public override Task ExecuteAsync(OutputContext output, ApplicationBuilder application, ServiceBuilder service)
{
// No need to do this computation for a non-project since we're not deploying it.
if (!(service is ProjectServiceBuilder project))
{
return(Task.CompletedTask);
}
// Compute ASPNETCORE_URLS based on the bindings exposed by *this* project.
foreach (var binding in service.Bindings)
{
if (binding.Protocol == null && binding.ConnectionString == null)
{
binding.Protocol = "http";
}
if (binding.Port == null && binding.Protocol == "http")
{
binding.Port = 80;
}
if (binding.Protocol == "http")
{
var port = binding.Port ?? 80;
var urls = $"http://*{(port == 80 ? "" : (":" + port.ToString()))}";
project.EnvironmentVariables.Add(new EnvironmentVariableBuilder("ASPNETCORE_URLS")
{
Value = urls,
});
project.EnvironmentVariables.Add(new EnvironmentVariableBuilder("PORT")
{
Value = port.ToString(CultureInfo.InvariantCulture),
});
break;
}
}
// Process bindings and turn them into environment variables and secrets. There's
// some duplication with the code in m8s (Application.cs) for populating environments.
//
// service.Service.Bindings is the bindings OUT - this step computes bindings IN.
var bindings = new ComputedBindings();
service.Outputs.Add(bindings);
foreach (var other in application.Services)
{
if (object.ReferenceEquals(service, other))
{
continue;
}
foreach (var binding in other.Bindings)
{
if (other is ProjectServiceBuilder)
{
// The other thing is a project, and will be deployed along with this
// service.
var configName =
(binding.Name is null || binding.Name == other.Name) ?
other.Name.ToUpperInvariant() :
$"{other.Name.ToUpperInvariant()}__{binding.Name.ToUpperInvariant()}";
if (!string.IsNullOrEmpty(binding.ConnectionString))
{
// Special case for connection strings
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"CONNECTIONSTRINGS__{configName}", binding.ConnectionString));
continue;
}
if (binding.Protocol == "https")
{
// We skip https for now in deployment, because the E2E requires certificates
// and we haven't done those features yet.
continue;
}
if (binding.Protocol == null)
{
binding.Protocol = "http";
}
if (binding.Port == null && binding.Protocol == "http")
{
binding.Port = 80;
}
if (!string.IsNullOrEmpty(binding.Protocol))
{
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"SERVICE__{configName}__PROTOCOL", binding.Protocol));
}
if (binding.Port != null)
{
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"SERVICE__{configName}__PORT", binding.Port.Value.ToString()));
}
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"SERVICE__{configName}__HOST", binding.Host ?? other.Name));
}
else
{
// The other service is not a project, so we'll use secrets.
if (!string.IsNullOrEmpty(binding.ConnectionString))
{
bindings.Bindings.Add(new SecretConnectionStringInputBinding(
name: $"binding-{Environment}-{(binding.Name == null ? other.Name.ToLowerInvariant() : (other.Name.ToLowerInvariant() + "-" + binding.Name.ToLowerInvariant()))}-secret",
other,
binding,
keyname: $"CONNECTIONSTRINGS__{(binding.Name == null ? other.Name.ToUpperInvariant() : (other.Name.ToUpperInvariant() + "__" + binding.Name.ToUpperInvariant()))}"));
}
else
{
bindings.Bindings.Add(new SecretUrlInputBinding(
name: $"binding-{Environment}-{(binding.Name == null ? other.Name.ToLowerInvariant() : (other.Name.ToLowerInvariant() + "-" + binding.Name.ToLowerInvariant()))}-secret",
other,
binding,
keynamebase: $"SERVICE__{(binding.Name == null ? other.Name.ToUpperInvariant() : (other.Name.ToUpperInvariant() + "__" + binding.Name.ToUpperInvariant()))}"));
}
}
}
}
return(Task.CompletedTask);
}
private ComputedBindings ComputeBindings(ApplicationBuilder application, IEnumerable <string> dependencies)
{
var bindings = new ComputedBindings();
foreach (var dependency in dependencies)
{
var other = application.Services.Single(a => a.Name == dependency);
foreach (var binding in other.Bindings)
{
if (other is ProjectServiceBuilder)
{
// The other thing is a project, and will be deployed along with this
// service.
