Server Configuration¶

The server is configured via environment variables and CLI flags. CLI flags take priority over environment variables, which take priority over defaults.

Configuration Methods¶

1. Environment Variables (`.env.secret` file)¶

Create a .env.secret file in the parent directory of app/:

# .env.secret
RUNQY_API_KEY=your-secret-api-key
REDIS_HOST=localhost
REDIS_PORT=6379
REDIS_PASSWORD=your-redis-password
DATABASE_HOST=localhost
DATABASE_PORT=5432
DATABASE_USER=postgres
DATABASE_PASSWORD=your-db-password
DATABASE_DBNAME=sdxl_queuing_dev

2. CLI Flags¶

runqy serve --port 8080 --api-key my-key --redis-uri redis://:password@localhost:6379
runqy serve --db-host pg.example.com --db-name mydb --db-user admin
runqy serve --sqlite --sqlite-path ./data/runqy.db

3. Priority Order¶

CLI flags > Environment variables > Defaults

Environment Variables Reference¶

Server¶

Variable	Default	CLI Flag	Description
`PORT`	`3000`	`--port`	HTTP server port
`RUNQY_API_KEY`	—	`--api-key` (global)	API key for authenticated endpoints

Redis¶

Variable	Default	CLI Flag	Description
`REDIS_HOST`	`localhost`	—	Redis hostname
`REDIS_PORT`	`6379`	—	Redis port
`REDIS_PASSWORD`	—	—	Redis password
`REDIS_TLS`	`false`	`--redis-tls`	Enable TLS for Redis connection
—	—	`--redis-uri` (global)	Redis URI (overrides host/port/password/tls). Format: `redis[s]://[:password@]host[:port]`

PostgreSQL¶

Variable	Default	CLI Flag	Description
`DATABASE_HOST`	`localhost`	`--db-host`	PostgreSQL hostname
`DATABASE_PORT`	`5432`	`--db-port`	PostgreSQL port
`DATABASE_USER`	`postgres`	`--db-user`	PostgreSQL username
`DATABASE_PASSWORD`	—	`--db-password`	PostgreSQL password
`DATABASE_DBNAME`	`sdxl_queuing_dev`	`--db-name`	PostgreSQL database name
`DATABASE_SSL`	`disable`	`--db-ssl`	PostgreSQL SSL mode

SQLite (alternative to PostgreSQL)¶

Variable	Default	CLI Flag	Description
`SQLITE_DB_PATH`	`runqy.db`	`--sqlite-path`	SQLite database file path
—	—	`--sqlite`	Use SQLite instead of PostgreSQL

Monitoring & Security¶

Variable	Default	CLI Flag	Description
`ASYNQ_READ_ONLY`	`false`	—	Restrict monitoring UI to read-only mode
`PROMETHEUS_ADDRESS`	—	—	Prometheus server URL for time-series charts
`RUNQY_JWT_SECRET`	(auto-generated)	—	JWT secret for dashboard authentication. If not set, a random secret is generated on each restart (sessions won't survive restarts)
`RUNQY_VAULT_MASTER_KEY`	—	—	Base64-encoded 32-byte key for vault encryption. If not set, the vaults feature is disabled

Additional Server Flags¶

Flag	Description
`--config <dir>`	Path to queue workers config directory (overrides `QUEUE_WORKERS_DIR`)
`--watch`	Enable file/git watching for config auto-reload
`--config-repo <url>`	GitHub repo URL for configs
`--config-branch <branch>`	Git branch (default: main)
`--no-ui`	Disable the monitoring web dashboard
`--debug`	Enable verbose logging

Queue Worker Definitions (YAML)¶

Optional

YAML-based queue definitions are optional. In most cases, queues are created and managed after startup using the CLI (runqy config create) or the monitoring dashboard GUI.

YAML files in the deployment/ directory (or a custom directory specified with --config) allow you to pre-configure queues so that a fresh server starts with all queues already set up — useful for automated deployments or spinning up new environments.

queues:
  inference:
    priority: 6
    mode: long_running  # or one_shot
    deployment:
      git_url: "https://github.com/example/repo.git"
      branch: "main"
      startup_cmd: "python main.py"
      startup_timeout_secs: 300
      requirements_file: "requirements.txt"  # Optional

  simple:
    priority: 3
    mode: one_shot
    deployment:
      git_url: "https://github.com/example/simple-tasks.git"
      branch: "main"
      startup_cmd: "python task.py"
      startup_timeout_secs: 60

Queue Options¶

Option	Type	Required	Description
`priority`	int	Yes	Queue priority (higher = more important)
`mode`	string	No	Execution mode: `long_running` (default) or `one_shot`
`deployment`	object	Yes	Deployment configuration

Deployment Options¶

Option	Type	Required	Description
`git_url`	string	Yes	Git repository URL for task code
`branch`	string	Yes	Git branch to clone
`code_path`	string	No	Path of the task code within the repository (e.g., `simple-task`)
`startup_cmd`	string	Yes	Command to start the Python process
`startup_timeout_secs`	int	Yes	Timeout for process startup
`requirements_file`	string	No	Path to requirements.txt (default: `requirements.txt`)
`vaults`	list	No	List of vault names to inject as environment variables
`redis_storage`	bool	No	If `true`, task results are written to Redis. If `false`, results are not stored in Redis and must be managed by the task itself (e.g., via webhook). Default: `false`
`git_token`	string	No	Path to your github PAT's. Use the following format `vault://{VAULT-NAME}/{KEY}` (e.g., `vault://github_pats/SIMPLE_TASK`)

Sub-Queues¶

Sub-queues allow you to assign different priorities to the same task type based on the caller's tier or urgency. This is useful when multiple clients submit identical tasks but require different service levels.

