Update Lisk Sepolia bootnode + static-peer values (PLAT-702)

[sameersubudhi]

Summary

Testnet infra migration moved the Lisk Sepolia CL/EL bootnode and static/trusted-peer endpoints to a new DNS zone. Updates the git-tracked values so operators point at the new peers. Sepolia only — mainnet (.env.mainnet) untouched.

• Linear: PLAT-702
• Source: Slack thread (2026-07-30); DNS + CAA changes handled separately in lisk-infra route53 (out of scope here).

.env.sepolia

#	Key	Change
1	OP_NODE_P2P_BOOTNODES	new CL bootnode enr
2	OP_NODE_P2P_STATIC	replaced with the single new CL static peer (34.141.227.187)
3	# OP_RETH_BOOTNODES	EL bootnode IP 34.141.232.248 → 34.7.235.112 (pubkey unchanged); stays commented (snap-sync example)
4	# OP_RETH_TRUSTED_PEERS	new EL static peers, all on 34.7.94.39; stays commented

README.md

#	Change
1	Document OP_RETH_TRUSTED_PEERS (--trusted-peers) in Snap sync — was undocumented despite living in reth-entrypoint + .env.*
2	Note the EL bootnode's discv5 requirement on the OP_RETH_BOOTNODES line
3	Fix dead Docker release-notes link /engine/release-notes/27.0/ (404) → /27/

Verification

• All README external URLs re-checked (200; the two Lisk RPC endpoints return 405 to GET as expected for JSON-RPC — hosts healthy).
• op-reth flags/ports/chain-names in the README confirmed against reth-entrypoint + .env.*; both git apply patch commands confirmed accurate for their respective contexts.

Follow-ups

• Confirm in the Slack thread once merged/deployed so the old peers can be deprecated.
• Minor: op-node source-run command references $OP_NODE_L1_RPC_KIND, which no .env.* defines — left as-is, flagged for a possible follow-up.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Corrected the Docker Engine release-notes hyperlink in the system requirements.
  • Updated the op-node run command example by removing an unnecessary flag.
  • Expanded snap-sync setup instructions with OP_RETH_TRUSTED_PEERS guidance.
• Configuration
  • Updated Sepolia networking peer/bootnode settings, including revised P2P listen/static entries and updated snap-sync discovery endpoints for better connectivity.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: b2e01f6b-67de-4d19-8b11-730cc2203cf8

📥 Commits

Reviewing files that changed from the base of the PR and between b274649 and 9189c67.

📒 Files selected for processing (1)

• README.md

💤 Files with no reviewable changes (1)

• README.md

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📝 Walkthrough

Walkthrough

Updates Sepolia P2P and op-reth peer endpoints, removes an op-node command option, documents trusted peers for snap sync, and corrects a Docker Engine documentation link.

Changes

Sepolia networking configuration

Layer / File(s)	Summary
Update Sepolia peer endpoints .env.sepolia	Replaces the node P2P bootnode and static peer values, along with commented op-reth bootnode and trusted-peer enodes.
Update configuration documentation README.md	Removes the --l1.rpckind option, documents OP_RETH_TRUSTED_PEERS, and corrects the Docker Engine release-notes link.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• LiskHQ/lisk-node#126: Related op-reth bootnode and discovery configuration changes.
• LiskHQ/lisk-node#130: Related OP_RETH_TRUSTED_PEERS snap-sync configuration.

Suggested reviewers: nazgolze

Poem

I hop through peers where new paths gleam,
Bootnodes guide the snap-sync stream.
Trusted friends now stand in line,
And Docker’s docs point to the sign.
A tidy burrow, links all bright.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: updating Sepolia bootnode and static-peer values.
Description check	✅ Passed	The description covers the problem, solution, and testing, though it uses custom headings instead of the template.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch plat-702-lisk-node-update-lisk-sepolia-bootnode-static-peer-values

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