Merge pull request 'Initial Terraform provider for the NetBox token engine' (#1) from benvin/netbox-provider into main

Reviewed-on: #1

.gitignore

@@ -0,0 +1,10 @@
+/terraform-provider-vault-secrets-netbox
+*.zip
+*.out
+*.test
+dist/
+.terraform/
+.terraform.lock.hcl
+*.tfstate
+*.tfstate.backup
+.env

.pre-commit-config.yaml

@@ -0,0 +1,15 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-added-large-files
+
+  - repo: https://github.com/dnephin/pre-commit-golang
+    rev: v0.5.1
+    hooks:
+      - id: go-fmt
+      - id: go-vet
+      - id: go-mod-tidy

.woodpecker/build.yml

@@ -0,0 +1,18 @@
+when:
+  - event: pull_request
+
+steps:
+  - name: build
+    image: golang:1.25
+    commands:
+      - make build
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2

.woodpecker/pre-commit.yaml

@@ -0,0 +1,18 @@
+when:
+  - event: pull_request
+
+steps:
+  - name: pre-commit
+    image: git.unkin.net/unkin/almalinux9-gobuilder:20260606
+    commands:
+      - uvx pre-commit run --all-files
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2

.woodpecker/release.yml

@@ -0,0 +1,40 @@
+when:
+  - event: tag
+
+steps:
+  - name: package
+    image: git.unkin.net/unkin/almalinux9-gobuilder:20260606
+    commands:
+      - make package VERSION=${CI_COMMIT_TAG}
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2
+
+  - name: upload
+    image: git.unkin.net/unkin/almalinux9-base:20260606
+    commands:
+      - |
+        VERSION=$$(echo ${CI_COMMIT_TAG} | sed 's/^v//')
+        FILE="terraform-provider-vault-secrets-netbox_$${VERSION}_linux_amd64.zip"
+        curl -f -X PUT \
+          "https://artifactapi.k8s.syd1.au.unkin.net/api/v2/remotes/terraform-unkin/files/unkin/vault-secrets-netbox/$${FILE}" \
+          -H "Content-Type: application/zip" \
+          --data-binary @"$${FILE}"
+    depends_on: [package]
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 128Mi
+            cpu: 100m
+          limits:
+            memory: 512Mi
+            cpu: 500m

.woodpecker/test.yml

@@ -0,0 +1,33 @@
+when:
+  - event: pull_request
+
+steps:
+  - name: lint
+    image: golang:1.25
+    commands:
+      - make lint
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2
+
+  - name: test
+    image: golang:1.25
+    commands:
+      - make test
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2

Makefile

@@ -0,0 +1,61 @@
+.PHONY: build install test lint fmt clean tidy package patch minor major check-go
+
+BINARY := terraform-provider-vault-secrets-netbox
+VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo "0.0.0-dev")
+OS_ARCH := linux_amd64
+INSTALL_VERSION := $(shell echo $(VERSION) | sed 's/^v//')
+INSTALL_DIR := ~/.terraform.d/plugins/git.unkin.net/unkin/vault-secrets-netbox/$(INSTALL_VERSION)/$(OS_ARCH)
+ZIP := $(BINARY)_$(INSTALL_VERSION)_$(OS_ARCH).zip
+
+GO_VERSION_REQUIRED := 1.25
+GO_VERSION_ACTUAL := $(shell go version | sed 's/go version go\([0-9]*\.[0-9]*\).*/\1/')
+
+check-go:
+	@if [ "$$(printf '%s\n%s' "$(GO_VERSION_REQUIRED)" "$(GO_VERSION_ACTUAL)" | sort -V | head -1)" != "$(GO_VERSION_REQUIRED)" ]; then \
+		echo "ERROR: Go >= $(GO_VERSION_REQUIRED) required, found $(GO_VERSION_ACTUAL)"; exit 1; \
+	fi
+
+build: check-go tidy
+	go build -ldflags="-s -w -X main.version=$(VERSION)" -o $(BINARY)
+
+install: build
+	mkdir -p $(INSTALL_DIR)
+	cp $(BINARY) $(INSTALL_DIR)/
+
+test: check-go
+	go test -race -count=1 ./...
+
+lint: check-go
+	go vet ./...
+
+fmt: check-go
+	gofmt -w .
+
+package: build
+	cp $(BINARY) $(BINARY)_v$(INSTALL_VERSION)
+	python3 -c "import zipfile,sys; z=zipfile.ZipFile(sys.argv[1],'w',zipfile.ZIP_DEFLATED); z.write(sys.argv[2]); z.close()" $(ZIP) $(BINARY)_v$(INSTALL_VERSION)
+	rm $(BINARY)_v$(INSTALL_VERSION)
+
+clean:
+	rm -f $(BINARY) *.zip
+
+tidy:
+	go mod tidy
+
+_LATEST := $(shell git tag --sort=-v:refname | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$$' | head -1)
+_BASE   := $(if $(_LATEST),$(_LATEST),v0.0.0)
+_MAJ    := $(shell echo $(_BASE) | sed 's/^v//' | cut -d. -f1)
+_MIN    := $(shell echo $(_BASE) | sed 's/^v//' | cut -d. -f2)
+_PAT    := $(shell echo $(_BASE) | sed 's/^v//' | cut -d. -f3)
+
+patch:
+	@NEW=v$(_MAJ).$(_MIN).$(shell expr $(_PAT) + 1); \
+	git tag $$NEW && echo "Tagged $$NEW" && git push origin $$NEW
+
+minor:
+	@NEW=v$(_MAJ).$(shell expr $(_MIN) + 1).0; \
+	git tag $$NEW && echo "Tagged $$NEW" && git push origin $$NEW
+
+major:
+	@NEW=v$(shell expr $(_MAJ) + 1).0.0; \
+	git tag $$NEW && echo "Tagged $$NEW" && git push origin $$NEW

