allows specifying the Kubernetes imagePullSecrets (#884)

* allows specifying the Kubernetes imagePullSecrets in configuration to pull from a private registry

* removed trailing whitespace 🙄

* removes interactive prompt for pull secret

* adds copyright info

* renames registry.hostname to regisry.name in tye.yaml schema

* reverted unnecessary change to project file

* fixes registry entry in schema documentation

Co-authored-by: David Fowler <davidfowl@gmail.com>

docs/reference/schema.md

@@ -45,7 +45,7 @@ services:
 
 ```yaml
 name: myapplication
-registry: exampleuser
+registry: ...
 namespace: examplenamespace
 network: examplenetwork
 ingress: ...
@@ -60,16 +60,9 @@ Configures the name of the application. This will appear in some Kubernetes labe
 
 If the name name is not specified, then the lowercased directory name containing the `tye.yaml` file will be used as the default.
 
-#### `registry` (string)
+#### `registry` (`Registry`)
 
-Allows storing the name of the container registry in configuration. This is used when building and deploying images for two purposes:
-
-- Determining how to tag the images
-- Determining where to push the images
-
-The registry could be a DockerHub username (`exampleuser`) or the hostname of a container registry (`example.azurecr.io`).
-
-If this is not specified in configuration, interactive deployments will prompt for it.
+Allows storing the name of the container registry and optional credentials secret in configuration.
 
 #### `namespace` (string)
 
@@ -105,6 +98,33 @@ Specifies the list of services. Applications must have at least one service.
 
 Indicates the solution file (.sln) or filter (.slnf) to use when building project-based services in watch mode. If omitted, those services will be built individually. Specifying the solution [filter] can help reduce repeated builds of shared libraries when in watch mode.
 
+## Registry
+
+Allows storing the name of the container registry in configuration. This is used when building and deploying images for two purposes:
+
+- Determining how to tag the images
+- Determining where to push the images
+
+If this is not specified in configuration, interactive deployments will prompt for it.
+
+### Registry Example
+
+```yaml
+registry:
+  name: example.azurecr.io
+  pullSecret: acr-secret
+```
+
+### Registry Properties
+
+#### `name` (string) *required*
+
+The `name` could be a DockerHub username (`exampleuser`) or the hostname of a container registry (`example.azurecr.io`).
+
+#### `pullSecret` (string)
+
+Specifies the optional secret, that Kubernetes should get the credentials from to pull the image from a private registry.
+
 ## Service
 
 `Service` elements appear in a list within the `services` root property.

src/Microsoft.Tye.Core/ApplicationFactory.cs

@@ -48,9 +48,9 @@ namespace Microsoft.Tye
                     continue;
                 }
 
-                if (config == rootConfig && !string.IsNullOrEmpty(config.Registry))
+                if (config == rootConfig && config.Registry != null)
                 {
-                    root.Registry = new ContainerRegistry(config.Registry);
+                    root.Registry = new ContainerRegistry(config.Registry.Hostname, config.Registry.PullSecret);
                 }
 
                 if (config == rootConfig)

src/Microsoft.Tye.Core/ConfigModel/ConfigApplication.cs

@@ -30,7 +30,7 @@ namespace Microsoft.Tye.ConfigModel
 
         public string? Namespace { get; set; }
 
-        public string? Registry { get; set; }
+        public ConfigRegistry? Registry { get; set; }
 
         public ContainerEngineType? ContainerEngineType { get; set; }
 
@@ -64,6 +64,16 @@ namespace Microsoft.Tye.ConfigModel
                 }
             }
 
+            if (config.Registry != null)
+            {
+                if (!Validator.TryValidateObject(config.Registry, new ValidationContext(config.Registry), results, validateAllProperties: true))
+                {
+                    throw new TyeYamlException(
+                        "Registry validation failed." + Environment.NewLine +
+                        string.Join(Environment.NewLine, results.Select(r => r.ErrorMessage)));
+                }
+            }
+
             foreach (var service in config.Services)
             {
                 context = new ValidationContext(service);

src/Microsoft.Tye.Core/ConfigModel/ConfigRegistry.cs

@@ -0,0 +1,16 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.ComponentModel.DataAnnotations;
+
+namespace Microsoft.Tye.ConfigModel
+{
+    public class ConfigRegistry
+    {
+        [Required]
+        public string Hostname { get; set; } = null!;
+
+        public string? PullSecret { get; set; }
+    }
+}

src/Microsoft.Tye.Core/ContainerRegistry.cs

@@ -8,11 +8,13 @@ namespace Microsoft.Tye
 {
     public sealed class ContainerRegistry
     {
-        public ContainerRegistry(string hostname)
+        public ContainerRegistry(string hostname, string? pullSecret)
         {
             Hostname = hostname ?? throw new ArgumentNullException(nameof(hostname));
+            PullSecret = pullSecret;
         }
 
         public string Hostname { get; }
+        public string? PullSecret { get; }
     }
 }

src/Microsoft.Tye.Core/KubernetesManifestGenerator.cs

