367 lines
13 KiB
Go
367 lines
13 KiB
Go
package config
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// --- LogWisp Configuration Options ---
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// Config is the top-level configuration structure for the LogWisp application
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type Config struct {
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// Top-level flags for application control
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ShowVersion bool `toml:"version"`
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Quiet bool `toml:"quiet"`
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// Runtime behavior flags
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StatusReporter bool `toml:"status_reporter"`
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ConfigAutoReload bool `toml:"auto_reload"`
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// Configuration file path
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ConfigFile string `toml:"config_file"`
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// Existing fields
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Logging *LogConfig `toml:"logging"`
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Pipelines []PipelineConfig `toml:"pipelines"`
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}
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// --- Logging Options ---
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// LogConfig represents the logging configuration for the LogWisp application itself
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type LogConfig struct {
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// Output mode: "file", "stdout", "stderr", "split", "all", "none"
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Output string `toml:"output"`
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// Log level: "debug", "info", "warn", "error"
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Level string `toml:"level"`
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// Format: "raw", "txt", "json"
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Format string `toml:"format"`
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// Sanitization policy for console output
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Sanitization string `toml:"sanitization"`
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// File output settings (when Output includes "file" or "all")
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File *LogFileConfig `toml:"file"`
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// Console output settings
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Console *LogConsoleConfig `toml:"console"`
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}
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// LogFileConfig defines settings for file-based application logging
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type LogFileConfig struct {
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// Directory for log files
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Directory string `toml:"directory"`
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// Base name for log files
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Name string `toml:"name"`
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// Maximum size per log file in MB
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MaxSizeMB int64 `toml:"max_size_mb"`
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// Maximum total size of all logs in MB
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MaxTotalSizeMB int64 `toml:"max_total_size_mb"`
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// Log retention in hours (0 = disabled)
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RetentionHours float64 `toml:"retention_hours"`
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}
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// LogConsoleConfig defines settings for console-based application logging
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type LogConsoleConfig struct {
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// Target for console output: "stdout", "stderr"
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Target string `toml:"target"`
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}
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// --- Pipeline ---
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// PipelineConfig defines a complete data flow from sources to sinks
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type PipelineConfig struct {
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Name string `toml:"name"`
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Flow *FlowConfig `toml:"flow"`
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PluginSources []PluginSourceConfig `toml:"plugin_sources,omitempty"`
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PluginSinks []PluginSinkConfig `toml:"plugin_sinks,omitempty"`
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}
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// --- Flow ---
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// FlowConfig consolidates all processing stages between sources and sinks
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type FlowConfig struct {
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Heartbeat *HeartbeatConfig `toml:"heartbeat"`
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RateLimit *RateLimitConfig `toml:"rate_limit"`
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Filters []FilterConfig `toml:"filters"`
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Format *FormatConfig `toml:"format"`
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}
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// --- Heartbeat Options ---
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// HeartbeatConfig defines settings for periodic keep-alive or status messages
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type HeartbeatConfig struct {
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Enabled bool `toml:"enabled"`
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IntervalMS int64 `toml:"interval_ms"`
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IncludeTimestamp bool `toml:"include_timestamp"`
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IncludeStats bool `toml:"include_stats"`
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Format string `toml:"format"`
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}
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// --- Formatter Options ---
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// FormatConfig is a polymorphic struct representing log entry formatting options
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type FormatConfig struct {
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Type string `toml:"type"` // "json", "txt", "raw"
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Flags int64 `toml:"flags"`
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TimestampFormat string `toml:"timestamp_format"`
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SanitizerPolicy string `toml:"sanitizer_policy"` // "raw", "json", "txt", "shell"
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}
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// --- Rate Limit Options ---
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// RateLimitPolicy defines the action to take when a rate limit is exceeded
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type RateLimitPolicy int
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const (
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// PolicyPass allows all logs through, effectively disabling the limiter
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PolicyPass RateLimitPolicy = iota
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// PolicyDrop drops logs that exceed the rate limit
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PolicyDrop
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)
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// RateLimitConfig defines the configuration for pipeline-level rate limiting
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type RateLimitConfig struct {
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// Rate is the number of log entries allowed per second. Default: 0 (disabled)
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Rate float64 `toml:"rate"`
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// Burst is the maximum number of log entries that can be sent in a short burst. Defaults to the Rate
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Burst float64 `toml:"burst"`
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// Policy defines the action to take when the limit is exceeded. "pass" or "drop"
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Policy string `toml:"policy"`
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// MaxEntrySizeBytes is the maximum allowed size for a single log entry. 0 = no limit
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MaxEntrySizeBytes int64 `toml:"max_entry_size_bytes"`
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}
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// --- Filter Options ---
