Wire network interface into libpod

Make use of the new network interface in libpod.

This commit contains several breaking changes:
- podman network create only outputs the new network name and not file
  path.
- podman network ls shows the network driver instead of the cni version
  and plugins.
- podman network inspect outputs the new network struct and not the cni
  conflist.
- The bindings and libpod api endpoints have been changed to use the new
  network structure.

The container network status is stored in a new field in the state. The
status should be received with the new `c.getNetworkStatus`. This will
migrate the old status to the new format. Therefore old containers should
contine to work correctly in all cases even when network connect/
disconnect is used.

New features:
- podman network reload keeps the ip and mac for more than one network.
- podman container restore keeps the ip and mac for more than one
  network.
- The network create compat endpoint can now use more than one ipam
  config.

The man pages and the swagger doc are updated to reflect the latest
changes.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

3 files changed, 106 insertions, 76 deletions

diff --git a/docs/source/markdown/podman-network-create.1.md b/docs/source/markdown/podman-network-create.1.md
index 04290c188..816dd53ea 100644
--- a/docs/source/markdown/podman-network-create.1.md
+++ b/docs/source/markdown/podman-network-create.1.md
@@ -15,7 +15,7 @@ with the host network's DHCP server.
 
 If no options are provided, Podman will assign a free subnet and name for your network.
 
-Upon completion of creating the network, Podman will display the path to the newly added network file.
+Upon completion of creating the network, Podman will display the name of the newly added network.
 
 ## OPTIONS
 #### **--disable-dns**
@@ -61,49 +61,50 @@ The subnet in CIDR notation.
 
 #### **--ipv6**
 
-Enable IPv6 (Dual Stack) networking. You must pass a IPv6 subnet. The *subnet* option must be used with the *ipv6* option.
+Enable IPv6 (Dual Stack) networking.
 
 ## EXAMPLE
 
-Create a network with no options
+Create a network with no options.
 ```
-# podman network create
-/etc/cni/net.d/cni-podman-4.conflist
+$ podman network create
+cni-podman2
 ```
 
 Create a network named *newnet* that uses *192.5.0.0/16* for its subnet.
 ```
-# podman network create --subnet 192.5.0.0/16 newnet
-/etc/cni/net.d/newnet.conflist
+$ podman network create --subnet 192.5.0.0/16 newnet
+newnet
 ```
 
-Create an IPv6 network named *newnetv6*, you must specify the subnet for this network, otherwise the command will fail.
-For this example, we use *2001:db8::/64* for its subnet.
+Create an IPv6 network named *newnetv6* with a subnet of *2001:db8::/64*.
 ```
-# podman network create --subnet 2001:db8::/64 --ipv6 newnetv6
-/etc/cni/net.d/newnetv6.conflist
+$ podman network create --subnet 2001:db8::/64 --ipv6 newnetv6
+newnetv6
 ```
 
-Create a network named *newnet* that uses *192.168.33.0/24* and defines a gateway as *192.168.133.3*
+Create a network named *newnet* that uses *192.168.33.0/24* and defines a gateway as *192.168.133.3*.
 ```
-# podman network create --subnet 192.168.33.0/24 --gateway 192.168.33.3 newnet
-/etc/cni/net.d/newnet.conflist
+$ podman network create --subnet 192.168.33.0/24 --gateway 192.168.33.3 newnet
+newnet
 ```
 
 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*.
 ```
-# podman network create --subnet 192.168.55.0/24 --ip-range 192.168.55.128/25
-/etc/cni/net.d/cni-podman-5.conflist
+$ podman network create --subnet 192.168.55.0/24 --ip-range 192.168.55.128/25
+cni-podman5
 ```
 
-Create a Macvlan based network using the host interface eth0
+Create a Macvlan based network using the host interface eth0. Macvlan networks can only be used as root.
 ```
 # podman network create -d macvlan -o parent=eth0 newnet
-/etc/cni/net.d/newnet.conflist
+newnet
 ```
 
 ## SEE ALSO
-podman(1), podman-network(1), podman-network-inspect(1)
+**[podman(1)](podman.1.md)**, **[podman-network(1)](podman-network.1.md)**, **[podman-network-inspect(1)](podman-network-inspect.1.md)**, **[podman-network-ls(1)](podman-network-ls.1.md)**
 
 ## HISTORY
+August 2021, Updated with the new network format by Paul Holzinger <pholzing@redhat.com>
+
 August 2019, Originally compiled by Brent Baude <bbaude@redhat.com>
diff --git a/docs/source/markdown/podman-network-inspect.1.md b/docs/source/markdown/podman-network-inspect.1.md
index 56515d0c1..726f167e5 100644
--- a/docs/source/markdown/podman-network-inspect.1.md
+++ b/docs/source/markdown/podman-network-inspect.1.md
@@ -4,57 +4,71 @@
 podman\-network\-inspect - Displays the raw CNI network configuration for one or more networks
 
 ## SYNOPSIS
-**podman network inspect** [*options*] [*network* ...]
+**podman network inspect** [*options*] *network* [*network* ...]
 
