/// <summary>
/// Determines the version of the runtime image to use in the Dockerfile using the following logic:
/// (1) If both the platform name and version are provided, attempt to find the maximum satisfying version
/// from the supported runtime version list that meets the version spec "~{VERSION}". If no version can be found,
/// default to using the latest version in the list of supported runtime versions.
/// (2) If only the platform name is provided, default to using the latest version in the list of supported runtime versions.
/// (3) If neither the platform name nor version are provided, default to using the "dynamic" runtime tag.
/// </summary>
/// <param name="platformName">The name of the platform detected or provided.</param>
/// <param name="platformVersion">The version of the platform detected or provided.</param>
/// <returns>The converted platform runtime image version.</returns>
private string ConvertToRuntimeVersion(string platformName, string platformVersion)
{
if (!string.IsNullOrEmpty(platformName))
{
var runtimeVersions = this.supportedRuntimeVersions[platformName];
if (runtimeVersions == null || !runtimeVersions.Any())
{
return(DynamicRuntimeImageTag);
}
this.logger.LogDebug($"Supported runtime image tags for platform {platformName}: {string.Join(',', runtimeVersions)}");
if (!string.IsNullOrEmpty(platformVersion))
{
// We need to check if the detected platform version is in the form of a version spec or not.
if (SemanticVersionResolver.IsValidVersion(platformVersion))
{
// If it's a valid version, add a semver range specifier.
platformVersion = $"~{platformVersion}";
}
return(SemanticVersionResolver.GetMaxSatisfyingVersion(platformVersion, runtimeVersions) ?? runtimeVersions.LastOrDefault());
}
return(runtimeVersions.LastOrDefault());
}
return(DynamicRuntimeImageTag);
}
