Configuration

You will learn: which config sources OpenFlare Server, frontend build, Agent, Relay, and OpenFlared support, what config fields and env vars exist, and their defaults and behavior.

This document summarizes all configuration items supported by the current OpenFlare version.

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Config Sources

1. Server Config Sources

• Config file: reads config.yaml in the same directory at startup by default (overridable via the CONFIG_PATH env var).
• Env vars: every field in the config file can be overridden by an UPPER_SNAKE_CASE env var (env vars take precedence over config.yaml).
• System runtime config: stored in the w_system_configs table in the relational DB. These can be hot-updated and take effect dynamically via the admin UI or system API.

2. Agent / Relay / OpenFlared Config Sources

• CLI args: -config specifies the config file (JSON format).
• Config file: e.g. agent.json, relay.json, flared.json.
• Override env vars: specific env vars can override connection addresses and Token credentials in the config file.

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Config File Locations

Component	Default Location	Notes
Server config file	./config.yaml	overridable via CONFIG_PATH
Server SQLite DB	openflare.db	overridable via database.sqlite_path / SQLITE_PATH
Agent config file	./agent.json	overridable via -config
One-click install Agent config	/opt/openflare-agent/agent.json	default path generated by the install script
Agent data dir	data next to the config file	overridable via data_dir
Relay config file	./relay.json	overridable via -config
One-click install Relay config	/opt/openflare-relay/relay.json	default path generated by the install script
Client config file	./flared.json	overridable via -config
One-click install Client config	/opt/openflared/flared.json	default path generated by the install script

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Server CLI Args

# specify a config file when starting the Server
CONFIG_PATH=/path/to/custom-config.yaml ./openflare-server all

Supported sub-service commands (fused/single-process mode):

• all: starts all services in one process (API + Worker + Scheduler, default).
• api: starts only the API service for the admin panel and node communication.
• worker: starts only the background-task Worker service.
• scheduler: starts only the scheduled-task Scheduler service.

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Server Env Vars vs Config File

All Server core base config is defined in config.yaml, and every field supports env-var overrides (env vars take precedence over the YAML file).

1. App Basic Config (app:)

YAML path	Override env var	Description	Default
app.app_name	APP_NAME	application identifier name	openflare
app.env	APP_ENV	runtime env (development / testing / production)	production
app.addr	APP_ADDR	service listen address and port	:3000
app.node_id	APP_NODE_ID	Snowflake node ID (0-1023); must be unique in multi-instance deploys	1
app.api_prefix	APP_API_PREFIX	route prefix for admin panel and API	/api
app.graceful_shutdown_timeout	APP_GRACEFUL_SHUTDOWN_TIMEOUT	graceful shutdown wait timeout (seconds)	30
app.session_cookie_name	APP_SESSION_COOKIE_NAME	session cookie name	openflare_session_id
app.session_secret	APP_SESSION_SECRET	session signature secret; must be a random long string in production	none (random)
app.session_domain	APP_SESSION_DOMAIN	shared-session cookie scope domain	empty
app.session_age	APP_SESSION_AGE	browser session lifetime (seconds)	86400 (24h)
app.session_http_only	APP_SESSION_HTTP_ONLY	enable the cookie's HttpOnly attribute	false
app.session_secure	APP_SESSION_SECURE	enable the cookie's Secure attribute (HTTPS)	false

2. Relational DB Config (database:)

YAML path	Override env var	Description	Default
database.enabled	DB_ENABLED	enable PostgreSQL; false falls back to SQLite	true
database.sqlite_path	SQLITE_PATH	SQLite DB file path when PostgreSQL disabled	openflare.db
database.host	DB_HOST	PostgreSQL host	127.0.0.1
database.port	DB_PORT	PostgreSQL port	5432
database.username	DB_USERNAME	PostgreSQL username	openflare
database.password	DB_PASSWORD	PostgreSQL password	replace-with-strong-password
database.database	DB_NAME	PostgreSQL database name	openflare
database.ssl_mode	DB_SSL_MODE	PostgreSQL SSL mode	disable
database.time_zone	DB_TIMEZONE	DB session timezone	UTC
database.log_level	DB_LOG_LEVEL	GORM SQL log level (info / warn / error / silent)	info
database.max_idle_conn	DB_MAX_IDLE_CONN	connection pool max idle	16
database.max_open_conn	DB_MAX_OPEN_CONN	connection pool max open	128