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// FilterType represents the filter's behavior (include or exclude)
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type FilterType string
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const (
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// FilterTypeInclude specifies that only matching logs will pass
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FilterTypeInclude FilterType = "include" // Whitelist - only matching logs pass
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// FilterTypeExclude specifies that matching logs will be dropped
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FilterTypeExclude FilterType = "exclude" // Blacklist - matching logs are dropped
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)
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// FilterLogic represents how multiple filter patterns are combined
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type FilterLogic string
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const (
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// FilterLogicOr specifies that a match on any pattern is sufficient
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FilterLogicOr FilterLogic = "or" // Match any pattern
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// FilterLogicAnd specifies that all patterns must match
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FilterLogicAnd FilterLogic = "and" // Match all patterns
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)
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// FilterConfig represents the configuration for a single filter
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type FilterConfig struct {
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Type FilterType `toml:"type"`
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Logic FilterLogic `toml:"logic"`
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Patterns []string `toml:"patterns"`
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}
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// --- Source Options ---
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// PluginSourceConfig represents a source plugin instance configuration
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type PluginSourceConfig struct {
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ID string `toml:"id"`
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Type string `toml:"type"`
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Config map[string]any `toml:"config"`
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ConfigFile string `toml:"config_file,omitempty"` // TODO: support for include/source mechanism for nested config
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}
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// // SourceConfig is a polymorphic struct representing a single data source
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// type SourceConfig struct {
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// Type string `toml:"type"`
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//
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// // Polymorphic - only one populated based on type
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// File *FileSourceOptions `toml:"file,omitempty"`
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// Console *ConsoleSourceOptions `toml:"console,omitempty"`
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// }
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// NullSourceOptions defines settings for a null source (no configuration needed)
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type NullSourceOptions struct{}
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// RandomSourceOptions defines settings for a random log generator source
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type RandomSourceOptions struct {
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IntervalMS int64 `toml:"interval_ms"`
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JitterMS int64 `toml:"jitter_ms"`
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Format string `toml:"format"`
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Length int64 `toml:"length"`
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Special bool `toml:"special"`
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}
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// FileSourceOptions defines settings for a file-based source
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type FileSourceOptions struct {
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Directory string `toml:"directory"`
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Pattern string `toml:"pattern"` // glob pattern
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CheckIntervalMS int64 `toml:"check_interval_ms"`
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}
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// ConsoleSourceOptions defines settings for a stdin-based source
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type ConsoleSourceOptions struct {
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BufferSize int64 `toml:"buffer_size"`
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}
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// TCPChainSourceOptions defines settings for a stdlib TCP listener ingesting
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// NDJSON entries from upstream logwisp tcp_chain sinks
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type TCPChainSourceOptions struct {
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TLS *TLSOptions `toml:"tls"`
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Host string `toml:"host"`
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Port int64 `toml:"port"`
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BufferSize int64 `toml:"buffer_size"`
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MaxConnections int64 `toml:"max_connections"` // 0 = unlimited
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ReadTimeoutMS int64 `toml:"read_timeout_ms"` // per-connection idle deadline, 0 = none
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HelloTimeoutMS int64 `toml:"hello_timeout_ms"` // preamble deadline
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TrustNode bool `toml:"trust_node"` // false: force node label from remote address
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// Future: password auth block
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}
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// HTTPChainSourceOptions defines settings for a stdlib HTTP listener ingesting
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// NDJSON batches from upstream logwisp http_chain sinks
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type HTTPChainSourceOptions struct {
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TLS *TLSOptions `toml:"tls"`
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Host string `toml:"host"`
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Port int64 `toml:"port"`
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IngestPath string `toml:"ingest_path"`
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BufferSize int64 `toml:"buffer_size"`
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MaxBodyBytes int64 `toml:"max_body_bytes"` // per-request cap
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ReadTimeoutMS int64 `toml:"read_timeout_ms"` // full request read deadline
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TrustNode bool `toml:"trust_node"` // false: force node label from remote address
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// Future: password auth block
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}
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// --- Sink Options ---
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// PluginSinkConfig represents a sink plugin instance configuration
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type PluginSinkConfig struct {
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ID string `toml:"id"`
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Type string `toml:"type"`
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Config map[string]any `toml:"config"`
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ConfigFile string `toml:"config_file,omitempty"` // TODO: support for include/source mechanism for nested config
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}
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// // SinkConfig is a polymorphic struct representing a single data sink
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// type SinkConfig struct {
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// Type string `toml:"type"`
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//
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// // Polymorphic - only one populated based on type
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// Console *ConsoleSinkOptions `toml:"console,omitempty"`
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// File *FileSinkOptions `toml:"file,omitempty"`
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// }
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// NullSinkOptions defines settings for a null sink (no configuration needed)
