Following Container Logs

If you wish to follow container logs, you can set up LogConsumers. The log following functionality follows a producer-consumer model. You will need to explicitly start and stop the producer. As logs are written to either stdout, or stderr (stdin is not supported) they will be forwarded (produced) to any associated LogConsumers. You can associate LogConsumers with the .FollowOutput function.

Please note if you start the producer you should always stop it explicitly.

For example, this consumer will just add logs to a slice

type TestLogConsumer struct {
    Msgs []string
}

func (g *TestLogConsumer) Accept(l Log) {
    g.Msgs = append(g.Msgs, string(l.Content))
}

This can be used like so:

g := TestLogConsumer{
    Msgs: []string{},
}

err := c.StartLogProducer(ctx)
if err != nil {
    // do something with err
}

c.FollowOutput(&g)

// some stuff happens...

err = c.StopLogProducer()
if err != nil {
    // do something with err
}