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Use CAPS for build args in Dockerfile example #19029

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Use CAPS for build args in Dockerfile example #19029

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7 changes: 3 additions & 4 deletions spring-boot-project/spring-boot-docs/src/main/asciidoc/deployment.adoc
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Expand Up @@ -41,8 +41,8 @@ For example, using a `Dockerfile` you could express it in this form:
----
FROM openjdk:8-jdk-alpine AS builder
WORKDIR target/dependency
ARG appjar
COPY ${appjar} app.jar
ARG APPJAR=target/*.jar
COPY ${APPJAR} app.jar
RUN jar -xf ./app.jar

FROM openjdk:8-jre-alpine
Expand All @@ -54,15 +54,14 @@ For example, using a `Dockerfile` you could express it in this form:
ENTRYPOINT ["java","-cp","app:app/lib/*","com.example.MyApplication"]
----

Assuming the above `Dockerfile` is the current directory, your docker image can be built specifying the path to your application jar, as show in the following example:
Assuming the above `Dockerfile` is the current directory, your docker image can be built with `docker build .`, or optionally specifying the path to your application jar, as show in the following example:

[indent=0]
----
docker build --build-arg appjar=path/to/myapp.jar .
----



[[cloud-deployment]]
== Deploying to the Cloud
Spring Boot's executable jars are ready-made for most popular cloud PaaS (Platform-as-a-Service) providers.
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