integritee-node

This repository belongs to the Integritee project.

A substrate-based node that maintains a registry of remote attested integritee-service enclaves. The node also acts as a proxy for encrypted requests which are forwarded to the integritee-service.

Build and Run

1. See the substrate install docs to install the preliminaries: https://docs.substrate.io/install.
2. Build the node:

   cargo build --release 
   

Versioning

There are two important version parameters in the RuntimeVersion that change behaviour, see RustDocs.

• spec_version always needs to be updated when the runtime logic changes.
• transaction_version, see desctription in RustDocs.

Convention:

1. The runtime's and node's crate patch version must be aligned with the spec_version.
2. The crate version must be the same as the tag that is created for the release.

Benchmark the runtimes

In ./scripts we have a script for benchmarking the runtimes.

Current benchmark

The current weights have been benchmarked with the following reference hardware:

GenuineIntel CPU MHz: 2494.144
8GB of RAM
NVMe SSD

Running benchmark

1. Compile the node with: cargo build --release --features runtime-benchmarks
2. run: ./scripts/benchmark_all_pallets.sh.
3. If changed, update the reference hardware above.

Adding new pallets to be benchmarked

Every pallet with a type WeightInfo parameter in its config must be benchmarked.

1. [Cargo.toml] add <new_pallet>/runtime-benchmarks in the runtime-benchmarks feature section.
2. [runtime] add the new pallet to the list_benchmark! and add_benchmark! list.
3. add the new pallet in the script ./scripts/benchmark_all_pallets.sh and run it.
4. [runtime/src/weights] add the new file to the modules
5. [runtime] replace the placeholder type WeightInfo = () with type WeightInfo = weights::<new_pallet>::WeightInfo<Runtime>

upgrade hard-coded genesis

For easy use of the binary without distributing a json chain spec, we generate a spec and build it into the binary

./target/release/integritee-node build-spec --chain integritee-solo-fresh --raw > integritee-solo.json
./target/release/integritee-node build-spec --chain cranny-fresh --raw > cranny.json

Then overwrite spec files in ./node/res/*.json but keep bootnode definitions and check other meta too.

Build the collator again and push.

prepare and test runtime upgrade for Live chain

1. bump spec version. check if other runtime versions need to be bumped too. bump crate versions accordingly

2. tag version. this will trigger CI to produce a draft release with all artifacts

3. download release artifacts integritee-node (and postfix with version -1.0.6) and integritee_node_runtime-v6.compact.compressed.wasm

4. start a local chain with the previous, latest deployed version (1.0.5)

   ./integritee-node-1.0.5 purge-chain --base-path /tmp/alice --chain local
   ./integritee-node-1.0.5 purge-chain --base-path /tmp/bob --chain local
   ./integritee-node-1.0.5 --base-path /tmp/alice --chain local --alice --port 30333 --ws-port 9945 --rpc-port 9933 --node-key 0000000000000000000000000000000000000000000000000000000000000001 --telemetry-url "wss://telemetry.polkadot.io/submit/ 0" --validator
   

5. in another terminal

   integritee-node-1.0.5 --base-path /tmp/bob --chain local --bob --port 30334 --ws-port 9946 --rpc-port 9934 --telemetry-url "wss://telemetry.polkadot.io/submit/ 0" --validator --bootnodes /ip4/127.0.0.1/tcp/30333/p2p/12D3KooWEyoppNCUx8Yx66oV9fJnriXwCcXwDDUA2kj6vnc6iDEp
   

   you should see blocks produced.

6. perform a transfer extrinsic in js/apps to test

7. upgrade runtime to integritee_node_runtime-v6.compact.compressed.wasm

8. verify spec version has been upgraded in js/apps

9. stop one validator and restart it with newer binary version

10. test by pointing js/apps to the updated validator ws:// and sending a transfer

11. stop second validator and restart with new binary

12. test by pointing js/apps to the updated validator ws:// and sending a transfer

13. check that the node version has increased in js/apps

14. finally, submit runtime upgrade to live chain