deployment: wait for node healthcheck before starting the simulator

[sirandreww-starkware]

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[reviewable-StarkWare]

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[sirandreww-starkware]

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• deployment: wait for node healthcheck before starting the simulator #14225 👈 (View in Graphite)
• deployment: add N_NODES flag to run multiple nodes in local monitoring stack #14224
• deployment: support real Pragma oracle in local monitoring stack #14223
• apollo_consensus_orchestrator: pin SNIP-35 fee_target to override_l2_gas_price_fri when set #14230
• apollo_consensus_orchestrator,apollo_dashboard: add USD fee target panel and unit suffixes #14228
• apollo_consensus_orchestrator: make SNIP-35 fee target a dynamic config #14220
• main-v0.14.3

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PR Summary

Low Risk
Local docker-compose orchestration only; no production runtime, auth, or application logic changes.

Overview
The local monitoring docker-compose stack now treats sequencer nodes as healthy only after the HTTP gateway on port 8081 accepts connections, using a bash /dev/tcp probe (no curl in the image).

sequencer_simulator no longer starts as soon as sequencer-node-0 is merely running; it waits until that node reports healthy, avoiding races where the simulator hits the gateway before it is bound.

The healthcheck is defined on the shared x-sequencer-node anchor, so every node service inherits the same readiness semantics.

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[ShahakShama]

@ShahakShama reviewed 1 file and all commit messages, and made 1 comment.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on sirandreww-starkware).

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deployments/monitoring/local/docker-compose.yml line 30 at r1 (raw file):

  # for it instead of racing the gateway bind. Uses bash /dev/tcp since the image has no curl.
  healthcheck:
    test: ["CMD", "bash", "-c", "</dev/tcp/localhost/8081"]

Is there a way to get the 8081 here from the node config (or get the node config from this line) so they won't drift?