mirror of
https://github.com/kikootwo/ReadMeABook.git
synced 2026-06-03 04:40:09 +00:00
Joe Harrison
7addb1dc70
Implements smart detection that allows users to provide external DATABASE_URL or REDIS_URL. When external services are detected, internal instances are automatically disabled to save resources. Maintains full backward compatibility with existing setup
74 lines
2.7 KiB
Bash
74 lines
2.7 KiB
Bash
#!/bin/bash
|
|
# Redis startup wrapper for unified container
|
|
# Smart supervisor: detects external Redis and sleeps instead of starting local instance
|
|
#
|
|
# Behavior:
|
|
# - If REDIS_URL points to external host (not 127.0.0.1/localhost), sleep infinity
|
|
# - Otherwise, start local Redis instance
|
|
#
|
|
# Uses gosu to ensure correct PUID:PGID for file operations
|
|
#
|
|
# Supports:
|
|
# - Docker/LXC: Uses gosu to switch to PUID:PGID (default)
|
|
# - Rootless Podman: Set ROOTLESS_CONTAINER=true to skip gosu
|
|
|
|
set -e
|
|
|
|
# Load environment from /etc/environment (set by entrypoint)
|
|
if [ -f /etc/environment ]; then
|
|
set -a
|
|
source /etc/environment
|
|
set +a
|
|
fi
|
|
|
|
echo "[Redis] Checking for external Redis configuration..."
|
|
|
|
# Extract host from REDIS_URL
|
|
# Format: redis://host:port or redis://:password@host:port
|
|
if [ -n "$REDIS_URL" ]; then
|
|
# Extract the host part (between :// or @, and :port or end)
|
|
REDIS_HOST=$(echo "$REDIS_URL" | sed -n 's|redis://\([^:@]*@\)\?\([^:/]*\).*|\2|p')
|
|
|
|
echo "[Redis] Detected REDIS_URL host: $REDIS_HOST"
|
|
|
|
# Check if host is external (not localhost or 127.0.0.1)
|
|
if [ "$REDIS_HOST" != "127.0.0.1" ] && [ "$REDIS_HOST" != "localhost" ]; then
|
|
echo "[Redis] ✅ External Redis detected at $REDIS_HOST"
|
|
echo "[Redis] Skipping local Redis startup - sleeping to keep supervisord happy"
|
|
exec sleep infinity
|
|
fi
|
|
fi
|
|
|
|
echo "[Redis] Starting local Redis server..."
|
|
|
|
# Get PUID/PGID (default to redis user's current IDs if not set)
|
|
PUID=${PUID:-$(id -u redis)}
|
|
PGID=${PGID:-$(id -g redis)}
|
|
|
|
echo "[Redis] Process will run as UID:GID = $PUID:$PGID"
|
|
|
|
# =============================================================================
|
|
# START REDIS WITH APPROPRIATE UID:GID HANDLING
|
|
# =============================================================================
|
|
# Two scenarios:
|
|
# 1. Default: Running as root, use gosu to switch to PUID:PGID
|
|
# 2. ROOTLESS_CONTAINER=true: Skip gosu (rootless Podman user namespace handles UID mapping)
|
|
|
|
REDIS_CMD="/usr/bin/redis-server --appendonly yes --dir /var/lib/redis --bind 127.0.0.1 --port 6379"
|
|
|
|
if [ "$(id -u)" = "0" ]; then
|
|
if [ "${ROOTLESS_CONTAINER}" = "true" ]; then
|
|
# Rootless Podman: Skip gosu - user namespace already maps UID 0 to host user
|
|
echo "[Redis] ROOTLESS_CONTAINER=true - skipping gosu (user namespace handles UID mapping)"
|
|
exec $REDIS_CMD
|
|
else
|
|
# Default: Use gosu to switch to the specified PUID:PGID
|
|
echo "[Redis] Switching to UID:GID $PUID:$PGID via gosu..."
|
|
exec gosu "$PUID:$PGID" $REDIS_CMD
|
|
fi
|
|
else
|
|
# Not running as root - run directly (fallback for unusual configurations)
|
|
echo "[Redis] Warning: Not running as root, cannot use gosu. Running as current user ($(id -u):$(id -g))."
|
|
exec $REDIS_CMD
|
|
fi
|