etcd-adapter

ETCD adapter is the policy storage adapter for Casbin. With this library, Casbin can load policy from ETCD and save policy to it. ETCD adapter support the Auto-Save feature for Casbin policy. This means it can support adding a single policy rule to the storage, or removing a single policy rule from the storage.

Installation

go get github.com/sebastianliu/etcd-adapter

Sample Example

package main
import (
    "github.com/sebastianliu/etcd-adapter"
    "github.com/casbin/casbin"
)
func main() {
    // Initialize a casbin etcd adapter and use it in a Casbin enforcer:
    // The adapter will use the ETCD and a named path with the key you give.
    // If not provided, the adapter will try to use the default value casbin_policy.
    // If you have namespace to distinguish keys in your etcd, you can use your_namespace/casbin_root_path
    a := etcdadapter.NewAdapter([]string{"http://127.0.0.1:2379"}, "casbin_policy_test") // Your etcd endpoints and the path key.
    e := casbin.NewEnforcer("rbac_model.conf", a)
    // Load the policy from ETCD.
    e.LoadPolicy()
    // Check the permission.
    e.Enforce("alice", "data1", "read")
    // Modify the policy.
    // e.AddPolicy(...)
    // e.RemovePolicy(...)
    // Save the policy back to DB.
    e.SavePolicy()
}