Allow for additional disc_formats #374
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,332 @@ | ||
| #!/usr/bin/env bash | ||
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| function get_image_status() { | ||
| local image_name=$1 | ||
| local image_id | ||
| local image_details | ||
| image_id=$(get_image_id "${image_name}") | ||
| image_details="$(glance image-show "${image_id}")" | ||
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| printf '%s' "${image_details}" | | ||
| grep -w "status" | | ||
| awk -F "|" '{print $3;}' | | ||
| tr -d '[:space:]' | ||
| } | ||
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| function get_image_id() { | ||
| local image_name=$1 | ||
| local image_list | ||
| image_list="$(glance image-list)" | ||
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| printf '%s' "${image_list}" | | ||
| grep -w "${image_name}" | | ||
| awk -F "|" '{print $2;}' | | ||
| tr -d '[:space:]' | ||
| } | ||
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| function get_server_image_disc_format() { | ||
| local image_id=$1 | ||
| local image_details | ||
| image_details="$(glance image-show "${image_id}")" | ||
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| printf '%s' "${image_details}" | | ||
| grep -w "disk_format" | | ||
| awk -F "|" '{print $3;}' | | ||
| tr -d '[:space:]' | ||
| } | ||
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| function image_exists() { | ||
| local image_name=$1 | ||
| local image_id | ||
| image_id=$(get_image_id "${image_name}") | ||
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| if [[ "${image_id}" != "" ]]; then | ||
| echo "true" | ||
| else | ||
| echo "false" | ||
| fi | ||
| } | ||
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| function get_server_uploaded_image_checksum() { | ||
| local image_id=$1 | ||
| local image_details | ||
| image_details="$(glance image-show "${image_id}")" | ||
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| printf '%s' "${image_details}" | | ||
| grep -w "checksum" | | ||
| awk -F "|" '{print $3;}' | | ||
| tr -d '[:space:]' | ||
| } | ||
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| function is_image_downloaded_already() { | ||
| local download_filepath=$1 | ||
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| if [[ -e ${download_filepath} ]]; then | ||
| echo "true" | ||
| else | ||
| echo "false" | ||
| fi | ||
| } | ||
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| function is_uploaded_disc_format_as_expected() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local image_id | ||
| image_id=$(get_image_id "${image_name}") | ||
| server_disc_format=$(get_server_image_disc_format "${image_id}") | ||
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| if [[ "${server_disc_format}" == "${glance_disc_format}" ]]; then | ||
| echo "true" | ||
| else | ||
| echo "false" | ||
| fi | ||
| } | ||
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| function is_image_already_uploaded() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local image_id | ||
| image_id=$(get_image_id "${image_name}") | ||
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| if [[ "${image_id}" == "" ]]; then | ||
| echo "false" | ||
| else | ||
| echo "true" | ||
| fi | ||
| } | ||
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| function wait_for_image_activation() { | ||
| local image_name=$1; | ||
| local wait_time | ||
| local max_wait | ||
| local sleep_time | ||
| local status | ||
| wait_time=0 | ||
| max_wait=300 | ||
| sleep_time=3 | ||
| status="nothing" | ||
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| # Wait until image status is "active" | ||
| while [[ "${status}" != "active" && ${wait_time} -lt ${max_wait} ]]; do | ||
| # allow for image to be ready | ||
| sleep ${sleep_time} | ||
| wait_time=$((wait_time + sleep_time)) | ||
| status=$(get_image_status "${image_name}") | ||
| done | ||
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| echo "${status}" | ||
| } | ||
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| function get_host_uploaded_image_checksum() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local image_url=$3 | ||
| local upload_filepath="/tmp/${image_name}.${glance_disc_format}" | ||
| local checksum | ||
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| if [[ "${glance_disc_format}" == "qcow2" ]]; then | ||
| # Download the checksum of the qcow2 image from Kubenow servers | ||
| curl "${image_url}/${image_name}.md5" \ | ||
| -o "${upload_filepath}.md5" \ | ||
| --connect-timeout 30 \ | ||
| --max-time 30 | ||
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| checksum=$(cut -f1 -d ' ' "${upload_filepath}.md5") | ||
| else | ||
| # Generate the md5 from the local file which is present on the local disc | ||
| checksum=$(md5sum "${upload_filepath}" | awk '{print $1}') | ||
| fi | ||
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| echo "${checksum}" | ||
| } | ||
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| function verify_uploaded_image() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local image_url=$3 | ||
| local image_list | ||
| local image_id | ||
| local image_details | ||
| local server_checksum | ||
| local host_checksum | ||
| image_id=$(get_image_id "${image_name}") | ||
| server_checksum=$(get_server_uploaded_image_checksum "${image_id}") | ||
