host-local

command
Version: v0.10.0 Latest Latest
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Published: Oct 23, 2015 License: Apache-2.0 Imports: 8 Imported by: 0

README

host-local IP address manager

host-local IPAM allocates IPv4 and IPv6 addresses out of a specified address range.

Usage

Obtain an IP

Given the following network configuration:

{
    "name": "default",
    "ipam": {
        "type": "host-local",
        "subnet": "203.0.113.0/24"
    }
}
Using the command line interface
$ export CNI_COMMAND=ADD
$ export CNI_CONTAINERID=f81d4fae-7dec-11d0-a765-00a0c91e6bf6
$ ./host-local < $conf
{
    "ip4": {
        "ip": "203.0.113.1/24"
    }
}

Backends

By default ipmanager stores IP allocations on the local filesystem using the IP address as the file name and the ID as contents. For example:

$ ls /var/lib/cni/networks/default
203.0.113.1	203.0.113.2
$ cat /var/lib/cni/networks/default/203.0.113.1
f81d4fae-7dec-11d0-a765-00a0c91e6bf6

Configuration Files

{
	"name": "ipv6",
    "ipam": {
		"type": "host-local",
		"subnet": "3ffe:ffff:0:01ff::/64",
		"range-start": "3ffe:ffff:0:01ff::0010",
		"range-end": "3ffe:ffff:0:01ff::0020",
		"routes": [
			{ "dst": "3ffe:ffff:0:01ff::1/64" }
		]
	}
}
{
    "name": "ipv4",
	"ipam": {
		"type": "host-local",
		"subnet": "203.0.113.1/24",
		"range-start": "203.0.113.10",
		"range-end": "203.0.113.20",
		"routes": [
			{ "dst": "203.0.113.0/24" }
		]
	}
}

Documentation

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