Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #18315 from jfrazelle/change-frozen-image-v2
update download-frozen-image.sh to v2 registry
- Loading branch information
Showing
5 changed files
with
141 additions
and
25 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
File renamed without changes.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| #!/bin/bash | ||
| set -e | ||
|
|
||
| # hello-world latest ef872312fe1b 3 months ago 910 B | ||
| # hello-world latest ef872312fe1bbc5e05aae626791a47ee9b032efa8f3bda39cc0be7b56bfe59b9 3 months ago 910 B | ||
|
|
||
| # debian latest f6fab3b798be 10 weeks ago 85.1 MB | ||
| # debian latest f6fab3b798be3174f45aa1eb731f8182705555f89c9026d8c1ef230cbf8301dd 10 weeks ago 85.1 MB | ||
|
|
||
| if ! command -v curl &> /dev/null; then | ||
| echo >&2 'error: "curl" not found!' | ||
| exit 1 | ||
| fi | ||
|
|
||
| usage() { | ||
| echo "usage: $0 dir image[:tag][@digest] ..." | ||
| echo " $0 /tmp/old-hello-world hello-world:latest@sha256:8be990ef2aeb16dbcb9271ddfe2610fa6658d13f6dfb8bc72074cc1ca36966a7" | ||
| [ -z "$1" ] || exit "$1" | ||
| } | ||
|
|
||
| dir="$1" # dir for building tar in | ||
| shift || usage 1 >&2 | ||
|
|
||
| [ $# -gt 0 -a "$dir" ] || usage 2 >&2 | ||
| mkdir -p "$dir" | ||
|
|
||
| # hacky workarounds for Bash 3 support (no associative arrays) | ||
| images=() | ||
| rm -f "$dir"/tags-*.tmp | ||
| # repositories[busybox]='"latest": "...", "ubuntu-14.04": "..."' | ||
|
|
||
| while [ $# -gt 0 ]; do | ||
| imageTag="$1" | ||
| shift | ||
| image="${imageTag%%[:@]*}" | ||
| imageTag="${imageTag#*:}" | ||
| digest="${imageTag##*@}" | ||
| tag="${imageTag%%@*}" | ||
|
|
||
| # add prefix library if passed official image | ||
| if [[ "$image" != *"/"* ]]; then | ||
| image="library/$image" | ||
| fi | ||
|
|
||
| imageFile="${image//\//_}" # "/" can't be in filenames :) | ||
|
|
||
| token="$(curl -sSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:$image:pull" | jq --raw-output .token)" | ||
|
|
||
| manifestJson="$(curl -sSL -H "Authorization: Bearer $token" "https://registry-1.docker.io/v2/$image/manifests/$digest")" | ||
| if [ "${manifestJson:0:1}" != '{' ]; then | ||
| echo >&2 "error: /v2/$image/manifests/$digest returned something unexpected:" | ||
| echo >&2 " $manifestJson" | ||
| exit 1 | ||
| fi | ||
|
|
||
| layersFs=$(echo "$manifestJson" | jq --raw-output '.fsLayers | .[] | .blobSum') | ||
|
|
||
| IFS=$'\n' | ||
| layers=( ${layersFs} ) | ||
| unset IFS | ||
|
|
||
| history=$(echo "$manifestJson" | jq '.history | [.[] | .v1Compatibility]') | ||
| imageId=$(echo "$history" | jq --raw-output .[0] | jq --raw-output .id) | ||
|
|
||
| if [ -s "$dir/tags-$imageFile.tmp" ]; then | ||
| echo -n ', ' >> "$dir/tags-$imageFile.tmp" | ||
| else | ||
| images=( "${images[@]}" "$image" ) | ||
| fi | ||
| echo -n '"'"$tag"'": "'"$imageId"'"' >> "$dir/tags-$imageFile.tmp" | ||
|
|
||
| echo "Downloading '${image}:${tag}@${digest}' (${#layers[@]} layers)..." | ||
| for i in "${!layers[@]}"; do | ||
| imageJson=$(echo "$history" | jq --raw-output .[${i}]) | ||
| imageId=$(echo "$imageJson" | jq --raw-output .id) | ||
| imageLayer=${layers[$i]} | ||
|
|
||
| mkdir -p "$dir/$imageId" | ||
| echo '1.0' > "$dir/$imageId/VERSION" | ||
|
|
||
| echo "$imageJson" > "$dir/$imageId/json" | ||
|
|
||
| # TODO figure out why "-C -" doesn't work here | ||
| # "curl: (33) HTTP server doesn't seem to support byte ranges. Cannot resume." | ||
| # "HTTP/1.1 416 Requested Range Not Satisfiable" | ||
| if [ -f "$dir/$imageId/layer.tar" ]; then | ||
| # TODO hackpatch for no -C support :'( | ||
| echo "skipping existing ${imageId:0:12}" | ||
| continue | ||
| fi | ||
| curl -SL --progress -H "Authorization: Bearer $token" "https://registry-1.docker.io/v2/$image/blobs/$imageLayer" -o "$dir/$imageId/layer.tar" # -C - | ||
| done | ||
| echo | ||
| done | ||
|
|
||
| echo -n '{' > "$dir/repositories" | ||
| firstImage=1 | ||
| for image in "${images[@]}"; do | ||
| imageFile="${image//\//_}" # "/" can't be in filenames :) | ||
| image="${image#library\/}" | ||
|
|
||
| [ "$firstImage" ] || echo -n ',' >> "$dir/repositories" | ||
| firstImage= | ||
| echo -n $'\n\t' >> "$dir/repositories" | ||
| echo -n '"'"$image"'": { '"$(cat "$dir/tags-$imageFile.tmp")"' }' >> "$dir/repositories" | ||
| done | ||
| echo -n $'\n}\n' >> "$dir/repositories" | ||
|
|
||
| rm -f "$dir"/tags-*.tmp | ||
|
|
||
| echo "Download of images into '$dir' complete." | ||
| echo "Use something like the following to load the result into a Docker daemon:" | ||
| echo " tar -cC '$dir' . | docker load" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters