Kata containers as VM-based containers are allowed to run in the host
netns. That is, the network is able to isolate in the L2. The network
performance will benefit from this architecture, which eliminates as many
hops as possible. We called it a Directly Attachable Network (DAN for
short).
The network devices are placed at the host netns by the CNI plugins. The
configs are saved at {dan_conf}/{sandbox_id}.json in the format of JSON,
including device name, type, and network info. At the very beginning stage,
the DAN only supports host tap devices. More devices, like the DPDK, will
be supported in later versions.
The format of file looks like as below:
```json
{
"netns": "/path/to/netns",
"devices": [{
"name": "eth0",
"guest_mac": "xx:xx:xx:xx:xx",
"device": {
"type": "vhost-user",
"path": "/tmp/test",
"queue_num": 1,
"queue_size": 1
},
"network_info": {
"interface": {
"ip_addresses": ["192.168.0.1/24"],
"mtu": 1500,
"ntype": "tuntap",
"flags": 0
},
"routes": [{
"dest": "172.18.0.0/16",
"source": "172.18.0.1",
"gateway": "172.18.31.1",
"scope": 0,
"flags": 0
}],
"neighbors": [{
"ip_address": "192.168.0.3/16",
"device": "",
"state": 0,
"flags": 0,
"hardware_addr": "xx:xx:xx:xx:xx"
}]
}
}]
}
```
Fixes: #1922
Signed-off-by: Xuewei Niu <niuxuewei.nxw@antgroup.com>
sandbox_bind_mounts supports kinds of mount patterns, for example:
(1) "/path/to", default readonly mode.
(2) "/path/to:ro", same as (1).
(3) "/path/to:rw", readwrite mode.
Both support configuration and annotation:
(1)[runtime]
sandbox_bind_mounts=["/path/to", "/path/to:rw", "/mnt/to:ro"]
(2) annotation will alse be supported, restricted as below:
io.katacontainers.config.runtime.sandbox_bind_mounts
= "/path/to /path/to:rw /mnt/to:ro"
Fixes: #6597
Signed-off-by: alex.lyn <alex.lyn@antgroup.com>
This patch adds keep_abnormal in runtime config. If keep_abnormal =
true, it means that 1) if the runtime exits abnormally, the cleanup
process will be skipped, and 2) the runtime will not exit even if the
health check fails.
This option is typically used to retain abnormal information for
debugging and should NOT be enabled by default.
Fixes: #6717
Signed-off-by: mengze <mengze@linux.alibaba.com>
Signed-off-by: quanweiZhou <quanweiZhou@linux.alibaba.com>
When testing on AKS, we've been hitting the dial_timeout every now and
then. Let's increase it to 45 seconds (instead of 30) for all the VMMs,
and to 60 seconfs in case of TEEs.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
For kata containers, rootfs is used in the read-only way.
EROFS can noticably decrease metadata overhead.
On the basis of supporting the EROFS file system, it supports using the config parameter to switch the file system used by rootfs.
Fixes: #6063
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: yaoyinnan <yaoyinnan@foxmail.com>
"inline-virtio-fs" is newly supported by kata 3.0 as a "shared_fs" type,
it should be described in configuration file.
"inline-virtio-fs" is the same as "virtio-fs", but it is running in
the same process of shim, does not need an external virtiofsd process.
Fixes: #5102
Signed-off-by: Bin Liu <bin@hyper.sh>
