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authorViacheslav Hletenko <v.gletenko@vyos.io>2022-02-19 18:06:27 +0000
committerViacheslav Hletenko <v.gletenko@vyos.io>2022-02-19 20:16:17 +0000
commitcf36ced75094a519682875e0e73571824f34b6ec (patch)
tree4895eb3c8b98d64f88ea3b8fd58ad73c75692137
parent29ba813fb65b8b292105cdae4f8f71fcce6350a1 (diff)
downloadvyos-1x-cf36ced75094a519682875e0e73571824f34b6ec.tar.gz
vyos-1x-cf36ced75094a519682875e0e73571824f34b6ec.zip
containers: T4249: Allow to connect host device to the container
Ability to attach host devices to the container It can be disk, USB device or any device from the directory /dev set container name alp01 device disk source '/dev/vdb1' set container name alp01 device disk destination '/dev/mydisk'
-rw-r--r--interface-definitions/containers.xml.in25
-rwxr-xr-xsrc/conf_mode/containers.py22
2 files changed, 46 insertions, 1 deletions
diff --git a/interface-definitions/containers.xml.in b/interface-definitions/containers.xml.in
index 30c7110b8..07686b16e 100644
--- a/interface-definitions/containers.xml.in
+++ b/interface-definitions/containers.xml.in
@@ -58,6 +58,31 @@
</properties>
</leafNode>
#include <include/generic-description.xml.i>
+ <tagNode name="device">
+ <properties>
+ <help>Add a host device to the container</help>
+ </properties>
+ <children>
+ <leafNode name="source">
+ <properties>
+ <help>Source device (Example: "/dev/x")</help>
+ <valueHelp>
+ <format>txt</format>
+ <description>Source device</description>
+ </valueHelp>
+ </properties>
+ </leafNode>
+ <leafNode name="destination">
+ <properties>
+ <help>Destination container device (Example: "/dev/x")</help>
+ <valueHelp>
+ <format>txt</format>
+ <description>Destination container device</description>
+ </valueHelp>
+ </properties>
+ </leafNode>
+ </children>
+ </tagNode>
#include <include/generic-disable-node.xml.i>
<tagNode name="environment">
<properties>
diff --git a/src/conf_mode/containers.py b/src/conf_mode/containers.py
index 26c50cab6..516671844 100755
--- a/src/conf_mode/containers.py
+++ b/src/conf_mode/containers.py
@@ -122,6 +122,18 @@ def verify(container):
raise ConfigError(f'IP address "{address}" can not be used for a container, '\
'reserved for the container engine!')
+ if 'device' in container_config:
+ for dev, dev_config in container_config['device'].items():
+ if 'source' not in dev_config:
+ raise ConfigError(f'Device "{dev}" has no source path configured!')
+
+ if 'destination' not in dev_config:
+ raise ConfigError(f'Device "{dev}" has no destination path configured!')
+
+ source = dev_config['source']
+ if not os.path.exists(source):
+ raise ConfigError(f'Device "{dev}" source path "{source}" does not exist!')
+
if 'environment' in container_config:
for var, cfg in container_config['environment'].items():
if 'value' not in cfg:
@@ -266,6 +278,14 @@ def apply(container):
c = c.replace('-', '_')
cap_add += f' --cap-add={c}'
+ # Add a host device to the container /dev/x:/dev/x
+ device = ''
+ if 'device' in container_config:
+ for dev, dev_config in container_config['device'].items():
+ source_dev = dev_config['source']
+ dest_dev = dev_config['destination']
+ device += f' --device={source_dev}:{dest_dev}'
+
# Check/set environment options "-e foo=bar"
env_opt = ''
if 'environment' in container_config:
@@ -296,7 +316,7 @@ def apply(container):
container_base_cmd = f'podman run --detach --interactive --tty --replace {cap_add} ' \
f'--memory {memory}m --memory-swap 0 --restart {restart} ' \
- f'--name {name} {port} {volume} {env_opt}'
+ f'--name {name} {device} {port} {volume} {env_opt}'
if 'allow_host_networks' in container_config:
run(f'{container_base_cmd} --net host {image}')
else: