Files
sencho/docker-entrypoint.sh
T
Anso f317a83814 fix(security): harden encryption key permissions, increase password minimum, remove sensitive logs (#323)
Self-heal encryption key file permissions to 0600 on startup. Increase
minimum password length from 6 to 8 characters per NIST SP 800-63B.
Remove console.log statements that exposed file paths, .env locations,
stack names, and admin usernames to stdout.
2026-04-01 21:27:37 -04:00

66 lines
3.0 KiB
Bash

#!/bin/sh
set -e
# Resolve the data directory, mirroring DatabaseService.ts logic.
DATA_DIR="${DATA_DIR:-/app/data}"
# If running as root (the default Docker container start), fix volume ownership,
# fix Docker socket group access, then drop privileges before executing the app.
#
# This is the industry-standard pattern used by the official PostgreSQL, Redis,
# and MariaDB Docker images, and by Docker management tools like Portainer and
# Dockge that also require access to /var/run/docker.sock as a non-root user.
#
# The UID guard also ensures compatibility with strict environments like
# Kubernetes (runAsNonRoot: true) or OpenShift, where the container is forced to
# run as a random high UID. In that case both blocks are skipped and the app
# exec's directly without crashing.
if [ "$(id -u)" = '0' ]; then
# 1. Fix data volume ownership.
# Handles host volumes previously created by root or a different UID, which
# would cause SQLITE_READONLY errors when the non-root sencho user starts.
# Only touches files with wrong user OR group (efficient on large dirs).
mkdir -p "$DATA_DIR"
find "$DATA_DIR" \( \! -user sencho -o \! -group sencho \) \
-exec chown sencho:sencho '{}' +
# Restrict encryption key to owner-only access (rw-------)
[ -f "$DATA_DIR/encryption.key" ] && chmod 600 "$DATA_DIR/encryption.key"
echo "[entrypoint] Data directory ownership ensured: $DATA_DIR"
# 2. Fix Docker socket group access.
# The Docker socket on the host is owned by the host's docker group, whose
# GID varies by Linux distribution and does not match any group inside the
# container by default.
if [ -S /var/run/docker.sock ]; then
DOCKER_SOCK_GID=$(stat -c '%g' /var/run/docker.sock)
DOCKER_SOCK_MODE=$(stat -c '%a' /var/run/docker.sock)
echo "[entrypoint] Docker socket found: GID=$DOCKER_SOCK_GID mode=$DOCKER_SOCK_MODE"
if [ "$DOCKER_SOCK_GID" = "0" ]; then
echo "[entrypoint] WARNING: Docker socket is root:root -- adding sencho to root group"
addgroup sencho root 2>/dev/null || true
else
if ! getent group "$DOCKER_SOCK_GID" > /dev/null 2>&1; then
addgroup -S -g "$DOCKER_SOCK_GID" docker-host
echo "[entrypoint] Created group docker-host with GID $DOCKER_SOCK_GID"
fi
DOCKER_GROUP=$(getent group "$DOCKER_SOCK_GID" | cut -d: -f1)
addgroup sencho "$DOCKER_GROUP" 2>/dev/null || true
echo "[entrypoint] Added sencho to group '$DOCKER_GROUP' (GID $DOCKER_SOCK_GID)"
fi
else
echo "[entrypoint] WARNING: /var/run/docker.sock not found -- Docker features unavailable"
fi
echo "[entrypoint] Dropping privileges to sencho (uid=$(id -u sencho))"
# 3. Drop privileges.
# Replace this shell with su-exec so Node becomes PID 1 and receives
# SIGTERM/SIGINT directly. su-exec calls getgrouplist() for named users,
# so all supplementary groups added above are inherited by the process.
exec su-exec sencho "$@"
fi
exec "$@"