public override async Task ExecuteAsync(OutputContext output, ApplicationBuilder application, ServiceBuilder service)
{
if (SkipWithoutProject(output, service, out var project))
{
return;
}
if (SkipWithoutContainerInfo(output, service, out var container))
{
return;
}
if (container.UseMultiphaseDockerfile == false)
{
throw new CommandException("Generated Dockerfile workflow does not support single-phase Dockerfiles.");
}
container.UseMultiphaseDockerfile ??= true;
var dockerFilePath = Path.Combine(project.ProjectFile.DirectoryName, "Dockerfile");
if (File.Exists(dockerFilePath) && !Force)
{
throw new CommandException("'Dockerfile' already exists for project. use '--force' to overwrite.");
}
File.Delete(dockerFilePath);
await DockerfileGenerator.WriteDockerfileAsync(output, application, project, container, dockerFilePath);
output.WriteInfoLine($"Generated Dockerfile at '{dockerFilePath}'.");
}
public static async Task BuildContainerImageAsync(OutputContext output, Application application, ServiceEntry service, Project project, ContainerInfo container)
{
if (output is null)
{
throw new ArgumentNullException(nameof(output));
}
if (application is null)
{
throw new ArgumentNullException(nameof(application));
}
if (service is null)
{
throw new ArgumentNullException(nameof(service));
}
if (project is null)
{
throw new ArgumentNullException(nameof(project));
}
if (container is null)
{
throw new ArgumentNullException(nameof(container));
}
using var tempFile = TempFile.Create();
var dockerFilePath = Path.Combine(application.GetProjectDirectory(project), Path.GetDirectoryName(project.RelativeFilePath) !, "Dockerfile");
if (File.Exists(dockerFilePath))
{
output.WriteDebugLine($"Using existing dockerfile '{dockerFilePath}'.");
}
else
{
await DockerfileGenerator.WriteDockerfileAsync(output, application, service, project, container, tempFile.FilePath);
dockerFilePath = tempFile.FilePath;
}
// We need to know if this is a single-phase or multi-phase dockerfile because the context directory will be
// different depending on that choice.
string contextDirectory;
if (container.UseMultiphaseDockerfile ?? true)
{
contextDirectory = ".";
}
else
{
var publishOutput = service.Outputs.OfType <ProjectPublishOutput>().FirstOrDefault();
if (publishOutput is null)
{
throw new InvalidOperationException("We should have published the project for a single-phase dockerfile.");
}
contextDirectory = publishOutput.Directory.FullName;
}
output.WriteDebugLine("Running 'docker build'.");
output.WriteCommandLine("docker", $"build \"{contextDirectory}\" -t {container.ImageName}:{container.ImageTag} -f \"{dockerFilePath}\"");
var capture = output.Capture();
var exitCode = await Process.ExecuteAsync(
$"docker",
$"build \"{contextDirectory}\" -t {container.ImageName}:{container.ImageTag} -f \"{dockerFilePath}\"",
application.GetProjectDirectory(project),
stdOut : capture.StdOut,
stdErr : capture.StdErr);
output.WriteDebugLine($"Done running 'docker build' exit code: {exitCode}");
if (exitCode != 0)
{
throw new CommandException("'docker build' failed.");
}
output.WriteInfoLine($"Created Docker Image: '{container.ImageName}:{container.ImageTag}'");
service.Outputs.Add(new DockerImageOutput(container.ImageName !, container.ImageTag !));
}
public static async Task BuildContainerImageAsync(OutputContext output, ApplicationBuilder application, DotnetProjectServiceBuilder project, ContainerInfo container)
{
if (output is null)
{
throw new ArgumentNullException(nameof(output));
}
if (application is null)
{
throw new ArgumentNullException(nameof(application));
}
if (project is null)
{
throw new ArgumentNullException(nameof(project));
}
if (container is null)
{
throw new ArgumentNullException(nameof(container));
}
string contextDirectory;
var dockerFilePath = Path.Combine(project.ProjectFile.DirectoryName !, "Dockerfile");
TempFile? tempFile = null;
TempDirectory?tempDirectory = null;
try
{
// We need to know if this is a single-phase or multi-phase Dockerfile because the context directory will be
// different depending on that choice.
//
// For the cases where generate a Dockerfile, we have the constraint that we need
// to place it on the same drive (Windows) as the docker context.
if (container.UseMultiphaseDockerfile ?? true)
{
// For a multi-phase Docker build, the context is always the project directory.
contextDirectory = ".";
if (File.Exists(dockerFilePath))
{
output.WriteDebugLine($"Using existing Dockerfile '{dockerFilePath}'.");
}
else
{
// We need to write the file, let's stick it under obj.
Directory.CreateDirectory(project.IntermediateOutputPath);
dockerFilePath = Path.Combine(project.IntermediateOutputPath, "Dockerfile");
// Clean up file when done building image
tempFile = new TempFile(dockerFilePath);
await DockerfileGenerator.WriteDockerfileAsync(output, application, project, container, tempFile.FilePath);
}
}
else
{
// For a single-phase Docker build the context is always the directory containing the publish
// output. We need to put the Dockerfile in the context directory so it's on the same drive (Windows).
var publishOutput = project.Outputs.OfType <ProjectPublishOutput>().FirstOrDefault();
if (publishOutput is null)
{
throw new InvalidOperationException("We should have published the project for a single-phase Dockerfile.");
}
contextDirectory = publishOutput.Directory.FullName;
// Clean up directory when done building image
tempDirectory = new TempDirectory(publishOutput.Directory);
if (File.Exists(dockerFilePath))
{
output.WriteDebugLine($"Using existing Dockerfile '{dockerFilePath}'.");
File.Copy(dockerFilePath, Path.Combine(contextDirectory, "Dockerfile"));
dockerFilePath = Path.Combine(contextDirectory, "Dockerfile");
}
else
{
// No need to clean up, it's in a directory we're already cleaning up.
dockerFilePath = Path.Combine(contextDirectory, "Dockerfile");
await DockerfileGenerator.WriteDockerfileAsync(output, application, project, container, dockerFilePath);
}
}
output.WriteDebugLine("Running 'docker build'.");
output.WriteCommandLine("docker", $"build \"{contextDirectory}\" -t {container.ImageName}:{container.ImageTag} -f \"{dockerFilePath}\"");
var capture = output.Capture();
var exitCode = await application.ContainerEngine.ExecuteAsync(
$"build \"{contextDirectory}\" -t {container.ImageName}:{container.ImageTag} -f \"{dockerFilePath}\"",
project.ProjectFile.DirectoryName,
stdOut : capture.StdOut,
stdErr : capture.StdErr);
output.WriteDebugLine($"Done running 'docker build' exit code: {exitCode}");
if (exitCode != 0)
{
throw new CommandException("'docker build' failed.");
}
output.WriteInfoLine($"Created Docker Image: '{container.ImageName}:{container.ImageTag}'");
project.Outputs.Add(new DockerImageOutput(container.ImageName !, container.ImageTag !));
}
finally
{
tempDirectory?.Dispose();
tempFile?.Dispose();
}
}