When a container has errors on removal, it gets flagged as dead.
If you `docker rm -f` a dead container the container is dereffed from
the daemon and doesn't show up on `docker ps` anymore... except that the
container JSON file may still be lingering around and becomes undead
when you restart the daemon.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: c3c08f76bec023218b632e4c688ff9fcda11fcef
Component: engine
statsCollector.publishers must be protected to prevent
modifications during the iteration in run().
Being locked for a long time is bad, so pairs of containers &
publishers (pointers) are copied to release the lock fast.
Signed-off-by: Anton Tiurin <noxiouz@yandex.ru>
Upstream-commit: 11a5f1af01842acf9a25ccebb59f36472ae51170
Component: engine
This also moves `exec -i` test to _unix_test.go because it seems to need a
pty to reliably reproduce the behavior.
Signed-off-by: Daniel, Dao Quang Minh <dqminh89@gmail.com>
Upstream-commit: ade8146aa82baa88bacdcf2d9c2559e8f47d71e4
Component: engine
- Mount struct now called volumeMount
- Merged volume creation for each volume type (volumes-from, binds, normal
volumes) so this only happens in once place
- Simplified container copy of volumes (for when `docker cp` is a
volume)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: f3680e74946d3a773edb118ea3f508b8237e44a8
Component: engine
Also removed the function ExecConfigFromJob
Signed-off-by: Sun Jianbo <wonderflow@zju.edu.cn>
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: 24425021d26f29a475702064181e6c99fb6bd1c5
Component: engine
When firewalld (or iptables service) restarts/reloads,
all previously added docker firewall rules are flushed.
With firewalld we can react to its Reloaded() [1]
D-Bus signal and recreate the firewall rules.
Also when firewalld gets restarted (stopped & started)
we can catch the NameOwnerChanged signal [2].
To specify which signals we want to react to we use AddMatch [3].
Libvirt has been doing this for quite a long time now.
Docker changes firewall rules on basically 3 places.
1) daemon/networkdriver/portmapper/mapper.go - port mappings
Portmapper fortunatelly keeps list of mapped ports,
so we can easily recreate firewall rules on firewalld restart/reload
New ReMapAll() function does that
2) daemon/networkdriver/bridge/driver.go
When setting a bridge, basic firewall rules are created.
This is done at once during start, it's parametrized and nowhere
tracked so how can one know what and how to set it again when
there's been firewalld restart/reload ?
The only solution that came to my mind is using of closures [4],
i.e. I keep list of references to closures (anonymous functions
together with a referencing environment) and when there's firewalld
restart/reload I re-call them in the same order.
3) links/links.go - linking containers
Link is added in Enable() and removed in Disable().
In Enable() we add a callback function, which creates the link,
that's OK so far.
It'd be ideal if we could remove the same function from
the list in Disable(). Unfortunatelly that's not possible AFAICT,
because we don't know the reference to that function
at that moment, so we can only add a reference to function,
which removes the link. That means that after creating and
removing a link there are 2 functions in the list,
one adding and one removing the link and after
firewalld restart/reload both are called.
It works, but it's far from ideal.
[1] https://jpopelka.fedorapeople.org/firewalld/doc/firewalld.dbus.html#FirewallD1.Signals.Reloaded
[2] http://dbus.freedesktop.org/doc/dbus-specification.html#bus-messages-name-owner-changed
[3] http://dbus.freedesktop.org/doc/dbus-specification.html#message-bus-routing-match-rules
[4] https://en.wikipedia.org/wiki/Closure_%28computer_programming%29
Signed-off-by: Jiri Popelka <jpopelka@redhat.com>
Upstream-commit: b052827e025267336f0d426df44ec536745821f8
Component: engine
Phil Estes
Brian Goff
David Mackey
Antonio Murdaca
David Calavera
Tibor Vass
John Howard
Jessie Frazelle
Aidan Hobson Sayers
jmzwcn
Anton Tiurin
Michael Crosby
Daniel, Dao Quang Minh
Ma Shimiao
Alexander Morozov
Dan Walsh
jianbosun
Arnaud Porterie
Alexander Morozov
Srini Brahmaroutu
Lei Jitang
Sylvain Baubeau
Jiri Popelka