39 lines
1.0 KiB
Markdown
39 lines
1.0 KiB
Markdown
# dhcp plugin
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## Overview
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With dhcp plugin the containers can get an IP allocated by a DHCP server already running on your network.
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This can be especially useful with plugin types such as [macvlan](../../main/macvlan/README.md).
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Because a DHCP lease must be periodically renewed for the duration of container lifetime, a separate daemon is required to be running.
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The same plugin binary can also be run in the daemon mode.
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## Operation
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To use the dhcp IPAM plugin, first launch the dhcp daemon:
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```
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# Make sure the unix socket has been removed
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$ rm -f /run/cni/dhcp.sock
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$ ./dhcp daemon
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```
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If given `-pidfile <path>` arguments after 'daemon', the dhcp plugin will write
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its PID to the given file.
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Alternatively, you can use systemd socket activation protocol.
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Be sure that the .socket file uses /run/cni/dhcp.sock as the socket path.
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With the daemon running, containers using the dhcp plugin can be launched.
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## Example configuration
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```
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{
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"ipam": {
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"type": "dhcp",
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}
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}
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## Network configuration reference
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* `type` (string, required): "dhcp"
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