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---
Jon Chery
c3819dde12