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393a8f0261
when doing a network creation, the dnsname plugin should be disabled when the --internal bool is set. a warning is displayed if this happens and docs are updated. Signed-off-by: baude <bbaude@redhat.com>
113 lines
3.4 KiB
Markdown
113 lines
3.4 KiB
Markdown
% podman-network-create(1)
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## NAME
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podman\-network-create - Create a Podman CNI network
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## SYNOPSIS
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**podman network create** [*options*] name
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## DESCRIPTION
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Create a CNI-network configuration for use with Podman. By default, Podman creates a bridge connection. A
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*Macvlan* connection can be created with the *macvlan* option. In the case of *Macvlan* connections, the
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CNI *dhcp* plugin needs to be activated or the container image must have a DHCP client to interact
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with the host network's DHCP server.
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If no options are provided, Podman will assign a free subnet and name for your network.
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Upon completion of creating the network, Podman will display the path to the newly added network file.
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## OPTIONS
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#### **--disable-dns**
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Disables the DNS plugin for this network which if enabled, can perform container to container name
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resolution.
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#### **--driver**, **-d**
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Driver to manage the network (default "bridge"). Currently only `bridge` is supported.
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#### **--opt**=*option*, **-o**
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Set driver specific options.
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For the `bridge` driver the following options are supported: `mtu` and `vlan`.
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The `mtu` option sets the Maximum Transmission Unit (MTU) and takes an integer value.
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The `vlan` option assign VLAN tag and enables vlan\_filtering. Defaults to none.
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#### **--gateway**
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Define a gateway for the subnet. If you want to provide a gateway address, you must also provide a
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*subnet* option.
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#### **--internal**
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Restrict external access of this network. Note when using this option, the dnsname plugin will be
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automatically disabled.
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#### **--ip-range**
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Allocate container IP from a range. The range must be a complete subnet and in CIDR notation. The *ip-range* option
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must be used with a *subnet* option.
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#### **--label**
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Set metadata for a network (e.g., --label mykey=value).
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#### **--macvlan**
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Create a *Macvlan* based connection rather than a classic bridge. You must pass an interface name from the host for the
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Macvlan connection.
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#### **--subnet**
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The subnet in CIDR notation.
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#### **--ipv6**
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Enable IPv6 (Dual Stack) networking. You must pass a IPv6 subnet. The *subnet* option must be used with the *ipv6* option.
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## EXAMPLE
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Create a network with no options
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```
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# podman network create
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/etc/cni/net.d/cni-podman-4.conflist
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```
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Create a network named *newnet* that uses *192.5.0.0/16* for its subnet.
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```
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# podman network create --subnet 192.5.0.0/16 newnet
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/etc/cni/net.d/newnet.conflist
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```
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Create an IPv6 network named *newnetv6*, you must specify the subnet for this network, otherwise the command will fail.
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For this example, we use *2001:db8::/64* for its subnet.
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```
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# podman network create --subnet 2001:db8::/64 --ipv6 newnetv6
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/etc/cni/net.d/newnetv6.conflist
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```
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Create a network named *newnet* that uses *192.168.33.0/24* and defines a gateway as *192.168.133.3*
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```
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# podman network create --subnet 192.168.33.0/24 --gateway 192.168.33.3 newnet
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/etc/cni/net.d/newnet.conflist
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```
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Create a network that uses a *192.168.55.0/24** subnet and has an IP address range of *192.168.55.129 - 192.168.55.254*.
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```
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# podman network create --subnet 192.168.55.0/24 --ip-range 192.168.55.128/25
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/etc/cni/net.d/cni-podman-5.conflist
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```
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Create a Macvlan based network using the host interface eth0
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```
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# podman network create --macvlan eth0 newnet
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/etc/cni/net.d/newnet.conflist
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```
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## SEE ALSO
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podman(1), podman-network(1), podman-network-inspect(1)
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## HISTORY
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August 2019, Originally compiled by Brent Baude <bbaude@redhat.com>
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