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| if [[ ${#server_checksum} != 32 ]]; then | ||
| echo "No valid server_checksum field on server, skipping checksum verification step" | ||
| else | ||
| host_checksum=$(get_host_uploaded_image_checksum "${image_name}" "${glance_disc_format}" "${image_url}") | ||
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| if [ "${host_checksum}" != "${server_checksum}" ]; then | ||
| echo >&2 "Server checksum: ${server_checksum}" | ||
| echo >&2 "Expected checksum: ${host_checksum}" | ||
| echo >&2 "The server image checksum does not match expectations" | ||
| echo >&2 "Something might have failed on file transfer." | ||
| echo >&2 "Please delete image ${image_name} from Openstack and try again." | ||
| exit 1 | ||
| else | ||
| echo "Uploaded image checksum is OK" | ||
| fi | ||
| fi | ||
| } | ||
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| function upload_image() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local image_url=$3 | ||
| local upload_filepath="/tmp/${image_name}.${glance_disc_format}" | ||
| local min_disc=5 | ||
| local image_size | ||
| local image_size_number | ||
| image_size=$(du -sh --block-size=G --apparent-size "${upload_filepath}" | awk '{print $1}') | ||
| image_size_number=${image_size::-1} | ||
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| if [[ "${glance_disc_format}" == "raw" ]]; then | ||
| min_disc=${image_size_number}; | ||
| fi | ||
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| # Upload image | ||
| echo "Starting upload of ${image_name}" | ||
| echo -e "\n" | ||
| echo "image source: ${upload_filepath}" | ||
| echo "image name: ${image_name}" | ||
| echo "image format: ${glance_disc_format}" | ||
| echo "image size: ${image_size_number} GB" | ||
| echo -e "\n" | ||
| glance image-create \ | ||
| --file "${upload_filepath}" \ | ||
| --disk-format "${glance_disc_format}" \ | ||
| --min-disk "${min_disc}" \ | ||
| --container-format bare \ | ||
| --name "${image_name}" \ | ||
| --progress | ||
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| echo "Verifying the uploaded image" | ||
| echo -e "\n" | ||
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| post_image_upload_checks "${image_name}" "${glance_disc_format}" "${image_url}" | ||
| } | ||
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| function verify_downloaded_image() { | ||
| local download_filename=$1 | ||
| local download_url=$2 | ||
| local download_filepath="/tmp/${download_filename}" | ||
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| echo "Downloading ${download_url}/${download_filename}.md5 file" | ||
| curl "${download_url}/${download_filename}.md5" \ | ||
| -o "${download_filepath}.md5" \ | ||
| --connect-timeout 30 \ | ||
| --max-time 30 | ||
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| # Verify md5sum of downloaded file | ||
| echo "Checking md5 sum" | ||
| md5result=$( | ||
| cd /tmp || exit; | ||
| md5sum -c "${download_filename}.md5" | ||
| ) | ||
| if [[ "${md5result}" != *": OK"* ]]; then | ||
| echo >&2 "Wrong checksum of downloaded image." | ||
| echo >&2 "Something might have failed on file transfer." | ||
| echo >&2 "Please try again." | ||
| exit 1 | ||
| else | ||
| echo "Checksum of downloaded image OK" | ||
| fi | ||
| } | ||
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| function post_image_upload_checks() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local image_url=$3 | ||
| local is_uploaded_disc_format_as_expected | ||
| local image_id | ||
| image_id=$(get_image_id "${image_name}") | ||
| server_image_disc_format=$(get_server_image_disc_format "${image_id}") | ||
| is_uploaded_disc_format_as_expected=$(is_uploaded_disc_format_as_expected "${image_name}" "${glance_disc_format}") | ||
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| # Verify the server image is in the expected glance_disc_format | ||
| if [[ "${is_uploaded_disc_format_as_expected}" == "false" ]]; then | ||
| echo >&2 "Host image disc format: ${glance_disc_format}" | ||
| echo >&2 "Server image disc format: ${server_image_disc_format}" | ||
| echo >&2 "${image_name} disc format on the server is not as expected" | ||
| echo >&2 "Delete the server image and retry the kn init process" | ||
| exit 1 | ||
| fi | ||
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| # Verify uploaded image checksums | ||
| verify_uploaded_image "${image_name}" "${glance_disc_format}" "${image_url}" | ||
| } | ||
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| function download_image() { | ||
| local download_filename=$1 | ||
| local download_url=$2 | ||
| local download_filepath="/tmp/${download_filename}" | ||
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| echo "Downloading image to local /tmp/" | ||
| echo -e "\n" | ||
| curl "${download_url}/${download_filename}" \ | ||
| -o "${download_filepath}" \ | ||
| --connect-timeout 30 \ | ||
| --max-time 1800 | ||
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| echo "Verifying the md5 checksum of the downloaded image" | ||
| echo -e "\n" | ||
| verify_downloaded_image "${download_filename}" "${download_url}" | ||
| } | ||
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| function maybe_download_image(){ | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local download_url=$3 | ||
