simplified tor image

tor/Dockerfile

@@ -1,7 +1,14 @@
-FROM alpine:3.12
+FROM alpine:3.13
 
-RUN apk add --no-cache tor su-exec shadow
-COPY entrypoint.sh /entrypoint
-RUN chmod +x entrypoint
-ENTRYPOINT ["/entrypoint"]
-CMD ["tor"]
+RUN addgroup --gid 10001 tor && \
+    adduser \
+        --uid 10000 \
+        --home /var/lib/tor \
+        --ingroup tor \
+        --disabled-password \
+        --shell /sbin/nologin \
+        tor && \
+    apk add --no-cache tor
+
+USER tor
+CMD tor

tor/entrypoint.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-set -xe
-
-[ -n "${USER_ID}" ] && usermod -u "${USER_ID}" tor
-
-for dir in $(awk '{if ($1 == "HiddenServiceDir") print $2}' /etc/tor/torrc)
-do
-    mkdir -p "${dir}"
-    chown tor "${dir}"
-    chmod 700 "${dir}"
-done
-
-su-exec tor "$@"