Configuration Options

Complete reference for every Cloud Build configuration option. Use this page to find the CLI flag, environment variable, or credential key for any build setting.

Configuration Precedence

Every build option can be set in multiple ways. When the same option is set in multiple places, higher-priority sources win:

flowchart LR
    A["🔧 CLI Flag"] -->|overrides| B["🌍 Environment Variable"]
    B -->|overrides| C["📁 Local Credentials"]
    C -->|overrides| D["🏠 Global Credentials"]
    style A fill:#6366f1,color:#fff,stroke:#4f46e5
    style B fill:#8b5cf6,color:#fff,stroke:#7c3aed
    style C fill:#a78bfa,color:#fff,stroke:#8b5cf6
    style D fill:#c4b5fd,color:#1e1b4b,stroke:#a78bfa

Example: If your saved credentials have SKIP_BUILD_NUMBER_BUMP=true but you pass --no-skip-build-number-bump on the CLI, the CLI flag wins and build numbers will be auto-incremented.

Tip

For CI/CD pipelines, environment variables are usually the most convenient. For local development, saved credentials (via build credentials save) avoid repeating flags every time.

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iOS Options

Code Signing

CLI Flag	Env Variable	Credential Key	Default	Description
--build-certificate-base64 <cert>	BUILD_CERTIFICATE_BASE64	BUILD_CERTIFICATE_BASE64	—	Base64-encoded .p12 distribution certificate
--build-provision-profile-base64 <profile>	BUILD_PROVISION_PROFILE_BASE64	BUILD_PROVISION_PROFILE_BASE64	—	Base64-encoded .mobileprovision provisioning profile
--build-provision-profile-base64-prod <profile>	BUILD_PROVISION_PROFILE_BASE64_PROD	BUILD_PROVISION_PROFILE_BASE64_PROD	—	Production provisioning profile (optional, for App Store distribution)
--p12-password <password>	P12_PASSWORD	P12_PASSWORD	—	Password for the .p12 certificate (omit if certificate has no password)

App Store Connect Authentication

CLI Flag	Env Variable	Credential Key	Default	Description
--apple-key-id <id>	APPLE_KEY_ID	APPLE_KEY_ID	—	App Store Connect API Key ID
--apple-issuer-id <id>	APPLE_ISSUER_ID	APPLE_ISSUER_ID	—	App Store Connect Issuer ID (UUID)
--apple-key-content <content>	APPLE_KEY_CONTENT	APPLE_KEY_CONTENT	—	Base64-encoded App Store Connect API key (.p8 file)
--apple-profile-name <name>	APPLE_PROFILE_NAME	APPLE_PROFILE_NAME	—	Provisioning profile name as shown in Apple Developer portal
--app-store-connect-team-id <id>	APP_STORE_CONNECT_TEAM_ID	APP_STORE_CONNECT_TEAM_ID	—	App Store Connect Team ID

Note

Alternative authentication: You can also use Apple ID + app-specific password instead of API keys. Pass --apple-id <email> and --apple-app-specific-password <password> (env vars: APPLE_ID, APPLE_APP_SPECIFIC_PASSWORD). API keys are recommended for CI/CD.

iOS Build Settings

CLI Flag	Env Variable	Credential Key	Default	Description
--ios-scheme <scheme>	CAPGO_IOS_SCHEME	CAPGO_IOS_SCHEME	App	Xcode scheme to build
--ios-target <target>	CAPGO_IOS_TARGET	CAPGO_IOS_TARGET	App	Xcode target for reading build settings

---

Android Options

Keystore Signing

CLI Flag	Env Variable	Credential Key	Default	Description
--android-keystore-file <keystore>	ANDROID_KEYSTORE_FILE	ANDROID_KEYSTORE_FILE	—	Base64-encoded keystore file (.keystore or .jks)
--keystore-key-alias <alias>	KEYSTORE_KEY_ALIAS	KEYSTORE_KEY_ALIAS	key0	Keystore key alias
--keystore-key-password <password>	KEYSTORE_KEY_PASSWORD	KEYSTORE_KEY_PASSWORD	—	Keystore key password (falls back to store password if not set)
--keystore-store-password <password>	KEYSTORE_STORE_PASSWORD	KEYSTORE_STORE_PASSWORD	—	Keystore store password

Google Play Configuration

CLI Flag	Env Variable	Credential Key	Default	Description
--play-config-json <json>	PLAY_CONFIG_JSON	PLAY_CONFIG_JSON	—	Base64-encoded Google Play service account JSON key

Android Build Settings

Env Variable	Default	Description
PLAY_STORE_TRACK	internal	Google Play release track (internal, alpha, beta, production)
PLAY_STORE_RELEASE_STATUS	draft	Release status on Google Play (draft, completed)

---

Build Control Options

These options work for both iOS and Android builds.

