feat(templates): cloud-emulation engines — localstack, nats, kafka (redpanda), rabbitmq (spec 28) - #86
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…edpanda), rabbitmq (spec 28) Add four net-new shared-engine templates under templates/<name>/template.yaml, each declaring provides:/exports:/defaultPort:/params:/service:/volumes: — the same shared-engine contract postgres/redis/minio satisfy: - localstack provides aws (defaultPort 4566; exports endpoint/region) - nats provides nats (4222 client + 8222 monitor; JetStream -js) - kafka provides kafka (Redpanda single-binary; 9092 + dual listeners) - rabbitmq provides amqp (5672 + 15672 mgmt; secret pass via env.import) Resolver (internal/generate/resolver.go) gains the non-secret AWS-emulation export attrs endpoint (in-network alias URL) and region (param, default us-east-1), plus a per-template export-attr→secondary-port lookup so monitorPort/adminPort/mgmtPort resolve. Secret attrs stay rejected inline. Each template passes `template lint`/`template test` (golden.yaml added) and is embedded via go:embed. Determinism, CGO=0 build, and the four cross-compile targets stay green. ministack deferred (image/port/health unconfirmed offline); noted in the spec open-question. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Spec 28 — four net-new shared-engine templates turn devstack into a local cloud. Built in a worktree, verified locally (
make ci+ determinism green).provides: aws, exports[host,port,endpoint,region], port 4566,SERVICESparam,/_localstack/healthcheck.provides: nats, port 4222 (+8222 monitor), JetStream (-js).provides: kafka, Redpanda default (major-stable tag,image:escape hatch), port 9092, dual advertised listeners,rpk cluster health.provides: amqp, port 5672 (+15672 mgmt),RABBITMQ_DEFAULT_PASSas a valueless secret env key.Each declares the standard
provides:/exports:/defaultPort:/healthcheck:engine contract, is added totemplates/embed.go, and passestemplate lint/template test(golden per dir). ThesharedAttrresolver gains non-secretendpoint/regioncases + a per-template secondary-port lookup (nats monitor / kafka admin / rabbitmq mgmt) so every exported attr resolves.template listshows all four.Determinism green (existing built-ins untouched); CGO-free 4-target cross-build clean; no new Go deps. ministack skipped — its ministack.org image tag/port/SERVICES/health are unconfirmed offline (a deferral note is in the spec); authored as a follow-up once confirmed.
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