README.md

@@ -1,3 +1,71 @@
 # terraform-provider-vault-secrets-netbox
 
-Terraform provider for the Vault/OpenBao NetBox token secrets engine (pairs with vault-plugin-secrets-netbox)
+Terraform / OpenTofu provider for the
+[vault-plugin-secrets-netbox](https://git.unkin.net/unkin/vault-plugin-secrets-netbox)
+secrets engine. It manages the engine's mount + connection config and its
+token-minting roles on HashiCorp Vault or OpenBao.
+
+This provider **pairs with** the `vault-plugin-secrets-netbox` plugin: the plugin
+mints the NetBox tokens; this provider declares the engine mount and roles as
+code. (Sibling providers use the `<name>vaultsecret` naming; this repo uses the
+`terraform-provider-vault-secrets-netbox` name by explicit choice.)
+
+## Provider configuration
+
+The provider talks to Vault/OpenBao (not to NetBox directly):
+
+```hcl
+terraform {
+  required_providers {
+    netbox = {
+      source  = "git.unkin.net/unkin/vault-secrets-netbox"
+      version = "0.0.1"
+    }
+  }
+}
+
+provider "netbox" {
+  # address = "https://vault.example.com"  # defaults to $VAULT_ADDR
+  # token   = "..."                         # defaults to $VAULT_TOKEN
+}
+```
+
+The local name is `netbox`, so resources are `netbox_*` even though the registry
+source type is `vault-secrets-netbox`.
+
+## Resources
+
+| Resource | Purpose |
+|----------|---------|
+| `netbox_secret_backend` | Mounts the engine and writes its config: `netbox_url`, seeded admin `token`, `token_version`, TLS options. |
+| `netbox_secret_backend_role` | A mint policy for a pre-existing NetBox service user: `netbox_user_id`/`netbox_username`, `write_enabled` (default false), `ttl`, `max_ttl`. |
+
+```hcl
+resource "netbox_secret_backend" "netbox" {
+  path       = "netbox"
+  netbox_url = "https://netbox.k8s.syd1.au.unkin.net"
+  token      = var.netbox_admin_token # sensitive; not read back
+}
+
+resource "netbox_secret_backend_role" "puppet_facts" {
+  backend         = netbox_secret_backend.netbox.path
+  name            = "puppet-facts"
+  netbox_username = "svc-puppet-facts"
+  ttl             = 3600  # 1h
+  max_ttl         = 28800 # 8h
+  # write_enabled defaults to false (read-only tokens)
+}
+```
+
+`admin_user_id` / `admin_token_id` on `netbox_secret_backend` are computed: the
+engine maintains them across `config/rotate`, so the provider never overwrites
+them. Leave `token` unset to manage the admin credential purely via rotation.
+
+## Releases
+
+Tagging `vX.Y.Z` builds `terraform-provider-vault-secrets-netbox_X.Y.Z_linux_amd64.zip`
+and uploads it to the ArtifactAPI Terraform registry (`terraform-unkin` remote,
+namespace `unkin/vault-secrets-netbox`), which serves it as a GPG-signed provider
+registry.
+
+See `examples/` for full usage.

examples/main.tf

@@ -0,0 +1,42 @@
+terraform {
+  required_providers {
+    netbox = {
+      source  = "git.unkin.net/unkin/vault-secrets-netbox"
+      version = "0.0.1"
+    }
+  }
+}
+
+provider "netbox" {
+  # address defaults to $VAULT_ADDR, token to $VAULT_TOKEN
+}
+
+variable "netbox_admin_token" {
+  type      = string
+  sensitive = true
+}
+
+resource "netbox_secret_backend" "netbox" {
+  path       = "netbox"
+  netbox_url = "https://netbox.k8s.syd1.au.unkin.net"
+  token      = var.netbox_admin_token
+}
+
+# Read-only role for Puppet fact collection.
+resource "netbox_secret_backend_role" "puppet_facts" {
+  backend         = netbox_secret_backend.netbox.path
+  name            = "puppet-facts"
+  netbox_username = "svc-puppet-facts"
+  ttl             = 3600
+  max_ttl         = 28800
+}
+
+# Write-enabled role for terraform-ipam.
+resource "netbox_secret_backend_role" "terraform_ipam" {
+  backend         = netbox_secret_backend.netbox.path
+  name            = "terraform-ipam"
+  netbox_username = "svc-terraform-ipam"
+  write_enabled   = true
+  ttl             = 1800
+  max_ttl         = 14400
+}

examples/resources/netbox_secret_backend/main.tf

@@ -0,0 +1,8 @@
+# Mount the NetBox secrets engine and seed it with an admin token.
+resource "netbox_secret_backend" "netbox" {
+  path       = "netbox"
+  netbox_url = "https://netbox.k8s.syd1.au.unkin.net"
+  token      = var.netbox_admin_token # sensitive; never read back
+
+  # token_version = 1  # set to 1 if NetBox has no API_TOKEN_PEPPERS configured
+}

examples/resources/netbox_secret_backend_role/main.tf

@@ -0,0 +1,12 @@
+# A role that mints short-lived tokens for a pre-existing NetBox service user.
+# write_enabled defaults to false, so tokens are read-only unless opted in.
+# Reading netbox/creds/puppet-facts returns a lease-bound token whose NetBox
+# expiry tracks the lease and is deleted from NetBox on revoke.
+resource "netbox_secret_backend_role" "puppet_facts" {
+  backend         = netbox_secret_backend.netbox.path
+  name            = "puppet-facts"
+  netbox_username = "svc-puppet-facts"
+  description     = "Puppet fact collection (read-only)"
+  ttl             = 3600  # 1h
+  max_ttl         = 28800 # 8h
+}

go.mod

@@ -0,0 +1,49 @@
+module git.unkin.net/unkin/terraform-provider-vault-secrets-netbox
+
+go 1.25
+
+require (
+	github.com/hashicorp/terraform-plugin-framework v1.15.0
+	github.com/hashicorp/vault/api v1.15.0
+)
+
+require (
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/fatih/color v1.16.0 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.4 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
+	github.com/hashicorp/go-hclog v1.6.3 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/go-plugin v1.6.3 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.7 // indirect
+	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
+	github.com/hashicorp/go-secure-stdlib/parseutil v0.1.6 // indirect
+	github.com/hashicorp/go-secure-stdlib/strutil v0.1.2 // indirect
+	github.com/hashicorp/go-sockaddr v1.0.2 // indirect
+	github.com/hashicorp/go-uuid v1.0.3 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/hashicorp/terraform-plugin-go v0.27.0 // indirect
+	github.com/hashicorp/terraform-plugin-log v0.9.0 // indirect
+	github.com/hashicorp/terraform-registry-address v0.2.5 // indirect
+	github.com/hashicorp/terraform-svchost v0.1.1 // indirect
+	github.com/hashicorp/yamux v0.1.1 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/oklog/run v1.0.0 // indirect
+	github.com/ryanuber/go-glob v1.0.0 // indirect
+	github.com/vmihailenco/msgpack/v5 v5.4.1 // indirect
+	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
+	golang.org/x/crypto v0.37.0 // indirect
+	golang.org/x/net v0.39.0 // indirect
+	golang.org/x/sys v0.32.0 // indirect
+	golang.org/x/text v0.24.0 // indirect
+	golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a // indirect
+	google.golang.org/grpc v1.72.1 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
+)

go.sum

@@ -0,0 +1,147 @@
+github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/bufbuild/protocompile v0.4.0 h1:LbFKd2XowZvQ/kajzguUp2DC9UEIQhIq77fZZlaQsNA=
+github.com/bufbuild/protocompile v0.4.0/go.mod h1:3v93+mbWn/v3xzN+31nwkJfrEpAUwp+BagBSZWx+TP8=
+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/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
+github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
+github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
+github.com/go-jose/go-jose/v4 v4.0.4 h1:VsjPI33J0SB9vQM6PLmNjoHqMQNGPiZ0rHL7Ni7Q6/E=
+github.com/go-jose/go-jose/v4 v4.0.4/go.mod h1:NKb5HO1EZccyMpiZNbdUw/14tiXNyUJh188dfnMCAfc=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-test/deep v1.0.2 h1:onZX1rnHT3Wv6cqNgYyFOOlgVKJrksuCMCRvJStbMYw=
+github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
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+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
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+github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
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+github.com/hashicorp/go-hclog v1.6.3 h1:Qr2kF+eVWjTiYmU7Y31tYlP1h0q/X3Nl3tPGdaB11/k=
+github.com/hashicorp/go-hclog v1.6.3/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
+github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
+github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
+github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
+github.com/hashicorp/go-plugin v1.6.3 h1:xgHB+ZUSYeuJi96WtxEjzi23uh7YQpznjGh0U0UUrwg=
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+github.com/hashicorp/go-retryablehttp v0.7.7 h1:C8hUCYzor8PIfXHa4UrZkU4VvK8o9ISHxT2Q8+VepXU=
+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/parseutil v0.1.6 h1:om4Al8Oy7kCm/B86rLCLah4Dt5Aa0Fr5rYBG60OzwHQ=
+github.com/hashicorp/go-secure-stdlib/parseutil v0.1.6/go.mod h1:QmrqtbKuxxSWTN3ETMPuB+VtEiBJ/A9XhoYGv8E1uD8=
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internal/provider/client.go

