Added support for AWS IAM Auth Method.

CHANGELOG.md

@@ -1,5 +1,10 @@
 ## Unreleased
 
+FEATURES:
+
+* Added support for AWS IAM Auth type.
+
+
 CHANGES:
 
 * Test with K8s 1.27-1.31

README.md

@@ -44,6 +44,8 @@ full details of deploying, configuring and using Vault CSI provider. The
 integration tests in [test/bats/provider.bats](./test/bats/provider.bats) also
 provide a good set of fully worked and tested examples to build on.
 
+For details on different SecretProviderClass configurations, see [examples](./examples).
+
 ## Troubleshooting
 
 To troubleshoot issues with Vault CSI provider, look at logs from the Vault CSI

examples/SecretProviderClassExample1.md

@@ -0,0 +1,25 @@
+Below is an example for a SecretProviderClass for Vault with Kubernetes auth method.
+
+```yaml
+apiVersion: v1
+items:
+- apiVersion: secrets-store.csi.x-k8s.io/v1
+  kind: SecretProviderClass
+  metadata:
+    name: vault-foo
+    namespace: default
+  spec:
+    parameters:
+      auth: |- # This block is optional. If this block is not specified, the default auth method is kubernetes
+        type: kubernetes # Auth method type
+        mouthPath: kubernetes # Mount path for Kubernetes auth method. Defaults to kubernetes if not specified.
+      objects: |
+        - secretPath: "secret/web-app"
+          objectName: "creds"
+          secretKey: "api-token"
+      roleName: secret-store-csi-test # Vault Role Name
+      vaultAddress: https://vault.address:8200
+    provider: vault
+  resourceVersion: ""
+
+```

examples/SecretProviderClassExample2.md

@@ -0,0 +1,29 @@
+Below is an example for a SecretProviderClass for Vault with AWS IAM auth method.
+
+```yaml
+apiVersion: v1
+items:
+- apiVersion: secrets-store.csi.x-k8s.io/v1
+  kind: SecretProviderClass
+  metadata:
+    name: vault-foo
+    namespace: default
+  spec:
+    parameters:
+      auth: |- # This block is optional. If this block is not specified, the default auth method is kubernetes
+        type: aws # Auth method type
+        mouthPath: aws # Mount path for AWS auth method. Defaults to aws if not specified.
+        aws:
+          region: us-east-1 # AWS Region
+          awsIAMRole: secrets-store-inline-irsa-role # AWS IAM Role
+          xVaultAWSIAMServerID: vault.example.com # Vault AWS IAM Server ID. More info: https://www.vaultproject.io/docs/auth/aws#server-id
+      objects: |
+        - secretPath: "secret/web-app"
+          objectName: "creds"
+          secretKey: "api-token"
+      roleName: secret-store-csi-test # Vault Role Name
+      vaultAddress: https://vault.address:8200
+    provider: vault
+  resourceVersion: ""
+
+```

go.mod

@@ -3,7 +3,10 @@ module github.com/hashicorp/vault-csi-provider
 go 1.22.0
 
 require (
+	github.com/aws/aws-sdk-go v1.55.5
+	github.com/golang-jwt/jwt/v4 v4.5.1
 	github.com/hashicorp/go-hclog v1.6.3
+	github.com/hashicorp/go-secure-stdlib/awsutil v0.3.0
 	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/hashicorp/vault/api v1.15.0
 	github.com/stretchr/testify v1.9.0
@@ -42,6 +45,7 @@ require (
 	github.com/hashicorp/go-secure-stdlib/strutil v0.1.2 // indirect
 	github.com/hashicorp/go-sockaddr v1.0.2 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect

