Thomas Camlong
03f0d12b32
Adds a background loop in run.sh that reads cgroup v2 memory stats and sends a `ram_usage` event to PostHog EU. This lets us track real-world memory footprint across releases. Configurable via RAM_REPORT_INTERVAL env var (defaults to 1800s).
90 lines
2.9 KiB
Bash
90 lines
2.9 KiB
Bash
#!/usr/bin/env bash
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# Create sub directories in volume
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mkdir -p /appdata/db
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mkdir -p /appdata/redis
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mkdir -p /appdata/trusted-certificates
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# Run migrations
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if [ "$DB_MIGRATIONS_DISABLED" = "true" ]; then
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echo "DB migrations are disabled, skipping"
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else
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echo "Running DB migrations"
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# We disable redis logs during migration as the redis client is not yet started
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DISABLE_REDIS_LOGS=true node ./db/migrations/$DB_DIALECT/migrate.cjs ./db/migrations/$DB_DIALECT
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fi
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# Auth secret is generated every time the container starts as it is required, but not used because we don't need JWTs or Mail hashing
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export AUTH_SECRET=$(openssl rand -base64 32)
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# Support secret file for encryption key (is not empty and file exists)
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if [ -n "$SECRET_ENCRYPTION_KEY_FILE" ] && [ -f "$SECRET_ENCRYPTION_KEY_FILE" ]; then
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export SECRET_ENCRYPTION_KEY=$(cat $SECRET_ENCRYPTION_KEY_FILE)
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fi
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# Start nginx proxy
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# 1. Replace the HOSTNAME in the nginx template file
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# 2. Create the nginx configuration file from the template
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# 3. Start the nginx server
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export HOSTNAME
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envsubst '${HOSTNAME}' < /etc/nginx/templates/nginx.conf > /etc/nginx/nginx.conf
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# Start services in the background and store their PIDs
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nginx -g 'daemon off;' &
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NGINX_PID=$!
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if [ "$REDIS_IS_EXTERNAL" = "true" ]; then
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echo "Using external Redis server at redis://$REDIS_HOST:$REDIS_PORT"
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REDIS_PID=""
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else
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echo "Starting internal Redis server"
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redis-server /app/redis.conf &
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REDIS_PID=$!
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fi
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node apps/nextjs/server.js &
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NEXTJS_PID=$!
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report_ram() {
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INTERVAL=${RAM_REPORT_INTERVAL:-1800}
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while true; do
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sleep "$INTERVAL"
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MEM_USED_BYTES=$(cat /sys/fs/cgroup/memory.current)
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MEM_MAX_RAW=$(cat /sys/fs/cgroup/memory.max)
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MEM_USED_MB=$((MEM_USED_BYTES / 1048576))
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if [ "$MEM_MAX_RAW" = "max" ]; then
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MEM_MAX_MB=0
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else
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MEM_MAX_MB=$((MEM_MAX_RAW / 1048576))
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fi
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wget -q --post-data="{\"api_key\":\"phc_pWxeD1hbl4ip02JYReX1Crjkt5DhB3dduigirHMCtFE\",\"event\":\"ram_usage\",\"distinct_id\":\"${HOSTNAME:-homarr}\",\"properties\":{\"ram_used_mb\":${MEM_USED_MB},\"ram_max_mb\":${MEM_MAX_MB},\"ram_used_bytes\":${MEM_USED_BYTES},\"\$process_person_profile\":false}}" \
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--header="Content-Type: application/json" \
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-O /dev/null https://hog.ajnart.dev/i/v0/e/ 2>/dev/null
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echo "Reported RAM: ${MEM_USED_MB}MB / ${MEM_MAX_MB}MB"
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done
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}
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report_ram &
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REPORT_RAM_PID=$!
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# Function to handle SIGTERM and shut down services
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terminate() {
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echo "Received SIGTERM. Shutting down..."
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kill -TERM $REPORT_RAM_PID $NGINX_PID $NEXTJS_PID 2>/dev/null
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wait
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# kill redis-server last because of logging of other services and only if $REDIS_PID is set
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if [ -n "$REDIS_PID" ]; then
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kill -TERM $REDIS_PID 2>/dev/null
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wait
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fi
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echo "Shutdown complete."
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exit 0
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}
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# When SIGTERM (docker stop <container>) / SIGINT (ctrl+c) is received, run the terminate function
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trap terminate TERM INT
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# Wait for all processes
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wait $NEXTJS_PID
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terminate
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