support simple types

Cargo.lock

@@ -155,6 +155,12 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes"
 version = "1.6.0"
@@ -536,6 +542,15 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
 
+[[package]]
+name = "num-traits"
+version = "0.2.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.16.0"
@@ -590,6 +605,12 @@ dependencies = [
  "windows-targets 0.48.5",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
+
 [[package]]
 name = "pem"
 version = "3.0.4"
@@ -837,6 +858,17 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "rmp"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f9860a6cc38ed1da53456442089b4dfa35e7cedaa326df63017af88385e6b20"
+dependencies = [
+ "byteorder",
+ "num-traits",
+ "paste",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.23"
@@ -1036,6 +1068,7 @@ dependencies = [
  "eyre",
  "prost",
  "rcgen",
+ "rmp",
  "rustls 0.23.4",
  "tempfile",
  "time",

Cargo.toml

@@ -3,11 +3,16 @@ name = "terraform-provider-terustform"
 version = "0.1.0"
 edition = "2021"
 
+[profile.dev]
+opt-level = 1
+panic = "abort"
+
 [dependencies]
 base64 = "0.22.0"
 eyre = "0.6.12"
 prost = "0.12.4"
 rcgen = "0.13.1"
+rmp = "0.8.12"
 rustls = { version = "0.23.4", default-features = false, features = ["ring", "logging", "std", "tls12"] }
 tempfile = "3.10.1"
 time = "0.3.35"

init-nix

@@ -1,8 +0,0 @@
-#!/usr/bin/env bash
-
-echo "use nix" > .envrc
-cat > shell.nix <<EOF
-{ pkgs ? import <nixpkgs> {} }: pkgs.mkShell {
-    packages = [];
-}
-EOF

src/main.rs

@@ -1,5 +1,6 @@
 mod cert;
 mod server;
+mod values;
 
 use std::{env, path::PathBuf};
 
@@ -36,7 +37,6 @@ async fn main() -> eyre::Result<()> {
         .client_auth_optional(true) // ??? terraform doesn't send certs ???
         .client_ca_root(client_cert);
 
-
     info!("Listening on {}", socket.display());
 
     let uds = UnixListener::bind(socket).wrap_err("failed to bind unix listener")?;

src/server.rs

@@ -4,12 +4,17 @@ pub mod tfplugin6 {
     tonic::include_proto!("tfplugin6");
 }
 
-use std::{collections::HashMap, vec};
+use std::{
+    collections::{BTreeMap, HashMap},
+    vec,
+};
 
 use tfplugin6::provider_server::{Provider, ProviderServer};
 use tonic::{transport::Server, Request, Response, Result, Status};
 use tracing::info;
 
+use crate::values::Type;
+
 #[derive(Debug, Default)]
 pub struct MyProvider;
 
@@ -57,7 +62,31 @@ impl Provider for MyProvider {
                 get_provider_schema_optional: true,
                 move_resource_state: false,
             }),
-            data_source_schemas: HashMap::default(),
+            data_source_schemas: HashMap::from([(
+                "terustform_kitty".to_owned(),
+                tfplugin6::Schema {
+                    version: 1,
+                    block: Some(tfplugin6::schema::Block {
+                        version: 0,
+                        attributes: vec![tfplugin6::schema::Attribute {
+                            name: "kitten".to_owned(),
+                            r#type: Type::String.to_json().into_bytes(),
+                            nested_type: None,
+                            description: "what sound does the kitten make?".to_owned(),
+                            required: false,
+                            optional: false,
+                            computed: true,
+                            sensitive: false,
+                            description_kind: 0,
+                            deprecated: false,
+                        }],
+                        block_types: vec![],
+                        description: "something or nothing?".to_owned(),
+                        description_kind: 0,
+                        deprecated: false,
+                    }),
+                },
+            )]),
             resource_schemas: HashMap::from([("terustform_hello".to_owned(), empty_schema())]),
             functions: HashMap::default(),
             diagnostics: vec![],
@@ -93,8 +122,13 @@ impl Provider for MyProvider {
         &self,
         request: Request<tfplugin6::validate_data_resource_config::Request>,
     ) -> Result<Response<tfplugin6::validate_data_resource_config::Response>, Status> {
-        tracing::error!("validate_data_resource_config");
-        todo!("validate_data_resource_config")
+        tracing::info!("validate_data_resource_config");
+
+        let reply = tfplugin6::validate_data_resource_config::Response {
+            diagnostics: vec![],
+        };
+
+        Ok(Response::new(reply))
     }
     async fn upgrade_resource_state(
         &self,
@@ -126,10 +160,10 @@ impl Provider for MyProvider {
         &self,
         request: Request<tfplugin6::plan_resource_change::Request>,
     ) -> Result<Response<tfplugin6::plan_resource_change::Response>, Status> {
-        tracing::error!("plan_resource_change");
+        tracing::info!("plan_resource_change");
 
