8e34f46bad
This checks if the source materials (python image, Netbox commit, netbox-docker commit) have changed since the last build. This check is done by comparing the digest and commit ids from the previous image with the given tag to the current values taken from the Git and Docker repositories. The checks are only performed for builds by the automated builds on Github.
78 lines
1.8 KiB
Bash
78 lines
1.8 KiB
Bash
#!/bin/bash
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# Retrieves image configuration from public images in DockerHub
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# Functions from https://gist.github.com/cirocosta/17ea17be7ac11594cb0f290b0a3ac0d1
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# Optimised for our use case
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get_image_label() {
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local label=$1
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local image=$2
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local tag=$3
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local token=$(_get_token $image)
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local digest=$(_get_digest $image $tag $token)
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local retval="null"
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if [ $digest != "null" ]; then
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retval=$(_get_image_configuration $image $token $digest $label)
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fi
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echo $retval
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}
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get_image_layers() {
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local image=$1
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local tag=$2
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local token=$(_get_token $image)
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_get_layers $image $tag $token
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}
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get_image_last_layer() {
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local image=$1
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local tag=$2
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local token=$(_get_token $image)
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local layers=($(_get_layers $image $tag $token))
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echo ${layers[-1]}
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}
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_get_image_configuration() {
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local image=$1
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local token=$2
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local digest=$3
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local label=$4
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curl \
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--silent \
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--location \
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--header "Authorization: Bearer $token" \
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"https://registry-1.docker.io/v2/$image/blobs/$digest" \
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| jq -r ".config.Labels.\"$label\""
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}
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_get_token() {
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local image=$1
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curl \
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--silent \
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"https://auth.docker.io/token?scope=repository:$image:pull&service=registry.docker.io" \
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| jq -r '.token'
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}
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_get_digest() {
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local image=$1
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local tag=$2
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local token=$3
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curl \
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--silent \
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--header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
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--header "Authorization: Bearer $token" \
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"https://registry-1.docker.io/v2/$image/manifests/$tag" \
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| jq -r '.config.digest'
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}
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_get_layers() {
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local image=$1
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local tag=$2
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local token=$3
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curl \
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--silent \
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--header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
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--header "Authorization: Bearer $token" \
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"https://registry-1.docker.io/v2/$image/manifests/$tag" \
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| jq -r '.layers[].digest'
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}
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