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This commit is contained in:
Adam Outler
2025-09-30 22:01:03 -04:00
parent 044035ef62
commit 0cd1dc8987
15 changed files with 739 additions and 116 deletions
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@@ -30,6 +30,7 @@ ENV NETALERTX_FRONT=${NETALERTX_APP}/front
ENV NETALERTX_SERVER=${NETALERTX_APP}/server
ENV NETALERTX_API=${NETALERTX_APP}/api
ENV NETALERTX_DB=${NETALERTX_APP}/db
ENV NETALERTX_DB_FILE=${NETALERTX_DB}/app.db
ENV NETALERTX_BACK=${NETALERTX_APP}/back
ENV NETALERTX_LOG=${NETALERTX_APP}/log
ENV NETALERTX_PLUGINS_LOG=${NETALERTX_LOG}/plugins
@@ -52,30 +53,31 @@ ENV LOG_CROND=${NETALERTX_LOG}/crond.log
ENV SYSTEM_SERVICES=/services
ENV SYSTEM_SERVICES_CONFIG=${SYSTEM_SERVICES}/config
ENV SYSTEM_NGINIX_CONFIG=${SYSTEM_SERVICES_CONFIG}/nginx
ENV NGINX_CONFIG_FILE=${SYSTEM_NGINIX_CONFIG}/nginx.conf
ENV SYSTEM_NGINX_CONFIG_FILE=${SYSTEM_NGINIX_CONFIG}/nginx.conf
ENV NETALERTX_CONFIG_FILE=${NETALERTX_CONFIG}/app.conf
ENV NETALERTX_DB_FILE=${NETALERTX_DB}/app.db
ENV SYSTEM_SERVICES_PHP_FOLDER=${SYSTEM_SERVICES_CONFIG}/php
ENV SYSTEM_SERVICES_PHP_FPM_D=${SYSTEM_SERVICES_PHP_FOLDER}/php-fpm.d
ENV SYSTEM_SERVICES_CROND=${SYSTEM_SERVICES_CONFIG}/crond
ENV SYSTEM_SERVICES_RUN=${SYSTEM_SERVICES}/run
ENV SYSTEM_SERVICES_RUN_TMP=${SYSTEM_SERVICES_RUN}/tmp
ENV SYSTEM_SERVICES_RUN_LOG=${SYSTEM_SERVICES_RUN}/logs
ENV PHP_FPM_CONFIG_FILE=${SYSTEM_SERVICES_PHP_FOLDER}/php-fpm.conf
ENV PYTHONPATH=${NETALERTX_SERVER}
ENV PYTHONUNBUFFERED=1
RUN apk add --no-cache bash mtr libbsd zip lsblk sudo tzdata curl arp-scan iproute2 \
iproute2-ss nmap nmap-scripts traceroute nbtscan net-tools net-snmp-tools bind-tools awake \
ca-certificates sqlite php83 php83-fpm php83-cgi php83-curl php83-sqlite3 php83-session python3 \
nginx sudo libcap shadow && \
rm -rf /var/cache/apk/* && \
rm -f /etc/nginx/http.d/default.conf
iproute2-ss nmap nmap-scripts traceroute nbtscan net-tools net-snmp-tools bind-tools awake \
ca-certificates sqlite php83 php83-fpm php83-cgi php83-curl php83-sqlite3 php83-session python3 \
nginx sudo shadow && \
rm -Rf /var/cache/apk/* && \
rm -Rf /etc/nginx && \
addgroup -g 20211 netalertx && \
adduser -u 20211 -D -h ${NETALERTX_APP} -G netalertx netalertx && \
apk del shadow
#Create netalertx user and group
RUN addgroup -g 20211 netalertx && \
adduser -u 20211 -D -h ${NETALERTX_APP} -G netalertx netalertx
# Install application, copy files, set permissions
COPY --from=builder --chown=20212:20212 /opt/venv /opt/venv
@@ -84,33 +86,37 @@ COPY --chown=netalertx:netalertx install/production-filesystem/ /
COPY --chown=netalertx:netalertx --chmod=755 back ${NETALERTX_BACK}
COPY --chown=netalertx:netalertx --chmod=755 front ${NETALERTX_FRONT}
COPY --chown=netalertx:netalertx --chmod=755 server ${NETALERTX_SERVER}
RUN install -d -o netalertx -g netalertx -m 755 ${NETALERTX_API} ${NETALERTX_LOG} ${SYSTEM_SERVICES_RUN_TMP} && \
RUN install -d -o netalertx -g netalertx -m 755 ${NETALERTX_API} \
${NETALERTX_LOG} ${SYSTEM_SERVICES_RUN_TMP} ${SYSTEM_SERVICES_RUN_LOG} && \
sh -c "find ${NETALERTX_APP} -type f \( -name '*.sh' -o -name 'speedtest-cli' \) \
-exec chmod 750 {} \;"
# setcap to allow network tools with raw packet access to run without root
RUN setcap cap_net_raw,cap_net_admin+eip /usr/bin/nmap && \
setcap cap_net_raw,cap_net_admin+eip /usr/bin/arp-scan && \
setcap cap_net_raw,cap_net_admin+eip /usr/bin/traceroute && \
setcap cap_net_raw,cap_net_admin+eip /opt/venv/bin/scapy
#initialize each service with the dockerfiles/init-*.sh scripts, once.
