Move challenge into pkg

pkg/challenge/Dockerfile

@@ -0,0 +1,59 @@
+FROM alpine AS mirror
+
+RUN mkdir -p /out/etc/apk/ && \
+    cp /etc/apk/repositories /out/etc/apk/ && \
+    cp -r /etc/apk/keys /out/etc/apk/keys
+
+RUN apk add --no-cache \
+    mdocml-apropos
+
+RUN apk add --no-cache --initdb -p /out \
+    alpine-baselayout \
+    beep \
+    bind-doc \
+    bind-tools \
+    busybox \
+    ca-certificates \
+    curl \
+    curl-doc \
+    e2fsprogs \
+    ethtool \
+    ethtool-doc \
+    fbida-fbi \
+    fbida-doc \
+    htop \
+    htop-doc \
+    iproute2 \
+    iproute2-doc \
+    kbd \
+    kbd-bkeymaps \
+    kbd-doc \
+    kbd-vlock \
+    man \
+    musl \
+    nano \
+    openssh-client \
+    openssh-doc \
+    openssh-keygen \
+    pciutils \
+    pciutils-doc \
+    ssmtp \
+    ssmtp-doc \
+    tcpdump \
+    tcpdump-doc \
+    testdisk \
+    testdisk-doc \
+    tini \
+    ttf-inconsolata \
+    util-linux \
+    util-linux-doc
+
+RUN makewhatis /out/usr/share/man
+
+RUN rm -rf /out/etc/inittab
+
+
+FROM scratch
+
+COPY --from=mirror /out/ /
+COPY lib/ /lib/