@@ -0,0 +1,130 @@
+package provider
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+
+	vault "github.com/hashicorp/vault/api"
+)
+
+// vaultClient wraps the Vault/OpenBao API client with the operations this
+// provider needs to manage the NetBox secrets engine.
+type vaultClient struct {
+	api *vault.Client
+}
+
+func newVaultClient(address, token string) (*vaultClient, error) {
+	cfg := vault.DefaultConfig()
+	if cfg.Error != nil {
+		return nil, cfg.Error
+	}
+	if address != "" {
+		cfg.Address = address
+	}
+	c, err := vault.NewClient(cfg)
+	if err != nil {
+		return nil, err
+	}
+	if token != "" {
+		c.SetToken(token)
+	}
+	return &vaultClient{api: c}, nil
+}
+
+// mountConfig holds the tunable options applied when enabling the engine.
+type mountConfig struct {
+	DefaultLeaseTTL string
+	MaxLeaseTTL     string
+}
+
+// enableMount mounts the secrets engine of the given plugin type at path.
+func (c *vaultClient) enableMount(ctx context.Context, path, pluginType, description string, cfg mountConfig) error {
+	input := &vault.MountInput{
+		Type:        pluginType,
+		Description: description,
+		Config: vault.MountConfigInput{
+			DefaultLeaseTTL: cfg.DefaultLeaseTTL,
+			MaxLeaseTTL:     cfg.MaxLeaseTTL,
+		},
+	}
+	return c.api.Sys().MountWithContext(ctx, path, input)
+}
+
+// tuneMount updates tunable options of an existing mount (e.g. description).
+func (c *vaultClient) tuneMount(ctx context.Context, path, description string, cfg mountConfig) error {
+	input := vault.MountConfigInput{
+		Description:     &description,
+		DefaultLeaseTTL: cfg.DefaultLeaseTTL,
+		MaxLeaseTTL:     cfg.MaxLeaseTTL,
+	}
+	return c.api.Sys().TuneMountWithContext(ctx, path, input)
+}
+
+// mountInfo returns the mount at the given path, or nil if it does not exist.
+func (c *vaultClient) mountInfo(ctx context.Context, path string) (*vault.MountOutput, error) {
+	mounts, err := c.api.Sys().ListMountsWithContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	key := strings.TrimRight(path, "/") + "/"
+	if m, ok := mounts[key]; ok {
+		return m, nil
+	}
+	return nil, nil
+}
+
+// disableMount unmounts the secrets engine at path.
+func (c *vaultClient) disableMount(ctx context.Context, path string) error {
+	return c.api.Sys().UnmountWithContext(ctx, path)
+}
+
+// write writes data to an arbitrary path under the backend mount.
+func (c *vaultClient) write(ctx context.Context, path string, data map[string]interface{}) error {
+	_, err := c.api.Logical().WriteWithContext(ctx, path, data)
+	return err
+}
+
+// read reads an arbitrary path under the backend mount, returning nil if absent.
+func (c *vaultClient) read(ctx context.Context, path string) (map[string]interface{}, error) {
+	secret, err := c.api.Logical().ReadWithContext(ctx, path)
+	if err != nil {
+		return nil, err
+	}
+	if secret == nil {
+		return nil, nil
+	}
+	return secret.Data, nil
+}
+
+// delete removes an arbitrary path under the backend mount.
+func (c *vaultClient) delete(ctx context.Context, path string) error {
+	_, err := c.api.Logical().DeleteWithContext(ctx, path)
+	return err
+}
+
+func configPath(backend string) string {
+	return fmt.Sprintf("%s/config", strings.TrimRight(backend, "/"))
+}
+
+func rolePath(backend, name string) string {
+	return fmt.Sprintf("%s/roles/%s", strings.TrimRight(backend, "/"), name)
+}
+
+// isMountAlreadyExists reports whether the error is Vault's "path is already in
+// use" response, so callers can surface a friendlier message.
+func isMountAlreadyExists(err error) bool {
+	if err == nil {
+		return false
+	}
+	var respErr *vault.ResponseError
+	if errors.As(err, &respErr) {
+		for _, e := range respErr.Errors {
+			if strings.Contains(e, "path is already in use") {
+				return true
+			}
+		}
+	}
+	return false
+}

internal/provider/conversions.go

@@ -0,0 +1,53 @@
+package provider
+
+import (
+	"encoding/json"
+	"strings"
+)
+
+// toInt64 coerces the numeric shapes Vault returns (json.Number, float64, int)
+// into an int64.
+func toInt64(v interface{}) (int64, bool) {
+	switch n := v.(type) {
+	case json.Number:
+		i, err := n.Int64()
+		if err != nil {
+			f, ferr := n.Float64()
+			if ferr != nil {
+				return 0, false
+			}
+			return int64(f), true
+		}
+		return i, true
+	case float64:
+		return int64(n), true
+	case int64:
+		return n, true
+	case int:
+		return int64(n), true
+	default:
+		return 0, false
+	}
+}
+
+// toBool coerces a Vault-returned value into a bool.
+func toBool(v interface{}) (bool, bool) {
+	b, ok := v.(bool)
+	return b, ok
+}
+
+// splitBackendName splits an import ID of the form "<backend>/<marker>/<name>"
+// (e.g. "netbox/roles/ci") into its backend and name parts.
+func splitBackendName(id, marker string) (backend, name string, ok bool) {
+	sep := "/" + marker + "/"
+	idx := strings.LastIndex(id, sep)
+	if idx <= 0 {
+		return "", "", false
+	}
+	backend = id[:idx]
+	name = id[idx+len(sep):]
+	if backend == "" || name == "" {
+		return "", "", false
+	}
+	return backend, name, true
+}

internal/provider/conversions_test.go

@@ -0,0 +1,57 @@
+package provider
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+func TestToInt64(t *testing.T) {
+	cases := []struct {
+		in   interface{}
+		want int64
+		ok   bool
+	}{
+		{json.Number("42"), 42, true},
+		{json.Number("3.0"), 3, true},
+		{float64(7), 7, true},
+		{int(9), 9, true},
+		{int64(11), 11, true},
+		{"nope", 0, false},
+		{nil, 0, false},
+	}
+	for _, c := range cases {
+		got, ok := toInt64(c.in)
+		if ok != c.ok || got != c.want {
+			t.Errorf("toInt64(%v) = (%d,%v), want (%d,%v)", c.in, got, ok, c.want, c.ok)
+		}
+	}
+}
+
+func TestToBool(t *testing.T) {
+	if b, ok := toBool(true); !ok || !b {
+		t.Errorf("toBool(true) = (%v,%v), want (true,true)", b, ok)
+	}
+	if _, ok := toBool("no"); ok {
+		t.Error("toBool(string) should not be ok")
+	}
+}
+
+func TestSplitBackendName(t *testing.T) {
+	cases := []struct {
+		id, marker, backend, name string
+		ok                        bool
+	}{
+		{"netbox/roles/ci", "roles", "netbox", "ci", true},
+		{"team/netbox/roles/puppet-facts", "roles", "team/netbox", "puppet-facts", true},
+		{"netbox/roles/", "roles", "", "", false},
+		{"/roles/ci", "roles", "", "", false},
+		{"nomarker", "roles", "", "", false},
+	}
+	for _, c := range cases {
+		b, n, ok := splitBackendName(c.id, c.marker)
+		if ok != c.ok || b != c.backend || n != c.name {
+			t.Errorf("splitBackendName(%q,%q) = (%q,%q,%v), want (%q,%q,%v)",
+				c.id, c.marker, b, n, ok, c.backend, c.name, c.ok)
+		}
+	}
+}