RUN /bin/sh /build/init-nginx.sh && \
RUN apk add libcap && \
setcap cap_net_raw,cap_net_admin+eip /usr/bin/nmap && \
setcap cap_net_raw,cap_net_admin+eip /usr/bin/arp-scan && \
setcap cap_net_raw,cap_net_admin+eip /usr/bin/traceroute && \
setcap cap_net_raw,cap_net_admin+eip /opt/venv/bin/scapy && \
/bin/sh /build/init-nginx.sh && \
/bin/sh /build/init-php-fpm.sh && \
/bin/sh /build/init-crond.sh && \
/bin/sh /build/init-backend.sh && \
rm -rf /build
chmod 755 ${NETALERTX_BACK}/update_vendors.sh ${NETALERTX_BACK}/cron_script.sh ${NETALERTX_BACK}/speedtest-cli && \
rm -rf /build && \
apk del libcap
# set netalertx to allow sudoers for any command, no password
RUN echo "netalertx ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
ENTRYPOINT ["/bin/sh","-c","sleep infinity"]
# Final hardened stage to improve security by setting correct permissions and removing sudo access
# Final hardened stage to improve security by setting least possible permissions and removing sudo access.
# When complete, if the image is compromised, there's not much that can be done with it.
# This stage is separate from Runner stage so that devcontainer can use the Runner stage.
FROM runner AS hardened
# create readonly user and group with no shell access. Readonly user marks folders that are created by NetAlertX, but should not be modified.
# create readonly user and group with no shell access.
# Readonly user marks folders that are created by NetAlertX, but should not be modified.
RUN addgroup -g 20212 readonly && \
adduser -u 20212 -G readonly -D -h /app readonly && \
usermod -s /sbin/nologin readonly
@@ -126,13 +132,13 @@ RUN chown -R readonly:readonly ${NETALERTX_BACK} ${NETALERTX_FRONT} ${NETALERTX_
chmod -R 600 ${NETALERTX_CONFIG} ${NETALERTX_DB} ${NETALERTX_API} ${NETALERTX_LOG} && \
chmod 700 ${NETALERTX_CONFIG} ${NETALERTX_DB} ${NETALERTX_API} ${NETALERTX_LOG} ${NETALERTX_PLUGINS_LOG} ${SYSTEM_SERVICES_RUN_TMP} && \
chown readonly:readonly /entrypoint.sh && \
install -d -o netalertx -g netalertx -m 700 ${SYSTEM_SERVICES_RUN} ${SYSTEM_SERVICES_RUN_TMP} && \
chmod 005 /entrypoint.sh
install -d -o netalertx -g netalertx -m 700 ${SYSTEM_SERVICES_RUN} ${SYSTEM_SERVICES_RUN_TMP} ${SYSTEM_SERVICES_RUN_LOG} && \
chmod 005 /entrypoint.sh ${NETALERTX_BACK}/update_vendors.sh ${NETALERTX_BACK}/cron_script.sh ${NETALERTX_BACK}/speedtest-cli
#
# remove sudo and alpine installers pacakges
RUN apk del sudo libcap apk-tools && \
rm -rf /var/cache/apk/*
RUN apk del sudo apk-tools && \
rm -rf /var/cache/apk/*
# remove all users and groups except readonly and netalertx & remove all sudoers
RUN rm -Rf /etc/sudoers.d/* /etc/shadow /etc/gshadow /etc/sudoers \
/lib/apk /lib/firmware /lib/modules-load.d /lib/sysctl.d /mnt /home/ /root \