Don't force replacement when changing integration versions

CHANGELOG.md

@@ -3,6 +3,7 @@
 - Add `slo_id` validation to `elasticstack_kibana_slo` ([#1221](https://github.com/elastic/terraform-provider-elasticstack/pull/1221))
 - Add `ignore_missing_component_templates` to `elasticstack_elasticsearch_index_template` ([#1206](https://github.com/elastic/terraform-provider-elasticstack/pull/1206))
 - Prevent provider panic when a script exists in state, but not in Elasticsearch ([#1218](https://github.com/elastic/terraform-provider-elasticstack/pull/1218))
+- Allow version changes without a destroy/create cycle with `elasticstack_fleet_integration` ([#1255](https://github.com/elastic/terraform-provider-elasticstack/pull/1255)). This fixes an issue where it was impossible to upgrade integrations which are used by an integration policy.
 
 ## [0.11.17] - 2025-07-21
 

internal/fleet/integration/read.go

@@ -28,7 +28,6 @@ func (r *integrationResource) Read(ctx context.Context, req resource.ReadRequest
 	pkg, diags := fleet.GetPackage(ctx, client, name, version)
 	resp.Diagnostics.Append(diags...)
 	if resp.Diagnostics.HasError() {
-		resp.State.RemoveResource(ctx)
 		return
 	}
 	if pkg.Status != nil && *pkg.Status != "installed" {

internal/fleet/integration/resource_test.go

@@ -2,6 +2,7 @@ package integration_test
 
 import (
 	"context"
+	"fmt"
 	"regexp"
 	"testing"
 
@@ -10,11 +11,15 @@ import (
 	"github.com/elastic/terraform-provider-elasticstack/internal/clients/fleet"
 	"github.com/elastic/terraform-provider-elasticstack/internal/versionutils"
 	"github.com/hashicorp/go-version"
+	sdkacctest "github.com/hashicorp/terraform-plugin-sdk/v2/helper/acctest"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
 	"github.com/stretchr/testify/require"
 )
 
-var minVersionIntegration = version.Must(version.NewVersion("8.6.0"))
+var (
+	minVersionIntegration       = version.Must(version.NewVersion("8.6.0"))
+	minVersionIntegrationPolicy = version.Must(version.NewVersion("8.10.0"))
+)
 
 func TestAccResourceIntegrationFromSDK(t *testing.T) {
 	resource.Test(t, resource.TestCase{
@@ -72,6 +77,40 @@ func TestAccResourceIntegration(t *testing.T) {
 	})
 }
 
+func TestAccResourceIntegrationWithPolicy(t *testing.T) {
+	policyName := sdkacctest.RandStringFromCharSet(22, sdkacctest.CharSetAlphaNum)
+	resource.Test(t, resource.TestCase{
+		PreCheck:                 func() { acctest.PreCheck(t) },
+		ProtoV6ProviderFactories: acctest.Providers,
+		Steps: []resource.TestStep{
+			{
+				SkipFunc: versionutils.CheckIfVersionIsUnsupported(minVersionIntegrationPolicy),
+				Config:   testAccResourceIntegrationWithPolicy(policyName, "1.16.0"),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("elasticstack_fleet_integration.test_integration", "name", "tcp"),
+					resource.TestCheckResourceAttr("elasticstack_fleet_integration.test_integration", "version", "1.16.0"),
+				),
+			},
+			{
+				SkipFunc: versionutils.CheckIfVersionIsUnsupported(minVersionIntegrationPolicy),
+				Config:   testAccResourceIntegrationWithPolicy(policyName, "1.17.0"),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("elasticstack_fleet_integration.test_integration", "name", "tcp"),
+					resource.TestCheckResourceAttr("elasticstack_fleet_integration.test_integration", "version", "1.17.0"),
+				),
+			},
+			{
+				SkipFunc:          versionutils.CheckIfVersionIsUnsupported(minVersionIntegrationPolicy),
+				ResourceName:      "elasticstack_fleet_integration.test_integration",
+				Config:            testAccResourceIntegrationWithPolicy(policyName, "1.17.0"),
+				ImportState:       true,
+				ImportStateVerify: true,
+				ExpectError:       regexp.MustCompile("Resource Import Not Implemented"),
+			},
+		},
+	})
+}
+
 func TestAccResourceIntegrationDeleted(t *testing.T) {
 	resource.Test(t, resource.TestCase{
 		PreCheck:                 func() { acctest.PreCheck(t) },
@@ -122,6 +161,65 @@ resource "elasticstack_fleet_integration" "test_integration" {
 }
 `
 
+func testAccResourceIntegrationWithPolicy(policyName, version string) string {
+	return fmt.Sprintf(`
+provider "elasticstack" {
+  elasticsearch {}
+  kibana {}
+}
+
+resource "elasticstack_fleet_integration" "test_integration" {
+  name         = "tcp"
+  version      = "%s"
+  force        = true
+  skip_destroy = true
+}
+
+// An agent policy to hold the integration policy.
+resource "elasticstack_fleet_agent_policy" "sample" {
+  name            = "%s"
+  namespace       = "default"
+  description     = "A sample agent policy"
+  monitor_logs    = true
+  monitor_metrics = true
+  skip_destroy    = false
+}
+
+// The associated enrollment token.
+data "elasticstack_fleet_enrollment_tokens" "sample" {
+  policy_id = elasticstack_fleet_agent_policy.sample.policy_id
+}
+
+// The integration policy.
+resource "elasticstack_fleet_integration_policy" "sample" {
+  name                = "%s"
+  namespace           = "default"
+  description         = "A sample integration policy"
+  agent_policy_id     = elasticstack_fleet_agent_policy.sample.policy_id
+  integration_name    = elasticstack_fleet_integration.test_integration.name
+  integration_version = elasticstack_fleet_integration.test_integration.version
+
+  input {
+    input_id = "tcp-tcp"
+    streams_json = jsonencode({
+      "tcp.generic" : {
+        "enabled" : true,
+        "vars" : {
+          "listen_address" : "localhost",
+          "listen_port" : 8080,
+          "data_stream.dataset" : "tcp.generic",
+          "tags" : [],
+          "syslog_options" : "field: message\n#format: auto\n#timezone: Local\n",
+          "ssl" : "#certificate: |\n#    -----BEGIN CERTIFICATE-----\n#    ...\n#    -----END CERTIFICATE-----\n#key: |\n#    -----BEGIN PRIVATE KEY-----\n#    ...\n#    -----END PRIVATE KEY-----\n",
+          "custom" : ""
+        }
+      }
+    })
+  }
+}
+`, version, policyName, policyName)
+}
+
 const testAccResourceIntegrationDeleted = `
 provider "elasticstack" {
   elasticsearch {}

internal/fleet/integration/schema.go

@@ -26,9 +26,6 @@ func (r *integrationResource) Schema(ctx context.Context, req resource.SchemaReq
 		"version": schema.StringAttribute{
 			Description: "The integration package version.",
 			Required:    true,
-			PlanModifiers: []planmodifier.String{
-				stringplanmodifier.RequiresReplace(),
-			},
 		},
 		"force": schema.BoolAttribute{
 			Description: "Set to true to force the requested action.",