internal/provider/provider.go

@@ -0,0 +1,100 @@
+package provider
+
+import (
+	"context"
+	"os"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/provider"
+	"github.com/hashicorp/terraform-plugin-framework/provider/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+)
+
+var _ provider.Provider = &netboxProvider{}
+
+type netboxProvider struct {
+	version string
+}
+
+type netboxProviderModel struct {
+	Address types.String `tfsdk:"address"`
+	Token   types.String `tfsdk:"token"`
+}
+
+func New(version string) func() provider.Provider {
+	return func() provider.Provider {
+		return &netboxProvider{version: version}
+	}
+}
+
+func (p *netboxProvider) Metadata(_ context.Context, _ provider.MetadataRequest, resp *provider.MetadataResponse) {
+	// The provider's source address is git.unkin.net/unkin/vault-secrets-netbox,
+	// but its resources are prefixed "netbox_" (declare it in required_providers
+	// under the local name "netbox"), mirroring how google-beta ships google_*.
+	resp.TypeName = "netbox"
+	resp.Version = p.version
+}
+
+func (p *netboxProvider) Schema(_ context.Context, _ provider.SchemaRequest, resp *provider.SchemaResponse) {
+	resp.Schema = schema.Schema{
+		Description: "Manage the NetBox token secrets engine (mount config and roles) on HashiCorp Vault or OpenBao.",
+		Attributes: map[string]schema.Attribute{
+			"address": schema.StringAttribute{
+				Description: "Address of the Vault/OpenBao server. Falls back to the VAULT_ADDR environment variable.",
+				Optional:    true,
+			},
+			"token": schema.StringAttribute{
+				Description: "Token used to authenticate to Vault/OpenBao. Falls back to the VAULT_TOKEN environment variable.",
+				Optional:    true,
+				Sensitive:   true,
+			},
+		},
+	}
+}
+
+func (p *netboxProvider) Configure(ctx context.Context, req provider.ConfigureRequest, resp *provider.ConfigureResponse) {
+	var config netboxProviderModel
+	resp.Diagnostics.Append(req.Config.Get(ctx, &config)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	address := os.Getenv("VAULT_ADDR")
+	if !config.Address.IsNull() && config.Address.ValueString() != "" {
+		address = config.Address.ValueString()
+	}
+
+	token := os.Getenv("VAULT_TOKEN")
+	if !config.Token.IsNull() && config.Token.ValueString() != "" {
+		token = config.Token.ValueString()
+	}
+
+	if address == "" {
+		resp.Diagnostics.AddError(
+			"missing Vault address",
+			"Set the provider \"address\" attribute or the VAULT_ADDR environment variable.",
+		)
+		return
+	}
+
+	client, err := newVaultClient(address, token)
+	if err != nil {
+		resp.Diagnostics.AddError("failed to create Vault client", err.Error())
+		return
+	}
+
+	resp.DataSourceData = client
+	resp.ResourceData = client
+}
+
+func (p *netboxProvider) Resources(_ context.Context) []func() resource.Resource {
+	return []func() resource.Resource{
+		NewSecretBackendResource,
+		NewSecretBackendRoleResource,
+	}
+}
+
+func (p *netboxProvider) DataSources(_ context.Context) []func() datasource.DataSource {
+	return nil
+}

