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Uniform Workload Identity Everywhere: SPIRE Integrations and Extensibility Ryan Turner, Uber
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Uniform Workload Identity Everywhere - SPIRE Integrations and Extensibility
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- 1 Uniform Workload Identity Everywhere: SPIRE Integrations and Extensibility Ryan Turner, Uber
- 2 Common Integration Challenges Virtual • Using multiple environments - public and/or private clouds • Proprietary tooling and infrastructure Mix of legacy and cloud-native applications • Enforcing uni…
- 3 Open-source implementation of SPIFFE specification • Control plane for identity distribution/rotation • Scalable distributed system
- 4 Controlling select functionality and security properties Consumption of SPIRE-issued identity Downstream integrations Simplifying propagation of SVIDs Using SVID as authentication material for extern…
- 5 Applies to: Server • Synchronizes upstream PKI chain/keys with SPIRE • Handles CSRs for SPIRE CA Optionally accepts SPIRE JWT signing keys Available built-in plugins
- 6 Applies to: Server, Agent • Authenticates a node (physical or virtual) in the infrastructure • Challenge-response protocol Defines bridge of trust between host identity system and SPIRE • Built-in pl…
- 7 Selectors can be based on host metadata or be static • Enables distribution of identities to more finely-grained subsets of hosts Alias registration entries matching node selectors can be used to
- 8 WorkloadAttestor Applies to: Agent Interrogates trusted system for attributes of process • Matches workload metadata to selectors of identity registrations • Example authorities: OS kernel, orchestra…
- 9 Private key generation Computes digital signatures of data Built-in plugins
- 10 Plugin interfaces defined in proto/spire/agent, server /* Implement respective plugin interface Add HCL config stanza for respective component(s) (Server and/or Agent) Example for custom NodeAttestor…
- 11 Envoy DMTLS using X.509 SVIDs SPIRE Workload API implements Envoy SDS • OIDC Federation Authenticate to external services with SVIDS Example using a JWT-SVID to invoke AWS APIs
- 12 Agentless mode Enables serverless use cases • Integration with Apache data projects
