mirror of https://github.com/hashicorp/consul
36 lines
1.2 KiB
Markdown
36 lines
1.2 KiB
Markdown
# ACL
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This section is a work in progress.
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The ACL subsystem is responsible for authenticating and authorizing access to Consul
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operations ([HTTP API], and [RPC]).
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[HTTP API]: ../http-api
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[RPC]: ../rpc
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## ACL Entities
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There are many entities in the ACL subsystem. The diagram below shows the relationship
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between the entities.
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<sup>[source](./erd.mmd)</sup>
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ACL Tokens are at the center of the ACL system. Tokens are associated with a set of
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Policies, and Roles.
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AuthMethods, which consist of BindingRules, are a mechanism for creating ACL Tokens from
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policies stored in external systems (ex: kubernetes, JWT, or OIDC).
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Roles are a set of policies associated with a named role, and ServiceIdentity and
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NodeIdentity are policy templates that are associated with a specific service or node and
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can be rendered into a full policy.
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Each Policy contains a set of rules. Each rule relates to a specific resource, and
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includes an AccessLevel (read, write, list or deny).
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An ACL Token can be resolved into an Authorizer. The Authorizer is what is used by the
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[HTTP API], and [RPC] endpoints to determine if an operation is allowed or forbidden (the
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enforcement decision).
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