Init

.drone.yml

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+kind: pipeline
+name: default
+
+steps:
+- name: docker
+  image: plugins/docker
+  settings:
+    registry: r.sbruder.de
+    username:
+      from_secret: docker_username
+    password:
+      from_secret: docker_password
+    repo: r.sbruder.de/audible-getkey

Dockerfile

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+# Samples: https://github.com/inAudible-NG/audible-samples
+
+FROM alpine as download
+
+RUN apk add --no-cache git \
+    && git clone --depth=1 https://github.com/inAudible-NG/tables
+
+RUN cd /opt/ \
+    && wget -O- https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz | tar -Jxvf-
+
+FROM debian:testing
+
+COPY --from=download /tables /opt/rainbowcrack
+COPY --from=download /opt/ffmpeg-*/ffprobe /usr/local/bin/ffprobe
+COPY entrypoint.sh /usr/local/bin/
+
+ENTRYPOINT ["entrypoint.sh"]

entrypoint.sh

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+#!/bin/sh
+set -e
+if [ -z "$1" ]; then
+	echo "please provide a sample aax file"
+	exit 1
+fi
+
+CHECKSUM=$(ffprobe $1 2>&1 | grep -oP '\[aax\] file checksum == \K([0-9]|[a-f])*')
+
+echo "Getting key for checksum ${CHECKSUM}"
+cd /opt/rainbowcrack/
+./rcrack . -h $CHECKSUM