Use Case: Paid vs Free Users¶

A common pattern is routing tasks from paid users to a high-priority sub-queue while free users go to a lower-priority sub-queue:

queues:
  inference:
    sub_queues:
      - name: premium    # Paid users — processed first
        priority: 10
      - name: standard   # Free users — processed when premium queue is empty
        priority: 3
    deployment:
      git_url: "https://github.com/example/inference.git"
      branch: "main"
      startup_cmd: "python main.py"
      startup_timeout_secs: 300

Your API backend then routes tasks based on user tier:

# In your API backend
if user.is_premium:
    client.enqueue("inference.premium", payload)
else:
    client.enqueue("inference.standard", payload)

Both sub-queues run the same task code (same deployment), but workers prioritize inference.premium tasks over inference.standard tasks.

Naming Format¶

Queues use the format {parent}.{sub_queue}:

inference.premium — High priority inference tasks
inference.standard — Standard priority inference tasks
simple.default — Default simple tasks

Workers register for a parent queue and can process tasks from any of its sub-queues based on priority.

Queue Creation Behavior¶

When you define a queue in the configuration, the sub-queues created depend on whether you explicitly define them:

Configuration	Sub-queues created
No `sub_queues` defined	`.default` is created automatically
`sub_queues` explicitly defined	Only the listed sub-queues are created (NO `.default`)

Example 1: No sub-queues → .default is created

queues:
  myqueue:
    deployment: ...
# Creates: myqueue.default

Example 2: Explicit sub-queues → only those are created

queues:
  myqueue:
    sub_queues:
      - name: high
        priority: 10
      - name: low
        priority: 3
    deployment: ...
# Creates: myqueue.high, myqueue.low
# Does NOT create: myqueue.default

Fallback to .default may fail

If you reference myqueue (without sub-queue suffix) and .default doesn't exist (because you defined explicit sub-queues), the operation will fail. Always use the full queue name when sub-queues are explicitly defined.

Automatic Default Fallback¶

When a queue name is referenced without a sub-queue suffix, runqy automatically appends .default:

You provide	Resolves to
`inference`	`inference.default`
`simple`	`simple.default`
`inference.high`	`inference.high` (unchanged)

This applies to:

Workers: When a worker registers for queue inference, it actually registers for inference.default
Task enqueueing: When you enqueue a task to inference, it goes to inference.default
Task retrieval: When you query queue inference, it looks up inference.default

Queue must exist

If the resolved queue (e.g., inference.default) doesn't exist in the configuration, an error is returned. The fallback only adds the .default suffix—it doesn't create the queue automatically.

Monitoring¶

Environment Variables¶

Variable	Required	Description
`PROMETHEUS_ADDRESS`	No	Prometheus server URL (e.g., `http://localhost:9090`). Enables time-series charts in the dashboard. If not set, the dashboard uses Redis-based historical data.

The server always exposes Prometheus metrics at /metrics regardless of this setting. See the Monitoring Guide for full setup instructions including dashboard authentication.

Vaults¶

Vaults provide secure storage for secrets that are injected into workers as environment variables.

Environment Variables¶

Variable	Required	Description
`RUNQY_VAULT_MASTER_KEY`	No	Base64-encoded 32-byte key for encrypting vault entries. If not set, the vaults feature is disabled.

Generating a Master Key¶

# Generate a secure 256-bit key
openssl rand -base64 32
# Output: YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=

# Set as environment variable
export RUNQY_VAULT_MASTER_KEY="YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY="

Using Vaults in Queue Configuration¶

queues:
  inference:
    priority: 6
    deployment:
      git_url: "https://github.com/example/repo.git"
      branch: "main"
      startup_cmd: "python main.py"
      startup_timeout_secs: 300
      vaults:
        - api-keys
        - model-credentials

When a worker registers for this queue, all entries from the specified vaults are decrypted and sent to the worker. The worker then injects them as environment variables before starting the Python process.

Accessing Secrets in Python¶

import os

# Access vault entries as environment variables
openai_key = os.environ.get("OPENAI_API_KEY")
hf_token = os.environ.get("HF_TOKEN")

Security Note

Vault entries are transmitted to workers during bootstrap. Ensure workers are running in a trusted environment and the connection to the server is secured (HTTPS).

Server Configuration¶

Configuration Methods¶

1. Environment Variables (.env.secret file)¶

2. CLI Flags¶

3. Priority Order¶

Environment Variables Reference¶

Server¶

Redis¶

PostgreSQL¶

SQLite (alternative to PostgreSQL)¶

Monitoring & Security¶

Additional Server Flags¶

Queue Worker Definitions (YAML)¶

Queue Options¶

Deployment Options¶

Sub-Queues¶

Use Case: Paid vs Free Users¶

Naming Format¶

Queue Creation Behavior¶

Automatic Default Fallback¶

Monitoring¶

Environment Variables¶

Vaults¶

Environment Variables¶

Generating a Master Key¶

Using Vaults in Queue Configuration¶

Accessing Secrets in Python¶

1. Environment Variables (`.env.secret` file)¶