| local download_filename="${image_name}.qcow2" | ||
| local download_filepath="/tmp/${image_name}.qcow2" | ||
| local is_image_downloaded_already | ||
| is_image_downloaded_already=$(is_image_downloaded_already "${download_filepath}") | ||
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| if [[ "${is_image_downloaded_already}" == "false" ]]; then | ||
| download_image "${download_filename}" "${download_url}" | ||
| else | ||
| echo "${download_filename} is already downloaded" | ||
| echo "Verifying the downloaded image checksum" | ||
| echo -e "\n" | ||
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| verify_downloaded_image "${download_filename}" "${download_url}" | ||
| fi | ||
| } | ||
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| function maybe_convert_image(){ | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local download_url=$3 | ||
| local download_filename="${image_name}.qcow2" | ||
| local download_filepath="/tmp/${image_name}.qcow2" | ||
| local upload_filepath="/tmp/${image_name}.${glance_disc_format}" | ||
| local qemu_installed | ||
| local is_image_downloaded_already | ||
| is_image_downloaded_already=$(is_image_downloaded_already "${download_filepath}") | ||
| qemu_installed=$(which qemu-img) | ||
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| if [[ ! -e ${upload_filepath} ]]; then | ||
| if [[ "${qemu_installed}" == "" ]]; then | ||
| echo >&2 "qemu-utils package is missing - image cannot be converted" | ||
| echo >&2 "Please ensure that qemu-img is available." | ||
| exit 1 | ||
| else | ||
| if [[ "${is_image_downloaded_already}" == "false" ]]; then | ||
| echo >&2 "No file found at ${download_filepath}" | ||
| echo >&2 "Please ensure image has been downloaded" | ||
| exit 1 | ||
| fi | ||
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| echo "${download_filepath} has not yet been converted to the ${glance_disc_format} format" | ||
| echo "Starting the image conversion from qcow2 to ${glance_disc_format}..." | ||
| echo -e "\n" | ||
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| qemu-img convert -q -f qcow2 -O "${glance_disc_format}" "${download_filepath}" "${upload_filepath}" | ||
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| echo "${image_name}.qcow2 conversion to ${upload_filepath} complete" | ||
| fi | ||
| else | ||
| echo "${upload_filepath} already exists and so does not require conversion" | ||
| fi | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,142 +1,59 @@ | ||
| #!/usr/bin/env bash | ||
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| # Checks and uploads specified Image to user's OpenStack account. | ||
| # | ||
| # 1. Downloads image first from an Amazon S3 storage (using curl and python-glance client) | ||
| # | ||
| # 2. Converts the image to the required format (if needed) | ||
| # | ||
| # 3. Uploads image to openstack tenancy. (using curl and python-glance client) | ||
| # | ||
| # | ||
| # | ||
| # Env vars | ||
| # | ||
| # KN_IMAGE_NAME | ||
| # KN_DISC_FORMAT | ||
|
There was a problem hiding this comment. To avoid confusion with image format on image downloaded change "disk_format" to "glance_disk_format" |
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| # KN_IMAGE_BUCKET_URL | ||
| # | ||
| # Exit immediately if a command exits with a non-zero status | ||
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| set -e | ||
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| # shellcheck disable=SC1091 | ||
| source bin/helpers/openstack.sh | ||
| KN_IMAGE_BUCKET_URL=${KN_IMAGE_BUCKET_URL:-"https://s3.eu-central-1.amazonaws.com/kubenow-eu-central-1"} | ||
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| echo "Started script image-create-openstack" | ||
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| if [ -z "${KN_IMAGE_NAME}" ]; then | ||
| echo >&2 "env KN_IMAGE_NAME must be set for this script to run" | ||
| exit 1 | ||
| fi | ||
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| if [ -z "${KN_DISC_FORMAT}" ]; then | ||
| echo >&2 "env KN_DISC_FORMAT must be set for this script to run" | ||
| exit 1 | ||
| fi | ||
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| function init() { | ||
| local image_name=$1 | ||
| local glance_disc_format=$2 | ||
| local bucket_url=$3 | ||
| local is_image_previously_uploaded | ||
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| # If the image exists, return true, otherwise return false | ||
| is_image_previously_uploaded=$(is_image_already_uploaded "${image_name}" "${glance_disc_format}") | ||
| if [[ "${is_image_previously_uploaded}" == "false" ]]; then | ||
| maybe_download_image "${image_name}" "${glance_disc_format}" "${bucket_url}" | ||
| maybe_convert_image "${image_name}" "${glance_disc_format}" "${bucket_url}" | ||
| upload_image "${image_name}" "${glance_disc_format}" "${bucket_url}" | ||
| else | ||
| echo "${image_name}.${glance_disc_format} is already present - no need to upload" | ||
| fi | ||
| } | ||
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| init "${KN_IMAGE_NAME}" "${KN_DISC_FORMAT}" "${KN_IMAGE_BUCKET_URL}" | ||
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Could you check how much this affects the Docker image size?
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sure.. this is how it reads from
docker image ls