Update Dockerfile

Dockerfile

@@ -17,6 +17,139 @@ USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
+############### NGINX Unprivileged ###############
+
+
+ENV NGINX_VERSION   1.26.0
+ENV NJS_VERSION     0.8.4
+ENV NJS_RELEASE     1~bookworm
+ENV PKG_RELEASE     1~bookworm
+
+ARG UID=101
+ARG GID=101
+
+RUN set -x \
+# create nginx user/group first, to be consistent throughout docker variants
+    && groupadd --system --gid $GID nginx || true \
+    && useradd --system --gid nginx --no-create-home --home /nonexistent --comment "nginx user" --shell /bin/false --uid $UID nginx || true \
+    && apt-get update \
+    && apt-get install --no-install-recommends --no-install-suggests -y gnupg1 ca-certificates \
+    && \
+    NGINX_GPGKEY=573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62; \
+    NGINX_GPGKEY_PATH=/etc/apt/keyrings/nginx-archive-keyring.gpg; \
+    export GNUPGHOME="$(mktemp -d)"; \
+    found=''; \
+    for server in \
+        hkp://keyserver.ubuntu.com:80 \
+        pgp.mit.edu \
+    ; do \
+        echo "Fetching GPG key $NGINX_GPGKEY from $server"; \
+        gpg1 --keyserver "$server" --keyserver-options timeout=10 --recv-keys "$NGINX_GPGKEY" && found=yes && break; \
+    done; \
+    test -z "$found" && echo >&2 "error: failed to fetch GPG key $NGINX_GPGKEY" && exit 1; \
+    gpg1 --export "$NGINX_GPGKEY" > "$NGINX_GPGKEY_PATH" ; \
+    rm -rf "$GNUPGHOME"; \
+    apt-get remove --purge --auto-remove -y gnupg1 && rm -rf /var/lib/apt/lists/* \
+    && dpkgArch="$(dpkg --print-architecture)" \
+    && nginxPackages=" \
+        nginx=${NGINX_VERSION}-${PKG_RELEASE} \
+        nginx-module-xslt=${NGINX_VERSION}-${PKG_RELEASE} \
+        nginx-module-geoip=${NGINX_VERSION}-${PKG_RELEASE} \
+        nginx-module-image-filter=${NGINX_VERSION}-${PKG_RELEASE} \
+        nginx-module-njs=${NGINX_VERSION}+${NJS_VERSION}-${NJS_RELEASE} \
+    " \
+    && case "$dpkgArch" in \
+        amd64|arm64) \
+# arches officialy built by upstream
+            echo "deb [signed-by=$NGINX_GPGKEY_PATH] https://nginx.org/packages/debian/ bookworm nginx" >> /etc/apt/sources.list.d/nginx.list \
+            && apt-get update \
+            ;; \
+        *) \
+# we're on an architecture upstream doesn't officially build for
+# let's build binaries from the published source packages
+            echo "deb-src [signed-by=$NGINX_GPGKEY_PATH] https://nginx.org/packages/debian/ bookworm nginx" >> /etc/apt/sources.list.d/nginx.list \
+            \
+# new directory for storing sources and .deb files
+            && tempDir="$(mktemp -d)" \
+            && chmod 777 "$tempDir" \
+# (777 to ensure APT's "_apt" user can access it too)
+            \
+# save list of currently-installed packages so build dependencies can be cleanly removed later
+            && savedAptMark="$(apt-mark showmanual)" \
+            \
+# build .deb files from upstream's source packages (which are verified by apt-get)
+            && apt-get update \
+            && apt-get build-dep -y $nginxPackages \
+            && ( \
+                cd "$tempDir" \
+                && DEB_BUILD_OPTIONS="nocheck parallel=$(nproc)" \
+                    apt-get source --compile $nginxPackages \
+            ) \
+# we don't remove APT lists here because they get re-downloaded and removed later
+            \
+# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
+# (which is done after we install the built packages so we don't have to redownload any overlapping dependencies)
+            && apt-mark showmanual | xargs apt-mark auto > /dev/null \
+            && { [ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; } \
+            \
+# create a temporary local APT repo to install from (so that dependency resolution can be handled by APT, as it should be)
+            && ls -lAFh "$tempDir" \
+            && ( cd "$tempDir" && dpkg-scanpackages . > Packages ) \
+            && grep '^Package: ' "$tempDir/Packages" \
+            && echo "deb [ trusted=yes ] file://$tempDir ./" > /etc/apt/sources.list.d/temp.list \
+# work around the following APT issue by using "Acquire::GzipIndexes=false" (overriding "/etc/apt/apt.conf.d/docker-gzip-indexes")
+#   Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
+#   ...
+#   E: Failed to fetch store:/var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages  Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
+            && apt-get -o Acquire::GzipIndexes=false update \
+            ;; \
+    esac \
+    \
+    && apt-get install --no-install-recommends --no-install-suggests -y \
+                        $nginxPackages \
+                        gettext-base \
+                        curl \
+    && apt-get remove --purge --auto-remove -y && rm -rf /var/lib/apt/lists/* /etc/apt/sources.list.d/nginx.list \
+    \
+# if we have leftovers from building, let's purge them (including extra, unnecessary build deps)
+    && if [ -n "$tempDir" ]; then \
+        apt-get purge -y --auto-remove \
+        && rm -rf "$tempDir" /etc/apt/sources.list.d/temp.list; \
+    fi \
+# forward request and error logs to docker log collector
+    && ln -sf /dev/stdout /var/log/nginx/access.log \
+    && ln -sf /dev/stderr /var/log/nginx/error.log \
+# create a docker-entrypoint.d directory
+    && mkdir /docker-entrypoint.d
+
+# implement changes required to run NGINX as an unprivileged user
+RUN sed -i 's,listen       80;,listen       8080;,' /etc/nginx/conf.d/default.conf \
+    && sed -i '/user  nginx;/d' /etc/nginx/nginx.conf \
+    && sed -i 's,/var/run/nginx.pid,/tmp/nginx.pid,' /etc/nginx/nginx.conf \
+    && sed -i "/^http {/a \    proxy_temp_path /tmp/proxy_temp;\n    client_body_temp_path /tmp/client_temp;\n    fastcgi_temp_path /tmp/fastcgi_temp;\n    uwsgi_temp_path /tmp/uwsgi_temp;\n    scgi_temp_path /tmp/scgi_temp;\n" /etc/nginx/nginx.conf \
+# nginx user must own the cache and etc directory to write cache and tweak the nginx config
+    && chown -R $UID:0 /var/cache/nginx \
+    && chmod -R g+w /var/cache/nginx \
+    && chown -R $UID:0 /etc/nginx \
+    && chmod -R g+w /etc/nginx
+
+COPY docker-entrypoint.sh /
+COPY 10-listen-on-ipv6-by-default.sh /docker-entrypoint.d
+COPY 15-local-resolvers.envsh /docker-entrypoint.d
+COPY 20-envsubst-on-templates.sh /docker-entrypoint.d
+COPY 30-tune-worker-processes.sh /docker-entrypoint.d
+ENTRYPOINT ["/docker-entrypoint.sh"]
+
+EXPOSE 8080
+
+STOPSIGNAL SIGQUIT
+
+USER $UID
+
+CMD ["nginx", "-g", "daemon off;"]
+
+############### NGINX Unprivileged ###############
+
 # Set the working directory to the user's home directory
 WORKDIR $HOME/app