66 lines
3 KiB
ReStructuredText
66 lines
3 KiB
ReStructuredText
====================
|
|
Overall architecture
|
|
====================
|
|
|
|
A simple representation of the architectore would be the producer -> kafka ->
|
|
consumer -> postgres, e.g.::
|
|
|
|
|
|
+---------------+
|
|
+--------------+ | aiven |
|
|
| checker |+--------> kafka |
|
|
+--------------+ +-------+-------+
|
|
|
|
|
|
|
|
|
|
|
+-------v-------+
|
|
| consumer |
|
|
+-------+-------+
|
|
|
|
|
|
|
|
|
|
|
+-------v-------+
|
|
| aiven |
|
|
| PostgreSQL |
|
|
+---------------+
|
|
|
|
|
|
|
|
|
|
A more detailed graph includes the inner workings of the services. The site
|
|
checker module creates an asyncio task running periodically for every site in
|
|
the config, feeding an asyncio [mpsc] Queue from which the consumer is
|
|
forwarding messages in the kafka topic specified in the configuration::
|
|
|
|
|
|
+ periodical asyncio tasks ----+
|
|
| |
|
|
| |
|
|
| +-------------+ |
|
|
| | example.com +--------+---------+
|
|
| +-------------+ | +----v----+ +------------+
|
|
| +-----------+ | | asyncio | | |
|
|
| | aiven.com +--------+----> Queue +-------> producer |
|
|
| +-----------+ | +----^----+ | |
|
|
| +------------+ | | +-----+------+
|
|
| | google.com +--------+---------+ |
|
|
| +------------+ | |
|
|
| | |
|
|
| | |
|
|
+------------------------------+ |
|
|
|
|
|
+--------v---------+
|
|
| |
|
|
| aiven kafka |
|
|
| |
|
|
+--------+---------+
|
|
|
|
|
+----------------+ |
|
|
| | |
|
|
| aiven | +------v------+
|
|
| PostgreSQL <-----------+ consumer |
|
|
| | +-------------+
|
|
+----------------+
|
|
|
|
|
|
|