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Improve AWS single-tier documentation#689

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Improve AWS single-tier documentation#689
sbrossie wants to merge 3 commits into
v3from
improve-single-tier-aws-doc

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Summary

  • Reorganizes how-to-set-up-a-single-tier-system.adoc to mirror the actual EC2 launch-wizard flow (Name/tags, AMI, instance type, key pair, network settings, storage, launch) instead of the older, out-of-sync step sequence.
  • Removes the architecture diagram and nginx/443/8443 references, which no longer match the deployment — Kaui now listens directly on 3000 and Kill Bill on 8000, with no reverse proxy.
  • Drops the hardcoded AMI version requirement ("2023.3 or later"), which goes stale every release.
  • Explains what a public subnet is (route table with a 0.0.0.0/0 route to an Internet Gateway) and how to create/verify one, since every default VPC ships with one already.
  • Fixes the security group instructions: the AWS wizard auto-fills rules for 443/8443, which must be corrected to 3000/8000; the SSH/22 rule is now added inline during network settings instead of as a separate post-launch step.
  • Adds explicit guidance for the Storage step and updates all screenshots to match the current AWS Marketplace/EC2 console UI.
  • Removes tutorial-single-tier.adoc, an orphaned draft (not linked from index.adoc or any nav, superseded by this guide back in 2023) that duplicated the same stale content.

Fixes killbill/technical-support#285

Test plan

  • bundle exec asciidoctor build of the changed file completes with zero warnings/errors (--failure-level WARN)
  • Verified all image:: references resolve to existing files under userguide/assets/aws/
  • Verified no other doc references the removed images or the deleted tutorial page
  • Visual review of rendered HTML on docs site after merge

🤖 Generated with Claude Code

Reorganize how-to-set-up-a-single-tier-system.adoc to mirror the actual
EC2 launch wizard flow, and fix several discrepancies between the doc
and the real deployment:

- Remove the architecture diagram and nginx/443/8443 references, which
  no longer match the deployment (Kaui listens directly on 3000, Kill
  Bill on 8000, no reverse proxy).
- Drop the hardcoded AMI version requirement, which goes stale as new
  versions ship.
- Explain what a public subnet is (route table with a 0.0.0.0/0 route
  to an Internet Gateway) and how to create one.
- Fix the security group instructions: correct ports are 3000/8000, not
  443/8443, and the SSH/22 rule is now added during network settings
  instead of as a separate post-launch step.
- Add a Storage step and explicit Name/tags, AMI, and Instance type
  guidance, matching the sections actually shown in the EC2 console.
- Update screenshots to match the current AWS Marketplace/EC2 UI.

Also remove tutorial-single-tier.adoc, an orphaned draft that duplicated
this guide with the same stale content and wasn't linked from anywhere.

Fixes killbill/technical-support#285
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@sbrossie
sbrossie requested a review from vnandwana July 15, 2026 03:03
sbrossie added 2 commits July 17, 2026 14:59
The single-tier AMI does run nginx as a reverse proxy in front of
Kaui and Kill Bill (ports 443/8443), not direct 3000/8000 access as
previously documented. Re-add the architecture diagram and fix the
security group and test-installation sections to reference the
correct ports.
- Move the SSH login instructions out of the single-tier setup steps
  into a new standalone doc (how-to-login-to-your-ec2-instance.adoc),
  since logging in is not required to run Kill Bill and the same
  instructions apply across single-tier, multi-tier, and CloudFormation
  deployments.
- Demote certificate setup from a required numbered step to an optional
  post-deployment task, and fix the dead certbot doc link to point to
  certbot's own site.
- Explain in the test-installation step that browsers (e.g. Chrome) will
  show a not-secure warning against the AMI's default self-signed cert,
  and that this is expected until a trusted CA certificate is installed.
- Update how-to-maintain-a-single-tier-system.adoc's stale cross-reference
  to point to the new SSH doc.
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