3. Redis Config (redis:)

YAML path	Override env var	Description	Default
redis.enabled	REDIS_ENABLED	enable Redis. The async queue and sync depend on it; must be on	true
redis.addrs	REDIS_ADDR	Redis single/cluster address array (env var sets a single address)	["127.0.0.1:6379"]
redis.username	REDIS_USERNAME	Redis username (if any)	empty
redis.password	REDIS_PASSWORD	Redis password	empty
redis.db	REDIS_DB	Redis logical DB number	0
redis.key_prefix	REDIS_KEY_PREFIX	system key prefix in Redis	openflare:
redis.pool_size	REDIS_POOL_SIZE	Redis connection pool size	100
redis.maint_notifications	REDIS_MAINT_NOTIFICATIONS	enable Redis maintenance-notifications negotiation at startup; keep off when compatibility is unclear; restart needed after change	false

4. ClickHouse Config (clickhouse:)

Note: these are OpenFlare client connection params. For ClickHouse server small-host tuning: curl performance.xml to ./config/clickhouse/, then mount it as a single file at the container's config.d/performance.xml — see Start the Server.

YAML path	Override env var	Description	Default
clickhouse.enabled	CLICKHOUSE_ENABLED	enable ClickHouse. Node metrics and access logs are written here at scale. Off by default: missing config or false disables it and the primary DB handles logs/metrics; explicit true or setting CLICKHOUSE_HOST enables it	false
clickhouse.hosts	CLICKHOUSE_HOST	ClickHouse cluster address array (env var sets a single address)	["127.0.0.1:9000"]
clickhouse.username	CLICKHOUSE_USERNAME	ClickHouse username	default
clickhouse.password	CLICKHOUSE_PASSWORD	ClickHouse password	replace-with-clickhouse-password
clickhouse.database	CLICKHOUSE_NAME	ClickHouse database name	openflare
clickhouse.max_idle_conn	-	client idle connections (low by default for small hosts)	8
clickhouse.max_open_conn	-	client max open connections	16
clickhouse.conn_max_lifetime	-	connection max lifetime (seconds)	3600
clickhouse.dial_timeout	-	dial timeout (seconds)	5
clickhouse.block_buffer_size	-	native-protocol block buffer rows	32

5. System Log Config (log:)

YAML path	Override env var	Description	Default
log.level	LOG_LEVEL	global log level (debug / info / warn / error / fatal)	info
log.format	LOG_FORMAT	log format (console readable / json structured)	console
log.output	LOG_OUTPUT	log output (stdout / file)	stdout
log.file_path	-	log file path when output is file	./logs/app.log
log.max_size	-	max single log file size (MB); auto-rotates beyond	100
log.max_age	-	max days to keep rotated log files	30

6. Async Task Worker Queue Config (worker:)

YAML path	Override env var	Description	Default
worker.concurrency	WORKER_CONCURRENCY	max concurrent tasks consumed by the background Worker	20
worker.strict_priority	WORKER_STRICT_PRIORITY	strictly assign consumer threads by queue priority (else weighted round-robin)	false

7. Tracing OpenTelemetry Config (otel:)

YAML path	Override env var	Description	Default
otel.sampling_rate	OTEL_SAMPLING_RATE	global OTel sampling rate. 0.0 no sampling, 1.0 full tracing	0.0
otel.tracer_name	OTEL_TRACER_NAME	global OTel tracer instance name	github.com/Rain-kl/OpenFlare

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Runtime System Config (SystemConfig)

These items are stored in the w_system_configs table. Changes actively notify Redis cache invalidation for dynamic hot-update; admins manage them via the admin UI.

1. Base & Business Runtime Config

Key	Type	Description	Default
site_name	string	admin platform display name	OpenFlare
server_address	string	public access address of the admin console, used to assemble OAuth callbacks and download links	empty
password_login_enabled	bool	allow admin login with normal username/password	true
registration_enabled	bool	allow self-service new-user registration (off by default; root invites or distributes)	false
password_register_enabled	bool	allow direct email/password registration on the frontend	false
oidc_login_enabled	bool	enable OIDC (SSO) third-party passwordless login	true
max_api_keys_per_user	int	max API keys (API Tokens) per admin user	5
login_session_ttl_hours	int	user session lifetime in the browser cookie (hours). 0 = clear on browser close	0
upload_allowed_extensions	string	allowed upload file extensions (comma-separated; empty = unlimited)	jpg,png,webp
file_access_whitelist	json	file business types allowed for public download/access without login (JSON array)	["avatar"]
disk_cache_max_size_mb	int	platform local disk cache max storage (MB)	100
disk_cache_ttl_minutes	int	local disk cache object default TTL (minutes)	60
disk_cache_lru_enabled	bool	use LRU eviction when local disk cache space is low	true
update_upstream_repository	string	GitHub repo for self-update detection	Rain-kl/OpenFlare
storage_config	json	object-storage structured config (JSON): local disk and AWS S3-compatible storage	local-storage mode
relay_frps_web_ui_enabled	bool	enable the embedded frps traffic-monitoring Web UI on relay nodes	false
relay_frps_web_ui_port	int	host port the relay frps monitoring panel listens on	17500
search_engine_indexing_enabled	bool	allow search engines to crawl/index the site	false
menu_display_config	string	menu display structured config (JSON string, format {url: enabled})	{}
pages_max_package_size_mb	int	Pages deployment package upload size cap (MiB, range 1–2048)	100
pages_max_history_count	int	max historical deployments kept per Pages project (0 = unlimited)	20

2. Human Verification (PoW Captcha)

Key	Type	Description	Default
cap_login_enabled	bool	require local PoW anti-brute-force human verification on the login page	false
cap_auto_solve	bool	auto-start background PoW computation on page load (no manual click)	true
cap_challenge_count	int	number of PoW challenges required. More = longer compute (recommended 1–5)	1
cap_challenge_difficulty	int	PoW hash prefix-match difficulty per challenge. Recommended 3-5	4
cap_challenge_size	int	challenge salt length	32
cap_challenge_ttl_seconds	int	max valid time to submit the computed challenge (seconds); auto-invalidates on timeout	600
cap_token_ttl_seconds	int	validity of the login credential after solving (seconds); must log in within the window	1200

3. SMTP Email Config

Key	Type	Description	Default
smtp_host	string	SMTP server address	empty
smtp_port	int	SMTP port (usually 465 SSL or 587 STARTTLS)	465
smtp_username	string	SMTP account email	empty
smtp_password	string	SMTP account auth password/cert key (encrypted on save, never echoed)	empty
email_login_verification_enabled	bool	send a one-time 6-digit code for second-factor auth on email login	false
email_register_verification_enabled	bool	force email verification with a registration code for self-service registration	false

4. Node & Agent Ops Runtime

Key	Type	Description	Default
agent_discovery_token	string	global discovery Token for one-click first-time node registration	none (auto-generated on first visit)
agent_heartbeat_interval	int	standard heartbeat interval dispatched to all Agents (ms)	3000 (3s)
agent_websocket_upgrade_enabled	bool	allow Agents to upgrade to a persistent WebSocket connection after HTTP heartbeat handshake	true
node_offline_threshold	int	no-response threshold (ms) after which a node is marked offline in the admin panel	60000 (60s)
agent_update_repo	string	Release repo source for Agent self-binary updates	Rain-kl/OpenFlare
geoip_provider	string	GeoIP provider, e.g. maxmind, for WAF geo analysis	ipinfo

5. Uptime Kuma Monitoring Sync

Key	Type	Description	Default
uptime_kuma_enabled	bool	auto-sync generated Uptime Kuma HTTP monitors after config release/activation	false
uptime_kuma_url	string	Uptime Kuma instance access URL (with port and path)	empty
uptime_kuma_username	string	Uptime Kuma admin username for sync API auth	empty
uptime_kuma_password	string	Uptime Kuma login password (encrypted on save, never echoed)	empty
uptime_kuma_monitor_scope	string	route scope for auto-generated monitors (all sites or selected)	all
uptime_kuma_selected_sites	string	selected proxied-site Site Name list to monitor (comma-separated)	empty
uptime_kuma_sync_interval	int	differential scan/calibration sync frequency to the Uptime Kuma instance (minutes)	5
uptime_kuma_interval	int	HTTP GET probe period of generated monitors (seconds)	60
uptime_kuma_retry	int	max reconnect retries after probe connection failures	0
uptime_kuma_retry_interval	int	pause between failed reconnect retries (seconds)	60
uptime_kuma_timeout	int	timeout for an HTTP GET monitor request (seconds)	48

