97 lines
2.9 KiB
Go
97 lines
2.9 KiB
Go
// Package config loads kamado-api configuration from environment variables.
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// Missing required values are a hard error at startup; optional values get
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// documented defaults.
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package config
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import (
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"fmt"
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"os"
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"strconv"
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"time"
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)
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type Config struct {
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// HTTP server
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ListenAddr string
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// CKPool socket
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CKPoolSockDir string
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// Bitcoin Core RPC
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BitcoinRPCURL string // full URL e.g. http://bitcoind:8332
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BitcoinRPCUser string
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BitcoinRPCPassword string
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BitcoinRPCTimeout time.Duration
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// ZMQ (Phase 2b)
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BitcoinZMQBlock string // e.g. tcp://bitcoind:28332, empty to disable
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// CKPool log file, for block-solve detection (Phase 2b)
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CKPoolLogFile string
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// SQLite DB path for persistence (Phase 2b)
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DBPath string
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// Poll interval for refreshing ckpool stats
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PollInterval time.Duration
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// Optional mempool.space-compatible explorer base URL. Empty means
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// the UI uses the public mempool.space; non-empty means the user
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// has pointed Kamado at their own instance via the StartOS config.
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MempoolBaseURL string
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// Optional JSON array describing ckpool's serverurl[] binds, so the
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// dashboard can name the transport a miner connected over instead of
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// guessing from the bind index. Rendered by whoever writes
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// ckpool.conf; empty means "undeclared" and the UI falls back. Parsed
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// in main (the concrete type lives with the snapshot it belongs to).
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StratumServersJSON string
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}
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func FromEnv() (*Config, error) {
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cfg := &Config{
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ListenAddr: getenv("LISTEN_ADDR", ":8080"),
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CKPoolSockDir: getenv("CKPOOL_SOCKDIR", "/run/ckpool"),
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BitcoinRPCURL: os.Getenv("BITCOIN_RPC_URL"),
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BitcoinRPCUser: os.Getenv("BITCOIN_RPC_USER"),
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BitcoinRPCPassword: os.Getenv("BITCOIN_RPC_PASSWORD"),
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BitcoinRPCTimeout: getenvDuration("BITCOIN_RPC_TIMEOUT", 10*time.Second),
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BitcoinZMQBlock: os.Getenv("BITCOIN_ZMQ_BLOCK"),
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CKPoolLogFile: getenv("CKPOOL_LOGFILE", "/var/log/ckpool/ckpool.log"),
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DBPath: getenv("DB_PATH", "/var/lib/kamado/kamado.db"),
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PollInterval: getenvDuration("POLL_INTERVAL", 5*time.Second),
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MempoolBaseURL: os.Getenv("MEMPOOL_BASE_URL"),
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StratumServersJSON: os.Getenv("STRATUM_SERVERS"),
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}
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if cfg.BitcoinRPCURL == "" {
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return nil, fmt.Errorf("BITCOIN_RPC_URL is required")
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}
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if cfg.BitcoinRPCUser == "" || cfg.BitcoinRPCPassword == "" {
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return nil, fmt.Errorf("BITCOIN_RPC_USER and BITCOIN_RPC_PASSWORD are required")
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}
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return cfg, nil
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}
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func getenv(key, def string) string {
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if v := os.Getenv(key); v != "" {
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return v
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}
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return def
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}
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func getenvDuration(key string, def time.Duration) time.Duration {
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v := os.Getenv(key)
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if v == "" {
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return def
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}
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// Accept both Go duration syntax ("5s", "10s") and bare seconds ("10").
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if d, err := time.ParseDuration(v); err == nil {
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return d
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}
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if n, err := strconv.Atoi(v); err == nil {
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return time.Duration(n) * time.Second
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}
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return def
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}
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