"
@ -163,7 +168,7 @@ make_image_public() {
local region=$1
local ami_id=$2
wait_for_image $region "$ami_id"
wait_for_image "$region" "$ami_id"
log "Making image $ami_id public"
@ -177,27 +182,30 @@ upload_image() {
local aws_path=${image_file#/}
local state_key="$region.$image_label.$image_system"
local task_id=$(read_state "$state_key" task_id)
local snapshot_id=$(read_state "$state_key" snapshot_id)
local ami_id=$(read_state "$state_key" ami_id)
local task_id
task_id=$(read_state "$state_key" task_id)
local snapshot_id
snapshot_id=$(read_state "$state_key" snapshot_id)
local ami_id
ami_id=$(read_state "$state_key" ami_id)
if [ -z "$task_id" ]; then
log "Checking for image on S3"
if ! aws s3 ls --region "$region" "s3://${bucket}/${aws_path}" >&2; then
log "Image missing from aws, uploading"
aws s3 cp --region $region "$image_file" "s3://${bucket}/${aws_path}" >&2
aws s3 cp --region "$region" "$image_file" "s3://${bucket}/${aws_path}" >&2
fi
log "Importing image from S3 path s3://$bucket/$aws_path"
task_id=$(aws ec2 import-snapshot --disk-container "{
task_id=$(aws ec2 import-snapshot --role-name "$service_role_name" --disk-container "{
\"Description\": \"nixos-image-${image_label}-${image_system}\",
\"Format\": \"vhd\",
\"UserBucket\": {
\"S3Bucket\": \"$bucket\",
\"S3Key\": \"$aws_path\"
}
}" --region $region | jq -r '.ImportTaskId')
}" --region "$region" | jq -r '.ImportTaskId')
write_state "$state_key" task_id "$task_id"
fi
@ -221,16 +229,16 @@ upload_image() {
--virtualization-type hvm
)
block_device_mappings+=(DeviceName=/dev/sdb,VirtualName=ephemeral0)
block_device_mappings+=(DeviceName=/dev/sdc,VirtualName=ephemeral1)
block_device_mappings+=(DeviceName=/dev/sdd,VirtualName=ephemeral2)
block_device_mappings+=(DeviceName=/dev/sde,VirtualName=ephemeral3)
block_device_mappings+=("DeviceName=/dev/sdb,VirtualName=ephemeral0")
block_device_mappings+=("DeviceName=/dev/sdc,VirtualName=ephemeral1")
block_device_mappings+=("DeviceName=/dev/sdd,VirtualName=ephemeral2")
block_device_mappings+=("DeviceName=/dev/sde,VirtualName=ephemeral3")
ami_id=$(
aws ec2 register-image \
--name "$image_name" \
--description "$image_description" \
--region $region \
--region "$region" \
--architecture $amazon_arch \
--block-device-mappings "${block_device_mappings[@]}" \
"${extra_flags[@]}" \
@ -240,7 +248,7 @@ upload_image() {
write_state "$state_key" ami_id "$ami_id"
fi
make_image_public $region "$ami_id"
make_image_public "$region" "$ami_id"
echo "$ami_id"
}
@ -268,7 +276,7 @@ copy_to_region() {
write_state "$state_key" ami_id "$ami_id"
fi
make_image_public $region "$ami_id"
make_image_public "$region" "$ami_id"
echo "$ami_id"
}