6. OpenResty Core Main Config & Rendering Options

Key	Type	Description	Default
openresty_default_server_return_status	int	status code returned for requests hitting no matching route by default	421
openresty_worker_processes	string	nginx worker_processes; fixed integer or auto	auto
openresty_worker_connections	int	nginx worker_connections per-process max connections	4096
openresty_worker_rlimit_nofile	int	nginx worker_rlimit_nofile max open file descriptors	65535
openresty_events_use	string	event polling engine (e.g. epoll preferred on Linux)	epoll
openresty_events_multi_accept_enabled	bool	accept all pending connection handshakes in one batch	true
openresty_keepalive_timeout	int	nginx keepalive_timeout (seconds)	20
openresty_keepalive_requests	int	max requests per reused TCP connection	1000
openresty_client_header_timeout	int	read timeout for the client Request Header (seconds)	15
openresty_client_body_timeout	int	read timeout for the client Request Body (seconds)	15
openresty_client_max_body_size	string	max client request Body size, with a unit like 10m/50m	64m
openresty_large_client_header_buffers	string	buffers for oversized request headers (e.g. 4 16k)	4 16k
openresty_send_timeout	int	max interval for sending Response data to the client (seconds)	30
openresty_resolvers	string	DNS resolver addresses/params for dynamic name resolution on nodes	empty
openresty_proxy_connect_timeout	int	TCP handshake timeout to the origin (seconds)	3
openresty_proxy_send_timeout	int	max interval for writing request data to the origin (seconds)	60
openresty_proxy_read_timeout	int	max wait for origin response data (seconds)	60
openresty_websocket_enabled	bool	auto-load WebSocket-supporting globals and headers in the HTTP section	true
openresty_http3_enabled	bool	render HTTP/3 QUIC dual-stack listen capability in generated nginx listens	true
openresty_proxy_request_buffering_enabled	bool	fully buffer the client Request Body before forwarding to the origin	false
openresty_proxy_buffering_enabled	bool	buffer large origin Response data before forwarding to the user	true
openresty_proxy_buffers	string	nginx proxy response buffer count/size (e.g. 16 16k)	16 16k
openresty_proxy_buffer_size	string	buffer for origin Response Header	8k
openresty_proxy_busy_buffers_size	string	Busy-state buffer cap when response stream is oversized	64k
openresty_gzip_enabled	bool	enable gzip real-time compression on eligible content	true
openresty_gzip_min_length	int	file size threshold for gzip; below it, skip to save CPU	1024 (1KB)
openresty_gzip_comp_level	int	gzip level 1-9; higher = more compression, more CPU	5
openresty_cache_enabled	bool	initialize the proxy cache region (Proxy Cache Path) in global config	false
openresty_cache_path	string	proxy cache temp physical dir on the node	__OPENFLARE_PROXY_CACHE_PATH__
openresty_cache_levels	string	proxy cache directory tree level layout	1:2
openresty_cache_inactive	string	time after which an unaccessed cache file is invalidated from disk	30m
openresty_cache_max_size	string	max disk quota for the proxy cache region on a node	1g
openresty_cache_key_template	string	default proxy cache key template	$scheme$host$request_uri
openresty_cache_lock_enabled	bool	queue/lock origin connections on high-concurrency cache misses for the same expired resource	true
openresty_cache_lock_timeout	string	max queue wait for the proxy cache lock	5s
openresty_cache_use_stale	string	serve stale cache on specific origin errors (500/502/504 etc.)	error timeout updating http_500 http_502 http_503 http_504
openresty_default_limit_conn_per_server	int	default concurrent-connection cap per server when a site has no config; 0 = off	0
openresty_default_limit_conn_per_ip	int	default per-IP concurrent cap when a site has no config; 0 = off	0
openresty_default_limit_rate	string	default per-request bandwidth when a site has no config (e.g. 512k); empty = off	empty
openresty_default_limit_req_per_ip	string	default per-IP request rate limit when a site has no config (e.g. 10r/s, 100r/m); empty = off	empty
openresty_main_config_template	string	fully rewrite the OpenResty nginx.conf skeleton template	empty (built-in default skeleton)

7. Origin Error Page

Global origin error page config; written into the config version snapshot and distributed to edge Agents on release/rollback. Only affects reverse proxy routes; Pages static routes are unaffected. Admin entry:「Website Management → Error Page」. Design: Origin Error Page Design.