go.sum

@@ -1,4 +1,7 @@
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/aws/aws-sdk-go v1.34.0/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
+github.com/aws/aws-sdk-go v1.55.5 h1:KKUZBfBoyqy5d3swXyiC7Q76ic40rYcbqH7qjh59kzU=
+github.com/aws/aws-sdk-go v1.55.5/go.mod h1:eRwEWoyTWFMVYVQzKMNHWP5/RV4xIUGMQfXQHfHkpNU=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
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 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
@@ -26,12 +29,15 @@ github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En
 github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
 github.com/go-openapi/swag v0.22.4 h1:QLMzNJnMGPRNDCbySlcj1x01tzU8/9LTTL9hZZZogBU=
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+github.com/golang-jwt/jwt/v4 v4.5.1 h1:JdqV9zKUdtaa9gdPlywC3aeoEsR681PlKC+4F5gQgeo=
+github.com/golang-jwt/jwt/v4 v4.5.1/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
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 github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I=
@@ -51,6 +57,7 @@ github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY
 github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
 github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
 github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
+github.com/hashicorp/go-hclog v1.5.0/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
 github.com/hashicorp/go-hclog v1.6.3 h1:Qr2kF+eVWjTiYmU7Y31tYlP1h0q/X3Nl3tPGdaB11/k=
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@@ -60,6 +67,8 @@ github.com/hashicorp/go-retryablehttp v0.7.7 h1:C8hUCYzor8PIfXHa4UrZkU4VvK8o9ISH
 github.com/hashicorp/go-retryablehttp v0.7.7/go.mod h1:pkQpWZeYWskR+D1tR2O5OcBFOxfA7DoAO6xtkuQnHTk=
 github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
 github.com/hashicorp/go-rootcerts v1.0.2/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
+github.com/hashicorp/go-secure-stdlib/awsutil v0.3.0 h1:I8bynUKMh9I7JdwtW9voJ0xmHvBpxQtLjrMFDYmhOxY=
+github.com/hashicorp/go-secure-stdlib/awsutil v0.3.0/go.mod h1:oKHSQs4ivIfZ3fbXGQOop1XuDfdSb8RIsWTGaAanSfg=
 github.com/hashicorp/go-secure-stdlib/parseutil v0.1.6 h1:om4Al8Oy7kCm/B86rLCLah4Dt5Aa0Fr5rYBG60OzwHQ=
 github.com/hashicorp/go-secure-stdlib/parseutil v0.1.6/go.mod h1:QmrqtbKuxxSWTN3ETMPuB+VtEiBJ/A9XhoYGv8E1uD8=
 github.com/hashicorp/go-secure-stdlib/strutil v0.1.1/go.mod h1:gKOamz3EwoIoJq7mlMIRBpVTAUn8qPCrEclOKKWhD3U=
@@ -73,13 +82,20 @@ github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
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 github.com/hashicorp/vault/api v1.15.0/go.mod h1:+5YTO09JGn0u+b6ySD/LLVf8WkJCPLAL2Vkmrn2+CM8=
+github.com/jmespath/go-jmespath v0.3.0/go.mod h1:9QtRXoHjLGCJ5IBSaohpXITPlowMeeYCZ7fLUTSywik=
+github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9YPoQUg=
+github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
+github.com/jmespath/go-jmespath/internal/testify v1.5.1 h1:shLQSRRSCCPj3f2gpwzGwWFoC7ycTf1rcQZHOlsJ6N8=
+github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
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+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
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@@ -124,6 +140,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
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@@ -135,11 +152,13 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
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@@ -155,6 +174,7 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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@@ -202,12 +222,15 @@ google.golang.org/grpc v1.67.1/go.mod h1:1gLDyUQU7CTLJI90u3nXZ9ekeghjeM7pTDZlqFN
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internal/auth/auth.go

@@ -0,0 +1,23 @@
+package auth
+
+import (
+	"context"
+	"github.com/hashicorp/go-hclog"
+	"github.com/hashicorp/vault-csi-provider/internal/config"
+	"k8s.io/client-go/kubernetes"
+)
+
+type Auth interface {
+	AuthRequest(context.Context) (string, map[string]any, map[string]string, error)
+}
+
+func NewAuth(logger hclog.Logger, k8sClient kubernetes.Interface, params config.Parameters, defaultMountPath string) (Auth, error) {
+	if params.VaultAuth.Type == "kubernetes" || params.VaultAuth.Type == "jwt" {
+		return newKubernetesJWTAuth(logger, k8sClient, params, defaultMountPath)
+	}
+	if params.VaultAuth.Type == "aws" {
+		return newAWSIAMAuth(logger, k8sClient, params, defaultMountPath)
+	}
+	// Default to Kubernetes
+	return newKubernetesJWTAuth(logger, k8sClient, params, defaultMountPath)
+}