èæ¯ docker-composeã§railsç°å¢ãæ§ç¯ãããèµ·åããã gemãç¡ãã¨è¨ããã¦ããã®ã§docker-compose run 'ã³ã³ãã' bundle installã®å®è¡ã§è§£æ±ºã ãã©ãªãã§Dockerfileå ã§bundle installãã¦ããã®ã«å度bundle installããªãã¨ãããªããã ããã¨çåã«æã£ãã®ã§èª¿æ»ãã¦ã¿ã¾ããã å ã«çµè« volumeã«å¤ãæ å ±ãä¿åããã¦ãããææ°ã®æ å ±ãvolumeã«ä¸æ¸ãããã¦ãã¾ãã ã¨ã©ã¼åç¾ä¾ æ§ç¯æã®ãã¡ã¤ã«ä¾ FROM ruby:2.6.3 RUN apt-get update -qq && \ apt-get install -y build-essential \ libpq-dev \ postgresql-client &&\ rm -rf /var/lib/apt/lists/* # insta


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