Merge branch 'upgrade-to-temurin'

Closes #17

Dockerfile

@@ -1,7 +1,7 @@
 # Download, extract Nexus to /tmp/sonatype/nexus
-FROM debian:buster-slim as downloader
+FROM eclipse-temurin:8-jre-jammy as downloader
 
-ARG NEXUS_VERSION=3.38.1-01
+ARG NEXUS_VERSION=3.40.1-01
 ARG NEXUS_DOWNLOAD_URL=https://download.sonatype.com/nexus/3/nexus-${NEXUS_VERSION}-unix.tar.gz
 
 # Download Nexus and other stuff we need later
@@ -25,28 +25,13 @@ RUN wget --quiet --output-document=/tmp/nexus.tar.gz "${NEXUS_DOWNLOAD_URL}" &&
 # Runtime image
 # Logic adapted from official Dockerfile
 # https://github.com/sonatype/docker-nexus3/blob/master/Dockerfile
-FROM debian:buster-slim
+FROM eclipse-temurin:8-jre-jammy
 
 # Image metadata
 # git commit
 LABEL org.opencontainers.image.revision="-"
 LABEL org.opencontainers.image.source="https://github.com/klo2k/nexus3-docker"
 
-# Install Java 8
-ARG DEBIAN_FRONTEND=noninteractive
-RUN apt update && \
-    # Add AdoptOpenJDK repo
-    apt install --yes apt-transport-https ca-certificates gnupg software-properties-common wget && \
-    wget --quiet --output-document=- https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | apt-key add - && \
-    add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/ && \
-    # Work-around adoptopenjdk-8-hotspot-jre installation error
-    mkdir --parent /usr/share/man/man1/ && \
-    # Install JRE 8 along with missing dependency
-    apt update && apt install --yes adoptopenjdk-8-hotspot-jre libatomic1 && \
-    # Clean-up
-    apt purge --yes apt-transport-https gnupg software-properties-common wget && \
-    apt autoremove --yes && apt clean
-
 # Setup: Rename App, Data and Work directory per official image
 # App directory (/opt/sonatype/nexus)
 COPY --from=downloader /tmp/sonatype /opt/sonatype

Readme.md

@@ -11,22 +11,22 @@ So I'm creating one and sharing it with everyone :-) .
 
 
 
-# Running
-```
+## Running
+
+```bash
 docker run -d -p 8081:8081 --name nexus klo2k/nexus3
 ```
 
 
 
 
-# Building with "docker buildx" locally
-Initialise [buildx](https://docs.docker.com/buildx/working-with-buildx/), if you're on a x64 machine:
-```
-# Enable experimental mode
-export DOCKER_CLI_EXPERIMENTAL=enabled
+## Building with "docker buildx" locally
 
+Initialise [buildx](https://docs.docker.com/desktop/multi-arch/), if you're on a x64 machine:
+
+```bash
 # Enable ARM support
-docker run --rm --privileged docker/binfmt:a7996909642ee92942dcd6cff44b9b95f08dad64
+docker run --rm --privileged multiarch/qemu-user-static --reset --persistent yes
 
 # Create 'mybuilder' if not exist, set as default builder
 docker buildx inspect mybuilder||docker buildx create --name mybuilder
@@ -37,7 +37,8 @@ docker buildx inspect --bootstrap
 ```
 
 Build ARM 32-bit (armv7l):
-```
+
+```bash
 docker buildx build --pull \
   --platform "linux/arm/v7" \
   --tag "klo2k/nexus3" \
@@ -46,7 +47,8 @@ docker buildx build --pull \
 ```
 
 Build ARM 64-bit (aarch64):
-```
+
+```bash
 docker buildx build --pull \
   --platform "linux/arm64" \
   --tag "klo2k/nexus3" \
@@ -57,7 +59,8 @@ docker buildx build --pull \
 
 
 
-# Credits
+## Credits
+
 - *Nexus Team*: For the awesome repo, and their [Dockerfile](https://github.com/sonatype/docker-nexus3/blob/master/Dockerfile)
 - *Dan Rollo (bhamail)*: For the [jna-platform jar hack](https://bhamail.github.io/pinexus/nexussetup.html)
 - *Henry Wang (HenryQW)*: For [Docker buildx Github Action](https://www.henry.wang/2019/12/05/arm-dockerhub.html)