Key	Type	Description	Default
origin_error_page_enabled	bool	enable the global origin error page. When on, matching status codes from origin/gateway are replaced by custom/default HTML with the HTTP status kept; when off, no directives are generated and pass-through resumes. Requires a config release to take effect	true
origin_error_page_get_only	bool	only apply to GET requests. When on, only matching GET error statuses return the custom error page; POST/PUT and other methods pass through the origin response (original status and body unchanged)	false
origin_error_page_status_codes	json	status code tag JSON array triggering the error page. Supports single codes (e.g. 522) and closed ranges (e.g. 500-599); single codes and range endpoints must be in 400–599, with lo ≤ hi. The expanded result must not be empty when enabled	["500-599"]
origin_error_page_html	string	custom error page HTML. Empty uses the built-in OpenFlare default template (minimal white); supports (matches the HTTP status) and (request Host). Max 256 KiB (bytes). Don't embed untrusted third-party scripts	empty

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8. Log Database

Runtime config after log-store decoupling: the log primary DB is managed by the「Switch Log Database」task (internal/protected keys, forbidden for manual admin edits); access-log retention days are set per storage DB in business config; performance metrics (CPU/memory/disk/network) decay fast and use a shared short retention independent of the access-log retention config.

Key	Type	Description	Default
log_database	string	current log primary DB (postgres / sqlite / clickhouse). Internal protected key: only written by the「Switch Log Database」migration task; admins can't create/modify manually	follows the primary DB (postgres when PostgreSQL enabled, else sqlite; clickhouse preferred when ClickHouse enabled)
log_db_migration	string	log migration freeze marker (migrating or empty). Internal protected key: only the migration task writes it; while set, log writes return 503「log DB migrating, not writable」	empty
log_retention_days_postgres	int	access-log retention days in the PostgreSQL log DB (expired logs deleted by the daily garbage-collection task)	30
log_retention_days_sqlite	int	access-log retention days in the SQLite log DB	30
log_retention_days_clickhouse	int	access-log retention days in the ClickHouse log DB	30
metric_retention_days	int	performance metric (CPU/memory/disk/network) retention days; shared short retention across the three DBs (independent of access-log retention)	3

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Frontend Build Env Vars

Env var	Purpose	Default
WAVELET_BACKEND_URL	backend address for server-side rendering and dev proxy	http://localhost:3000
NEXT_PUBLIC_WAVELET_BACKEND_URL	backend address for browser API requests; empty = same-origin	empty
NEXT_PUBLIC_APP_VERSION	displayed frontend version	dev

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Agent Env Vars

Env var	Purpose	Default
LOG_LEVEL	Agent log level	info
OPENFLARE_SERVER_URL	control-plane address, overrides agent.json	empty
OPENFLARE_AGENT_TOKEN	node-specific auth Token, overrides agent.json	empty
OPENFLARE_DISCOVERY_TOKEN	first-time auto-registration Token, overrides agent.json	empty
OPENFLARE_NODE_NAME	node name, overrides agent.json	empty
OPENFLARE_NODE_IP	node IP, overrides agent.json	empty
OPENFLARE_DATA_DIR	Agent data dir, overrides agent.json	empty
OPENFLARE_OPENRESTY_PATH	OpenResty binary path, overrides agent.json	empty
OPENFLARE_PAGES_DIR	Pages static deployment dir, overrides agent.json	empty
OPENFLARE_HEARTBEAT_INTERVAL	heartbeat interval, overrides agent.json	empty
OPENFLARE_REQUEST_TIMEOUT	request timeout, overrides agent.json	empty
OPENFLARE_OPENRESTY_OBSERVABILITY_PORT	local observability port, overrides agent.json	empty
OPENFLARE_MMDB_PATH	WAF GeoIP mmdb path, overrides agent.json	empty
OPENFLARE_MMDB_UPDATE_INTERVAL	WAF GeoIP mmdb update interval, overrides agent.json	empty
OPENFLARE_MMDB_DOWNLOAD_URL	WAF GeoIP mmdb download URL, overrides agent.json	empty
OPENFLARE_CITY_MMDB_PATH	WAF City MMDB path, overrides agent.json	empty
OPENFLARE_CITY_MMDB_DOWNLOAD_URL	WAF City MMDB download URL, overrides agent.json	empty

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Agent CLI Args and Config Fields

CLI Args

• -config: Agent config file path, default ./agent.json.

