${VAR+replacement} \u2192 \u5982\u679c VAR \u5df2\u8bbe\u7f6e，\u5219\u4e3a replacement；\u5426\u5219\u4e3a\u7a7a<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\u63d2\u503c\u4e5f\u53ef\u4ee5\u5d4c\u5957\u4f7f\u7528：<\/p>\n
${VARIABLE:-${FOO}}<\/p>\n
${VARIABLE?$FOO}<\/p>\n
${VARIABLE:-${FOO:-default}}<\/p>\n
Compose \u4e0d\u652f\u6301\u5176\u4ed6\u6269\u5c55\u7684 Shell \u98ce\u683c\u7279\u6027，\u4f8b\u5982 ${VARIABLE\/foo\/bar}\u3002<\/p>\n
\u53ea\u8981\u6784\u6210\u6709\u6548\u7684\u53d8\u91cf\u5b9a\u4e49（\u5b57\u6bcd\u6570\u5b57\u540d\u79f0 [_a-zA-Z][_a-zA-Z0-9]* \u6216\u4ee5 ${ \u5f00\u5934\u7684\u5e26\u62ec\u53f7\u5b57\u7b26\u4e32），Compose \u5c31\u4f1a\u5904\u7406 $ \u7b26\u53f7\u540e\u7684\u4efb\u4f55\u5b57\u7b26\u4e32\u3002\u5728\u5176\u4ed6\u60c5\u51b5\u4e0b，\u5b83\u5c06\u4fdd\u7559\u539f\u6837\u800c\u4e0d\u5c1d\u8bd5\u63d2\u503c\u66ff\u6362\u3002<\/p>\n
\u5f53\u914d\u7f6e\u4e2d\u9700\u8981\u5b57\u9762\u7f8e\u5143\u7b26\u53f7\u65f6，\u53ef\u4ee5\u4f7f\u7528 $$（\u53cc\u7f8e\u5143\u7b26\u53f7）\u3002\u8fd9\u4e5f\u53ef\u4ee5\u9632\u6b62 Compose \u8fdb\u884c\u63d2\u503c\u66ff\u6362，\u56e0\u6b64 $$ \u5141\u8bb8\u60a8\u5f15\u7528\u4e0d\u5e0c\u671b\u88ab Compose \u5904\u7406\u7684\u73af\u5883\u53d8\u91cf\u3002<\/p>\n
web:
\n build: .
\n command: "$$VAR_NOT_INTERPOLATED_BY_COMPOSE"<\/p>\n
\u5982\u679c Compose \u65e0\u6cd5\u89e3\u6790\u4e00\u4e2a\u5f85\u66ff\u6362\u7684\u53d8\u91cf\u4e14\u672a\u5b9a\u4e49\u9ed8\u8ba4\u503c，\u5b83\u4f1a\u663e\u793a\u8b66\u544a\u5e76\u5c06\u8be5\u53d8\u91cf\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n
\u7531\u4e8e Compose \u6587\u4ef6\u4e2d\u7684\u4efb\u4f55\u503c\u90fd\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u66ff\u6362\u8fdb\u884c\u63d2\u503c（\u5305\u62ec\u590d\u6742\u5143\u7d20\u7684\u7d27\u51d1\u5b57\u7b26\u4e32\u8868\u793a\u6cd5），\u63d2\u503c\u64cd\u4f5c\u4f1a\u5728\u6bcf\u4e2a\u6587\u4ef6\u7684\u57fa\u7840\u4e0a，\u5728\u5408\u5e76\u4e4b\u524d\u5e94\u7528\u3002<\/p>\n
\u63d2\u503c\u4ec5\u9002\u7528\u4e8e YAML \u7684\u503c（values），\u800c\u4e0d\u9002\u7528\u4e8e\u952e（keys）\u3002\u5728\u5c11\u6570\u952e\u5b9e\u9645\u4e0a\u662f\u4efb\u610f\u7528\u6237\u5b9a\u4e49\u5b57\u7b26\u4e32\u7684\u573a\u666f\u4e2d（\u4f8b\u5982\u6807\u7b7e\u6216\u73af\u5883\u53d8\u91cf），\u5fc5\u987b\u4f7f\u7528\u7b49\u53f7\u66ff\u4ee3\u8bed\u6cd5\u624d\u80fd\u4f7f\u63d2\u503c\u751f\u6548\u3002\u4f8b\u5982：<\/p>\n
services:
\n foo:
\n labels:
\n "$VAR_NOT_INTERPOLATED_BY_COMPOSE": "BAR"<\/p>\n
services:
\n foo:
\n labels:
\n – "$VAR_INTERPOLATED_BY_COMPOSE=BAR"<\/p>\n
version: '3.8'<\/p>\n
services:
\n web:
\n image: nginx<\/p>\n
# \u274c \u9519\u8bef：\u8bd5\u56fe\u5728\u952e\u4e2d\u4f7f\u7528\u53d8\u91cf（\u65e0\u6548）
\n # ${PREFIX}_LABEL: value # \u8fd9\u4e0d\u4f1a\u5de5\u4f5c<\/p>\n
# \u2705 \u6b63\u786e：\u6807\u7b7e\u4f7f\u7528\u7b49\u53f7\u8bed\u6cd5\u4f7f\u952e\u53ef\u63d2\u503c
\n labels:
\n – "${PREFIX}.version=1.0" # \u952e\u548c\u503c\u90fd\u53ef\u63d2\u503c
\n – "com.${COMPANY:-example}.app=${APP_NAME}" # \u5d4c\u5957\u63d2\u503c
\n – "${ENV}_deployed=${TIMESTAMP}" # \u52a8\u6001\u952e\u540d<\/p>\n
# \u2705 \u73af\u5883\u53d8\u91cf\u540c\u6837\u9002\u7528
\n environment:
\n – "${PREFIX}_DB_HOST=${DB_HOST}" # \u52a8\u6001\u73af\u5883\u53d8\u91cf\u540d
\n – "APP_${ENV_MODE}_CONFIG=${CONFIG_PATH}"
\n – "JAVA_OPTS=${JAVA_OPTS:–Xmx512m}"<\/p>\n
# \u274c \u8fd9\u4e9b\u4e0d\u4f1a\u8fdb\u884c\u952e\u63d2\u503c
\n # ports:
\n # – "${PORT_MAPPING}" # \u5982\u679c\u671f\u671b "8080:80" \u8fd9\u6837\u7684\u5b57\u7b26\u4e32，\u8fd9\u662f\u53ef\u4ee5\u7684
\n # \u4f46\u5982\u679c\u662f "${HOST_PORT}:${CONTAINER_PORT}"，\u4e24\u4e2a\u53d8\u91cf\u90fd\u4f1a\u5728\u503c\u4e2d\u63d2\u503c<\/p>\n
