What is .build-deps in the following command? I can’t find an explanation in the Alpine docs. Is this a file that is predefined? Is see this referenced in many Dockerfiles. RUN apk add –no-cache –virtual .build-deps \ gcc \ freetype-dev \ musl-dev RUN pip install –no-cache-dir <packages_that_require_gcc…> \ RUN apk del .build-deps 2 Answers 2
Java 11 is announced to be the most recent LTS version. So, we’re trying to start new services based on this Java version. However, the base Docker image for Java 11 is much larger than the equivalent for Java 8: openjdk:8-jre-alpine: 84 MB openjdk:11-jre-slim: 283 MB (I’m considering only the official OpenJDK and the most … Read more
I’m using alpine (or an image that is based on Alpine) as the base image in my Dockerfile. Which instructions do I need to add to create a user? Eventually I’ll use this user to run the application I’ll place into the container so that the root user does not. 3 Answers 3
To start an interactive shell for the Ubuntu image we can run: ole@T:~$ docker run -it –rm ubuntu root@1a6721e1fb64:/# ls bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var But when this is run for the Alpine Docker image, the following results: ole@T:~$ docker run … Read more
I created a docker image from openjdk:8-jdk-alpine but when I try to execute simple commands I get the following errors: RUN bash /bin/sh: bash: not found RUN ./gradlew build env: can’t execute ‘bash’: No such file or directory 5 Answers 5