Config File Fields (agent.json)

Field	Purpose	Required	Default/Behavior
server_url	control-plane address	yes	none
agent_token	node-specific auth Token	one of two with discovery_token	empty
discovery_token	global Token for first-time auto-registration	one of two with agent_token	empty
node_name	node name	no	hostname automatically
node_ip	node IP	no	auto-detected, prefers the public egress IP; falls back to local NIC detection on failure
openresty_path	OpenResty binary path	no	openresty
openresty_observability_port	local observability & OpenResty health-check port	no	18081
data_dir	Agent data dir	no	data next to the config file
main_config_path	OpenResty main config write path	no	data_dir/etc/nginx/nginx.conf
route_config_path	route config write path	no	data_dir/etc/nginx/conf.d/openflare_routes.conf
access_log_path	OpenResty access log path	no	data_dir/var/log/openflare/access.log
cert_dir	certificate write dir	no	data_dir/etc/nginx/certs
openresty_cert_dir	certificate dir read by the OpenResty config	no	same as cert_dir
lua_dir	Lua scripts & static assets write dir	no	data_dir/etc/nginx/lua
openresty_lua_dir	Lua dir read by the OpenResty config	no	same as lua_dir
runtime_config_dir	Agent runtime config write dir, e.g. pow_config.json	no	data_dir/etc/openflare
pages_dir	Pages deployment package extraction & current deploy dir	no	data_dir/var/lib/openflare/pages
mmdb_path	WAF GeoIP mmdb file path	no	data_dir/etc/openflare/GeoLite2-Country.mmdb
city_mmdb_path	WAF City MMDB file path	no	data_dir/etc/openflare/GeoLite2-City.mmdb
mmdb_update_interval	WAF GeoIP mmdb update interval	no	86400000 ms (24h)
mmdb_download_url	WAF GeoIP mmdb periodic update URL	no	GeoLite2 Country update URL; first download when the disk file is missing (Docker images COPY default-path files)
city_mmdb_download_url	WAF City MMDB periodic update URL	no	GeoLite2 City update URL; first download when the disk file is missing (Docker images COPY default-path files)
observability_buffer_path	observability backfill buffer file path	no	data_dir/var/lib/openflare/observability-buffer.json
observability_replay_minutes	auto-backfill recent observability window (minutes)	no	60
state_path	Agent local state file path	no	data_dir/var/lib/openflare/agent-state.json
heartbeat_interval	heartbeat interval	no	3000 ms
request_timeout	HTTP request timeout	no	10000 ms

---

Relay Env Vars and Config Fields

Env Vars

• LOG_LEVEL: Relay log level, default info.
• Supports OPENFLARE_SERVER_URL, OPENFLARE_AGENT_TOKEN, OPENFLARE_DISCOVERY_TOKEN, OPENFLARE_NODE_NAME, OPENFLARE_NODE_IP, OPENFLARE_DATA_DIR, OPENFLARE_FRPS_PATH overrides.

CLI Args

• -config: Relay config file path, default ./relay.json.

Config File Fields (relay.json)

Field	Purpose	Required	Default/Behavior
server_url	control-plane address	yes	none
agent_token	relay node-specific auth Token	one of two with discovery_token	empty
discovery_token	global Token for first-time auto-registration	one of two with agent_token	empty
node_name	node name	no	hostname automatically
node_ip	relay node IP for receiving tunnel traffic	no	auto-detected, prefers the public egress IP; falls back to NIC detection on failure
frps_path	frps binary path	no	frps (found on system PATH)
data_dir	Relay runtime data dir	no	data next to the config file
state_path	Relay local state file path	no	data_dir/relay-state.json
heartbeat_interval	heartbeat interval	no	10000 ms
request_timeout	HTTP request timeout	no	10000 ms

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OpenFlared (Client) Env Vars and Config Fields

Env Vars

• LOG_LEVEL: Client log level, default info.
• Supports OPENFLARE_SERVER_URL, OPENFLARE_TUNNEL_TOKEN, OPENFLARE_DATA_DIR, OPENFLARE_FRPC_PATH overrides.

CLI Args

• -config: Client config file path, default ./flared.json.

Config File Fields (flared.json)

Field	Purpose	Required	Default/Behavior
server_url	control-plane address	yes	none
tunnel_token	tunnel-specific auth Token	yes	none
frpc_path	frpc binary path	no	frpc (found on system PATH)
data_dir	Client runtime data dir	no	data next to the config file
state_path	Client local state file path	no	data_dir/flared-state.json
heartbeat_interval	heartbeat interval	no	10000 ms
sync_interval	config pull/sync interval	no	30000 ms
request_timeout	HTTP request timeout	no	10000 ms