如何使用HTTP API v2获取清单？

Question

REPO="https://hub.docker.com/v2"

我可以得到代币，列出（我的）回购，并列出他们的图像和标签。

curl --silent \
--header "Authorization: JWT ${TOKEN}" \
${REPO}/repositories/${USERNAME}/

curl --silent \
--header "Authorization: JWT ${TOKEN}" \
${REPO}/repositories/${USERNAME}/${IMAGE}/tags/

我想“获取清单”，但我很难让它工作:https://docs.docker.com/registry/spec/api/#manifest：

curl --silent \
--header "Host: hub.docker.com" \
--header "Authorization: JWT ${TOKEN}" \
${REPO}/repositories/${USERNAME}/${IMAGE}/manifests/

curl --silent \
--header "Host: hub.docker.com" \
--header "Authorization: JWT ${TOKEN}" \
${REPO}/${USERNAME}/${IMAGE}/manifests/

curl --silent \
--header "Host: hub.docker.com" \
--header "Authorization: JWT ${TOKEN}" \
${REPO}/${USERNAME}/${IMAGE}/manifests/${TAG}

我尝试过没有host头。具有host标头的各种值。但是，我显然错过了什么。我尝试了对工作endpoint的模式匹配，但没有乐趣：

curl --silent \
--header "Authorization: JWT ${TOKEN}" \
${REPO}/repositories/${USERNAME}/${IMAGE}/manifests/

REPO="https://gcr.io/v2/"

一时兴起，我尝试了“Get manifest”对GCR的攻击，请求奏效了：

curl --silent \
--request GET \
--user _token:$(gcloud auth print-access-token) \
${REPO}/${PROJECT}/${IMAGE}/manifests/${TAG}

Answer 1

所有的*.docker.comio子域都很混乱！
我发现registry.hub.docker.com和index.docker.io是最可靠的。

您可以从那里轻松地查询标记，但对于清单，您需要首先获得一个令牌进行提取：

REGISTRY=https://index.docker.io/v2
#REGISTRY="https://registry.hub.docker.com/v2"
#REGISTRY="https://registry.docker.io/v2"
#REGISTRY="https://registry-1.docker.io/v2"
#REGISTRY="https://hub.docker.com/v2"

REPO=library
IMAGE=debian
# Could also be a repo digest
TAG=latest

# Query tags
curl "$REGISTRY/repositories/$REPO/$IMAGE/tags/"

# Query manifest
curl -iL "$REGISTRY/$REPO/$IMAGE/manifests/$TAG"
# HTTP/1.1 401 Unauthorized
# Www-Authenticate: Bearer realm="https://auth.docker.io/token",service="registry.docker.io",scope="repository:library/debian:pull"

TOKEN=$(curl -sSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:$REPO/$IMAGE:pull" \
  | jq --raw-output .token)
curl -LH "Authorization: Bearer ${TOKEN}" "$REGISTRY/$REPO/$IMAGE/manifests/$TAG"

# Some repos seem to return V1 Schemas by default

REPO=nginxinc
IMAGE=nginx-unprivileged 
TAG=1.17.2

curl -LH "Authorization: Bearer $(curl -sSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:$REPO/$IMAGE:pull" | jq --raw-output .token)" \
 "$REGISTRY/$REPO/$IMAGE/manifests/$TAG"

# Solution: Set the Accept Header for V2

curl -LH "Authorization: Bearer $(curl -sSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:$REPO/$IMAGE:pull" | jq --raw-output .token)" \
  -H "Accept:application/vnd.docker.distribution.manifest.v2+json" \
 "$REGISTRY/$REPO/$IMAGE/manifests/$TAG"

见

null