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50 Commits

Author SHA1 Message Date
Victor Marmol
91c974e913 Generate CgroupPaths when not available. 
This happens always for non-Docker containers and sometimes with older Docker
containers.
 2014-12-15 16:57:30 -08:00
Rohit Jnagal
1953bd0e94 Bump minimum docker supported version to 1.0. 2014-12-15 16:57:22 +00:00
Victor Marmol
cb0387b41e Try to detect systemd by checking for its named cgroup hierarchy. 
Fixes #342
 2014-12-11 17:30:33 -08:00
Victor Marmol
e3ab15417c Ignore update errors for dead containers. 
This adds an Exists() interface to detect when the container is dead.
Before reporting an update error we check is Exists() is true.

Some documentation was added as well.
 2014-11-22 05:31:11 +08:00
Victor Marmol
0e603d2709 Let the raw driver handle the /docker container. 
This will give us stats on this container and since the /docker UI
endpoint, it no longer serves the purpose it once did.
 2014-11-20 06:44:35 +08:00
Victor Marmol
f97e57df88 Simplify how the Docker containers are handled. 
This is done by introducting the concept of "namespaces" of container
names. The aliases of a container are under this namespace. Namespace
names are of the form:

//<namespace>/<alias>

This allows us to (within cAdvisor) query all docker containers as
//docker regardless of whether this is a systemd or a non-systemd system.

This does break our ability to handle Docker aliases with the /container
endpoint. I think this is acceptable as our support there was not
consistent between system types.
 2014-11-12 18:01:47 -08:00
Victor Marmol
6e89bdef9f Add /docker/ UI endpoint. 
Fixes #294
 2014-11-07 08:53:52 -08:00
Victor Marmol
e695c3820e Only overwrite the Name and Parent in the libcontainer Cgroup. 
Fixes #287
 2014-10-29 11:41:23 -07:00
Victor Marmol
8aa05b0c39 Add API version v1.2 with /docker endpoint. 
The /docker endpoint lists all Docker containers under one unified
namespace.
 2014-10-20 22:24:01 -07:00
Vishnu Kannan
0699e7029d Avoid storage usagge calculations when aufs driver is not being used. 2014-10-07 11:48:10 +00:00
Vishnu Kannan
5e8fecea6a Adding filesystem usage calculation for docker containers. This patch also includes some internal refactoring. 
'machine' api now exports a list of all existing 'ext*' filesystems along with the capacity.
 2014-10-06 09:51:32 +00:00
Vish Kannan
1ed9d122c1 Merge pull request #220 from vmarmol/coreos 
Fix name resolution in Systemd systems
 2014-09-29 11:28:23 -07:00
Satnam Singh
7ddc75c41b Squashed commit of the following: 
commit 6bf9fe89f6
Author: Satnam Singh <satnam@google.com>
Date:   Fri Sep 26 10:23:16 2014 -0700

    Change error to warning during handling check.

commit c580907183
Author: Satnam Singh <satnam@google.com>
Date:   Fri Sep 26 10:21:41 2014 -0700

    Decapatalise fmt.Errorf error messages.

commit 3ecc5745d6
Author: Satnam Singh <satnam@google.com>
Date:   Fri Sep 26 10:19:15 2014 -0700

    Fix misunderstanding about when CanHandle fails.

commit adce0c5433
Author: Satnam Singh <satnam@google.com>
Date:   Fri Sep 26 10:13:32 2014 -0700

    Change the interface of CanHandle to return error information.
 2014-09-26 18:06:58 -07:00
Victor Marmol
ebf231e4df Fix name resolution in Systemd systems 2014-09-23 20:01:35 -07:00
Victor Marmol
6f35cf8e6c Supporting graceful signal shutdown. 
Adding a signal handler and gracefully shutting down all threads.
 2014-09-23 14:13:58 -07:00
Victor Marmol
e22831f1bd Flatten ContainerSpec. 2014-09-19 10:14:22 -07:00
Victor Marmol
b63d61ca97 Use inotify to watch for new containers. 
This reduces cAdvisor CPU usage below 1% in my CoreOS system.

We also reduce global housekeeping to every 60s as a fallback in case we
miss an event.
 2014-09-18 12:52:09 -07:00
Victor Marmol
f9c45094ab Only register the Docker driver in systems using libcontainer. 2014-09-05 13:37:18 -07:00
Victor Marmol
b75dea4021 Adding --docekr_root to customize where Docker stores state. 
Fixes #199
 2014-08-29 14:54:40 -07:00
Vishnu Kannan
3e390e0f33 Use glog instead of 'log' library. 
Docker-DCO-1.1-Signed-off-by: Vishnu Kannan <vishnuk@google.com> (github: vishh)
 2014-08-07 18:38:58 +00:00
Victor Marmol
00f4f840ea Move from filepath -> path for Join. 2014-08-03 10:06:39 -07:00
Victor Marmol
56054e3e31 Remove SplitName(). 
This is possible thanks to the new libcontainer interface that allows
the use of absolute paths.
 2014-08-02 11:36:10 -07:00
Nan Monnand Deng
d6551d888b list processes 2014-07-29 01:20:19 -04:00
Victor Marmol
7a3f7b9a29 Return an empty state for old versions of Docker. 
Fixes #127.
 2014-07-25 08:20:55 -07:00
Rohit Jnagal
1fa48e8c39 Fix handling of cpumask for docker driver. Raw driver still reports all 
cpus. Will fix it to read cpumask for cgroup seperately.

