afterhours-shift-manager/SETUP.md
Adam Moussa 11512f9aad
Fix SETUP.md to use Secrets Manager, not SSM (compliance #68) (#89)
SETUP.md step 2 told operators to store the Slack token/signing secret in
SSM Parameter Store, which (a) violates the secrets-and-config handbook
(API tokens/signing values must live in Secrets Manager) and (b) contradicts
the IaC — the stack reads Secrets Manager and the IAM roles only grant
secretsmanager:GetSecretValue on afterhours-shift-manager/*, so following the
old instructions would break the deploy.

- Section 2 now uses `aws secretsmanager create-secret` for all five secrets
  (slack-bot-token, slack-signing-secret, 3cx-domain/client-id/client-secret) —
  the 3CX secrets were also previously undocumented.
- The Slack channel ID is not a secret; documented as the `ShiftChannel` deploy
  parameter (--parameter-overrides) instead of an SSM SecureString.

Addresses violation 2 of #68.
2026-06-01 19:46:47 -04:00

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# After-Hours Shift Manager — Setup Guide
## 1. Create a Slack App
1. Go to [api.slack.com/apps](https://api.slack.com/apps) → **Create New App** → **From scratch**
2. Name: `After-Hours Shift Manager`, pick your workspace
3. Under **OAuth & Permissions**, add these **Bot Token Scopes**:
- `chat:write` — post messages to channels
- `commands` — register slash commands
- `chat:write.public` — post to channels the bot isn't in
4. Under **Slash Commands**, create a new command:
- Command: `/oncall`
- Request URL: `(fill in after deploy — see step 4)`
- Short Description: `Manage after-hours on-call shifts`
- Usage Hint: `[schedule | pick <date> | drop <date> | swap <date> @person | register <ext> | roster | help]`
5. Under **Interactivity & Shortcuts**, toggle **ON**:
- Request URL: same URL as the slash command (the `/slack/events` endpoint)
6. **Install to Workspace** — approve the permissions
7. Copy the **Bot User OAuth Token** (`xoxb-...`) and **Signing Secret** (under Basic Information)
## 2. Store Secrets in AWS Secrets Manager
The stack reads these from Secrets Manager (the IAM roles grant
`secretsmanager:GetSecretValue` on `afterhours-shift-manager/*`):
```bash
# Slack
aws secretsmanager create-secret \
--name afterhours-shift-manager/slack-bot-token \
--secret-string "xoxb-YOUR-BOT-TOKEN"
aws secretsmanager create-secret \
--name afterhours-shift-manager/slack-signing-secret \
--secret-string "YOUR-SIGNING-SECRET"
# 3CX Queue XAPI (used by roster-sync and ring-scheduler)
aws secretsmanager create-secret \
--name afterhours-shift-manager/3cx-domain \
--secret-string "yourcompany.3cx.us"
aws secretsmanager create-secret \
--name afterhours-shift-manager/3cx-client-id \
--secret-string "YOUR-3CX-CLIENT-ID"
aws secretsmanager create-secret \
--name afterhours-shift-manager/3cx-client-secret \
--secret-string "YOUR-3CX-CLIENT-SECRET"
```
> The Slack **channel ID** is not a secret — it's passed as the `ShiftChannel`
> deploy parameter in step 3, not stored in Secrets Manager or SSM.
## 3. Deploy the Stack
```bash
# Build and deploy. ShiftChannel is the Slack channel ID for schedule posts
# (right-click the channel in Slack → Copy link → the ID is the last segment).
sam build
sam deploy --guided \
--stack-name afterhours-shift-manager \
--region us-east-1 \
--parameter-overrides ShiftChannel=C0XXXXXXX QueueNumber=801
# Note the SlackBotApiUrl output — you'll need it for step 4
```
## 4. Set the Slack Request URL
After deploy, copy the `SlackBotApiUrl` from the SAM output. Go back to your Slack app settings:
- **Slash Commands** → edit `/oncall` → set **Request URL** to the output URL
- **Interactivity & Shortcuts** → set **Request URL** to the same URL
## 5. Seed the Schedule
```bash
python scripts/seed_schedule.py
```
This populates the DynamoDB table with the employee roster and default weekly schedule.
## 6. Invite the Bot & Register Users
1. Create a channel (e.g. `#after-hours-shifts`) and invite the bot: `/invite @After-Hours Shift Manager`
2. Each employee links their Slack account by running:
```
/oncall register 114
```
(using their own extension number)
## 7. Update the 3CX Scheduler (optional)
To have the 3CX scheduler read overrides from DynamoDB (so Slack-driven changes apply to future dates automatically), deploy the updated 3CX scheduler from the `feature/dynamodb-shift-integration` branch. See that branch's changes for details.
Without this step, the Slack bot still works — it invokes the 3CX scheduler Lambda directly for same-day changes. Future-date overrides would only take effect if the scheduler reads DynamoDB.
## Commands Reference
| Command | Description |
|---|---|
| `/oncall` | Show this week's schedule |
| `/oncall next` | Show next week's schedule |
| `/oncall pick <date>` | Pick up a shift |
| `/oncall drop <date>` | Drop your shift (marks it open) |
| `/oncall swap <date> @person` | Hand your shift to someone else |
| `/oncall register <ext>` | Link your Slack to your extension |
| `/oncall roster` | Show all employees and their link status |
| `/oncall help` | Show help |
Dates can be: `today`, `tomorrow`, `monday`–`sunday`, `4/5`, `2026-04-05`