66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
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package lncfg
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import (
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"fmt"
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"time"
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)
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var (
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// MinHealthCheckInterval is the minimum interval we allow between
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// health checks.
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MinHealthCheckInterval = time.Minute
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// MinHealthCheckTimeout is the minimum timeout we allow for health
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// check calls.
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MinHealthCheckTimeout = time.Second
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// MinHealthCheckBackoff is the minimum back off we allow between health
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// check retries.
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MinHealthCheckBackoff = time.Second
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)
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// HealthCheckConfig contains the configuration for the different health checks
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// the lnd runs.
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type HealthCheckConfig struct {
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ChainCheck *CheckConfig `group:"chainbackend" namespace:"chainbackend"`
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}
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// Validate checks the values configured for our health checks.
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func (h *HealthCheckConfig) Validate() error {
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return h.ChainCheck.validate("chain backend")
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}
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type CheckConfig struct {
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Interval time.Duration `long:"interval" description:"How often to run a health check."`
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Attempts int `long:"attempts" description:"The number of calls we will make for the check before failing. Set this value to 0 to disable a check."`
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Timeout time.Duration `long:"timeout" description:"The amount of time we allow the health check to take before failing due to timeout."`
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Backoff time.Duration `long:"backoff" description:"The amount of time to back-off between failed health checks."`
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}
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// validate checks the values in a health check config entry if it is enabled.
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func (c *CheckConfig) validate(name string) error {
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if c.Attempts == 0 {
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return nil
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}
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if c.Backoff < MinHealthCheckBackoff {
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return fmt.Errorf("%v backoff: %v below minimum: %v", name,
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c.Backoff, MinHealthCheckBackoff)
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}
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if c.Timeout < MinHealthCheckTimeout {
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return fmt.Errorf("%v timeout: %v below minimum: %v", name,
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c.Timeout, MinHealthCheckTimeout)
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}
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if c.Interval < MinHealthCheckInterval {
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return fmt.Errorf("%v interval: %v below minimum: %v", name,
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c.Interval, MinHealthCheckInterval)
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}
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return nil
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}
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