support advanced network configuration via cli

Rework the --network parse logic to support multiple networks with
specific network configuration settings.
--network can now be set multiple times. For bridge network mode the
following options have been added:
  - **alias=name**: Add network-scoped alias for the container.
  - **ip=IPv4**: Specify a static ipv4 address for this container.
  - **ip=IPv6**: Specify a static ipv6 address for this container.
  - **mac=MAC**: Specify a static mac address address for this container.
  - **interface_name**: Specify a name for the created network interface inside the container.

So now you can set --network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99
for the default bridge network as well as for network names.
This is better than using --ip because we can set the ip per network
without any confusion which network the ip address should be assigned
to.
The --ip, --mac-address and --network-alias options are still supported
but --ip or --mac-address can only be set when only one network is set.
This limitation already existed previously.

The ability to specify a custom network interface name is new
Fixes #11534

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

1 files changed, 20 insertions, 0 deletions

diff --git a/test/e2e/run_staticip_test.go b/test/e2e/run_staticip_test.go
index 6dd7a14d0..eb7dc9d11 100644
--- a/test/e2e/run_staticip_test.go
+++ b/test/e2e/run_staticip_test.go
@@ -65,6 +65,26 @@ var _ = Describe("Podman run with --ip flag", func() {
 		Expect(result.OutputToString()).To(ContainSubstring(ip + "/16"))
 	})
 
+	It("Podman run with --network bridge:ip=", func() {
+		ip := GetRandomIPAddress()
+		result := podmanTest.Podman([]string{"run", "-ti", "--network", "bridge:ip=" + ip, ALPINE, "ip", "addr"})
+		result.WaitWithDefaultTimeout()
+		Expect(result).Should(Exit(0))
+		Expect(result.OutputToString()).To(ContainSubstring(ip + "/16"))
+	})
+
+	It("Podman run with --network net:ip=,mac=,interface_name=", func() {
+		ip := GetRandomIPAddress()
+		mac := "44:33:22:11:00:99"
+		intName := "myeth"
+		result := podmanTest.Podman([]string{"run", "-ti", "--network", "bridge:ip=" + ip + ",mac=" + mac + ",interface_name=" + intName, ALPINE, "ip", "addr"})
+		result.WaitWithDefaultTimeout()
+		Expect(result).Should(Exit(0))
+		Expect(result.OutputToString()).To(ContainSubstring(ip + "/16"))
+		Expect(result.OutputToString()).To(ContainSubstring(mac))
+		Expect(result.OutputToString()).To(ContainSubstring(intName))
+	})
+
 	It("Podman run two containers with the same IP", func() {
 		ip := GetRandomIPAddress()
 		result := podmanTest.Podman([]string{"run", "-dt", "--ip", ip, nginx})