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Jon Chery 2c26a6d54f docs(P03): full-stack examples — 5 jobspecs + rendered artifacts + walkthrough

P03 — full-stack example with ingress configured (REQ-094; gate C-20).

examples/full-stack/:
- web-app.md: kind Service, process runtime, 3 replicas, Unix socket
  (default R-007), rolling update, constraints (node.role==web),
  affinity (zone==a weight 80), lifecycle hooks (post_start/pre_stop).
- api.md: kind Service, process runtime, 2 replicas, TCP opt-in
  (service.bind: 127.0.0.1, R-007), canary update with manual promote,
  constraints (node.role==api, node.cpus>=2), env vars.
- worker.md: kind Job, process runtime, one-shot, timeout 300s, env
  vars, lifecycle hooks (register/drain).
- log-shipper.md: kind Service (DaemonSet workaround — parser gap),
  process runtime, constraints (node.role==logs), env vars. Notes the
  v0.9 parser gap (schedule: block not wired) in a callout.
- postgres.md: kind Service, process runtime, 1 replica, blue-green
  update, volumes with replication (replicate:peer-b,peer-c via
  Syncthing), constraints (node.role==db, node.cpus>=4, node.memory>=8192).
- rendered/: Traefik dynamic YAML (web-app, api) + systemd units
  (web-app, api, log-shipper) showing what Orca generates on target nodes.
- README.md: end-to-end walkthrough (init -> node join -> capacity set
  -> ns create -> job run -> list --watch -> inspect rendered -> verify
  ingress -> drain/rollback). Cross-links to docs/ingress.md.
- examples_test.go: Go test that parses + validates all 5 jobspecs
  against the current parser and schema validators (gate C-20).

All 5 jobspecs pass jobspec.ParseFile + schema.ValidatorFor(kind).

---ci---
project: orca
phase: 3
milestone: v0.10
status: execute
---/ci---

2026-08-05 20:59:33 +00:00

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kind, name, count, runtime, ports, restart, update, service, health, constraints, affinity, lifecycle

kind

name

count

runtime

ports

restart

update

service

health

constraints

affinity

lifecycle

Service

web-app

one_of	command
process	/usr/bin/httpd -f /etc/orca/web-app/httpd.conf

name	port
http	8080

mode	attempts	delay
service	5	2s

strategy	max_parallel	min_healthy_time	healthy_deadline
rolling	1	10s	2m

name	port
web-app	8080

check_type	interval	timeout	unhealthy_threshold
http	5s	1s	2

node.role == "web"

target	weight
zone == "a"	80

post_start

pre_stop

/usr/local/bin/warm-cache.sh

/bin/sh -c 'sleep 5'

/usr/local/bin/drain.sh

Web App

Frontend web application serving HTTP on port 8080 via Unix socket. Three replicas with rolling updates, anti-affinity for zone spreading, and lifecycle hooks for cache warm-up and graceful drain.

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Web App

851 B

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