internal/provider/resource_secret_backend.go

@@ -0,0 +1,291 @@
+package provider
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/path"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/booldefault"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/int64default"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringdefault"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+)
+
+var (
+	_ resource.Resource                = &secretBackendResource{}
+	_ resource.ResourceWithImportState = &secretBackendResource{}
+)
+
+const defaultPluginType = "vault-plugin-secrets-netbox"
+
+type secretBackendResource struct {
+	client *vaultClient
+}
+
+type secretBackendModel struct {
+	Path                  types.String `tfsdk:"path"`
+	Plugin                types.String `tfsdk:"plugin"`
+	Description           types.String `tfsdk:"description"`
+	NetboxURL             types.String `tfsdk:"netbox_url"`
+	Token                 types.String `tfsdk:"token"`
+	TokenVersion          types.Int64  `tfsdk:"token_version"`
+	AdminUserID           types.Int64  `tfsdk:"admin_user_id"`
+	AdminTokenID          types.Int64  `tfsdk:"admin_token_id"`
+	CACert                types.String `tfsdk:"ca_cert"`
+	TLSSkipVerify         types.Bool   `tfsdk:"tls_skip_verify"`
+	RequestTimeoutSeconds types.Int64  `tfsdk:"request_timeout_seconds"`
+}
+
+func NewSecretBackendResource() resource.Resource {
+	return &secretBackendResource{}
+}
+
+func (r *secretBackendResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_secret_backend"
+}
+
+func (r *secretBackendResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
+	resp.Schema = schema.Schema{
+		Description: "Mounts the NetBox secrets engine and writes its connection config, including the seeded admin token.",
+		Attributes: map[string]schema.Attribute{
+			"path": schema.StringAttribute{
+				Description: "Mount path for the NetBox secrets engine (e.g. \"netbox\").",
+				Required:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+				},
+			},
+			"plugin": schema.StringAttribute{
+				Description: "Registered plugin name/type to mount.",
+				Optional:    true,
+				Computed:    true,
+				Default:     stringdefault.StaticString(defaultPluginType),
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+				},
+			},
+			"description": schema.StringAttribute{
+				Description: "Human-readable description of the mount.",
+				Optional:    true,
+				Computed:    true,
+				Default:     stringdefault.StaticString(""),
+			},
+			"netbox_url": schema.StringAttribute{
+				Description: "Base URL of the NetBox server (e.g. https://netbox.example.com).",
+				Required:    true,
+			},
+			"token": schema.StringAttribute{
+				Description: "Seeded NetBox admin API token. Write-only on the backend; not read back. Omit to manage it out-of-band (e.g. via config/rotate).",
+				Optional:    true,
+				Sensitive:   true,
+			},
+			"token_version": schema.Int64Attribute{
+				Description: "NetBox token version to request when minting (2 by default; use 1 if NetBox has no API_TOKEN_PEPPERS).",
+				Optional:    true,
+				Computed:    true,
+				Default:     int64default.StaticInt64(2),
+			},
+			"admin_user_id": schema.Int64Attribute{
+				Description: "NetBox user id of the seeded admin token (computed; the engine auto-discovers/maintains it for rotation).",
+				Computed:    true,
+			},
+			"admin_token_id": schema.Int64Attribute{
+				Description: "NetBox token id of the seeded admin token (computed; maintained by the engine across rotations).",
+				Computed:    true,
+			},
+			"ca_cert": schema.StringAttribute{
+				Description: "PEM CA certificate that signed the NetBox server's TLS certificate.",
+				Optional:    true,
+			},
+			"tls_skip_verify": schema.BoolAttribute{
+				Description: "Skip TLS verification of the NetBox server (not recommended).",
+				Optional:    true,
+				Computed:    true,
+				Default:     booldefault.StaticBool(false),
+			},
+			"request_timeout_seconds": schema.Int64Attribute{
+				Description: "HTTP timeout in seconds for calls from the plugin to NetBox.",
+				Optional:    true,
+				Computed:    true,
+				Default:     int64default.StaticInt64(30),
+			},
+		},
+	}
+}
+
+func (r *secretBackendResource) Configure(_ context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
+	if req.ProviderData == nil {
+		return
+	}
+	client, ok := req.ProviderData.(*vaultClient)
+	if !ok {
+		resp.Diagnostics.AddError("unexpected provider data type", fmt.Sprintf("got %T", req.ProviderData))
+		return
+	}
+	r.client = client
+}
+
+func (r *secretBackendResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
+	var plan secretBackendModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &plan)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	mountPath := strings.Trim(plan.Path.ValueString(), "/")
+
+	err := r.client.enableMount(ctx, mountPath, plan.Plugin.ValueString(), plan.Description.ValueString(), mountConfig{})