\u951a\u70b9->\u63d2\u503c->\u914d\u7f6e\u5408\u5e76\u548c\u73af\u5883\u53d8\u91cf\u8bbe\u7f6e<\/p>\n","protected":false},"excerpt":{"rendered":"
Compose \u6587\u4ef6\u4e2d\u7684\u503c\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u8bbe\u7f6e，\u5e76\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u63d2\u503c\u66ff\u6362\u3002Compose \u6587\u4ef6\u4f7f\u7528\u7c7b Bash \u8bed\u6cd5 ${VARIABLE}\u3002\u540c\u65f6\u652f\u6301 $VARIABLE \u548c ${VARIABLE} \u4e24\u79cd\u8bed\u6cd5\u3002\u5bf9\u4e8e\u5e26\u5927\u62ec\u53f7\u7684\u8868\u8fbe\u5f0f，\u652f\u6301\u4ee5\u4e0b\u683c\u5f0f：\u76f4\u63a5\u66ff\u6362：${VAR} \u2192 VAR \u7684\u503c\u9ed8\u8ba4\u503c：
\n${VAR:-default} \u2192 \u5982\u679c VAR \u5df2\u8bbe\u7f6e\u4e14\u975e\u7a7a，\u5219\u4e3a VAR \u7684\u503c；\u5426\u5219\u4e3a <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[130,27,43],"topic":[],"class_list":["post-63131","post","type-post","status-publish","format-standard","hentry","category-server","tag-chrome","tag-docker","tag-43"],"yoast_head":"\n
docker-compose\u6587\u4ef6\u5c5e\u6027\uff089\uff09\u63d2\u503c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/63131.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"docker-compose\u6587\u4ef6\u5c5e\u6027\uff089\uff09\u63d2\u503c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Compose \u6587\u4ef6\u4e2d\u7684\u503c\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u8bbe\u7f6e，\u5e76\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u63d2\u503c\u66ff\u6362\u3002Compose \u6587\u4ef6\u4f7f\u7528\u7c7b Bash \u8bed\u6cd5 ${VARIABLE}\u3002\u540c\u65f6\u652f\u6301 $VARIABLE \u548c ${VARIABLE} \u4e24\u79cd\u8bed\u6cd5\u3002\u5bf9\u4e8e\u5e26\u5927\u62ec\u53f7\u7684\u8868\u8fbe\u5f0f，\u652f\u6301\u4ee5\u4e0b\u683c\u5f0f：\u76f4\u63a5\u66ff\u6362：${VAR} \u2192 VAR \u7684\u503c\u9ed8\u8ba4\u503c： ${VAR:-default} \u2192 \u5982\u679c VAR \u5df2\u8bbe\u7f6e\u4e14\u975e\u7a7a，\u5219\u4e3a VAR \u7684\u503c；\u5426\u5219\u4e3a\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/63131.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-21T03:17:25+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/63131.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/63131.html\",\"name\":\"docker-compose\u6587\u4ef6\u5c5e\u6027\uff089\uff09\u63d2\u503c - 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\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/63131.html","og_locale":"zh_CN","og_type":"article","og_title":"docker-compose\u6587\u4ef6\u5c5e\u6027\uff089\uff09\u63d2\u503c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"Compose \u6587\u4ef6\u4e2d\u7684\u503c\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u8bbe\u7f6e，\u5e76\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u63d2\u503c\u66ff\u6362\u3002Compose \u6587\u4ef6\u4f7f\u7528\u7c7b Bash \u8bed\u6cd5 ${VARIABLE}\u3002\u540c\u65f6\u652f\u6301 $VARIABLE \u548c ${VARIABLE} \u4e24\u79cd\u8bed\u6cd5\u3002\u5bf9\u4e8e\u5e26\u5927\u62ec\u53f7\u7684\u8868\u8fbe\u5f0f，\u652f\u6301\u4ee5\u4e0b\u683c\u5f0f：\u76f4\u63a5\u66ff\u6362：${VAR} \u2192 VAR \u7684\u503c\u9ed8\u8ba4\u503c： ${VAR:-default} \u2192 \u5982\u679c VAR \u5df2\u8bbe\u7f6e\u4e14\u975e\u7a7a，\u5219\u4e3a VAR \u7684\u503c；\u5426\u5219\u4e3a","og_url":"https:\/\/www.wsisp.com\/helps\/63131.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-01-21T03:17:25+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/63131.html","url":"https:\/\/www.wsisp.com\/helps\/63131.html","name":"docker-compose\u6587\u4ef6\u5c5e\u6027\uff089\uff09\u63d2\u503c - 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