Files
orca/examples/full-stack/web-app.md
T
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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Markdown

---
kind: Service
name: web-app
count: 3
runtime:
one_of: process
command: /usr/bin/httpd -f /etc/orca/web-app/httpd.conf
ports:
- name: http
port: 8080
restart:
mode: service
attempts: 5
delay: 2s
update:
strategy: rolling
max_parallel: 1
min_healthy_time: 10s
healthy_deadline: 2m
service:
name: web-app
port: 8080
health:
check_type: http
interval: 5s
timeout: 1s
unhealthy_threshold: 2
constraints:
- node.role == "web"
affinity:
- target: zone == "a"
weight: 80
lifecycle:
post_start:
- /usr/local/bin/warm-cache.sh
pre_stop:
- /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.