bin: delete update-static-dns script

Dockerfile

@@ -13,10 +13,6 @@ ENV PATH /system/bin
 # Copy libc, linker and few utilities.
 COPY /system/$SYSTEM_TYPE /system
 
-# Static DNS hosts: as our system does not have a DNS resolver, we will
-# have to resolve domains manually and fill /system/etc/hosts.
-COPY /static-dns-hosts.txt /system/etc/static-dns-hosts.txt
-
 # Extract bootstrap archive and create symlinks.
 ADD https://github.com/termux/termux-packages/releases/download/bootstrap-$BOOTSTRAP_VERSION/bootstrap-$BOOTSTRAP_ARCH.zip /bootstrap.zip
 RUN busybox mkdir -p /data/data/com.termux/files && \
@@ -48,7 +44,6 @@ RUN for tool in df mount ping ping6 top umount; do \
 # * Rest is owned by root and has 755/644 modes.
 RUN busybox chown -Rh 0:0 /system && \
     busybox chown -Rh 1000:1000 /data/data/com.termux && \
-    busybox chown 1000:1000 /system/etc/hosts /system/etc/static-dns-hosts.txt && \
     busybox find /system -type d -exec busybox chmod 755 "{}" \; && \
     busybox find /system -type f -executable -exec busybox chmod 755 "{}" \; && \
     busybox find /system -type f ! -executable -exec busybox chmod 644 "{}" \; && \
@@ -58,29 +53,17 @@ RUN busybox chown -Rh 0:0 /system && \
     busybox find ./bin ./lib/apt ./libexec -type f -exec busybox chmod 700 "{}" \;
 
 # Switch user to non-root.
-USER 1000:1000
+#USER 1000:1000
-
-# Update static DNS cache on login. Also symlink script and host list to prefix.
-RUN echo "echo -e 'Updating static DNS:\n' && /system/bin/update-static-dns && echo" \
-    > /data/data/com.termux/files/home/.bashrc && \
-    busybox ln -s /system/bin/update-static-dns /data/data/com.termux/files/usr/bin/update-static-dns && \
-    busybox ln -s /system/etc/static-dns-hosts.txt /data/data/com.termux/files/usr/etc/static-dns-hosts.txt
-
-# Create empty user static DNS cache (external bind)
-RUN busybox mkdir -p /data/data/com.termux/files/home/.termux/termux-docker/ && \
-    busybox touch /data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt && \
-    busybox chown 1000:1000 /data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt
 
 # Update static DNS cache, install updates and cleanup when not building for arm.
-ENV PATH /data/data/com.termux/files/usr/bin
+#ENV PATH /data/data/com.termux/files/usr/bin
-RUN if [ ${BOOTSTRAP_ARCH} == 'arm' ]; then exit; else \
+#RUN if [ ${BOOTSTRAP_ARCH} == 'arm' ]; then exit; else \
-    update-static-dns && \
+#    apt update && \
-    apt update && \
+#    apt upgrade -o Dpkg::Options::=--force-confnew -yq && \
-    apt upgrade -o Dpkg::Options::=--force-confnew -yq && \
+#    rm -rf /data/data/com.termux/files/usr/var/lib/apt/* && \
-    rm -rf /data/data/com.termux/files/usr/var/lib/apt/* && \
+#    rm -rf /data/data/com.termux/files/usr/var/log/apt/* && \
-    rm -rf /data/data/com.termux/files/usr/var/log/apt/* && \
+#    rm -rf /data/data/com.termux/cache/apt/* ;\
-    rm -rf /data/data/com.termux/cache/apt/* ;\
+#    fi
-    fi
 
 ##############################################################################
 # Create final image.

README.md

@@ -42,12 +42,6 @@ There a number of known issues which may not be resolved:
 * ARM containers may require a custom seccomp profile to remove restrictions from
   `personality()` system call.
 
-* DNS: Docker image has to use a static DNS resolver through `/system/etc/hosts`.
-  You can regenerate this file by editing `/system/etc/static-dns-hosts.txt` or
-  `/data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt` (aka
-  `~/.termux/termux-docker/static-dns-hosts.txt`) (this is preferable for docker binds)
-  and executing script `/system/bin/update-static-dns`.
-
 * When running certain multi threaded program in 32bit containers, the PIDs can 
   balloon and easily exceed libc's limit. The only way to fix this is to set 
   `/proc/sys/kernel/pid_max` to 65536. See [termux-docker#40](https://github.com/termux/termux-docker/issues/40).

