pablocattaneo · November 30, 2022 14:02
diff --git a/how_to_create_a_custom_images b/how_to_create_a_custom_images
 # create a file and name it Dockerfile

 FROM node:lts #baseimage

 WORKDIR /app #The WORKDIR instruction sets the working directory for any RUN, CMD, ENTRYPOINT, COPY and ADD instructions that follow it in the Dockerfile.

 COPY . /app #The COPY instruction copies new files or directories from <src> and adds them to the filesystem of the container at the path <dest>.

 RUN yarn global add gatsby-cli #The RUN instruction will execute any commands in a new layer on top of the current image and commit the results. The resulting committed image will be used for the next step in the Dockerfile.
 RUN yarn install

 EXPOSE 80

 CMD ["yarn", "develop"] # There can only be one CMD instruction in a Dockerfile. If you list more than one CMD then only the last CMD will take effect. The main purpose of a CMD is to provide defaults for an executing container. These defaults can include an executable, or they can omit the executable, in which case you must specify an ENTRYPOINT instruction as well.
	# create a file and name it Dockerfile

	FROM node:lts #baseimage

	WORKDIR /app #The WORKDIR instruction sets the working directory for any RUN, CMD, ENTRYPOINT, COPY and ADD instructions that follow it in the Dockerfile.

	COPY . /app #The COPY instruction copies new files or directories from <src> and adds them to the filesystem of the container at the path <dest>.

	RUN yarn global add gatsby-cli #The RUN instruction will execute any commands in a new layer on top of the current image and commit the results. The resulting committed image will be used for the next step in the Dockerfile.
	RUN yarn install

	EXPOSE 80

	CMD ["yarn", "develop"] # There can only be one CMD instruction in a Dockerfile. If you list more than one CMD then only the last CMD will take effect. The main purpose of a CMD is to provide defaults for an executing container. These defaults can include an executable, or they can omit the executable, in which case you must specify an ENTRYPOINT instruction as well.