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Shell script to find docker image descendants
#!/bin/bash
parent_short_id=$1
parent_id=`docker inspect --format '{{.Id}}' $1`
get_kids() {
local parent_id=$1
docker inspect --format='ID {{.Id}} PAR {{.Parent}}' $(docker images -a -q) | grep "PAR ${parent_id}" | sed -E "s/ID ([^ ]*) PAR ([^ ]*)/\1/g"
}
print_kids() {
local parent_id=$1
local prefix=$2
local tags=`docker inspect --format='{{.RepoTags}}' ${parent_id}`
echo "${prefix}${parent_id} ${tags}"
local children=`get_kids "${parent_id}"`
for c in $children;
do
print_kids "$c" "$prefix "
done
}
print_kids "$parent_id" ""
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