Build Mode

CLI Flag	Default	Description
--platform <platform>	—	Required. ios or android
--build-mode <mode>	release	debug or release
--build-config <json>	—	Additional JSON build configuration
--path <path>	.	Project directory
--verbose	false	Enable verbose build logging

Build Number Control

CLI Flag	Env Variable	Credential Key	Default	Description
--skip-build-number-bump	SKIP_BUILD_NUMBER_BUMP	SKIP_BUILD_NUMBER_BUMP	false	Skip automatic build number / version code incrementing
--no-skip-build-number-bump	—	—	—	Explicitly re-enable auto-increment (overrides saved credentials)

By default, Capgo Cloud Build automatically increments build numbers:

• iOS: Fetches latest build number from App Store Connect, increments by 1
• Android: Fetches max versionCode from Google Play, increments by 1

When --skip-build-number-bump is set, the build uses whatever version is already in your project files (Xcode project or build.gradle).

Output Upload

CLI Flag	Env Variable	Credential Key	Default	Description
--output-upload	BUILD_OUTPUT_UPLOAD_ENABLED	BUILD_OUTPUT_UPLOAD_ENABLED	false	Upload build outputs (IPA/APK/AAB) to Capgo storage. When set via env var, use BUILD_OUTPUT_UPLOAD_ENABLED=true.
--no-output-upload	BUILD_OUTPUT_UPLOAD_ENABLED	—	—	Disable output upload. When set via env var, use BUILD_OUTPUT_UPLOAD_ENABLED=false.
--output-retention <duration>	BUILD_OUTPUT_RETENTION_SECONDS	BUILD_OUTPUT_RETENTION_SECONDS	1h	How long download links remain active

Retention format: Use human-readable durations like 1h, 6h, 2d, 7d. Minimum is 1 hour, maximum is 7 days. When set via env var, use seconds (e.g., 3600 for 1 hour).

Authentication

CLI Flag	Env Variable	Default	Description
-a, --apikey <key>	CAPGO_TOKEN	—	Capgo API key for authentication
--supa-host <host>	—	—	Custom Supabase host (self-hosting only)
--supa-anon <key>	—	—	Custom Supabase anon key (self-hosting only)

---

Environment Variable Quick Reference

Copy-paste ready for your CI/CD pipeline. All variables are optional — only set what you need.

iOS

# Code signing (required for iOS builds)
BUILD_CERTIFICATE_BASE64="<base64-encoded .p12>"
BUILD_PROVISION_PROFILE_BASE64="<base64-encoded .mobileprovision>"
P12_PASSWORD="<certificate password>"

# App Store Connect (required for store submission)
APPLE_KEY_ID="ABC1234567"
APPLE_ISSUER_ID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
APPLE_KEY_CONTENT="<base64-encoded .p8 key>"
APPLE_PROFILE_NAME="My App Distribution Profile"
APP_STORE_CONNECT_TEAM_ID="TEAM123456"

# Optional iOS settings
CAPGO_IOS_SCHEME="App"
CAPGO_IOS_TARGET="App"

Android

# Keystore signing (required for Android builds)
ANDROID_KEYSTORE_FILE="<base64-encoded .keystore>"
KEYSTORE_KEY_ALIAS="my-key-alias"
KEYSTORE_KEY_PASSWORD="<key password>"
KEYSTORE_STORE_PASSWORD="<store password>"

# Google Play (required for store submission)
PLAY_CONFIG_JSON="<base64-encoded service account JSON>"

# Optional Android settings
PLAY_STORE_TRACK="internal"
PLAY_STORE_RELEASE_STATUS="draft"

Build Control

# Build behavior
SKIP_BUILD_NUMBER_BUMP="true"          # Skip auto-increment
BUILD_OUTPUT_UPLOAD_ENABLED="true"     # Upload IPA/APK/AAB
BUILD_OUTPUT_RETENTION_SECONDS="3600"  # 1 hour download link

