{"blog_url":"https://www.hanachiru-blog.com/","author_url":"https://blog.hatena.ne.jp/hanaaaaaachiru/","description":"\u306f\u3058\u3081\u306b \u4ee5\u4e0b\u306e\u69cb\u6210\u306e\u969b\u306bsample.txt\u3092COPY\u3057\u305f\u3044\u3068\u3044\u3046\u30e2\u30c1\u30d9\u304c\u3042\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u5358\u7d14\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3082\u52d5\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002 parent \u251c\u2500\u2500 child1 \u2502 \u2514\u2500\u2500 Dockerfile \u2514\u2500\u2500 child2 \u2514\u2500\u2500 sample.txt # Dockerfile COPY ../child2/sample.txt ./sample.txt# docker build\u3092\u884c\u3046 $pwd \u2026/parent/child1 $ docker build . ERROR: failed to solve: failed to compute cache key: fail\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.hanachiru-blog.com%2Fentry%2F2025%2F05%2F26%2F120000\" title=\"\u3010Docker\u3011Dockerfile\u3088\u308a\u3082\u4e0a\u4f4d\u968e\u5c64\u306b\u542b\u307e\u308c\u308b\u30d5\u30a1\u30a4\u30eb\u3092COPY\u3057\u305f\u3044\u3068\u304d\u306e\u5bfe\u51e6\u6cd5 - \u306f\u306a\u3061\u308b\u306e\u30de\u30a4\u30ce\u30fc\u30c8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"hanaaaaaachiru","provider_name":"Hatena Blog","image_url":null,"height":"190","title":"\u3010Docker\u3011Dockerfile\u3088\u308a\u3082\u4e0a\u4f4d\u968e\u5c64\u306b\u542b\u307e\u308c\u308b\u30d5\u30a1\u30a4\u30eb\u3092COPY\u3057\u305f\u3044\u3068\u304d\u306e\u5bfe\u51e6\u6cd5","published":"2025-05-26 12:00:00","version":"1.0","type":"rich","categories":["Docker"],"url":"https://www.hanachiru-blog.com/entry/2025/05/26/120000","width":"100%","provider_url":"https://hatena.blog","blog_title":"\u306f\u306a\u3061\u308b\u306e\u30de\u30a4\u30ce\u30fc\u30c8"}