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> Use this file to discover all available pages before exploring further.
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# Distributed Execution
Scale scanning across multiple machines using Redis coordination.
## Architecture
```
+-----------------+ +-----------------+
| Master | | Redis |
| (API Server) |---->| (Task Queue) |
+-----------------+ +--------+--------+
|
+------------------------+------------------------+
| | |
v v v
+---------------+ +---------------+ +---------------+
| Worker 1 | | Worker 2 | | Worker N |
+---------------+ +---------------+ +---------------+
```
## Components
### Master Node
* API server for submitting tasks
* Task distribution coordinator
* Result aggregation
* Worker health monitoring
### Workers
* Execute assigned tasks
* Report progress and results
* Auto-reconnect on failure
* Heartbeat to master
* Worker ID format: `wosm-` (e.g. `wosm-a1b2c3d4`)
* Default alias: `wosm-` or `wosm-` when no `--alias` is provided
### Redis
* Task queue storage
* Worker registration
* Result storage
* Pub/Sub for events
## Setup
### 0. Start Redis if you don't have one
```bash theme={null}
# Docker
docker run -d -p 6379:6379 redis:7-alpine
# With persistence
docker run -d -p 6379:6379 \
-v redis-data:/data \
redis:7-alpine redis-server --appendonly yes
# then test connection at localhost:6379
```
### 1. Start Master Node
```bash theme={null}
## Configure Redis connection
osmedeus config set redis.host 127.0.0.1
osmedeus config set redis.port 6379
osmedeus server --master
```
Or with custom Redis:
```bash theme={null}
osmedeus server --master --redis-url redis://redis-host:6379
```
You can also run the worker node without the master mode with REST server API, provided they can connect to the same Redis instance.
However, the results won't be aggregated in the master API and you have to run the scan manually via CLI.
### 2. Start Workers Node
```bash theme={null}
osmedeus worker join --redis-url redis://host.docker.internal:6379
```
With public IP detection (used for default alias and SSH routing):
```bash theme={null}
osmedeus worker join --redis-url redis://host.docker.internal:6379 --get-public-ip
```
With a custom alias:
```bash theme={null}
osmedeus worker join --redis-url redis://host.docker.internal:6379 --alias my-worker
```
Or if master is on localhost:
```bash theme={null}
## Configure Redis connection
osmedeus config set redis.host 127.0.0.1
osmedeus config set redis.port 6379
osmedeus worker join
```
### 3. Submit Tasks & Listing Workers
```bash theme={null}
# Via CLI
osmedeus run --distributed-run -f general -t hackerone.com
# Via API
curl -X POST http://master:8002/osm/api/runs \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-d '{"flow": "general", "target": "example.com", "distributed": true}'
# List workers (use --json for json output)
osmedeus worker ls
```
### 4. Running Utility Scripts on Master/Worker Nodes (Optional)
```bash theme={null}
# run this on the master node to execute the command on all worker nodes
osmedeus eval "run_on_worker('all', 'bash', 'touch /tmp/on-worker')" --redis-url redis://host.docker.internal:6379
## run this on the worker node to execute the command on the master node
osmedeus worker --redis-url redis://host.docker.internal:6379 eval "run_on_master('bash', 'touch /tmp/on-master')"
```
***
## Task Distribution
### Task Lifecycle
```
1. Client submits task to master
2. Master queues task in Redis
3. Available worker claims task
4. Worker executes workflow
5. Worker reports progress/results
6. Master aggregates results
7. Results available via API
```
### Load Balancing
Tasks are distributed using a pull model:
* Workers poll for available tasks
* First available worker claims task
* No central scheduling required
### Task Priority
(Future feature) Tasks can have priority levels:
* High: Security-critical scans
* Normal: Regular assessments
* Low: Background enumeration
## Monitoring
### Worker Status
```bash theme={null}
# CLI
osmedeus worker status
# API
curl http://master:8002/osm/api/workers \
-H "Authorization: Bearer $TOKEN"
```
### Task Status
```bash theme={null}
# List tasks
curl http://master:8002/osm/api/tasks \
-H "Authorization: Bearer $TOKEN"
# Get task details
curl http://master:8002/osm/api/tasks/task-123 \
-H "Authorization: Bearer $TOKEN"
```
## Remote Monitoring
Use the `client` command to monitor distributed runs from any machine:
```bash theme={null}
# Set connection details
export OSM_REMOTE_URL=http://master:8080
export OSM_REMOTE_AUTH_KEY=your-api-key
# Monitor runs
osmedeus client fetch -t runs --status running --refresh 5s
# Check step results for a specific run
osmedeus client fetch -t step_results --workspace example_com
# View vulnerabilities
osmedeus client fetch -t vulnerabilities --severity critical
```
## Docker Compose Setup
```yaml theme={null}
services:
redis:
image: redis:7-alpine
container_name: osm-e2e-redis
ports:
- "6399:6379"
command: redis-server --appendonly yes --maxmemory 256mb --maxmemory-policy allkeys-lru
healthcheck:
test: ["CMD", "redis-cli", "ping"]
interval: 5s
timeout: 3s
retries: 10
networks:
- osm-e2e-network
master:
build:
context: ../..
dockerfile: build/docker/Dockerfile
image: osmedeus:e2e
container_name: osm-e2e-master
ports:
- "8002:8002"
volumes:
- workspaces:/root/workspaces-osmedeus
depends_on:
redis:
condition: service_healthy
command: ["serve", "--master", "--redis-url", "redis://redis:6379", "-A"]
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:8002/health"]
interval: 10s
timeout: 5s
start_period: 10s
retries: 5
networks:
- osm-e2e-network
worker:
image: osmedeus:e2e
container_name: osm-e2e-worker
volumes:
- workspaces:/root/workspaces-osmedeus
depends_on:
redis:
condition: service_healthy
master:
condition: service_healthy
command: ["worker", "join", "--redis-url", "redis://redis:6379"]
networks:
- osm-e2e-network
volumes:
workspaces:
driver: local
networks:
osm-e2e-network:
driver: bridge
```
Run:
```bash theme={null}
# Distributed E2E stack: Redis + master + worker
# Usage:
make distributed-e2e-up # Build image + start stack + wait for health
make distributed-e2e-run # Submit scan + tail worker logs
make distributed-e2e-down # Tear down everything
```
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