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Package nettest

Variables

CmdNettest is used by agnhost Cobra.

var CmdNettest = &cobra.Command{
    Use:   "nettest",
    Short: "Starts a tiny web server for checking networking connectivity",
    Long: `Starts a web server for checking networking connectivity on the given "--port".

Will dial out to, and expect to hear from, every pod that is a member of the service
passed in the flag "--service".

The web server will have the following endpoints:

- "/read": to see the current state, or "/quit" to shut down.

- "/status": to see "pass/running/fail" determination. (literally, it will return
one of those words.)

- "/write": is used by other network test pods to register connectivity.`,
    Args: cobra.MaximumNArgs(0),
    Run:  main,
}

type State ¶

State tracks the internal state of our little http server. It's returned verbatim over the /read endpoint.

type State struct {
    // Hostname is set once and never changed-- it's always safe to read.
    Hostname string

    // The below fields require that lock is held before reading or writing.
    Sent                 map[string]int
    Received             map[string]int
    Errors               []string
    Log                  []string
    StillContactingPeers bool
    // contains filtered or unexported fields
}

func (*State) Logf ¶

func (s *State) Logf(format string, args ...interface{})

Logf writes to the log message list. s must not be locked. s's Log member will drop an old message if it would otherwise become longer than 500 messages.

type WritePost ¶

WritePost is the format that (json encoded) requests to the /write handler should take.

type WritePost struct {
    Source string
    Dest   string
}

type WriteResp ¶

WriteResp is returned by /write

type WriteResp struct {
    Hostname string
}