Thanks to @dmcgowan for noticing.
Added a testcase to make sure Save() can create the dir and then
read from it.
Signed-off-by: Doug Davis <dug@us.ibm.com>
Though I am not clear on the intent of the sentence if it means that existing data in the base image is copied into the new volume then the additions I propose make that more clear than the present language.
Signed-off-by: Kent Johnson <kentoj@gmail.com>
This PR does the following:
- migrated ~/.dockerfg to ~/.docker/config.json. The data is migrated
but the old file remains in case its needed
- moves the auth json in that fie into an "auth" property so we can add new
top-level properties w/o messing with the auth stuff
- adds support for an HttpHeaders property in ~/.docker/config.json
which adds these http headers to all msgs from the cli
In a follow-on PR I'll move the config file process out from under
"registry" since it not specific to that any more. I didn't do it here
because I wanted the diff to be smaller so people can make sure I didn't
break/miss any auth code during my edits.
Signed-off-by: Doug Davis <dug@us.ibm.com>
It is simplifies code and lead to next refactoring step, where daemon
will be incorporated to some structure which represents API.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
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>
Firewalld [1] is a firewall managing daemon with D-Bus interface.
What sort of problem are we trying to solve with this ?
Firewalld internally also executes iptables/ip6tables to change firewall settings.
It might happen on systems where both docker and firewalld are running
concurrently, that both of them try to call iptables at the same time.
The result is that the second one fails because the first one is holding a xtables lock.
One workaround is to use --wait/-w option in both
docker & firewalld when calling iptables.
It's already been done in both upstreams:
b315c380f4b3b451d6f8
But it'd still be better if docker used firewalld when it's running.
Other problem the firewalld support would solve is that
iptables/firewalld service's restart flushes all firewall rules
previously added by docker.
See next patch for possible solution.
This patch utilizes firewalld's D-Bus interface.
If firewalld is running, we call direct.passthrough() [2] method instead
of executing iptables directly.
direct.passthrough() takes the same arguments as iptables tool itself
and passes them through to iptables tool.
It might be better to use other methods, like direct.addChain and
direct.addRule [3] so it'd be more intergrated with firewalld, but
that'd make the patch much bigger.
If firewalld is not running, everything works as before.
[1] http://www.firewalld.org/
[2] https://jpopelka.fedorapeople.org/firewalld/doc/firewalld.dbus.html#FirewallD1.direct.Methods.passthrough
[3] https://jpopelka.fedorapeople.org/firewalld/doc/firewalld.dbus.html#FirewallD1.direct.Methods.addChainhttps://jpopelka.fedorapeople.org/firewalld/doc/firewalld.dbus.html#FirewallD1.direct.Methods.addRule
Signed-off-by: Jiri Popelka <jpopelka@redhat.com>
Two main things
- Create a real struct Info for all of the data with the proper types
- Add test for REST API get info
Signed-off-by: Hu Keping <hukeping@huawei.com>
Jessie Frazelle
Jessica Frazelle
Arnaud Porterie
Phil Estes
David Calavera
moxiegirl
Doug Davis
Lorenzo Fontana
Srini Brahmaroutu
Vincent Demeester
Kent Johnson
Alexander Morozov
Alexander Morozov
Sergey Evstifeev
buddhamagnet
Raghuram Devarakonda
Zhang Wei
Lei Jitang
Sylvain Baubeau
Brian Goff
Jiri Popelka
Hu Keping
Shijiang Wei
Ma Shimiao