# Authentication
CAPGO_TOKEN="your-api-key"

---

Credential Storage

Save Credentials Locally

Instead of passing flags or env vars every time, save credentials once:

# Save iOS credentials
bunx @capgo/cli build credentials save \
  --platform ios \
  --certificate ./dist_cert.p12 \
  --provisioning-profile ./profile.mobileprovision \
  --p12-password "cert-password" \
  --apple-key ./AuthKey.p8 \
  --apple-key-id ABC1234567 \
  --apple-issuer-id xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx \
  --apple-profile-name "My App Profile" \
  --apple-team-id TEAM123456

# Save Android credentials
bunx @capgo/cli build credentials save \
  --platform android \
  --keystore ./release.keystore \
  --keystore-alias my-key \
  --keystore-key-password "key-pass" \
  --keystore-store-password "store-pass" \
  --play-config ./play-service-account.json

Storage Locations

Flag	Location	Use Case
(default)	~/.capgo-credentials/credentials.json	Global — shared across all projects on your machine
--local	.capgo-credentials.json in project root	Per-project — overrides global when both exist

Credentials are keyed by app ID (e.g. com.example.myapp), so a single credentials file can store settings for multiple apps without conflicts. Each app’s credentials are further split by platform (ios / android).

Caution

Add .capgo-credentials.json to your .gitignore if using local credentials. Never commit credentials to version control.

Manage Saved Credentials

# List saved credentials
bunx @capgo/cli build credentials list

# Update a specific option without re-entering everything
bunx @capgo/cli build credentials update --skip-build-number-bump

# Clear saved credentials
bunx @capgo/cli build credentials clear --platform ios

---

Examples

GitHub Actions

name: Build and Submit
on:
  push:
    branches: [main]

jobs:
  build-ios:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install
      - run: bunx cap sync ios
      - run: bunx @capgo/cli build request --platform ios
        env:
          CAPGO_TOKEN: ${{ secrets.CAPGO_TOKEN }}
          BUILD_CERTIFICATE_BASE64: ${{ secrets.IOS_CERTIFICATE }}
          BUILD_PROVISION_PROFILE_BASE64: ${{ secrets.IOS_PROFILE }}
          P12_PASSWORD: ${{ secrets.P12_PASSWORD }}
          APPLE_KEY_ID: ${{ secrets.APPLE_KEY_ID }}
          APPLE_ISSUER_ID: ${{ secrets.APPLE_ISSUER_ID }}
          APPLE_KEY_CONTENT: ${{ secrets.APPLE_KEY_CONTENT }}
          APPLE_PROFILE_NAME: ${{ secrets.APPLE_PROFILE_NAME }}
          APP_STORE_CONNECT_TEAM_ID: ${{ secrets.APP_STORE_CONNECT_TEAM_ID }}

  build-android:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install
      - run: bunx cap sync android
      - run: bunx @capgo/cli build request --platform android
        env:
          CAPGO_TOKEN: ${{ secrets.CAPGO_TOKEN }}
          ANDROID_KEYSTORE_FILE: ${{ secrets.ANDROID_KEYSTORE }}
          KEYSTORE_KEY_ALIAS: ${{ secrets.KEYSTORE_ALIAS }}
          KEYSTORE_KEY_PASSWORD: ${{ secrets.KEYSTORE_KEY_PASSWORD }}
          KEYSTORE_STORE_PASSWORD: ${{ secrets.KEYSTORE_STORE_PASSWORD }}
          PLAY_CONFIG_JSON: ${{ secrets.PLAY_CONFIG_JSON }}

Using CLI Flags Directly

# Build iOS with all options inline
bunx @capgo/cli build request \
  --platform ios \
  --build-mode release \
  --skip-build-number-bump \
  --output-retention 6h \
  --apikey YOUR_API_KEY

# Build Android, skip version bump, no output upload
bunx @capgo/cli build request \
  --platform android \
  --skip-build-number-bump \
  --no-output-upload \
  --apikey YOUR_API_KEY

Mixed Configuration

Combine saved credentials with CLI overrides:

# Save base credentials once
bunx @capgo/cli build credentials save --platform ios \
  --certificate ./cert.p12 \
  --provisioning-profile ./profile.mobileprovision \
  --output-upload

# Override specific options per-build
bunx @capgo/cli build request --platform ios \
  --skip-build-number-bump \
  --output-retention 2d

The saved credentials provide signing details while CLI flags override build behavior for this specific run.