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## Thinking Path > - Paperclip server starts up and sets internal `PAPERCLIP_API_URL` for downstream services and adapters > - The server startup code was unconditionally overwriting `PAPERCLIP_API_URL` with `http://localhost:3100` (or equivalent based on `config.host`) > - In Kubernetes deployments, `PAPERCLIP_API_URL` is set via a ConfigMap to the externally accessible load balancer URL (e.g. `https://paperclip.example.com`) > - Because the env var was unconditionally set after loading the ConfigMap value, the ConfigMap-provided URL was ignored and replaced with the internal localhost address > - This caused downstream services (adapter env building) to use the wrong URL, breaking external access > - This pull request makes the assignment conditional — only set if not already provided by the environment > - External deployments can now supply `PAPERCLIP_API_URL` and it will be respected; local development continues to work without setting it ## What Changed - `server/src/index.ts`: Wrapped `PAPERCLIP_API_URL` assignment in `if (!process.env.PAPERCLIP_API_URL)` guard so externally provided values are preserved - `server/src/__tests__/server-startup-feedback-export.test.ts`: Added tests verifying external `PAPERCLIP_API_URL` is respected and fallback behavior is correct - `docs/deploy/environment-variables.md`: Updated `PAPERCLIP_API_URL` description to clarify it can be externally provided and the load balancer/reverse proxy use case ## Verification - Run the existing test suite: `pnpm test:run server/src/__tests__/server-startup-feedback-export.test.ts` — all 3 tests pass - Manual verification: Set `PAPERCLIP_API_URL` to a custom value before starting the server and confirm it is not overwritten ## Risks - Low risk — purely additive conditional check; existing behavior for unset env var is unchanged ## Model Used MiniMax M2.7 — reasoning-assisted for tracing the root cause through the startup chain (`buildPaperclipEnv` → `startServer` → `config.host` → `HOST` env var) ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [ ] If this change affects the UI, I have included before/after screenshots - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [x] I will address all Greptile and reviewer comments before requesting merge --------- Co-authored-by: Pawla Abdul (Bot) <pawla@groombook.dev> Co-authored-by: Paperclip <noreply@paperclip.ing>
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2.6 KiB
title, summary
| title | summary |
|---|---|
| Environment Variables | Full environment variable reference |
All environment variables that Paperclip uses for server configuration.
Server Configuration
| Variable | Default | Description |
|---|---|---|
PORT |
3100 |
Server port |
PAPERCLIP_BIND |
loopback |
Reachability preset: loopback, lan, tailnet, or custom |
PAPERCLIP_BIND_HOST |
(unset) | Required when PAPERCLIP_BIND=custom |
HOST |
127.0.0.1 |
Legacy host override; prefer PAPERCLIP_BIND for new setups |
DATABASE_URL |
(embedded) | PostgreSQL connection string |
PAPERCLIP_HOME |
~/.paperclip |
Base directory for all Paperclip data |
PAPERCLIP_INSTANCE_ID |
default |
Instance identifier (for multiple local instances) |
PAPERCLIP_DEPLOYMENT_MODE |
local_trusted |
Runtime mode override |
PAPERCLIP_DEPLOYMENT_EXPOSURE |
private |
Exposure policy when deployment mode is authenticated |
PAPERCLIP_API_URL |
(auto-derived) | Paperclip API base URL. When set externally (e.g., via Kubernetes ConfigMap, load balancer, or reverse proxy), the server preserves the value instead of deriving it from the listen host and port. Useful for deployments where the public-facing URL differs from the local bind address. |
Secrets
| Variable | Default | Description |
|---|---|---|
PAPERCLIP_SECRETS_MASTER_KEY |
(from file) | 32-byte encryption key (base64/hex/raw) |
PAPERCLIP_SECRETS_MASTER_KEY_FILE |
~/.paperclip/.../secrets/master.key |
Path to key file |
PAPERCLIP_SECRETS_STRICT_MODE |
false |
Require secret refs for sensitive env vars |
Agent Runtime (Injected into agent processes)
These are set automatically by the server when invoking agents:
| Variable | Description |
|---|---|
PAPERCLIP_AGENT_ID |
Agent's unique ID |
PAPERCLIP_COMPANY_ID |
Company ID |
PAPERCLIP_API_URL |
Paperclip API base URL (inherits the server-level value; see Server Configuration above) |
PAPERCLIP_API_KEY |
Short-lived JWT for API auth |
PAPERCLIP_RUN_ID |
Current heartbeat run ID |
PAPERCLIP_TASK_ID |
Issue that triggered this wake |
PAPERCLIP_WAKE_REASON |
Wake trigger reason |
PAPERCLIP_WAKE_COMMENT_ID |
Comment that triggered this wake |
PAPERCLIP_APPROVAL_ID |
Resolved approval ID |
PAPERCLIP_APPROVAL_STATUS |
Approval decision |
PAPERCLIP_LINKED_ISSUE_IDS |
Comma-separated linked issue IDs |
LLM Provider Keys (for adapters)
| Variable | Description |
|---|---|
ANTHROPIC_API_KEY |
Anthropic API key (for Claude Local adapter) |
OPENAI_API_KEY |
OpenAI API key (for Codex Local adapter) |