open-swe/deploy/ami/templates
Adam Moussa fcbdfb67aa
feat: open-swe dev/prod compute + ALB ingress (T12) (#14)
AppService construct wires the per-env EC2 box and its internet path. The
seahaven-vpc and the internet-facing seahaven-com ALB are SHARED with the
on-prem seahaven-site stack, so everything VPC/ALB/zone-side is IMPORTED and
never owned/mutated; open-swe only ADDS its own resources.

Per env (open-swe-stack.ts → AppService):
- ARM64 EC2 box (t4g.medium dev / t4g.large prod) in private1 (us-east-1a,
  in-AZ NAT egress). requireImdsv2, gp3-encrypted root, deleteOnTermination
  (no RETAIN volume — replacement-tolerant; see ami-cache.ts).
  userDataCausesReplacement; user-data rendered from deploy/ami/user-data.sh.
- Standalone instance SG: ingress ONLY from the shared ALB SG on :80; egress
  via NAT. The ALB SG is opened to the box via a STANDALONE CfnSecurityGroupEgress
  (the imported, on-prem-owned SG is never mutated).
- Target group → instance:80 (nginx is sole ingress; LangGraph :2024 stays
  loopback). Health check GET /healthz.
- Two rules on the imported :443 listener, both → the TG:
    * webhooks (priority 2 dev / 3 prod): host∈{openswe,hooks}-<env> AND /webhooks/*
    * site     (priority 10 dev / 11 prod): host=openswe-<env> (dashboard SPA + api)
  Webhooks MUST sit below the on-prem host-agnostic /webhooks/* rule (priority 5)
  or it would steal every webhook — first-match-by-ascending-priority.
- Route53 alias records (openswe[-dev] + hooks[-dev]) → shared ALB.
- 4 CloudWatch log groups at 30-day retention (IaC-owned; mirrors CW-agent config).

Security (/sh-security-review T12): iac-iam pass clean. Logic pass → 1 confirmed
medium fixed (OSWE-T12-01: nginx 1MB default client_max_body_size would 413 large
GitHub webhooks pre-signature-verification → set 25m on /webhooks/, 10m on
/dashboard/api/); hooks host scoped to /webhooks/* only (OSWE-T12-02 hygiene);
XFF-spoof candidate killed (no code trusts leftmost XFF). No confirmed
critical/high.

Synth-only; not deployed. AMI is the cdk.context.json placeholder until the baked
open-swe-base-arm64 id is pinned pre-deploy. tsc/synth(dev+prod)/jest(16) clean.
Next: T13 GPT-4.1 cross-review of the SG/listener diff before any deploy.
2026-06-26 16:10:23 -04:00
..
amazon-cloudwatch-agent.json feat(deploy): EC2 AMI recipe (Packer) + cloud-init/user-data (PR#2) (#7) 2026-06-26 15:06:36 -04:00
open-swe.nginx.conf feat: open-swe dev/prod compute + ALB ingress (T12) (#14) 2026-06-26 16:10:23 -04:00
open-swe.service feat(deploy): EC2 AMI recipe (Packer) + cloud-init/user-data (PR#2) (#7) 2026-06-26 15:06:36 -04:00