 ## DESCRIPTION
 Display the raw (JSON format) network configuration.
 
 ## OPTIONS
-#### **--format**, **-f**
+#### **--format**, **-f**=*format*
 
 Pretty-print networks to JSON or using a Go template.
 
+| **Placeholder**   | **Description**                           |
+| ----------------- | ----------------------------------------- |
+| .ID               | Network ID                                |
+| .Name             | Network name                              |
+| .Driver           | Network driver                            |
+| .Labels           | Network labels                            |
+| .Options          | Network options                           |
+| .IPAMOptions      | Network ipam options                      |
+| .Created          | Timestamp when the network was created    |
+| .Internal         | Network is internal (boolean)             |
+| .IPv6Enabled      | Network has ipv6 subnet (boolean)         |
+| .DNSEnabled       | Network has dns enabled (boolean)         |
+| .NetworkInterface | Name of the network interface on the host |
+| .Subnets          | List of subnets on this network           |
+
 ## EXAMPLE
 
-Inspect the default podman network
+Inspect the default podman network.
 
 ```
-# podman network inspect podman
-[{
-    "cniVersion": "0.3.0",
-    "name": "podman",
-    "plugins": [
-      {
-        "type": "bridge",
-        "bridge": "cni0",
-        "isGateway": true,
-        "ipMasq": true,
-        "ipam": {
-            "type": "host-local",
-            "subnet": "10.88.1.0/24",
-            "routes": [
-                { "dst": "0.0.0.0/0" }
-            ]
-        }
-      },
-      {
-        "type": "portmap",
-        "capabilities": {
-          "portMappings": true
+$ podman network inspect podman
+[
+    {
+        "name": "podman",
+        "id": "2f259bab93aaaaa2542ba43ef33eb990d0999ee1b9924b557b7be53c0b7a1bb9",
+        "driver": "bridge",
+        "network_interface": "cni-podman0",
+        "created": "2021-06-03T12:04:33.088567413+02:00",
+        "subnets": [
+            {
+                "subnet": "10.88.0.0/16",
+                "gateway": "10.88.0.1"
+            }
+        ],
+        "ipv6_enabled": false,
+        "internal": false,
+        "dns_enabled": false,
+        "ipam_options": {
+            "driver": "host-local"
         }
-      }
-    ]
-}
+    }
 ]
 ```
 
+Show the subnet and gateway for a network.
+
 ```
-# podman network inspect podman --format '{{(index  .plugins  0).ipam.ranges}}'
-[[map[gateway:10.88.0.1 subnet:10.88.0.0/16]]]
+$ podman network inspect podman --format "{{range .Subnets}}Subnet: {{.Subnet}} Gateway: {{.Gateway}}{{end}}"
+Subnet: 10.88.0.0/16 Gateway: 10.88.0.1
 ```
 
 ## SEE ALSO
-podman(1), podman-network(1), podman-network-ls(1)
+**[podman(1)](podman.1.md)**, **[podman-network(1)](podman-network.1.md)**, **[podman-network-ls(1)](podman-network-ls.1.md)**, **[podman-network-create(1)](podman-network-create.1.md)**
 
 ## HISTORY
+August 2021, Updated with the new network format by Paul Holzinger <pholzing@redhat.com>
+
 August 2019, Originally compiled by Brent Baude <bbaude@redhat.com>
diff --git a/docs/source/markdown/podman-network-ls.1.md b/docs/source/markdown/podman-network-ls.1.md
index b7fd13ec6..99b734157 100644
--- a/docs/source/markdown/podman-network-ls.1.md
+++ b/docs/source/markdown/podman-network-ls.1.md
@@ -10,7 +10,7 @@ podman\-network\-ls - Display a summary of CNI networks
 Displays a list of existing podman networks.
 