+	if err != nil {
+		if isMountAlreadyExists(err) {
+			resp.Diagnostics.AddError(
+				"mount path already in use",
+				fmt.Sprintf("A secrets engine is already mounted at %q. Import it or choose another path.", mountPath),
+			)
+			return
+		}
+		resp.Diagnostics.AddError("failed to enable netbox secrets engine", err.Error())
+		return
+	}
+
+	if err := r.client.write(ctx, configPath(mountPath), r.configData(plan)); err != nil {
+		// Roll back the mount so we don't leave a half-configured engine.
+		_ = r.client.disableMount(ctx, mountPath)
+		resp.Diagnostics.AddError("failed to write netbox config", err.Error())
+		return
+	}
+
+	plan.Path = types.StringValue(mountPath)
+	r.applyConfigRead(ctx, &plan, &resp.Diagnostics)
+	resp.Diagnostics.Append(resp.State.Set(ctx, plan)...)
+}
+
+func (r *secretBackendResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
+	var state secretBackendModel
+	resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	mountPath := strings.Trim(state.Path.ValueString(), "/")
+
+	mount, err := r.client.mountInfo(ctx, mountPath)
+	if err != nil {
+		resp.Diagnostics.AddError("failed to read mount", err.Error())
+		return
+	}
+	if mount == nil {
+		resp.State.RemoveResource(ctx)
+		return
+	}
+	state.Description = types.StringValue(mount.Description)
+	if mount.Type != "" {
+		state.Plugin = types.StringValue(mount.Type)
+	}
+
+	r.applyConfigRead(ctx, &state, &resp.Diagnostics)
+	resp.Diagnostics.Append(resp.State.Set(ctx, state)...)
+}
+
+func (r *secretBackendResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
+	var plan, state secretBackendModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &plan)...)
+	resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	mountPath := strings.Trim(state.Path.ValueString(), "/")
+
+	if !plan.Description.Equal(state.Description) {
+		if err := r.client.tuneMount(ctx, mountPath, plan.Description.ValueString(), mountConfig{}); err != nil {
+			resp.Diagnostics.AddError("failed to tune mount description", err.Error())
+			return
+		}
+	}
+
+	if err := r.client.write(ctx, configPath(mountPath), r.configData(plan)); err != nil {
+		resp.Diagnostics.AddError("failed to update netbox config", err.Error())
+		return
+	}
+
+	plan.Path = types.StringValue(mountPath)
+	r.applyConfigRead(ctx, &plan, &resp.Diagnostics)
+	resp.Diagnostics.Append(resp.State.Set(ctx, plan)...)
+}
+
+func (r *secretBackendResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
+	var state secretBackendModel
+	resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	if err := r.client.disableMount(ctx, strings.Trim(state.Path.ValueString(), "/")); err != nil {
+		resp.Diagnostics.AddError("failed to disable netbox secrets engine", err.Error())
+		return
+	}
+}
+
+func (r *secretBackendResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
+	resource.ImportStatePassthroughID(ctx, path.Root("path"), req, resp)
+}
+
+// configData builds the write payload for config. The seeded admin token is only
+// sent when set (it is never read back), and admin_user_id/admin_token_id are
+// deliberately omitted so the engine keeps the ids it maintains across rotations.
+func (r *secretBackendResource) configData(m secretBackendModel) map[string]interface{} {
+	data := map[string]interface{}{
+		"netbox_url":              m.NetboxURL.ValueString(),
+		"token_version":           m.TokenVersion.ValueInt64(),
+		"tls_skip_verify":         m.TLSSkipVerify.ValueBool(),
+		"request_timeout_seconds": m.RequestTimeoutSeconds.ValueInt64(),
+	}
+	if !m.Token.IsNull() && !m.Token.IsUnknown() {
+		data["token"] = m.Token.ValueString()
+	}
+	if !m.CACert.IsNull() && !m.CACert.IsUnknown() {
+		data["ca_cert"] = m.CACert.ValueString()
+	}
+	return data
+}
+
+// applyConfigRead reads config back and populates the computed/derived fields.
+// token and ca_cert are never returned by the backend, so their state is
+// preserved as-is.
+func (r *secretBackendResource) applyConfigRead(ctx context.Context, m *secretBackendModel, diags *diag.Diagnostics) {
+	cfg, err := r.client.read(ctx, configPath(strings.Trim(m.Path.ValueString(), "/")))
+	if err != nil {
+		diags.AddError("failed to read netbox config", err.Error())
+		return
+	}
+	if cfg == nil {
+		return
+	}
+	if v, ok := cfg["netbox_url"].(string); ok {
+		m.NetboxURL = types.StringValue(v)
+	}
+	if n, ok := toInt64(cfg["token_version"]); ok {
+		m.TokenVersion = types.Int64Value(n)
+	}
+	if n, ok := toInt64(cfg["admin_user_id"]); ok {
+		m.AdminUserID = types.Int64Value(n)
+	} else {
+		m.AdminUserID = types.Int64Value(0)
+	}
+	if n, ok := toInt64(cfg["admin_token_id"]); ok {
+		m.AdminTokenID = types.Int64Value(n)
+	} else {
+		m.AdminTokenID = types.Int64Value(0)
+	}
+	if b, ok := toBool(cfg["tls_skip_verify"]); ok {
+		m.TLSSkipVerify = types.BoolValue(b)
+	}
+	if n, ok := toInt64(cfg["request_timeout_seconds"]); ok {
+		m.RequestTimeoutSeconds = types.Int64Value(n)
+	}
+}