var configName =
(binding.Name is null || binding.Name == other.Name) ?
other.Name.ToUpperInvariant() :
$"{other.Name.ToUpperInvariant()}__{binding.Name.ToUpperInvariant()}";
if (!string.IsNullOrEmpty(binding.ConnectionString))
{
// Special case for connection strings
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"CONNECTIONSTRINGS__{configName}", binding.ConnectionString));
continue;
}
if (binding.Protocol == "https")
{
// We skip https for now in deployment, because the E2E requires certificates
// and we haven't done those features yet.
continue;
}
if (binding.Protocol == null)
{
binding.Protocol = "http";
}
if (binding.Port == null && binding.Protocol == "http")
{
binding.Port = 80;
}
if (!string.IsNullOrEmpty(binding.Protocol))
{
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"SERVICE__{configName}__PROTOCOL", binding.Protocol));
}
if (binding.Port != null)
{
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"SERVICE__{configName}__PORT", binding.Port.Value.ToString()));
}
bindings.Bindings.Add(new EnvironmentVariableInputBinding($"SERVICE__{configName}__HOST", binding.Host ?? other.Name));
}
else
{
// The other service is not a project, so we'll use secrets.
if (!string.IsNullOrEmpty(binding.ConnectionString))
{
bindings.Bindings.Add(new SecretConnectionStringInputBinding(
name: $"binding-{Environment}-{(binding.Name == null ? other.Name.ToLowerInvariant() : (other.Name.ToLowerInvariant() + "-" + binding.Name.ToLowerInvariant()))}-secret",
other,
binding,
keyname: $"CONNECTIONSTRINGS__{(binding.Name == null ? other.Name.ToUpperInvariant() : (other.Name.ToUpperInvariant() + "__" + binding.Name.ToUpperInvariant()))}"));
}
else
{
bindings.Bindings.Add(new SecretUrlInputBinding(
name: $"binding-{Environment}-{(binding.Name == null ? other.Name.ToLowerInvariant() : (other.Name.ToLowerInvariant() + "-" + binding.Name.ToLowerInvariant()))}-secret",
other,
binding,
keynamebase: $"SERVICE__{(binding.Name == null ? other.Name.ToUpperInvariant() : (other.Name.ToUpperInvariant() + "__" + binding.Name.ToUpperInvariant()))}"));
}
}
}
}
return(bindings);
}
private static void AddEnvironmentVariablesForComputedBindings(YamlSequenceNode env, ComputedBindings bindings)
{
foreach (var binding in bindings.Bindings.OfType <EnvironmentVariableInputBinding>())
{
env.Add(new YamlMappingNode()
{
{ "name", binding.Name },
{ "value", new YamlScalarNode(binding.Value)
{
Style = ScalarStyle.SingleQuoted,
} },
});
}
foreach (var binding in bindings.Bindings.OfType <SecretInputBinding>())
{
//- name: SECRET_USERNAME
// valueFrom:
// secretKeyRef:
// name: mysecret
// key: username
if (binding is SecretConnectionStringInputBinding connectionStringBinding)
{
AddSecret(env, connectionStringBinding.KeyName, binding.Name, "connectionstring");
}
else if (binding is SecretUrlInputBinding urlBinding)
{
AddSecret(env, $"{urlBinding.KeyNameBase}__PROTOCOL", binding.Name, "protocol");
AddSecret(env, $"{urlBinding.KeyNameBase}__HOST", binding.Name, "host");
AddSecret(env, $"{urlBinding.KeyNameBase}__PORT", binding.Name, "port");
}
}
