34 lines
758 B
Bash
34 lines
758 B
Bash
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#!/bin/bash
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image_info () {
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[[ $1 == "-k" ]] && key=$2 && shift 2
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tag=$(image_name "$@")
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# TODO try using --format to extract keys
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# https://docs.docker.com/engine/reference/commandline/inspect/
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info=$(docker image inspect $tag 2> /dev/null) || info=$(docker image inspect $1 2> /dev/null) || return 1
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if [[ $key ]]; then
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# echo image: $tag, key:$key
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echo $info | jq --arg k "$key" '.[] | .[$k]'
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else
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# quote to preserve newlines
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echo "$info"
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fi
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}
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image_exists () {
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image_info -k RepoTags "$@"
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}
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image_arch () {
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image_info -k Architecture "$@"
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}
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image_tags () {
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image_info -k RepoTags "$@"
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}
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image_id () {
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image_info -k Id "$@" | sed 's/.*\://' | sed 's/"//'
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}
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# if script was executed then call the function
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(return 0 2>/dev/null) || image_info $@
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