internal/provider/resource_secret_backend_role.go

@@ -0,0 +1,248 @@
+package provider
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/path"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/booldefault"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+)
+
+var (
+	_ resource.Resource                = &secretBackendRoleResource{}
+	_ resource.ResourceWithImportState = &secretBackendRoleResource{}
+)
+
+type secretBackendRoleResource struct {
+	client *vaultClient
+}
+
+type secretBackendRoleModel struct {
+	Backend        types.String `tfsdk:"backend"`
+	Name           types.String `tfsdk:"name"`
+	NetboxUserID   types.Int64  `tfsdk:"netbox_user_id"`
+	NetboxUsername types.String `tfsdk:"netbox_username"`
+	WriteEnabled   types.Bool   `tfsdk:"write_enabled"`
+	Description    types.String `tfsdk:"description"`
+	TTL            types.Int64  `tfsdk:"ttl"`
+	MaxTTL         types.Int64  `tfsdk:"max_ttl"`
+}
+
+func NewSecretBackendRoleResource() resource.Resource {
+	return &secretBackendRoleResource{}
+}
+
+func (r *secretBackendRoleResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_secret_backend_role"
+}
+
+func (r *secretBackendRoleResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
+	resp.Schema = schema.Schema{
+		Description: "Manages a role on the NetBox secrets engine that mints tokens for a pre-existing NetBox service user.",
+		Attributes: map[string]schema.Attribute{
+			"backend": schema.StringAttribute{
+				Description: "Mount path of the NetBox secrets engine.",
+				Required:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+				},
+			},
+			"name": schema.StringAttribute{
+				Description: "Name of the role.",
+				Required:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+				},
+			},
+			"netbox_user_id": schema.Int64Attribute{
+				Description: "Id of the NetBox service user tokens are minted for. Set this or netbox_username. Computed when resolved from netbox_username.",
+				Optional:    true,
+				Computed:    true,
+			},
+			"netbox_username": schema.StringAttribute{
+				Description: "Username of the NetBox service user, resolved to an id at write time. Alternative to netbox_user_id.",
+				Optional:    true,
+			},
+			"write_enabled": schema.BoolAttribute{
+				Description: "Whether minted tokens permit create/update/delete (default false: read-only).",
+				Optional:    true,
+				Computed:    true,
+				Default:     booldefault.StaticBool(false),
+			},
+			"description": schema.StringAttribute{
+				Description: "Description applied to each minted NetBox token.",
+				Optional:    true,
+			},
+			"ttl": schema.Int64Attribute{
+				Description: "Default lease TTL in seconds for tokens minted from this role (the minted token's NetBox expiry is aligned to the lease).",
+				Optional:    true,
+			},
+			"max_ttl": schema.Int64Attribute{
+				Description: "Maximum lease TTL in seconds for tokens minted from this role.",
+				Optional:    true,
+			},
+		},
+	}
+}
+
+func (r *secretBackendRoleResource) Configure(_ context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
+	if req.ProviderData == nil {
+		return
+	}
+	client, ok := req.ProviderData.(*vaultClient)
+	if !ok {
+		resp.Diagnostics.AddError("unexpected provider data type", fmt.Sprintf("got %T", req.ProviderData))
+		return
+	}
+	r.client = client
+}
+
+func (r *secretBackendRoleResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
+	var plan secretBackendRoleModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &plan)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	if err := r.client.write(ctx, rolePath(plan.Backend.ValueString(), plan.Name.ValueString()), roleData(plan)); err != nil {
+		resp.Diagnostics.AddError("failed to create netbox role", err.Error())
+		return
+	}
+	resp.Diagnostics.Append(r.readInto(ctx, &plan)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	resp.Diagnostics.Append(resp.State.Set(ctx, plan)...)
+}
+
+func (r *secretBackendRoleResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
+	var state secretBackendRoleModel
+	resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	role, err := r.client.read(ctx, rolePath(state.Backend.ValueString(), state.Name.ValueString()))
+	if err != nil {
+		resp.Diagnostics.AddError("failed to read netbox role", err.Error())
+		return
+	}
+	if role == nil {
+		resp.State.RemoveResource(ctx)
+		return
+	}
+	applyRoleData(&state, role)
+	resp.Diagnostics.Append(resp.State.Set(ctx, state)...)
+}
+
+func (r *secretBackendRoleResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
+	var plan secretBackendRoleModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &plan)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	if err := r.client.write(ctx, rolePath(plan.Backend.ValueString(), plan.Name.ValueString()), roleData(plan)); err != nil {
+		resp.Diagnostics.AddError("failed to update netbox role", err.Error())
+		return
+	}
+	resp.Diagnostics.Append(r.readInto(ctx, &plan)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	resp.Diagnostics.Append(resp.State.Set(ctx, plan)...)
+}
+
+func (r *secretBackendRoleResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
+	var state secretBackendRoleModel
+	resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	if err := r.client.delete(ctx, rolePath(state.Backend.ValueString(), state.Name.ValueString())); err != nil {
+		resp.Diagnostics.AddError("failed to delete netbox role", err.Error())
+		return
+	}
+}
+
+func (r *secretBackendRoleResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
+	backend, name, ok := splitBackendName(req.ID, "roles")
+	if !ok {
+		resp.Diagnostics.AddError(
+			"invalid import ID",
+			fmt.Sprintf("expected \"<backend>/roles/<name>\", got %q", req.ID),
+		)
+		return
+	}
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("backend"), backend)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("name"), name)...)
+}
+
+func (r *secretBackendRoleResource) readInto(ctx context.Context, m *secretBackendRoleModel) diag.Diagnostics {
+	var diags diag.Diagnostics
+	role, err := r.client.read(ctx, rolePath(m.Backend.ValueString(), m.Name.ValueString()))
+	if err != nil {
+		diags.AddError("failed to read back netbox role", err.Error())
+		return diags
+	}
+	if role == nil {
+		diags.AddError("role missing after write", "the role was not found immediately after being written")
+		return diags
+	}
+	applyRoleData(m, role)
+	return diags
+}
+
+func roleData(m secretBackendRoleModel) map[string]interface{} {
+	data := map[string]interface{}{
+		"write_enabled": m.WriteEnabled.ValueBool(),
+	}
+	if !m.NetboxUserID.IsNull() && !m.NetboxUserID.IsUnknown() && m.NetboxUserID.ValueInt64() != 0 {
+		data["netbox_user_id"] = m.NetboxUserID.ValueInt64()
+	}
+	if !m.NetboxUsername.IsNull() && !m.NetboxUsername.IsUnknown() {
+		data["netbox_username"] = m.NetboxUsername.ValueString()
+	}
+	if !m.Description.IsNull() && !m.Description.IsUnknown() {
+		data["description"] = m.Description.ValueString()
+	}
+	if !m.TTL.IsNull() && !m.TTL.IsUnknown() {
+		data["ttl"] = m.TTL.ValueInt64()
+	}
+	if !m.MaxTTL.IsNull() && !m.MaxTTL.IsUnknown() {
+		data["max_ttl"] = m.MaxTTL.ValueInt64()
+	}
+	return data
+}
+
+func applyRoleData(m *secretBackendRoleModel, role map[string]interface{}) {
+	if n, ok := toInt64(role["netbox_user_id"]); ok {
+		m.NetboxUserID = types.Int64Value(n)
+	}
+	if v, ok := role["netbox_username"].(string); ok && v != "" {
+		m.NetboxUsername = types.StringValue(v)
+	} else if m.NetboxUsername.IsUnknown() {
+		m.NetboxUsername = types.StringNull()
+	}
+	if b, ok := toBool(role["write_enabled"]); ok {
+		m.WriteEnabled = types.BoolValue(b)
+	}
+	if v, ok := role["description"].(string); ok && v != "" {
+		m.Description = types.StringValue(v)
+	} else if m.Description.IsUnknown() {
+		m.Description = types.StringNull()
+	}
+	if n, ok := toInt64(role["ttl"]); ok && n != 0 {
+		m.TTL = types.Int64Value(n)
+	} else if m.TTL.IsUnknown() {
+		m.TTL = types.Int64Null()
+	}
+	if n, ok := toInt64(role["max_ttl"]); ok && n != 0 {
+		m.MaxTTL = types.Int64Value(n)
+	} else if m.MaxTTL.IsUnknown() {
+		m.MaxTTL = types.Int64Null()
+	}
+}

main.go

@@ -0,0 +1,32 @@
+// Command terraform-provider-vault-secrets-netbox is the Terraform/OpenTofu
+// provider for the vault-plugin-secrets-netbox secrets engine: it manages the
+// engine's mount + connection config and its token-minting roles on HashiCorp
+// Vault or OpenBao.
+package main
+
+import (
+	"context"
+	"flag"
+	"log"
+
+	"github.com/hashicorp/terraform-plugin-framework/providerserver"
+
+	"git.unkin.net/unkin/terraform-provider-vault-secrets-netbox/internal/provider"
+)
+
+var version = "0.0.1"
+
+func main() {
+	var debug bool
+	flag.BoolVar(&debug, "debug", false, "enable debug mode")
+	flag.Parse()
+
+	opts := providerserver.ServeOpts{
+		Address: "git.unkin.net/unkin/vault-secrets-netbox",
+		Debug:   debug,
+	}
+
+	if err := providerserver.Serve(context.Background(), provider.New(version), opts); err != nil {
+		log.Fatal(err)
+	}
+}