Commit graph

15 commits

Author SHA1 Message Date
Kenfe-Mickael Laventure
c5843b7615 Initial windows runtime work
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
2017-04-07 09:20:44 -07:00
Michael Crosby
47225c130c Add ctr exec
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-04-06 10:36:47 -07:00
Stephen J Day
8c74da3983
cmd/dist, cmd/ctr: move image store access to GRPC
With this changeset, image store access is now moved to completely
accessible over GRPC. No clients manipulate the image store database
directly and the GRPC client is fully featured. The metadata database is
now managed by the daemon and access coordinated via services.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-04-04 10:35:55 -07:00
Michael Crosby
4f2b443a27 Rewrite imports for new github org
This rewrites the Go imports after switching to the new github org.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-04-03 14:05:44 -07:00
Stephen J Day
39da6ff879
images: move image package to images
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-03-21 17:36:37 -07:00
Stephen J Day
e53539c58f
cmd/dist, cmd/ctr: end to end image pull
With this changeset, we now have a proof of concept of end to end pull.
Up to this point, the relationship between subsystems has been somewhat
theoretical. We now leverage fetching, the snapshot drivers, the rootfs
service, image metadata and the execution service, validating the proposed
model for containerd. There are a few caveats, including the need to move some
of the access into GRPC services, but the basic components are there.

The first command we will cover here is `dist pull`. This is the analog
of `docker pull` and `git pull`. It performs a full resource fetch for
an image and unpacks the root filesystem into the snapshot drivers. An
example follows:

``` console
$ sudo ./bin/dist pull docker.io/library/redis:latest
docker.io/library/redis:latest:                                                   resolved       |++++++++++++++++++++++++++++++++++++++|
manifest-sha256:4c8fb09e8d634ab823b1c125e64f0e1ceaf216025aa38283ea1b42997f1e8059: done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:3b281f2bcae3b25c701d53a219924fffe79bdb74385340b73a539ed4020999c4:    done           |++++++++++++++++++++++++++++++++++++++|
config-sha256:e4a35914679d05d25e2fccfd310fde1aa59ffbbf1b0b9d36f7b03db5ca0311b0:   done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:4b7726832aec75f0a742266c7190c4d2217492722dfd603406208eaa902648d8:    done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:338a7133395941c85087522582af182d2f6477dbf54ba769cb24ec4fd91d728f:    done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:83f12ff60ff1132d1e59845e26c41968406b4176c1a85a50506c954696b21570:    done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:693502eb7dfbc6b94964ae66ebc72d3e32facd981c72995b09794f1e87bac184:    done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:622732cddc347afc9360b4b04b46c6f758191a1dc73d007f95548658847ee67e:    done           |++++++++++++++++++++++++++++++++++++++|
layer-sha256:19a7e34366a6f558336c364693df538c38307484b729a36fede76432789f084f:    done           |++++++++++++++++++++++++++++++++++++++|
elapsed: 1.6 s                                                                    total:   0.0 B (0.0 B/s)
INFO[0001] unpacking rootfs
```

Note that we haven't integrated rootfs unpacking into the status output, but we
pretty much have what is in docker today (:P). We can see the result of our pull
with the following:

```console
$ sudo ./bin/dist images
REF                            TYPE                                                 DIGEST                                                                  SIZE
docker.io/library/redis:latest application/vnd.docker.distribution.manifest.v2+json sha256:4c8fb09e8d634ab823b1c125e64f0e1ceaf216025aa38283ea1b42997f1e8059 1.8 kB
```

The above shows that we have an image called "docker.io/library/redis:latest"
mapped to the given digest marked with a specific format. We get the size of
the manifest right now, not the full image, but we can add more as we need it.
For the most part, this is all that is needed, but a few tweaks to the model
for naming may need to be added. Specifically, we may want to index under a few
different names, including those qualified by hash or matched by tag versions.
We can do more work in this area as we develop the metadata store.

The name shown above can then be used to run the actual container image. We can
do this with the following command:

```console
$ sudo ./bin/ctr run --id foo docker.io/library/redis:latest /usr/local/bin/redis-server
1:C 17 Mar 17:20:25.316 # Warning: no config file specified, using the default config. In order to specify a config file use /usr/local/bin/redis-server /path/to/redis.conf
1:M 17 Mar 17:20:25.317 * Increased maximum number of open files to 10032 (it was originally set to 1024).
                _._
           _.-``__ ''-._
      _.-``    `.  `_.  ''-._           Redis 3.2.8 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 1
  `-._    `-._  `-./  _.-'    _.-'
 |`-._`-._    `-.__.-'    _.-'_.-'|
 |    `-._`-._        _.-'_.-'    |           http://redis.io
  `-._    `-._`-.__.-'_.-'    _.-'
 |`-._`-._    `-.__.-'    _.-'_.-'|
 |    `-._`-._        _.-'_.-'    |
  `-._    `-._`-.__.-'_.-'    _.-'
      `-._    `-.__.-'    _.-'
          `-._        _.-'
              `-.__.-'

1:M 17 Mar 17:20:25.326 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 17 Mar 17:20:25.326 # Server started, Redis version 3.2.8
1:M 17 Mar 17:20:25.326 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
1:M 17 Mar 17:20:25.326 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
1:M 17 Mar 17:20:25.326 * The server is now ready to accept connections on port 6379
```

Wow! So, now we are running `redis`!

There are still a few things to work out. Notice that we have to specify the
command as part of the arguments to `ctr run`. This is because are not yet
reading the image config and converting it to an OCI runtime config. With the
base laid in this PR, adding such functionality should be straightforward.

While this is a _little_ messy, this is great progress. It should be easy
sailing from here.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-03-21 13:08:23 -07:00
Michael Crosby
47ececd6b8 Change Container interface to include Info
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-02-16 09:59:40 -08:00
Michael Crosby
ab8586b7c5 Remove bundles from API
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-02-15 13:56:41 -08:00
Akihiro Suda
bf8abef70f api: introduce api/{types,services} for deduplication of API definition
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
2017-02-14 02:42:13 +00:00
Kenfe-Mickael Laventure
78d7e8b256 supervisor: implement monitoring
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
2017-02-06 15:16:55 -08:00
Michael Crosby
f431bf4ad4 Add state rpc to shim
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-01-26 15:09:59 -08:00
Michael Crosby
07c81ccac4 Add events api to shim
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-01-26 11:31:17 -08:00
Qiang Huang
9a5b17009c Fix io closer
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
2017-01-17 19:04:20 +08:00
Kenfe-Mickael Laventure
3234546ee6 ctr: take console flag in account when readying IOs
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
2017-01-12 10:24:22 -08:00
Kenfe-Mickael Laventure
0aad42f5cf Add exec and terminal support
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
2016-12-09 10:00:34 -08:00