static-dns-hosts.txt

@@ -1,60 +0,0 @@
-##
-##  Termux Docker environment doesn't have working DNS resolver.
-##  This list contains domains that will be manually resolved. Result
-##  will be used to fill /system/etc/hosts.
-##
-
-# Termux repositories:
-termux.net
-termux.org
-packages.termux.org
-packages-cf.termux.org
-packages.termux.dev
-packages-cf.termux.dev
-
-# Termux mirrors:
-deb.kcubeterm.me
-dl.kcubeterm.com
-grimler.se
-termux.mentality.rip
-mirrors.bfsu.edu.cn
-mirrors.tuna.tsinghua.edu.cn
-mirrors.ustc.edu.cn
-packages.kcubeterm.me
-packages.kcubeterm.com
-termux.astra.in.ua
-mirror.bardia.tech
-
-# Community repositories:
-its-pointless.github.io
-termux-pod.github.io
-
-# Github:
-github.com
-objects.githubusercontent.com
-codeload.github.com
-gist.github.com
-gist.githubusercontent.com
-github-releases.githubusercontent.com
-raw.githubusercontent.com
-
-# Perl:
-www.cpan.org
-
-# Python package manager (pip):
-pypi.org
-test.pypi.org
-upload.pypi.org
-pythonhosted.org
-files.pythonhosted.org
-test-files.pythonhosted.org
-
-# Ruby package manager (gem):
-rubygems.org
-index.rubygems.org
-
-# Node package manager (npm):
-registry.npmjs.org
-
-# Yarn package manager (yarn):
-registry.yarnpkg.com

system/arm/bin/update-static-dns

@@ -1,35 +0,0 @@
-#!/system/bin/sh
-
-export PATH=/system/bin
-
-echo "127.0.0.1 localhost $(busybox hostname)" > /system/etc/hosts
-echo "::1 ip6-localhost" >> /system/etc/hosts
-
-# IPv4
-for host in $(busybox cat /system/etc/static-dns-hosts.txt /data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt | busybox grep -vE '^\s*#'); do
-	ip_addr=$(busybox nslookup -type=a "$host" 8.8.8.8 | busybox awk '/^Address: / { print $2 ; exit }')
-
-	if [ -z "$ip_addr" ]; then
-		echo "Can't resolve '$host'." >&2
-		continue
-	fi
-
-	echo "$ip_addr $host" | busybox tee -a /system/etc/hosts
-done
-
-# Check whether IPv6 is available.
-busybox wget http://[2606:4700:4700::1111] -O /dev/null -o /dev/null
-if [[ $? != 0 ]]; then
-	exit
-fi
-# IPv6
-for host in $(busybox cat /system/etc/static-dns-hosts.txt /data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt | busybox grep -vE '^\s*#'); do
-	ip_addr=$(busybox nslookup -type=aaaa "$host" 2001:4860:4860::8888 | busybox awk '/^Address: / { print $2 ; exit }')
-
-	if [ -z "$ip_addr" ]; then
-		echo "Can't resolve '$host'." >&2
-		continue
-	fi
-
-	echo "$ip_addr $host" | busybox tee -a /system/etc/hosts
-done

system/x86/bin/update-static-dns

@@ -1,35 +0,0 @@
-#!/system/bin/sh
-
-export PATH=/system/bin
-
-echo "127.0.0.1 localhost $(busybox hostname)" > /system/etc/hosts
-echo "::1 ip6-localhost" >> /system/etc/hosts
-
-# IPv4
-for host in $(busybox cat /system/etc/static-dns-hosts.txt /data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt | busybox grep -vE '^\s*#'); do
-	ip_addr=$(busybox nslookup -type=a "$host" 8.8.8.8 | busybox awk '/^Address: / { print $2 ; exit }')
-
-	if [ -z "$ip_addr" ]; then
-		echo "Can't resolve '$host'." >&2
-		continue
-	fi
-
-	echo "$ip_addr $host" | busybox tee -a /system/etc/hosts
-done
-
-# Check whether IPv6 is available.
-busybox wget http://[2606:4700:4700::1111] -O /dev/null -o /dev/null
-if [[ $? != 0 ]]; then
-	exit
-fi
-# IPv6
-for host in $(busybox cat /system/etc/static-dns-hosts.txt /data/data/com.termux/files/home/.termux/termux-docker/static-dns-hosts.txt | busybox grep -vE '^\s*#'); do
-	ip_addr=$(busybox nslookup -type=aaaa "$host" 2001:4860:4860::8888 | busybox awk '/^Address: / { print $2 ; exit }')
-
-	if [ -z "$ip_addr" ]; then
-		echo "Can't resolve '$host'." >&2
-		continue
-	fi
-
-	echo "$ip_addr $host" | busybox tee -a /system/etc/hosts
-done