mirror of
https://github.com/netbox-community/netbox-docker.git
synced 2024-11-07 16:44:02 +01:00
83 lines
1.9 KiB
Bash
83 lines
1.9 KiB
Bash
#!/bin/bash
|
|
# Retrieves image configuration from public images in DockerHub
|
|
# Functions from https://gist.github.com/cirocosta/17ea17be7ac11594cb0f290b0a3ac0d1
|
|
# Optimised for our use case
|
|
|
|
get_image_label() {
|
|
local label=$1
|
|
local image=$2
|
|
local tag=$3
|
|
local token
|
|
token=$(_get_token "$image")
|
|
local digest
|
|
digest=$(_get_digest "$image" "$tag" "$token")
|
|
local retval="null"
|
|
if [ "$digest" != "null" ]; then
|
|
retval=$(_get_image_configuration "$image" "$token" "$digest" "$label")
|
|
fi
|
|
echo "$retval"
|
|
}
|
|
|
|
get_image_layers() {
|
|
local image=$1
|
|
local tag=$2
|
|
local token
|
|
token=$(_get_token "$image")
|
|
_get_layers "$image" "$tag" "$token"
|
|
}
|
|
|
|
get_image_last_layer() {
|
|
local image=$1
|
|
local tag=$2
|
|
local token
|
|
token=$(_get_token "$image")
|
|
local layers
|
|
mapfile -t layers < <(_get_layers "$image" "$tag" "$token")
|
|
echo "${layers[-1]}"
|
|
}
|
|
|
|
_get_image_configuration() {
|
|
local image=$1
|
|
local token=$2
|
|
local digest=$3
|
|
local label=$4
|
|
curl \
|
|
--silent \
|
|
--location \
|
|
--header "Authorization: Bearer $token" \
|
|
"https://registry-1.docker.io/v2/$image/blobs/$digest" |
|
|
jq -r ".config.Labels.\"$label\""
|
|
}
|
|
|
|
_get_token() {
|
|
local image=$1
|
|
curl \
|
|
--silent \
|
|
"https://auth.docker.io/token?scope=repository:$image:pull&service=registry.docker.io" |
|
|
jq -r '.token'
|
|
}
|
|
|
|
_get_digest() {
|
|
local image=$1
|
|
local tag=$2
|
|
local token=$3
|
|
curl \
|
|
--silent \
|
|
--header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
|
|
--header "Authorization: Bearer $token" \
|
|
"https://registry-1.docker.io/v2/$image/manifests/$tag" |
|
|
jq -r '.config.digest'
|
|
}
|
|
|
|
_get_layers() {
|
|
local image=$1
|
|
local tag=$2
|
|
local token=$3
|
|
curl \
|
|
--silent \
|
|
--header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
|
|
--header "Authorization: Bearer $token" \
|
|
"https://registry-1.docker.io/v2/$image/manifests/$tag" |
|
|
jq -r '.layers[].digest'
|
|
}
|