How to update the official Confluence Docker image to use the Oracle JDK?

[StefanN]

According to the "Support" paragraph in the official Confluence Docker image description, the actual image does not bundle the Oracle JDK and users are advised to build their own image:

https://hub.docker.com/r/atlassian/confluence-server/

https://confluence.atlassian.com/confkb/update-the-confluence-docker-image-to-use-oracle-jdk-829062521.html

I tried it but it is not clear at all how to proceed. With the official Docker image I have configured Confluence to use PostgreSQL. When I look at the linked Dockerfile, I see only the MySQL adapter and a completely different structue from the original Confluence Docker image:

https://bitbucket.org/atlassian/docker-atlassian-confluence-server/src

And besides, when trying to build this custom confluence image, it aborts with an error message:

docker build -t my-confluence .
Sending build context to Docker daemon 6.144 kB
Step 1 : FROM oracle/serverjre:8
 ---> d2f9b6a0c70b
Step 2 : MAINTAINER Atlassian Confluence
 ---> Running in 41102a35ad84
 ---> b32fb57a1193
Removing intermediate container 41102a35ad84
Step 3 : ENV CONFLUENCE_HOME /var/atlassian/application-data/confluence
 ---> Running in 0f6b1ca8937b
 ---> ead9753e012f
Removing intermediate container 0f6b1ca8937b
Step 4 : ENV CONFLUENCE_INSTALL /opt/atlassian/confluence
 ---> Running in 8e0b5bcac13b
 ---> 8c8a82e263fc
Removing intermediate container 8e0b5bcac13b
Step 5 : ENV CONF_VERSION 6.1.1
 ---> Running in cd09661eca36
 ---> 1b26d4018304
Removing intermediate container cd09661eca36
Step 6 : LABEL Description "This image is used to start Atlassian Confluence" Vendor "Atlassian" Version "${CONF_VERSION}"
 ---> Running in 08f0f1e1f977
 ---> 74c48448e255
Removing intermediate container 08f0f1e1f977
Step 7 : ENV CONFLUENCE_DOWNLOAD_URL http://www.atlassian.com/software/confluence/downloads/binary/atlassian-confluence-${CONF_VERSION}.tar.gz
 ---> Running in ae0d4335e1a2
 ---> 72d87e58a1a4
Removing intermediate container ae0d4335e1a2
Step 8 : ENV MYSQL_VERSION 5.1.38
 ---> Running in 534d9ea0105d
 ---> ac0dfe2109ca
Removing intermediate container 534d9ea0105d
Step 9 : ENV MYSQL_DRIVER_DOWNLOAD_URL http://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-${MYSQL_VERSION}.tar.gz
 ---> Running in ef776d9e7ee0
 ---> 3571b965666a
Removing intermediate container ef776d9e7ee0
Step 10 : ENV RUN_USER daemon
 ---> Running in e1f460e1c8cc
 ---> 0976d988555b
Removing intermediate container e1f460e1c8cc
Step 11 : ENV RUN_GROUP daemon
 ---> Running in fdf97c9fe5e3
 ---> cdd2e01624e6
Removing intermediate container fdf97c9fe5e3
Step 12 : RUN set -x     && apt-get update --quiet     && apt-get install --quiet --yes --no-install-recommends libtcnative-1 xmlstarlet     && apt-get clean     && mkdir -p                           "${CONFLUENCE_HOME}"     && chmod -R 700                       "${CONFLUENCE_HOME}"     && chown ${RUN_USER}:${RUN_GROUP}     "${CONFLUENCE_HOME}"     && mkdir -p                           "${CONFLUENCE_INSTALL}/conf"     && curl -Ls                           "${CONFLUENCE_DOWNLOAD_URL}" | tar -xz --directory "${CONFLUENCE_INSTALL}" --strip-components=1 --no-same-owner     && curl -Ls                           "${MYSQL_DRIVER_DOWNLOAD_URL}" | tar -xz --directory "${CONFLUENCE_INSTALL}/confluence/WEB-INF/lib" --strip-components=1 --no-same-owner "mysql-connector-java-${MYSQL_VERSION}/mysql-connector-java-${MYSQL_VERSION}-bin.jar"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/conf"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/temp"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/logs"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/work"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/conf"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/temp"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/logs"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/work"     && echo -e                            "\nconfluence.home=${CONFLUENCE_HOME}" >> "${CONFLUENCE_INSTALL}/confluence/WEB-INF/classes/confluence-init.properties"     && xmlstarlet                         ed --inplace         --delete                          "Server/@debug"         --delete                          "Server/Service/Connector/@debug"         --delete                          "Server/Service/Connector/@useURIValidationHack"         --delete                          "Server/Service/Connector/@minProcessors"         --delete                          "Server/Service/Connector/@maxProcessors"         --delete                          "Server/Service/Engine/@debug"         --delete                          "Server/Service/Engine/Host/@debug"         --delete                          "Server/Service/Engine/Host/Context/@debug"                                           "${CONFLUENCE_INSTALL}/conf/server.xml"     && touch -d "@0"                      "${CONFLUENCE_INSTALL}/conf/server.xml"
 ---> Running in 5001507b06c9
+ apt-get update --quiet
/bin/sh: apt-get: command not found
The command '/bin/sh -c set -x     && apt-get update --quiet     && apt-get install --quiet --yes --no-install-recommends libtcnative-1 xmlstarlet     && apt-get clean     && mkdir -p                           "${CONFLUENCE_HOME}"     && chmod -R 700                       "${CONFLUENCE_HOME}"     && chown ${RUN_USER}:${RUN_GROUP}     "${CONFLUENCE_HOME}"     && mkdir -p                           "${CONFLUENCE_INSTALL}/conf"     && curl -Ls                           "${CONFLUENCE_DOWNLOAD_URL}" | tar -xz --directory "${CONFLUENCE_INSTALL}" --strip-components=1 --no-same-owner     && curl -Ls                           "${MYSQL_DRIVER_DOWNLOAD_URL}" | tar -xz --directory "${CONFLUENCE_INSTALL}/confluence/WEB-INF/lib" --strip-components=1 --no-same-owner "mysql-connector-java-${MYSQL_VERSION}/mysql-connector-java-${MYSQL_VERSION}-bin.jar"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/conf"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/temp"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/logs"     && chmod -R 700                       "${CONFLUENCE_INSTALL}/work"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/conf"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/temp"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/logs"     && chown -R ${RUN_USER}:${RUN_GROUP}  "${CONFLUENCE_INSTALL}/work"     && echo -e                            "\nconfluence.home=${CONFLUENCE_HOME}" >> "${CONFLUENCE_INSTALL}/confluence/WEB-INF/classes/confluence-init.properties"     && xmlstarlet                         ed --inplace         --delete                          "Server/@debug"         --delete                          "Server/Service/Connector/@debug"         --delete                          "Server/Service/Connector/@useURIValidationHack"         --delete                          "Server/Service/Connector/@minProcessors"         --delete                          "Server/Service/Connector/@maxProcessors"         --delete                          "Server/Service/Engine/@debug"         --delete                          "Server/Service/Engine/Host/@debug"         --delete                          "Server/Service/Engine/Host/Context/@debug"                                           "${CONFLUENCE_INSTALL}/conf/server.xml"     && touch -d "@0"                      "${CONFLUENCE_INSTALL}/conf/server.xml"' returned a non-zero code: 127

I get the feeling that it is hopelessly outdated or the sync between the Oracle Docker image is lost.

So my question stands - how to update the official Confluence Docker image to use the Oracle JDK?

Thanks.

[Curtis]

Were you able to get this working?