Add Akvorado module

[furest]

No description provided.

[furest]

Deprecating #394 because it includes changes that were not related to akvorado

[AlexanderMalmstrom]

Maybe we should change all values here to 8760h (1 year)? Since currently we only save 15 days of raw flows. 15 days is still longer then the events so we should not end up with a bunch of more data, in theory we will only keep it for longer.

puppet-modules/modules/akvorado/templates/akvorado.yaml.erb

Lines 44 to 52 in f67aba8

	resolutions:
	- interval: 0s
	ttl: 360h0m0s
	- interval: 1m0s
	ttl: 168h0m0s
	- interval: 5m0s
	ttl: 2160h0m0s
	- interval: 1h0m0s
	ttl: 8640h0m0s

[SoundGoof]

The Kafka storage formatting looks broken: format-kafka-storage uses refreshonly => true, but nothing notifies or subscribes to it, so it will never run on a fresh install. This should use an idempotent guard such as creates => '/var/log/kafka/meta.properties' and run before the Kafka service starts.

There are also undefined Python exceptions (NetworkTypeNotFoundError and NetworkNotFoundError), and the SNMP loops should probably use continue instead of return when a secret is missing.

The systemd unit should also avoid wrapping ExecStart in /bin/sh -c just to redirect output. That adds an unnecessary shell layer and can interfere with signal handling. For example:

ExecStart=/var/lib/kafka/bin/kafka-server-start.sh /var/lib/kafka/config/server.properties
StandardOutput=append:/var/log/kafka/kafka.log
StandardError=inherit

Alternatively, omit the output directives and let Kafka log directly to journald.