For the moment in 1.7.1 since we provide a resolv.conf set api
to the driver honor that so that for host driver we can use the
the host's /etc/resolv.conf file as is rather than putting the
contents through a filtering logic.
It should be noted that the driver side capability to set the
resolv.conf file is most likely going to go away in the future
but this should be fine for 1.7.1
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
In preparation for the new update of vishvananda/netlink package
we need to bringup the host veth interface manually.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Some parts of the bridge driver code needs to use a different kernel
api or use the already existing apis in slightly different ways to
make the bridge driver work in RHEL/Centos 6.6. This PR provides
those fixes.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
The netlink way of creating bridge has problems in older
kernels like the one used on RHEL 6 (which is a supported
one). So trying to use ioctl method to create bridge
so that it works on any version.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
The `iptables.Exists` function is wrong in two ways:
1. The iptables -C call doesn't add `-j DOCKER` and fails to match
2. The long path takes ordering into account in comparison and fails to match
This patch fixes issue 1 by including `-j DOCKER` in the check.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
* When userland-proxy is disabled, enable hairpin mode on the host-side of the veth
* When userland-proxy is enabled, fix the iptable rules appropriately
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Calling GC() without ever creating a network namespace (sandbox on
Linux) will hang as the GC loop is not running (and therefore the
channel is not being listened to).
Tested via Docker that this corrects a daemon shutdown error if the
daemon is started and stopped without any containers or networks being
created while the daemon is up.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
Currently we craete container mac address completely
randomly. But we probably need to generate based on
IP so that the mac address stays the same for a given
IP.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Right now the namespace paths are cleaned up every
garbage collection period. But if the daemon is restarted
before all the namespace paths of removed containers are
garbage collected they will remain there forever. The fix
is to provide a GC() api so that garbage collection can be
triggered immediately.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Current version of netns used in libnetwork do not have requisite syscall
entry for PowerPC (ppc64le) arch. Consequently docker which uses libnetwork fails
to create any network enabled containers on Power systems.
This patch updates netns to latest commit 5478c060110032f972e86a1f844fdb9a2f008f2c
to add ppc64le syscall entry.
Signed-off-by: Pradipta Kr. Banerjee <bpradip@in.ibm.com>
Do not have log output in packages that applications consume because the
output can mess with logs, stdout/stderr of applications and such and
there is nothing that the consumer can do about it other than change the
package that they are using.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Instead of sleeping reworked the code to use recurring ticks.
Also cleaned up unnecessary defers.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Loopback interface was s not brought up when wemoved
to clone method of creating namespace. e. Adding it.
Also taking care of PR R comments.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
This PR attempts to work around bugs present in kernel
version 3.18-4.0.1 relating to namespace creation
and destruction. This fix attempts to avoid certain
systemmcalls to not get in the kkernel bug path as well
as lazily garbage collecting the name paths when they are removed.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
In order to support the docker experimental feature build, moving the
service commands under experimental tag. Please refer to :
https://github.com/docker/docker/pull/13338/ for more information
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Madhu Venugopal