public void CustomResolverForContainerShallWork()
{
bool executedCustomResolver = false;
using (
var container =
Fd.UseContainer()
.UseImage("postgres:9.6-alpine")
.WithEnvironment("POSTGRES_PASSWORD=mysecretpassword")
.ExposePort(5432)
.UseCustomResolver((
ports, portAndProto, dockerUri) =>
{
executedCustomResolver = true;
if (null == ports || string.IsNullOrEmpty(portAndProto))
{
return(null);
}
if (!ports.TryGetValue(portAndProto, out var endpoints))
{
return(null);
}
if (null == endpoints || endpoints.Length == 0)
{
return(null);
}
if (CommandExtensions.IsNative())
{
return(endpoints[0]);
}
if (CommandExtensions.IsEmulatedNative())
{
return(CommandExtensions.IsDockerDnsAvailable()
? new IPEndPoint(CommandExtensions.EmulatedNativeAddress(), endpoints[0].Port)
: new IPEndPoint(IPAddress.Loopback, endpoints[0].Port));
}
if (Equals(endpoints[0].Address, IPAddress.Any) && null != dockerUri)
{
return(new IPEndPoint(IPAddress.Parse(dockerUri.Host), endpoints[0].Port));
}
return(endpoints[0]);
})
.WaitForPort("5432/tcp", 30000 /*30s*/)
.Build()
.Start())
{
var state = container.GetConfiguration(true /*force*/).State.ToServiceState();
Assert.AreEqual(ServiceRunningState.Running, state);
Assert.IsTrue(executedCustomResolver);
}
}
/// <summary>
/// Translates a docker exposed port and protocol (on format 'port/proto' e.g. '534/tcp') to a
/// host endpoint that can be contacted outside the container.
/// </summary>
/// <param name="ports">The ports from the <see cref="ContainerNetworkSettings.Ports" /> property.</param>
/// <param name="portAndProto">The port and protocol string.</param>
/// <param name="dockerUri">Optional docker uri to use when the adress is 0.0.0.0 in the endpoint.</param>
/// <returns>A endpoint of the host exposed ip and port into the container port. If none is found, null is returned.</returns>
public static IPEndPoint ToHostPort(this Dictionary <string, HostIpEndpoint[]> ports, string portAndProto,
Uri dockerUri = null)
{
if (null == ports || string.IsNullOrEmpty(portAndProto))
{
return(null);
}
HostIpEndpoint[] endpoints;
if (!ports.TryGetValue(portAndProto, out endpoints))
{
return(null);
}
if (null == endpoints || endpoints.Length == 0)
{
return(null);
}
if (CommandExtensions.IsNative())
{
return(endpoints[0]);
}
if (CommandExtensions.IsEmulatedNative())
{
if (CommandExtensions.IsDockerDnsAvailable())
{
return(new IPEndPoint(CommandExtensions.EmulatedNativeAdress(), endpoints[0].Port));
}
return(new IPEndPoint(IPAddress.Loopback, endpoints[0].Port));
}
if (Equals(endpoints[0].Address, IPAddress.Any) && null != dockerUri)
{
return(new IPEndPoint(IPAddress.Parse(dockerUri.Host), endpoints[0].Port));
}
return(endpoints[0]);
}
