feat(auth): add approle auth method

go.mod

@@ -4,7 +4,7 @@ go 1.21
 
 require (
 	github.com/hashicorp/vault-plugin-auth-jwt v0.16.0
-	github.com/hashicorp/vault/api v1.9.2
+	github.com/hashicorp/vault/api v1.15.0
 	github.com/hashicorp/vault/api/auth/kubernetes v0.4.1
 	github.com/influxdata/influxdb1-client v0.0.0-20220302092344-a9ab5670611c
 	github.com/mitchellh/mapstructure v1.5.0
@@ -21,13 +21,15 @@ require (
 	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v3 v3.2.2 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/coreos/go-oidc/v3 v3.6.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fatih/color v1.16.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.3 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.1 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
@@ -55,6 +57,7 @@ require (
 	github.com/hashicorp/go-version v1.6.0 // indirect
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
 	github.com/hashicorp/hcl v1.0.1-vault-5 // indirect
+	github.com/hashicorp/vault/api/auth/approle v0.8.0 // indirect
 	github.com/hashicorp/vault/sdk v0.9.2 // indirect
 	github.com/hashicorp/yamux v0.1.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
@@ -85,11 +88,11 @@ require (
 	github.com/subosito/gotenv v1.6.0 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
-	golang.org/x/crypto v0.21.0 // indirect
-	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
 	golang.org/x/oauth2 v0.11.0 // indirect
 	golang.org/x/sys v0.20.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
 	google.golang.org/api v0.138.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d // indirect

go.sum

@@ -61,6 +61,8 @@ github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kB
 github.com/cenkalti/backoff/v3 v3.0.0/go.mod h1:cIeZDE3IrqwwJl6VUwCN6trj1oXrTS4rc0ij+ULvLYs=
 github.com/cenkalti/backoff/v3 v3.2.2 h1:cfUAAO3yvKMYKPrvhDuHSwQnhZNk/RMHKdZqKTxfm6M=
 github.com/cenkalti/backoff/v3 v3.2.2/go.mod h1:cIeZDE3IrqwwJl6VUwCN6trj1oXrTS4rc0ij+ULvLYs=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
@@ -111,6 +113,8 @@ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2
 github.com/go-jose/go-jose/v3 v3.0.0/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8=
 github.com/go-jose/go-jose/v3 v3.0.3 h1:fFKWeig/irsp7XD2zBxvnmA/XaRWp5V3CBsZXJF7G7k=
 github.com/go-jose/go-jose/v3 v3.0.3/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
+github.com/go-jose/go-jose/v4 v4.0.1 h1:QVEPDE3OluqXBQZDcnNvQrInro2h0e4eqNbnZSWqS6U=
+github.com/go-jose/go-jose/v4 v4.0.1/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
@@ -257,6 +261,10 @@ github.com/hashicorp/vault-plugin-auth-jwt v0.16.0 h1:BUk03WDSGZuB+kEq3HTOQ7ecEH
 github.com/hashicorp/vault-plugin-auth-jwt v0.16.0/go.mod h1:Ve3r228afZOShwNvp+MGEKtm+ROskv10GG7bMXZb5OA=
 github.com/hashicorp/vault/api v1.9.2 h1:YjkZLJ7K3inKgMZ0wzCU9OHqc+UqMQyXsPXnf3Cl2as=
 github.com/hashicorp/vault/api v1.9.2/go.mod h1:jo5Y/ET+hNyz+JnKDt8XLAdKs+AM0G5W0Vp1IrFI8N8=
+github.com/hashicorp/vault/api v1.15.0 h1:O24FYQCWwhwKnF7CuSqP30S51rTV7vz1iACXE/pj5DA=
+github.com/hashicorp/vault/api v1.15.0/go.mod h1:+5YTO09JGn0u+b6ySD/LLVf8WkJCPLAL2Vkmrn2+CM8=
+github.com/hashicorp/vault/api/auth/approle v0.8.0 h1:FuVtWZ0xD6+wz1x0l5s0b4852RmVXQNEiKhVXt6lfQY=
+github.com/hashicorp/vault/api/auth/approle v0.8.0/go.mod h1:NV7O9r5JUtNdVnqVZeMHva81AIdpG0WoIQohNt1VCPM=
 github.com/hashicorp/vault/api/auth/kubernetes v0.4.1 h1:amFWL1ZhwMWdmqvT51J9phXu835kY25wFfTrY/3yXd0=
 github.com/hashicorp/vault/api/auth/kubernetes v0.4.1/go.mod h1:ikWDT8Adnfvm+8DzKez50vvLD9GWD/unZfJxeqP09sU=
 github.com/hashicorp/vault/sdk v0.9.2 h1:H1kitfl1rG2SHbeGEyvhEqmIjVKE3E6c2q3ViKOs6HA=
@@ -440,6 +448,8 @@ golang.org/x/crypto v0.6.0/go.mod h1:OFC/31mSvZgRz0V1QTNCzfAI1aIRzbiufJtkMIlEp58
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
 golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
 golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -516,6 +526,8 @@ golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs=
 golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
+golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
+golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -615,6 +627,8 @@ golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
+golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=

pkg/vault/client.go

@@ -10,6 +10,7 @@ import (
 	"github.com/aarnaud/vault-pki-exporter/pkg/logger"
 	jwtauth "github.com/hashicorp/vault-plugin-auth-jwt"
 	vaultapi "github.com/hashicorp/vault/api"
+	"github.com/hashicorp/vault/api/auth/approle"
 	"github.com/hashicorp/vault/api/auth/kubernetes"
 	"github.com/mitchellh/mapstructure"
 )
@@ -60,6 +61,8 @@ func (vault *ClientWrapper) Init() {
 			vault.authOIDC()
 		case "k8s":
 			vault.authK8S()
+		case "approle":
+			vault.authApprole()
 		}
 	}
 
@@ -225,3 +228,17 @@ func (vault *ClientWrapper) authK8S() {
 		logger.SlogFatal("Failed to auth with k8s", err)
 	}
 }
+
+func (vault *ClientWrapper) authApprole() {
+	mount := os.Getenv("VAULT_AUTH_MOUNT")
+	if mount == "" {
+		mount = "approle"
+	}
+	am, err := approle.NewAppRoleAuth(os.Getenv("VAULT_ROLE_ID"), &approle.SecretID{FromEnv: "VAULT_SECRET_ID"}, approle.WithMountPath(mount))
+	if err != nil {
+		logger.SlogFatal("Failed to create approle auth method", err)
+	}
+	if _, err := vault.Client.Auth().Login(context.Background(), am); err != nil {
+		logger.SlogFatal("Failed to auth with approle", err)
+	}
+}