@@ -491,6 +491,16 @@ namespace Microsoft.Tye
                 volumeMount.Add("mountPath", "/var/tye/diagnostics");
             }
 
+            if (!string.IsNullOrWhiteSpace(application.Registry?.PullSecret))
+            {
+                var imagePullSecrets = new YamlSequenceNode();
+                spec.Add("imagePullSecrets", imagePullSecrets);
+
+                var secretNode = new YamlMappingNode();
+                imagePullSecrets.Add(secretNode);
+                secretNode.Add("name", application.Registry.PullSecret);
+            }
+
             if (!project.RelocateDiagnosticsDomainSockets)
             {
                 return new KubernetesDeploymentOutput(project.Name, new YamlDocument(root));

src/Microsoft.Tye.Core/Serialization/ConfigApplicationParser.cs

@@ -31,7 +31,7 @@ namespace Tye.Serialization
                         app.Network = YamlParser.GetScalarValue(key, child.Value);
                         break;
                     case "registry":
-                        app.Registry = YamlParser.GetScalarValue(key, child.Value);
+                        app.Registry = ConfigRegistryParser.HandleRegistry(key, child.Value);
                         break;
                     case "containerEngine":
                         string engine = YamlParser.GetScalarValue(key, child.Value);

src/Microsoft.Tye.Core/Serialization/ConfigRegistryParser.cs

@@ -0,0 +1,58 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Microsoft.Tye.ConfigModel;
+using YamlDotNet.RepresentationModel;
+
+namespace Tye.Serialization
+{
+    public class ConfigRegistryParser
+    {
+        public static ConfigRegistry HandleRegistry(string key, YamlNode node)
+        {
+            ConfigRegistry configRegistry;
+            if (node.NodeType == YamlNodeType.Scalar)
+            {
+                configRegistry = new ConfigRegistry
+                {
+                    Hostname = ((YamlScalarNode)node).Value!
+                };
+            }
+            else if (node.NodeType == YamlNodeType.Mapping)
+            {
+                configRegistry = HandleRegistryMapping((YamlMappingNode)node);
+            }
+            else
+            {
+                throw new TyeYamlException(node.Start, CoreStrings.FormatExpectedYamlScalar(key));
+            }
+
+            return configRegistry;
+        }
+
+        private static ConfigRegistry HandleRegistryMapping(YamlMappingNode mappingNode)
+        {
+            var configRegistry = new ConfigRegistry();
+
+            foreach (var child in mappingNode.Children)
+            {
+                var key = YamlParser.GetScalarValue(child.Key);
+
+                switch (key)
+                {
+                    case "name":
+                        configRegistry.Hostname = YamlParser.GetScalarValue(key, child.Value);
+                        break;
+                    case "pullSecret":
+                        configRegistry.PullSecret = YamlParser.GetScalarValue(key, child.Value);
+                        break;
+                    default:
+                        throw new TyeYamlException(child.Key.Start, CoreStrings.FormatUnrecognizedKey(key));
+                }
+            }
+
+            return configRegistry;
+        }
+    }
+}

src/tye/Program.DeployCommand.cs

@@ -118,7 +118,7 @@ namespace Microsoft.Tye
                 var registry = output.Prompt("Enter the Container Registry (ex: 'example.azurecr.io' for Azure or 'example' for dockerhub)", allowEmpty: !requireRegistry);
                 if (!string.IsNullOrWhiteSpace(registry))
                 {
-                    application.Registry = new ContainerRegistry(registry.Trim());
+                    application.Registry = new ContainerRegistry(registry.Trim(), null);
                 }
             }
             else if (application.Registry is null && requireRegistry)

test/E2ETest/TyeBuildTests.Dockerfile.cs

@@ -34,7 +34,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -70,7 +70,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -105,7 +105,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -143,7 +143,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -181,7 +181,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -228,7 +228,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile, "netcoreapp3.1");
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -262,7 +262,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile, "netcoreapp3.1");
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {

test/E2ETest/TyeBuildTests.cs

@@ -38,7 +38,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -69,7 +69,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -103,7 +103,7 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {

test/E2ETest/TyeGenerateTests.cs

@@ -41,7 +41,7 @@ namespace E2ETest
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
             // Need to add docker registry for generate
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -79,7 +79,7 @@ namespace E2ETest
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
             // Need to add docker registry for generate
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -120,7 +120,7 @@ namespace E2ETest
