Podium uses S3 as a shared deployment registry, enabling on-demand agent deployment across a distributed coordinator cluster.

​
S3 Bucket Structure

s3://podium-deployment-registry/
  {environment}/
    deployments/
      {agent_type}/
        {version}/
          {agent_type}-{version}.tar.gz
Example: 
s3://podium-prod/
  production/
    deployments/
      claude-agent/
        1.0.0/
          claude-agent-1.0.0.tar.gz
      gpt-agent/
        2.5.0/
          gpt-agent-2.5.0.tar.gz

​
Deployment ID Format

{agent_type}:{version}@{hash_prefix}
Example: claude-agent:1.0.0@2b795103
  • agent_type: Agent category
  • version: Semantic version
  • hash_prefix: First 8 chars of SHA256 (content-addressable)

​
On-Demand Deployment

When a coordinator receives an instance creation request for a deployment it doesn’t have locally: 
pub async fn ensure_deployment(agent_type: &str, version: &str) -> Result<PathBuf> {
    let version_path = self.get_agent_version_path(agent_type, version);

    // Fast path: deployment exists locally
    if version_path.exists() {
        return Ok(version_path);
    }

    // On-demand path: download from S3 registry
    if self.s3_configured() {
        self.download_deployment_from_s3(agent_type, version).await?;
        return Ok(version_path);
    }

    Err("Deployment not found locally and S3 not configured")
}
Key properties:
  • Lazy deployment: Only download when an instance is requested
  • Local caching: Already-deployed agents use the local copy
  • Consistency: All coordinators deploy from the same S3 source
  • Checksum verification: SHA256 integrity check on download

​
S3 Client Configuration

Supports both AWS S3 and MinIO: 
let s3_client = if let Ok(endpoint_url) = std::env::var("AWS_ENDPOINT_URL") {
    // MinIO configuration
    let s3_config = aws_sdk_s3::config::Builder::from(&config)
        .endpoint_url(endpoint_url)
        .force_path_style(true)  // Required for MinIO
        .build();
    S3Client::from_conf(s3_config)
} else {
    // Standard AWS S3
    S3Client::new(&config)
};

​
Upload Flow

Developer/CI
     │
     │ tar.gz bundle (multipart upload)
     ▼
Gateway POST /api/v1/deployments
     │
     ├── Compute SHA256 checksum
     ├── Upload to S3: {env}/deployments/{type}/{version}/{bundle}
     ├── Generate deployment_id
     ├── Forward to coordinator: POST /deploy/agent
     │
     └── Return deployment_id to client