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;
}
var chartDirectory = Path.Combine(project.ProjectFile.DirectoryName, "charts");
if (Directory.Exists(chartDirectory) && !Force)
{
throw new CommandException("'charts' directory already exists for project. use '--force' to overwrite.");
}
else if (Directory.Exists(chartDirectory))
{
Directory.Delete(chartDirectory, recursive: true);
}
var chart = new HelmChartStep();
await HelmChartGenerator.GenerateAsync(
output,
application,
project,
container,
chart,
new DirectoryInfo(chartDirectory));
output.WriteInfoLine($"Generated Helm Chart at '{Path.Combine(chartDirectory, chart.ChartName)}'.");
}
public static void ApplyHelmChartDefaults(ApplicationBuilder application, ServiceBuilder service, ContainerInfo container, HelmChartStep chart)
{
if (application is null)
{
throw new ArgumentNullException(nameof(application));
}
if (service is null)
{
throw new ArgumentNullException(nameof(service));
}
if (container is null)
{
throw new ArgumentNullException(nameof(container));
}
if (chart is null)
{
throw new ArgumentNullException(nameof(chart));
}
chart.ChartName ??= service.Name.ToLowerInvariant();
}
public static async Task BuildHelmChartAsync(OutputContext output, ApplicationBuilder application, ProjectServiceBuilder project, ContainerInfo container, HelmChartStep chart)
{
if (output is null)
{
throw new ArgumentNullException(nameof(output));
}
if (application is null)
{
throw new ArgumentNullException(nameof(application));
}
if (project is null)
{
throw new ArgumentNullException(nameof(project));
}
if (container is null)
{
throw new ArgumentNullException(nameof(container));
}
if (chart is null)
{
throw new ArgumentNullException(nameof(chart));
}
var projectDirectory = project.ProjectFile.DirectoryName;
var outputDirectoryPath = Path.Combine(projectDirectory, "bin");
using var tempDirectory = TempDirectory.Create();
HelmChartGenerator.ApplyHelmChartDefaults(application, project, container, chart);
var chartRoot = Path.Combine(projectDirectory, "charts");
var chartPath = Path.Combine(chartRoot, chart.ChartName);
output.WriteDebugLine($"Looking for existing chart in '{chartPath}'.");
if (Directory.Exists(chartPath))
{
output.WriteDebugLine($"Found existing chart in '{chartPath}'.");
}
else
{
chartRoot = tempDirectory.DirectoryPath;
chartPath = Path.Combine(chartRoot, chart.ChartName);
output.WriteDebugLine($"Generating chart in '{chartPath}'.");
await HelmChartGenerator.GenerateAsync(output, application, project, container, chart, new DirectoryInfo(tempDirectory.DirectoryPath));
}
output.WriteDebugLine("Running 'helm package'.");
output.WriteCommandLine("helm", $"package -d \"{outputDirectoryPath}\" --version {project.Version.Replace('+', '-')} --app-version {project.Version.Replace('+', '-')}");
var capture = output.Capture();
var exitCode = await Process.ExecuteAsync(
"helm",
$"package . -d \"{outputDirectoryPath}\" --version {project.Version.Replace('+', '-')} --app-version {project.Version.Replace('+', '-')}",
workingDir : chartPath,
stdOut : capture.StdOut,
stdErr : capture.StdErr);
output.WriteDebugLine($"Running 'helm package' exit code: {exitCode}");
if (exitCode != 0)
{
throw new CommandException("Running 'helm package' failed.");
}
output.WriteInfoLine($"Created Helm Chart: {Path.Combine(outputDirectoryPath, chart.ChartName + "-" + project.Version.Replace('+', '-') + ".tgz")}");
}
public static async Task GenerateAsync(OutputContext output, ApplicationBuilder application, ProjectServiceBuilder project, ContainerInfo container, HelmChartStep chart, DirectoryInfo outputDirectory)
{
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));
}
if (chart is null)
{
throw new ArgumentNullException(nameof(chart));
}
if (outputDirectory is null)
{
throw new ArgumentNullException(nameof(outputDirectory));
}
ApplyHelmChartDefaults(application, project, container, chart);
// The directory with the charts needs to be the same as the chart name
var chartDirectoryPath = Path.Combine(outputDirectory.FullName, chart.ChartName);
Directory.CreateDirectory(chartDirectoryPath);
var templateDirectoryPath = Path.Combine(
Path.GetDirectoryName(typeof(HelmChartGenerator).Assembly.Location) !,
"Templates",
"Helm");
DirectoryCopy.Copy(templateDirectoryPath, chartDirectoryPath);
// Write Chart.yaml
//
// apiVersion: v1
// name: <appname>
// version: <version>
// appVersion: <version>
await File.WriteAllLinesAsync(Path.Combine(chartDirectoryPath, "Chart.yaml"), new[]
{
$"apiVersion: v1",
$"name: {chart.ChartName}",
$"# helm requires the version and appVersion to specified in Chart.yaml",
$"# tye will override these values when packaging the chart",
$"version: {project.Version.Replace('+', '-')}",
$"appVersion: {project.Version.Replace('+', '-')}"
});
// Write values.yaml
//
// image:
// repository: rynowak.azurecr.io/rochambot/gamemaster
await File.WriteAllLinesAsync(Path.Combine(chartDirectoryPath, "values.yaml"), new[]
{
$"image:",
$" repository: {container.ImageName}",
});
}