* replace ephemeral deletion logic
this commit replaces the way we remove ephemeral nodes,
currently they are deleted in a loop and we look at last seen
time. This time is now only set when a node disconnects and
there was a bug (#2006) where nodes that had never disconnected
was deleted since they did not have a last seen.
The new logic will start an expiry timer when the node disconnects
and delete the node from the database when the timer is up.
If the node reconnects within the expiry, the timer is cancelled.
Fixes #2006
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* use uint64 as authekyid and ptr helper in tests
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* add test db helper
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* add list ephemeral node func
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* schedule ephemeral nodes for removal on startup
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* fix gorm query for postgres
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* add godoc
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
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Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commits removes the locks used to guard data integrity for the
database and replaces them with Transactions, turns out that SQL had
a way to deal with this all along.
This reduces the complexity we had with multiple locks that might stack
or recurse (database, nofitifer, mapper). All notifications and state
updates are now triggered _after_ a database change.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
The mapper package contains functions related to creating and marshalling
reponses to machines.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This is a massive commit that restructures the code into modules:
db/
All functions related to modifying the Database
types/
All type definitions and methods that can be exclusivly used on
these types without dependencies
policy/
All Policy related code, now without dependencies on the Database.
policy/matcher/
Dedicated code to match machines in a list of FilterRules
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
