Files
orca/internal/jobspec
Jon Chery c3819dde12 feat(P06): task groups — multi-process services, multiple systemd units per alloc
P06 — Task groups (PRD §9.1: multiple systemd units per alloc).

Parser (internal/jobspec/markdown.go):
- TaskGroupTask type (Name, Runtime, Env, Command). Tasks []TaskGroupTask on
  WorkloadSpec. Parses tasks: frontmatter block (array of task objects).
  Tasks without their own runtime inherit the top-level Runtime as default.
  Backward compat: no tasks -> single-process (existing runtime block).

Systemd emitter (internal/emitter/systemd.go):
- Task group renders one systemd unit per task (orca-v1-alloc-<id>-<task>
  .service) plus a grouping target unit (orca-v1-alloc-<id>.target). Each
  per-task unit carries PartOf=<target> and WantedBy=multi-user.target.
  Single-process case unchanged (backward compat).

Schema (internal/spec/schema/schema.go):
- TaskGroup validation: unique task names, resolvable command (own or
  inherited). JobValidator/ServiceValidator/DaemonSetValidator all accept
  task groups.

Tests: 9 task-group tests in schema_test.go, lifecycle + target-unit tests
in systemd_test.go, parser tests in markdown_test.go. 22 packages pass.

Fix: 3 Service task-group test fixtures missing Count:1 (ServiceValidator
requires count>=1; a task-group Service still has >=1 replica).

---ci---
project: orca
phase: P06
milestone: v0.9
status: execute
---/ci---
2026-08-05 18:20:05 +00:00
..