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I used docker to build my Java application and I using the multi-stage building and I have some problems every time when I run the docker command for building the docker creates new intermediate image with tag and name none and I need the possibility to called intermediate containers.
That is my dockerfile:
FROM jdk8_201-ubuntu16.04 as java_build
RUN apt-get update && \
apt-get install -y dos2unix
ARG MVN_USER
ARG MVN_PASS
ARG GIT_BRANCH
ARG BUILD_ID
ARG COMMIT_ID
WORKDIR /tmp/app
COPY pom.xml /maven-build/pom.xml
COPY /.mvn/settings.xml /maven-build/settings.xml
COPY mvnw ./mvnw
COPY mvnw.cmd ./mvnw.cmd
COPY /.mvn ./.mvn
RUN chmod +x ./mvnw && \
./mvnw -s /maven-build/settings.xml -B -f /maven-build/pom.xml dependency:resolve dependency:resolve-plugins dependency:go-offline
COPY ./ ./
FROM ubuntu
...
and after each running docker build command I had a many none images:
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 30e2325fcf15 18 hours ago 1.68GB
<none> <none> 30e2325fcf16 18 hours ago 1.68GB
<none> <none> 30e2325fcf14 18 hours ago 1.68GB
<none> <none> 30e2325fcf18 18 hours ago 1.68GB
<none> <none> 30e2325fcf13 18 hours ago 1.68GB
How can I replace none name of intermediate images to my_image_name?
883
2. Explicitly tagging an image through the tag command. This command just creates an alias (a reference) by the name of the TARGET_IMAGE that refers to the SOURCE_IMAGE. That's all it does.
With multi-stage builds, you use multiple FROM statements in your Dockerfile. Each FROM instruction can use a different base, and each of them begins a new stage of the build. You can selectively copy artifacts from one stage to another, leaving behind everything you don't want in the final image.
Docker containers are building blocks for applications. Each container is an image with a readable/writeable layer on top of a bunch of read-only layers. These layers (also called intermediate images) are generated when the commands in the Dockerfile are executed during the Docker image build.
You can use the --target keyword to build just a specific stage:
docker build --target compile-image --tag compile-image:0.0.1 .
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