This change adds a new message handler that users of the reader can use
to handle websocket messages. Packages should never print to console by
themselves.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
Improper use of time.After can lead to memory leaks if the timer never
gets a chance to fire.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
This change adds a new websocket endpoint for database events. The events
endpoint allows clients to stream events as they happen in GARM. Events
are defined as a structure containning the event type (create, update, delete),
the database entity involved (instances, pools, repos, etc) and the payload
consisting of the object involved in the event. The payload translates
to the types normally returned by the API and can be deserialized as one
of the types present in the params package.
The events endpoint is a websocket endpoint and it accepts filters as
a simple json send over the websocket connection. The filters allows the
user to specify which entities are of interest, and which operations should
be returned. For example, you may be interested in changes made to pools
or runners, in which case you could create a filter that only returns
update operations for pools. Or update and delete operations.
The filters can be defined as:
{
"filters": [
{
"entity_type": "instance",
"operations": ["update", "delete"]
},
{
"entity_type": "pool"
},
],
"send_everything": false
}
This would return only update and delete events for instances and all events
for pools. Alternatively you can ask GARM to send you everything:
{
"send_everything": true
}
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
The websocket client and hub interaction has been simplified a bit.
The hub now acts only as a tee writer to the various clients that
register. Clients must register and unregister explicitly. The hub
is no longer passed in to the client.
Websocket clients now watch for password changes or jwt token expiration
times. Clients are disconnected if auth token expires or if the password
is changed.
Various aditional safety checks have been added.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
This change increases the tools refresh interval to 5 minutes, cleans
up the websocket code a bit, augments the error message that may be returned
when trying to delete a runner in an invalid state and removes a log message
that does not add much value.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
I accidentally disabled the log streamer when I moved the config options
to their own section. This change fixes that.
This change also adds some safety checks and locking when cleaning up stale
clients. The websocket hub Write() function now copies the message before
sending it on the channel to the clients.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
This change switches GARM to the new structured logging standard
library. This will allow us to set log levels and reduce some of
the log spam.
Given that we introduced new knobs to tweak logging, the number of
config options for logging now warrants it's own section.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
