BridgeHub Rococo<>Wococo parachains story

[bkontur]

• Base
• Local setup
• Live environment
  • Deployment
  • Parachain collators + validators
  • Relayers
    • Monitoring/alerts
    • Relayer accounts
  • Initialize bridges
    • Init bridge: Rococo -> Wococo
    • Init bridge: Wococo -> Rococo
• Use-cases
  • Send xcm:Transact or xcm:Trap between Rococo:Rockmine2 and Wococo:Wockmint
  • Asset transfer between Rococo:Rockmine2 and Wococo:Wockmint
• Issues/TODOs:

Base

Cumulus github with BridgeHub runtimes: https://github.com/paritytech/cumulus/tree/bridge-hub-rococo-wococo/parachains/runtimes/bridge-hubs

Local setup

See: https://github.com/paritytech/cumulus/tree/bridge-hub-rococo-wococo/parachains/runtimes/bridge-hubs#how-to-test-locally-rococo---wococo

Live environment

Deployment

With help of DevOps guys
https://github.com/paritytech/devops/issues/1934
https://github.com/paritytech/devops/issues/1935
https://github.com/paritytech/devops/issues/2190

Parachain collators + validators

Rococo:
https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-rpc.polkadot.io#/explorer

BridgeHubRococo:
https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-bridge-hub-rpc.polkadot.io#/explorer

Logs: here

Rockmine2:
https://polkadot.js.org/apps/?rpc=wss%253A%252F%252Fws-rococo-rockmine2-collator-node-0.parity-testnet.parity.io#/explorer

---

Wococo: (needs VPN - https://github.com/paritytech/devops/issues/2030)
https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fwococo-rpc-node-0.parity-testnet.parity.io#/explorer

BridgeHubWococo:
https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fwococo-bridge-hub-rpc.polkadot.io#/explorer

Logs: here

Wockmint: (needs VPN - https://github.com/paritytech/devops/issues/2030)
https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fws-wococo-wockmint-collator-node-0.parity-testnet.parity.io#/explorer

Relayers

Logs: here

Deployed version: here

Monitoring/alerts

TODO: #1715

Monitoring: BridgeHubRococo -> BridgeHubWococo
Monitoring: BridgeHubWococo -> BridgeHubRococo

Relayer accounts

BridgeHubRococo: 5HWAWSumAEhLPM4YDATQDy9nnQKcsptPAwsWWBSq757LHc92
BridgeHubWococo: 5HHUmazpcoj5cAmR3exskbQTxxCCx8UB1ZYtwbY2tbD2Pvfb

Initialize bridges

Init bridge: Rococo -> Wococo

1. Generate initialize init-bridge call as hex-encoded-data:

# Rococo -> Wococo
RUST_LOG=bridge=info \
	./target/release/substrate-relay init-bridge rococo-to-bridge-hub-wococo \
	--source-host rococo-rpc.polkadot.io \
	--source-port 443 \
	--source-secure \
	--target-host wococo-bridge-hub-rpc.polkadot.io \
	--target-port 443 \
	--target-secure \
	--target-signer //Bob \
	--dry-run
	
...

2022-12-02 09:08:38 +00 INFO bridge Initialize bridge call encoded as hex string: "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2. Check hex-encoded-data here: https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fwococo-bridge-hub-rpc.polkadot.io#/extrinsics/decode

3. Simulate governance as submit extrinsic XCM::Transact with hex-encoded-data for para_id=1014 from Wococo relay node

Init bridge: Wococo -> Rococo

1. Generate initialize init-bridge call as hex-encoded-data: (needs VPN, because of Wococo relay node access)

# Wococo -> Rococo
RUST_LOG=bridge=info \
	./target/release/substrate-relay init-bridge wococo-to-bridge-hub-rococo \
	--source-host wococo-rpc-node-0.parity-testnet.parity.io \
	--source-port 443 \
	--source-secure \
	--target-host rococo-bridge-hub-rpc.polkadot.io \
	--target-port 443 \
	--target-secure \
	--target-signer //Bob \
	--dry-run

...

2022-12-02 09:22:59 +00 INFO bridge Initialize bridge call encoded as hex string: "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"

2. Check hex-encoded-data here: https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-bridge-hub-rpc.polkadot.io#/extrinsics/decode

3. Simulate governance as submit extrinsic XCM::Transact with hex-encoded-data for para_id=1013 from Rococo relay node

Redeploy relayer

• On the bridges repo add a tag that points to the commit that you need to deploy

git tag [tag_name] -a
git push upstream [tag_name]

• A new docker image named paritytech/bridges-common-relay:[tag-name] will be automatically generated right after adding the tag. You can check for it here.
• Reopen this devops issue and ask the devops team to deploy the new version docker image for the relayer.

Use-cases

Send xcm:Transact or xcm:Trap between Rococo:Rockmine2 and Wococo:Wockmint

Open HRMP channels: (https://github.com/paritytech/devops/issues/2190)
Calls from Rococo relay chain:
force_open_hrmp_channel(1013, 1015, 5, 102400)
force_open_hrmp_channel(1015, 1013, 5, 102400)

Calls from Wococo relay chain:
force_open_hrmp_channel(1014, 1000, 4, 524288)
force_open_hrmp_channel(1000, 1014, 4, 524288)

Asset transfer between Rococo:Rockmine2 and Wococo:Wockmint

There is a kubernetes cron job deployed in testnet infra for Rococo/Wococo, which basically uses script transfer-asset-from-statemine-rococo from Cumulus repo.
This script periodically calls dedicated extrinsic transfer_asset_via_bridge for from the PR.
The script transfers assets between accounts:
From Rockmine2: GegTpZJMyzkntLN7NJhRfHDk4GWukLbGSsag6PHrLSrCK4h to Wockmint: 5Ge7YcbctWCP1CccugzxWDn9hFnTxvTh3bL6PNy4ubNJmp7Y.

---

Issues/TODOs:

• Fix weights on BridgeHub parachains (XCM + extrinsics)
  • Fix ChainWithMessages::WeightInfo with correct values according to BridgeHub parachains #1640
  • Support XCM delivery fees in bridges #1318
  • Use Automated Benchmarking for Runtimes #391
• Setup rewards (pallets) for relayers
  • Pay partial relayer reward at the target chain #1648
  • Remove MintReward and introduce PayRewardFromAccount #1654
• Monitoring/alerts - Monitoring/alerts for Rococo/Wococo relaying #1715
• AccountId stuff for xcm:Transact - [xcm-v3] Bridging xcm:v3:Transact and handling AccountId32 on target chain (with different globalConsensus) polkadot#6517

[bkontur]

Added section Initialize bridges with command/data for trigger initialize bridge-hubs on Live

https://github.com/paritytech/devops/issues/1934#issuecomment-1334993205

[bkontur]

Accounts prepared.
Initialize bridges were successfully triggered (as governance-like) on live BridgeHubs.
Now waiting to DevOps to run complex relayer: https://github.com/paritytech/devops/issues/1935#issuecomment-1339045499

[bkontur]

complex relayer is running on live.
Started to onboard new parachain Rockmine2/Wockmint https://github.com/paritytech/devops/issues/2190

• to test end-to-end xcm-v3
• to test asset moving

[bkontur]

deployed live