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Add message queue trigger support (#218)

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Adds support for message queue triggers based on the NATS-Streaming message queue.

This lets the user map a queue topic to a function, and optionally send the function's response into another queue topic.

The message queue trigger manager is designed to be message queue independent, so we should be able add support for more queues by adding implementations for the relatively simple mqtrigger.MessageQueue interface.
This commit is contained in:
Ta-Ching Chen
2017-07-05 17:19:58 -07:00
committed by Soam Vasani
parent 0fd60eab3b
commit e4fe007838
24 changed files with 1417 additions and 10 deletions
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fission/main.go
+16
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@@ -82,6 +82,21 @@ func main() {
{Name: "list", Usage: "List Time triggers", Flags: []cli.Flag{}, Action: ttList},
}
// Message queue trigger
mqtNameFlag := cli.StringFlag{Name: "name", Usage: "Message queue Trigger name"}
mqtFnNameFlag := cli.StringFlag{Name: "function", Usage: "Function name"}
mqtFnUidFlag := cli.StringFlag{Name: "uid", Usage: "Function UID (optional; uses latest if unspecified)"}
mqtMQTypeFlag := cli.StringFlag{Name: "mqtype", Usage: "Message queue type, e.g. nats-streaming (optional; uses \"nats-streaming\" if unspecified)"}
mqtTopicFlag := cli.StringFlag{Name: "topic", Usage: "Message queue Topic the trigger listens on"}
mqtRespTopicFlag := cli.StringFlag{Name: "resptopic", Usage: "Topic that the function response is sent on (optional; response discarded if unspecified)"}
mqtSubcommands := []cli.Command{
{Name: "create", Aliases: []string{"add"}, Usage: "Create Message queue trigger", Flags: []cli.Flag{mqtNameFlag, mqtFnNameFlag, mqtFnUidFlag, mqtMQTypeFlag, mqtTopicFlag, mqtRespTopicFlag}, Action: mqtCreate},
{Name: "get", Usage: "Get message queue trigger", Flags: []cli.Flag{}, Action: mqtGet},
{Name: "update", Usage: "Update message queue trigger", Flags: []cli.Flag{mqtNameFlag, mqtTopicFlag, mqtRespTopicFlag}, Action: mqtUpdate},
{Name: "delete", Usage: "Delete message queue trigger", Flags: []cli.Flag{mqtNameFlag}, Action: mqtDelete},
{Name: "list", Usage: "List message queue triggers", Flags: []cli.Flag{mqtMQTypeFlag}, Action: mqtList},
}
// environments
envNameFlag := cli.StringFlag{Name: "name", Usage: "Environment name"}
envImageFlag := cli.StringFlag{Name: "image", Usage: "Environment image URL"}
@@ -112,6 +127,7 @@ func main() {
{Name: "function", Aliases: []string{"fn"}, Usage: "Create, update and manage functions", Subcommands: fnSubcommands},
{Name: "httptrigger", Aliases: []string{"ht", "route"}, Usage: "Manage HTTP triggers (routes) for functions", Subcommands: htSubcommands},
{Name: "timetrigger", Aliases: []string{"tt", "timer"}, Usage: "Manage Time triggers (timers) for functions", Subcommands: ttSubcommands},
{Name: "mqtrigger", Aliases: []string{"mqt", "messagequeue"}, Usage: "Manage message queue triggers for functions", Subcommands: mqtSubcommands},
{Name: "environment", Aliases: []string{"env"}, Usage: "Manage environments", Subcommands: envSubcommands},
{Name: "watch", Aliases: []string{"w"}, Usage: "Manage watches", Subcommands: wSubCommands},