 ## OPTIONS
-#### **--filter**, **-f**
+#### **--filter**, **-f**=*filter=value*
 
 Filter output based on conditions given.
 Multiple filters can be given with multiple uses of the --filter option.
@@ -19,27 +19,34 @@ Filters with the same key work inclusive with the only exception being
 
 Valid filters are listed below:
 
-| **Filter** | **Description**                                                                       |
-| ---------- | ------------------------------------------------------------------------------------- |
-| name       | [Name] Network name (accepts regex)                                                   |
-| id         | [ID] Full or partial network ID                                                       |
-| label      | [Key] or [Key=Value] Label assigned to a network                                      |
-| plugin     | [Plugin] CNI plugins included in a network (e.g `bridge`,`portmap`,`firewall`,`tuning`,`dnsname`,`macvlan`) |
-| driver     | [Driver] Only `bridge` is supported                                                   |
+| **Filter** | **Description**                                                   |
+| ---------- | ----------------------------------------------------------------- |
+| name       | [Name] Network name (accepts regex)                               |
+| id         | [ID] Full or partial network ID                                   |
+| label      | [Key] or [Key=Value] Label assigned to a network                  |
+| driver     | [Driver] `bridge` or ,`macvlan` is supported                      |
+| until      | [Until] Show all networks that were created before the given time |
 
-#### **--format**
+#### **--format**=*format*
 
 Change the default output format.  This can be of a supported type like 'json'
 or a Go template.
 Valid placeholders for the Go template are listed below:
 
-| **Placeholder** | **Description**                 |
-| --------------- | --------------------------------|
-| .ID             | Network ID                      |
-| .Name           | Network name                    |
-| .Plugins        | Network Plugins                 |
-| .Labels         | Network labels                  |
-| .Version        | CNI Version of the config file	|
+| **Placeholder**   | **Description**                           |
+| ----------------- | ----------------------------------------- |
+| .ID               | Network ID                                |
+| .Name             | Network name                              |
+| .Driver           | Network driver                            |
+| .Labels           | Network labels                            |
+| .Options          | Network options                           |
+| .IPAMOptions      | Network ipam options                      |
+| .Created          | Timestamp when the network was created    |
+| .Internal         | Network is internal (boolean)             |
+| .IPv6Enabled      | Network has ipv6 subnet (boolean)         |
+| .DNSEnabled       | Network has dns enabled (boolean)         |
+| .NetworkInterface | Name of the network interface on the host |
+| .Subnets          | List of subnets on this network           |
 
 #### **--noheading**
 
@@ -47,7 +54,7 @@ Omit the table headings from the listing of networks.
 
 #### **--no-trunc**
 
-Do not truncate the network ID. The network ID is not displayed by default and must be specified with **--format**.
+Do not truncate the network ID.
 
 #### **--quiet**, **-q**
 
@@ -58,17 +65,16 @@ The `quiet` option will restrict the output to only the network names.
 Display networks
 
 ```
-# podman network ls
-NAME      VERSION   PLUGINS
-podman    0.3.0     bridge,portmap
-podman2   0.3.0     bridge,portmap
-outside   0.3.0     bridge
-podman9   0.3.0     bridge,portmap
+$ podman network ls
+NETWORK ID    NAME         DRIVER
+88a7120ee19d  podman       bridge
+6dd508dbf8cd  cni-podman6  bridge
+8e35c2cd3bf6  cni-podman5  macvlan
 ```
 
 Display only network names
 ```
-# podman network ls -q
+$ podman network ls -q
 podman
 podman2
 outside
@@ -77,14 +83,23 @@ podman9
 
 Display name of network which support bridge plugin
 ```
-# podman network ls --filter plugin=portmap --format {{.Name}}
+$ podman network ls --filter driver=bridge --format {{.Name}}
 podman
 podman2
 podman9
 ```
+List networks with their subnets
+```
+$ podman network ls --format "{{.Name}}: {{range .Subnets}}{{.Subnet}} {{end}}"
+podman: 10.88.0.0/16
+cni-podman3: 10.89.30.0/24 fde4:f86f:4aab:e68f::/64
+macvlan:
+```
 
 ## SEE ALSO
-podman(1), podman-network(1), podman-network-inspect(1)
+**[podman(1)](podman.1.md)**, **[podman-network(1)](podman-network.1.md)**, **[podman-network-inspect(1)](podman-network-inspect.1.md)**, **[podman-network-create(1)](podman-network-create.1.md)**
 
 ## HISTORY
+August 2021, Updated with the new network format by Paul Holzinger <pholzing@redhat.com>
+
 August 2019, Originally compiled by Brent Baude <bbaude@redhat.com>