         let reply = tfplugin6::plan_resource_change::Response {
-            planned_state: todo!(),
+            planned_state: request.into_inner().proposed_new_state,
             requires_replace: vec![],
             planned_private: vec![],
             diagnostics: vec![],
@@ -137,15 +171,22 @@ impl Provider for MyProvider {
             deferred: None,
         };
 
-        todo!("plan_resource_change")
+        Ok(Response::new(reply))
     }
     async fn apply_resource_change(
         &self,
         request: Request<tfplugin6::apply_resource_change::Request>,
     ) -> Result<Response<tfplugin6::apply_resource_change::Response>, Status> {
-        tracing::error!("apply_resource_change");
+        tracing::info!("apply_resource_change");
 
-        todo!("apply_resource_change")
+        let reply = tfplugin6::apply_resource_change::Response {
+            new_state: request.into_inner().planned_state,
+            private: vec![],
+            diagnostics: vec![],
+            legacy_type_system: false,
+        };
+
+        Ok(Response::new(reply))
     }
     async fn import_resource_state(
         &self,
@@ -169,7 +210,22 @@ impl Provider for MyProvider {
     ) -> Result<Response<tfplugin6::read_data_source::Response>, Status> {
         tracing::error!("read_data_source");
 
-        todo!("read_data_source")
+        let reply = tfplugin6::read_data_source::Response {
+            state: Some(tfplugin6::DynamicValue {
+                msgpack: crate::values::Value::Object(BTreeMap::from([(
+                    "kitten".to_owned(),
+                    Box::new(crate::values::Value::String("meow".to_owned())),
+                )]))
+                .msg_pack(),
+                json: vec![],
+            }),
+            deferred: None,
+            diagnostics: vec![],
+        };
+
+        dbg!(request);
+
+        Ok(Response::new(reply))
     }
     /// GetFunctions returns the definitions of all functions.
     async fn get_functions(

src/values.rs

@@ -0,0 +1,61 @@
+// check terraform-plugin-go tfprotov6/internal/toproto for convesions
+//                           tftypes                    for types and values
+
+use std::collections::{BTreeMap, HashMap};
+
+pub enum Type {
+    Number,
+    String,
+}
+
+impl Type {
+    pub fn to_json(&self) -> String {
+        match *self {
+            Self::String => "\"string\"".to_owned(),
+            Self::Number => "\"number\"".to_owned(),
+        }
+    }
+}
+
+pub struct DynamicValue {
+    msgpack: Option<Vec<u8>>,
+    json: Option<Vec<u8>>,
+}
+
+// this is very dumb and wrong
+pub enum Value {
+    String(String),
+    Object(BTreeMap<String, Box<Value>>)
+}
+
+impl Value {
+    pub fn ty(&self) -> Type {
+        todo!()
+    } 
+}
+
+// marshal msg pack
+// tftypes/value.go:MarshalMsgPack
+
+impl Value {
+    pub fn msg_pack(&self) -> Vec<u8> {
+        let mut buf = Vec::new();
+        self.msg_pack_inner(&mut buf);
+        buf
+    }
+
+    pub fn msg_pack_inner(&self, v: &mut Vec<u8>) {
+        match self {
+            Value::String(s) => {
+                rmp::encode::write_str(v, s).unwrap();
+            }
+            Value::Object(o) => {
+                rmp::encode::write_map_len(v, o.len().try_into().unwrap()).unwrap();
+                for (key, val) in o {
+                    rmp::encode::write_str(v, key).unwrap();
+                    val.msg_pack_inner(v);
+                }
+            }
+        }
+    }
+}

test/main.tf

@@ -8,4 +8,10 @@ terraform {
 
 provider "terustform" {}
 
-resource "terustform_hello" "test1" {}
+//resource "terustform_hello" "test1" {}
+
+data "terustform_kitty" "kitty" {}
+
+output "meow" {
+  value = data.terustform_kitty.kitty.kitten
+}