forked from DL-Mirrors/termux-docker
100 lines
4.2 KiB
Docker
100 lines
4.2 KiB
Docker
##############################################################################
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# Bootstrap Termux environment.
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FROM scratch AS bootstrap
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ARG BOOTSTRAP_VERSION=2022.05.01-r1%2Bapt-android-7
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ARG BOOTSTRAP_ARCH=i686
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ARG SYSTEM_TYPE=x86
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# Docker uses /bin/sh by default, but we don't have it currently.
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SHELL ["/system/bin/sh", "-c"]
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ENV PATH /system/bin
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# Copy libc, linker and few utilities.
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COPY /system/$SYSTEM_TYPE /system
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# Static DNS hosts: as our system does not have a DNS resolver, we will
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# have to resolve domains manually and fill /system/etc/hosts.
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COPY /static-dns-hosts.txt /system/etc/static-dns-hosts.txt
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# Extract bootstrap archive and create symlinks.
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ADD https://github.com/termux/termux-packages/releases/download/bootstrap-$BOOTSTRAP_VERSION/bootstrap-$BOOTSTRAP_ARCH.zip /bootstrap.zip
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RUN busybox mkdir -p /data/data/com.termux/files && \
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cd /data/data/com.termux/files && \
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busybox mkdir ../cache ./usr ./home && \
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busybox unzip -d usr /bootstrap.zip && \
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busybox rm /bootstrap.zip && \
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cd ./usr && \
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busybox cat SYMLINKS.txt | while read -r line; do \
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dest=$(echo "$line" | busybox awk -F '←' '{ print $1 }'); \
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link=$(echo "$line" | busybox awk -F '←' '{ print $2 }'); \
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busybox ln -s "$dest" "$link"; \
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done && \
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busybox rm SYMLINKS.txt && \
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busybox ln -s /data/data/com.termux/files/usr /usr && \
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busybox ln -s /data/data/com.termux/files/usr/bin /bin && \
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busybox ln -s /data/data/com.termux/files/usr/tmp /tmp
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# Link some utilities to busybox.
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# Some utilities in $PREFIX are actually a wrapper of the same binary
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# from /system/bin. See termux-tools/build.sh#L29.
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RUN for tool in df mount ping ping6 top umount; do \
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busybox ln -s /system/bin/busybox /system/bin/$tool; \
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done
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# Set ownership and file access modes:
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# * User content is owned by 1000:1000.
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# * Termux file modes are set only for user.
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# * Rest is owned by root and has 755/644 modes.
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RUN busybox chown -Rh 0:0 /system && \
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busybox chown -Rh 1000:1000 /data/data/com.termux && \
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busybox chown 1000:1000 /system/etc/hosts /system/etc/static-dns-hosts.txt && \
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busybox find /system -type d -exec busybox chmod 755 "{}" \; && \
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busybox find /system -type f -executable -exec busybox chmod 755 "{}" \; && \
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busybox find /system -type f ! -executable -exec busybox chmod 644 "{}" \; && \
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busybox find /data -type d -exec busybox chmod 755 "{}" \; && \
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busybox find /data/data/com.termux/files -type f -o -type d -exec busybox chmod g-rwx,o-rwx "{}" \; && \
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cd /data/data/com.termux/files/usr && \
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busybox find ./bin ./lib/apt ./lib/bash ./libexec -type f -exec busybox chmod 700 "{}" \;
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# Switch user to non-root.
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USER 1000:1000
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# Update static DNS cache on login. Also symlink script and host list to prefix.
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RUN echo "echo -e 'Updating static DNS:\n' && /system/bin/update-static-dns && echo" \
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> /data/data/com.termux/files/home/.bashrc && \
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busybox ln -s /system/bin/update-static-dns /data/data/com.termux/files/usr/bin/update-static-dns && \
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busybox ln -s /system/etc/static-dns-hosts.txt /data/data/com.termux/files/usr/etc/static-dns-hosts.txt
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# Update static DNS cache, install updates and cleanup when not building for arm.
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ENV PATH /data/data/com.termux/files/usr/bin
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RUN if [ ${BOOTSTRAP_ARCH} == 'arm' ]; then exit; else \
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update-static-dns && \
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apt update && \
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apt upgrade -o Dpkg::Options::=--force-confnew -yq && \
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rm -rf /data/data/com.termux/files/usr/var/lib/apt/* && \
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rm -rf /data/data/com.termux/files/usr/var/log/apt/* && \
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rm -rf /data/data/com.termux/cache/apt/* ;\
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fi
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##############################################################################
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# Create final image.
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FROM scratch
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ENV ANDROID_DATA /data
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ENV ANDROID_ROOT /system
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ENV HOME /data/data/com.termux/files/home
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ENV LANG en_US.UTF-8
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ENV PATH /data/data/com.termux/files/usr/bin
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ENV PREFIX /data/data/com.termux/files/usr
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ENV TMPDIR /data/data/com.termux/files/usr/tmp
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ENV TZ UTC
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COPY --from=bootstrap / /
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WORKDIR /data/data/com.termux/files/home
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SHELL ["/data/data/com.termux/files/usr/bin/sh", "-c"]
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USER 1000:1000
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CMD ["/data/data/com.termux/files/usr/bin/login"]
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