Docker-DCO-1.1-Signed-off-by: Rohit Jnagal <jnagal@google.com> (github: rjnagal)
 2014-07-24 01:50:32 +00:00
Victor Marmol
239f4bad11 Added parent prefix to all Docker containers. 2014-07-23 13:23:27 -07:00
Victor Marmol
2e9176ae64 Fix Docker container slice in systemd systems. 
It should be in /system.slice/docker-*.
 2014-07-23 07:46:46 -07:00
Victor Marmol
eef8c01e4e Better handle nested containers and libcontainer. 2014-07-22 18:04:08 -07:00
Vishnu Kannan
a748b53743 Docker ListContainers will work only for the '/docker' container. 2014-07-22 19:55:14 +00:00
Vishnu Kannan
f147996e9d Ignore non '/docker' containers in the docker driver. 2014-07-22 19:55:14 +00:00
Vishnu Kannan
5dfa7b64ba Removed NotActive error message from container package. 
Imporved error messages.
 2014-07-22 19:55:14 +00:00
Vishnu Kannan
ef13440034 Addressed comments. Another series of bug fixes. 
Modified the docker driver and lmctfy driver to skip containers they cannot handle.
 2014-07-22 19:55:14 +00:00
Vishnu Kannan
1edb798de5 Features: 
Added Network Stats to Container Info. It still not exposed via the HTTP UI.
Bug fixes:
1. Modified docker handler to use libcontainer.GetStats instead of quering the fs package.
2. cAdvisor will not stall if any of its core operations fail.
3. cAdvisor will safely ignore any inactive or leaked docker containers. When containers are leaked cgroup state exists but docker is not aware of them.
 2014-07-22 18:58:16 +00:00
Victor Marmol
a187d74e5b Enable the simple raw driver. 
It doesn't yet get the spec, but it is functional enough to use.
This removed the registration of lmctfy, the code will be removed in a
future PR once raw GetSpec() is complete.
 2014-07-21 19:02:07 -07:00
Victor Marmol
a8863e6367 Initial version of the raw container driver. 2014-07-17 10:45:59 -07:00
Victor Marmol
1636c3e759 Change ContainerHandlerFactories to decide what containers they support. 
This allows a ContainerHandlerFactory to register a CanHandle() function
which is called to determine whether the factory can handle a particular
container.

This commit disables being able to run cAdvisor without lmctfy. This
should be enabled again with a "no-op" global factory which I would like
to do in a separate PR.
 2014-07-16 16:48:45 -07:00
Victor Marmol
c4c604c278 Handle systemd when it is present. 2014-07-14 10:00:21 -07:00
Nan Monnand Deng
304a166d7a working set = usage - inactive 2014-06-27 14:47:02 -04:00
Nan Monnand Deng
875146e396 calculate working set based on #. pages in active LRU. 2014-06-27 13:03:05 -04:00
Victor Marmol
dcedfe3c9d Rename libcontainer.Container -> libcontainer.Config 2014-06-24 14:54:30 -07:00
Nan Deng
3718b139b3 remove StatsPercentiles in container handler 2014-06-17 12:55:51 -07:00
Rohit Jnagal
54fbc922a5 Merge remote-tracking branch 'upstream/master' 
Docker-DCO-1.1-Signed-off-by: Rohit Jnagal <jnagal@google.com> (github: rjnagal)
 2014-06-16 17:22:48 +00:00
Rohit Jnagal
26a5cdabca Add version information for components we depend on. 
Docker-DCO-1.1-Signed-off-by: Rohit Jnagal <jnagal@google.com> (github: rjnagal)
 2014-06-16 17:20:09 +00:00
Victor Marmol
410c27a84f Track a container by all of its aliases 2014-06-13 18:24:59 -07:00
Nan Monnand Deng
6250bf3d0f Add ContainerReference() to ContainerHandler(). 2014-06-13 18:18:26 -04:00
Victor Marmol
b9738e6ee6 Switching from using Docker config to libcontainer config for ContainerSpec 2014-06-13 12:06:26 -07:00
Nan Deng
312bcae2db gofmt -r "ContainerRef->ContainerReference" -w -l . 2014-06-12 17:32:46 -07:00
Nan Deng
89b5484734 changed actual handlers 2014-06-12 17:31:26 -07:00
Victor Marmol
e9ed0bfea5 Move to using the libcontainer repo directly. 
Return empty stats for / and /docker in the docker driver
 2014-06-12 17:11:01 -07:00
Victor Marmol
712f9fb32f Migrating cAdvisor code from lmctfy 2014-06-09 12:12:07 -07:00