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
             // Need to add docker registry for generate
-            application.Registry = new ContainerRegistry("test");
+            application.Registry = new ContainerRegistry("test", null);
 
             try
             {
@@ -146,9 +146,9 @@ namespace E2ETest
 
         [ConditionalFact]
         [SkipIfDockerNotRunning]
-        public async Task GenerateWorksWithoutRegistry()
+        public async Task GenerateWorksWithRegistryPullSecret()
         {
-            await DockerAssert.DeleteDockerImagesAsync(output, "test-project");
+            await DockerAssert.DeleteDockerImagesAsync(output, "test/test-project");
 
             var projectName = "single-project";
             var environment = "production";
@@ -160,21 +160,61 @@ namespace E2ETest
             var outputContext = new OutputContext(sink, Verbosity.Debug);
             var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
 
+            // Need to add docker registry with pull secret for generate
+            application.Registry = new ContainerRegistry("test", "credsecret");
+
             try
             {
                 await GenerateHost.ExecuteGenerateAsync(outputContext, application, environment, interactive: false);
 
                 // name of application is the folder
                 var content = await File.ReadAllTextAsync(Path.Combine(projectDirectory.DirectoryPath, $"{projectName}-generate-{environment}.yaml"));
-                var expectedContent = await File.ReadAllTextAsync($"testassets/generate/{projectName}-noregistry.yaml");
+                var expectedContent = await File.ReadAllTextAsync($"testassets/generate/{projectName}-registrypullsecret.yaml");
 
                 YamlAssert.Equals(expectedContent, content, output);
 
-                await DockerAssert.AssertImageExistsAsync(output, "test-project");
+                await DockerAssert.AssertImageExistsAsync(output, "test/test-project");
             }
             finally
             {
-                await DockerAssert.DeleteDockerImagesAsync(output, "test-project");
+                await DockerAssert.DeleteDockerImagesAsync(output, "test/test-project");
+            }
+        }
+
+        [ConditionalFact]
+        [SkipIfDockerNotRunning]
+        public async Task GenerateWorksWithoutRegistry()
+        {
+            await DockerAssert.DeleteDockerImagesAsync(output, "test/test-project");
+
+            var projectName = "single-project";
+            var environment = "production";
+
+            using var projectDirectory = CopyTestProjectDirectory(projectName);
+
+            var projectFile = new FileInfo(Path.Combine(projectDirectory.DirectoryPath, "tye.yaml"));
+
+            var outputContext = new OutputContext(sink, Verbosity.Debug);
+            var application = await ApplicationFactory.CreateAsync(outputContext, projectFile);
+
+            // Need to add docker registry for generate
+            application.Registry = new ContainerRegistry("test", null);
+
+            try
+            {
+                await GenerateHost.ExecuteGenerateAsync(outputContext, application, environment, interactive: false);
+
+                // name of application is the folder
+                var content = await File.ReadAllTextAsync(Path.Combine(projectDirectory.DirectoryPath, $"{projectName}-generate-{environment}.yaml"));
+                var expectedContent = await File.ReadAllTextAsync($"testassets/generate/{projectName}.yaml");
+
+                YamlAssert.Equals(expectedContent, content, output);
+
+                await DockerAssert.AssertImageExistsAsync(output, "test/test-project");
+            }
+            finally
+            {
+                await DockerAssert.DeleteDockerImagesAsync(output, "test/test-project");
             }
         }
 

test/E2ETest/testassets/generate/single-project-registrypullsecret.yaml

@@ -0,0 +1,58 @@
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  name: test-project
+  labels:
+    app.kubernetes.io/name: 'test-project'
+    app.kubernetes.io/part-of: 'single-project'
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: test-project
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: 'test-project'
+        app.kubernetes.io/part-of: 'single-project'
+    spec:
+      containers:
+      - name: test-project
+        image: test/test-project:1.0.0
+        imagePullPolicy: Always
+        env:
+        - name: DOTNET_LOGGING__CONSOLE__DISABLECOLORS
+          value: 'true'
+        - name: ASPNETCORE_URLS
+          value: 'http://*'
+        - name: PORT
+          value: '80'
+        - name: SERVICE__TEST-PROJECT__PROTOCOL
+          value: 'http'
+        - name: SERVICE__TEST-PROJECT__PORT
+          value: '80'
+        - name: SERVICE__TEST-PROJECT__HOST
+          value: 'test-project'
+        ports:
+        - containerPort: 80
+      imagePullSecrets:
+      - name: credsecret
+...
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: test-project
+  labels:
+    app.kubernetes.io/name: 'test-project'
+    app.kubernetes.io/part-of: 'single-project'
+spec:
+  selector:
+    app.kubernetes.io/name: test-project
+  type: ClusterIP
+  ports:
+  - name: http
+    protocol: TCP
+    port: 80
+    targetPort: 80
+...