EMERGING TRENDS IN SOFTWARE ENGINEERING
DEVOPS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is not a recommended Dockerfile Directive?
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FROM
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COPY
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MAINTAINER
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LABEL
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EXPOSE
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Explanation:
Detailed explanation-1: -Which of following statements is true about the architecture of Docker? The docker command executes REST API calls. All answers are true.
Detailed explanation-2: -The FROM instruction must always be the first instruction in the Dockerfile. As an argument, you provide a name and an optional tag for an image that should be used as the base for your Docker container.
Detailed explanation-3: -FROM openjdk:13-jdk-alpine. LABEL maintainer="Manu Manjunatha <manu.mjava4coding.com>” LABEL description="This example Dockerfile installs NGINX.” MAINTAINER Manu Manjunatha <manu.mjava4coding.com> ARG JAR FILE=target/*.jar. COPY $JAR FILE app.jar. ENTRYPOINT ["java", “-jar", “/app.jar"]
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