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type NullSinkOptions struct{}
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// ConsoleSinkOptions defines settings for a console-based sink
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type ConsoleSinkOptions struct {
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Target string `toml:"target"` // "stdout", "stderr"
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BufferSize int64 `toml:"buffer_size"`
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}
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// FileSinkOptions defines settings for a file-based sink
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type FileSinkOptions struct {
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Directory string `toml:"directory"`
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Name string `toml:"name"`
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MaxSizeMB int64 `toml:"max_size_mb"`
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MaxTotalSizeMB int64 `toml:"max_total_size_mb"`
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MinDiskFreeMB int64 `toml:"min_disk_free_mb"`
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RetentionHours float64 `toml:"retention_hours"`
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BufferSize int64 `toml:"buffer_size"`
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FlushIntervalMs int64 `toml:"flush_interval_ms"`
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}
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// TCPSinkOptions defines settings for a TCP server sink
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type TCPSinkOptions struct {
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TLS *TLSOptions `toml:"tls"`
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Host string `toml:"host"`
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Port int64 `toml:"port"`
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BufferSize int64 `toml:"buffer_size"` // sink input queue
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ClientBufferSize int64 `toml:"client_buffer_size"` // per-client send queue
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WriteTimeoutMS int64 `toml:"write_timeout_ms"` // per-write deadline
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KeepAlive bool `toml:"keep_alive"`
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KeepAlivePeriodMS int64 `toml:"keep_alive_period_ms"`
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MaxConnections int64 `toml:"max_connections"` // 0 = unlimited
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// Future: password auth block
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}
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// HTTPSinkOptions defines settings for an HTTP SSE server sink
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type HTTPSinkOptions struct {
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TLS *TLSOptions `toml:"tls"`
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Host string `toml:"host"`
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Port int64 `toml:"port"`
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StreamPath string `toml:"stream_path"`
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StatusPath string `toml:"status_path"`
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BufferSize int64 `toml:"buffer_size"` // sink input queue
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ClientBufferSize int64 `toml:"client_buffer_size"` // per-client send queue
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WriteTimeoutMS int64 `toml:"write_timeout_ms"` // per-SSE-write deadline, 0 = none
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MaxConnections int64 `toml:"max_connections"` // 0 = unlimited
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// Future: password auth block
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}
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// TCPChainSinkOptions defines settings for a stdlib TCP client forwarding
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// entries to a downstream logwisp tcp_chain source
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type TCPChainSinkOptions struct {
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TLS *TLSOptions `toml:"tls"`
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Node string `toml:"node"` // origin label, default: os.Hostname()
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Host string `toml:"host"`
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Port int64 `toml:"port"`
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BufferSize int64 `toml:"buffer_size"`
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DialTimeoutMS int64 `toml:"dial_timeout_ms"`
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WriteTimeoutMS int64 `toml:"write_timeout_ms"`
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BackoffMinMS int64 `toml:"backoff_min_ms"`
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BackoffMaxMS int64 `toml:"backoff_max_ms"`
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KeepAlivePeriodMS int64 `toml:"keep_alive_period_ms"`
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KeepAlive bool `toml:"keep_alive"`
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// Future: password auth block
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}
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// HTTPChainSinkOptions defines settings for a stdlib HTTP client posting
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// NDJSON batches to a downstream logwisp http_chain source
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type HTTPChainSinkOptions struct {
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TLS *TLSOptions `toml:"tls"`
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Node string `toml:"node"` // origin label, default: os.Hostname()
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Host string `toml:"host"`
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Port int64 `toml:"port"`
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IngestPath string `toml:"ingest_path"`
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BufferSize int64 `toml:"buffer_size"`
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MaxBatchCount int64 `toml:"max_batch_count"`
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MaxBatchBytes int64 `toml:"max_batch_bytes"`
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FlushIntervalMS int64 `toml:"flush_interval_ms"`
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RequestTimeoutMS int64 `toml:"request_timeout_ms"` // covers dial + write + response
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BackoffMinMS int64 `toml:"backoff_min_ms"`
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BackoffMaxMS int64 `toml:"backoff_max_ms"`
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// Future: password auth block
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}
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// --- TLS Options ---
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// TLSOptions defines transport security for network sources and sinks.
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// One shape serves both roles so the config block is uniform:
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// - Listeners (tcp/http sinks, tcp_chain/http_chain sources) use
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// cert_file/key_file as server identity; client_auth/client_ca_file
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// require and verify peer certificates (mTLS).
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// - Dialers (tcp_chain/http_chain sinks) use ca_file/server_name to verify
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// the server; cert_file/key_file present a client identity (mTLS).
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type TLSOptions struct {
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Enabled bool `toml:"enabled"`
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// Local identity: required for listeners, optional for dialers (mTLS)
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CertFile string `toml:"cert_file"`
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KeyFile string `toml:"key_file"`
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// Listener-side peer verification (mTLS)
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ClientAuth bool `toml:"client_auth"`
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ClientCAFile string `toml:"client_ca_file"`
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// Dialer-side peer verification
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CAFile string `toml:"ca_file"` // empty = system trust store
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ServerName string `toml:"server_name"` // default: config host
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InsecureSkipVerify bool `toml:"insecure_skip_verify"`
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// Minimum protocol version: "1.2" | "1.3" (default "1.3")
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MinVersion string `toml:"min_version"`
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}
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