Hi mates I have been working on creating a TomEE image in Docker. I am closely to be able to release an Apache TomEE official repository on docker hub, but I prefer you take a look first.
First of all I have decided to change from official openjdk image which is based on debian, to official Alpine image. This change is pretty simple, the Alpine docker image is a light docker image (only 5MB) and following the philosophy of TomEE of light yet powerful distribution, I think this is a really good movement in these terms. Now the TomEE Docker image is 200MB less than the one using Debian. Concretely 191MB in front of 379MB. Let me share with you the Dockerfile content: FROM alpine:3.2 RUN apk --update add bash RUN apk --update add curl RUN apk --update add openjdk7 RUN apk --update add gnupg # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added RUN addgroup -S tomee && adduser -S -G tomee tomee ENV PATH /usr/local/tomee/bin:$PATH RUN mkdir -p /usr/local/tomee RUN chown tomee:tomee /usr/local/tomee WORKDIR /usr/local/tomee USER tomee RUN curl -SL http://www.apache.org/dist/tomee/KEYS -o KEYS \ && gpg --import KEYS RUN curl -SL https://dist.apache.org/repos/dist/release/tomee/tomee-1.7.2/apache-tomee-1.7.2-webprofile.tar.gz.asc -o tomee.tar.gz.asc RUN curl -SL http://apache.rediris.es/tomee/tomee-1.7.2/apache-tomee-1.7.2-webprofile.tar.gz -o tomee.tar.gz \ && tar -zxvf tomee.tar.gz \ && gpg --verify tomee.tar.gz.asc tomee.tar.gz \ && mv apache-tomee-webprofile-1.7.2/* /usr/local/tomee \ && rm -Rf apache-tomee-plus-1.7.2 \ && rm bin/*.bat \ && rm tomee.tar.gz* EXPOSE 8080 CMD ["catalina.sh", "run"] But it has two drawback is that alpine 3.2 still don't have support in APK for openjdk8, but it will be added for alpine 3.3 so I am quite confident that the best way to proceed is wait until it is released and then update our Dockerfile and finally release our image as official image with OpenJDK8. The second problem is that we are setting alpine linux as default image in our distribution and not a more popular like Debian. Another message I have seen while creating the image was this one: gpg: Signature made Sun May 17 22:18:30 2015 UTC using DSA key ID D297D428 gpg: Good signature from "Jonathan Gallimore <jgallim...@apache.org>" [unknown] gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. Primary key fingerprint: DBCC D103 B8B2 4F86 FFAA B025 C8BB 472C D297 D428 I don't know if Jonathan's key was not created by a trusted key. Well that's all, let me know what you think about this change or what you would like to see in official TomEE image. Alex.