Function TestDefaultNetworkOpts

integration/network/network_linux_test.go:104–180

(t *testing.T)

}

func TestDefaultNetworkOpts(t *testing.T) {
	skip.If(t, testEnv.IsRemoteDaemon)
	skip.If(t, testEnv.IsRootless, "rootless mode has different view of network")
	ctx := testutil.StartSpan(baseContext, t)

	tests := []struct {
		name       string
		mtu        int
		configFrom bool
		args       []string
	}{
		{
			name: "default value",
			mtu:  1500,
			args: []string{},
		},
		{
			name: "cmdline value",
			mtu:  1234,
			args: []string{"--default-network-opt", "bridge=com.docker.network.driver.mtu=1234"},
		},
		{
			name:       "config-from value",
			configFrom: true,
			mtu:        1233,
			args:       []string{"--default-network-opt", "bridge=com.docker.network.driver.mtu=1234"},
		},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			ctx := testutil.StartSpan(ctx, t)
			d := daemon.New(t)
			d.StartWithBusybox(ctx, t, tc.args...)
			defer d.Stop(t)
			c := d.NewClientT(t)
			defer c.Close()

			if tc.configFrom {
				// Create a new network config
				network.CreateNoError(ctx, t, c, "from-net", func(create *client.NetworkCreateOptions) {
					create.ConfigOnly = true
					create.Options = map[string]string{
						"com.docker.network.driver.mtu": fmt.Sprint(tc.mtu),
					}
				})
				defer c.NetworkRemove(ctx, "from-net", client.NetworkRemoveOptions{})
			}

			// Create a new network
			networkName := "testnet"
			networkId := network.CreateNoError(ctx, t, c, networkName, func(create *client.NetworkCreateOptions) {
				if tc.configFrom {
					create.ConfigFrom = "from-net"
				}
			})
			defer c.NetworkRemove(ctx, networkName, client.NetworkRemoveOptions{})