Add examples

Author: Tavasya Ganpati

examples/data-sources/diff/example_1.tf

@@ -0,0 +1,57 @@
+# Deploy initial release with specific configuration
+resource "helm_release" "mariadb" {
+  name       = "mariadb-instance"
+  namespace  = "default"
+  repository = "https://charts.helm.sh/stable"
+
+  chart   = "mariadb"
+  version = "7.1.0"
+
+  set {
+    name  = "service.port"
+    value = "13306"
+  }
+
+  set {
+    name  = "replication.enabled"
+    value = "false"
+  }
+}
+
+# Check what would change if we modify the configuration
+data "helm_diff" "mariadb_upgrade" {
+  name       = "mariadb-instance"
+  namespace  = "default"
+  repository = "https://charts.helm.sh/stable"
+
+  chart   = "mariadb"
+  version = "7.1.0"  # Same version
+
+  set = [
+    {
+      name  = "service.port"
+      value = "3306" 
+    },
+    {
+      name  = "replication.enabled"
+      value = "true"
+    }
+  ]
+
+  depends_on = [helm_release.mariadb]
+}
+
+output "has_changes" {
+  description = "Whether the proposed config differs from deployed"
+  value       = data.helm_diff.mariadb_upgrade.has_changes
+}
+
+output "what_will_change" {
+  description = "Detailed diff of configuration changes"
+  value       = data.helm_diff.mariadb_upgrade.diff
+}
+
+output "changes_json" {
+  description = "JSON structure showing modified resources"
+  value       = data.helm_diff.mariadb_upgrade.diff_json
+}

examples/data-sources/diff/example_2.tf

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+data "helm_diff" "mariadb_instance" {
+  name       = "mariadb-instance"
+  namespace  = "default"
+  repository = "https://charts.helm.sh/stable"
+
+  chart   = "mariadb"
+  version = "7.1.0"
+
+  set = [
+    {
+      name  = "service.port"
+      value = "13306"
+    }
+  ]
+
+  set_sensitive = [
+    {
+      name  = "rootUser.password"
+      value = "s3cr3t!"
+    }
+  ]
+}
+
+
+output "has_changes" {
+  value = data.helm_diff.mariadb_instance.has_changes
+}
+
+output "diff_output" {
+  value = data.helm_diff.mariadb_instance.diff
+}
+
+output "current_manifest" {
+  value = data.helm_diff.mariadb_instance.current_manifest
+}
+
+output "proposed_manifest" {
+  value = data.helm_diff.mariadb_instance.proposed_manifest
+}