public async Task TestScratchAsync()
{
ImageReference targetImageReference =
ImageReference.Of("localhost:5002", "fibdotnet-core", "basic-scratch");
await FibContainerBuilder.FromScratch()
.ContainerizeAsync(
Containerizer.To(
RegistryImage.Named(targetImageReference)
.AddCredentialRetriever(
() => Maybe.Of(Credential.From("username", "password"))))
.SetAllowInsecureRegistries(true)).ConfigureAwait(false);
// Check that resulting image has no layers
localRegistry.Pull(targetImageReference.ToString());
string inspectOutput = new Command("docker", "inspect", targetImageReference.ToString()).Run();
Assert.That(inspectOutput, Does.Not.Contain("\"Layers\": ["), "docker inspect output contained layers: " + inspectOutput);
}
/**
* Tags the image referenced by {@code originalImageReference} with a new image reference {@code
* newImageReference}.
*
* @param originalImageReference the existing image reference on the Docker daemon
* @param newImageReference the new image reference
* @see <a
* href="https://docs.docker.com/engine/reference/commandline/tag/">https://docs.docker.com/engine/reference/commandline/tag/</a>
* @throws InterruptedException if the 'docker tag' process is interrupted.
* @throws IOException if an I/O exception occurs or {@code docker tag} failed
*/
public async Task TagAsync(IImageReference originalImageReference, ImageReference newImageReference)
{
originalImageReference = originalImageReference ?? throw new ArgumentNullException(nameof(originalImageReference));
newImageReference = newImageReference ?? throw new ArgumentNullException(nameof(newImageReference));
// Runs 'docker tag'.
IProcess dockerProcess =
Docker("tag", originalImageReference.ToString(), newImageReference.ToString());
if (dockerProcess.WaitFor() != 0)
{
using (StreamReader stderr =
new StreamReader(dockerProcess.GetErrorStream(), Encoding.UTF8))
{
string errorMessage = await stderr.ReadToEndAsync().ConfigureAwait(false);
throw new IOException(
"'docker tag' command failed with error: " + errorMessage);
}
}
}
public async Task TestBasic_HelloWorldAsync()
{
ImageReference targetImageReference =
ImageReference.Of("localhost:5002", "fibdotnet-core", "basic-helloworld");
FibContainer fibContainer =
await FibContainerBuilder.From("busybox")
.SetEntrypoint("echo", "Hello World")
.ContainerizeAsync(
Containerizer.To(
RegistryImage.Named(targetImageReference)
.AddCredentialRetriever(
() => Maybe.Of(Credential.From("username", "password"))))
.SetAllowInsecureRegistries(true)
.AddEventHandler <IFibEvent>(e => TestContext.Out.WriteLine(e))).ConfigureAwait(false);
Assert.AreEqual("Hello World\n", PullAndRunBuiltImage(targetImageReference.ToString()));
Assert.AreEqual(
"Hello World\n",
PullAndRunBuiltImage(
targetImageReference.WithTag(fibContainer.GetDigest().ToString()).ToString()));
}
public async Task TestOfflineAsync()
{
SystemPath cacheDirectory = cacheFolder.GetRoot().ToPath();
ImageReference targetImageReferenceOnline =
ImageReference.Of("localhost:5001", "fibdotnet-core", "basic-online");
ImageReference targetImageReferenceOffline =
ImageReference.Of("localhost:5001", "fibdotnet-core", "basic-offline");
FibContainerBuilder fibContainerBuilder =
FibContainerBuilder.From("localhost:5001/busybox").SetEntrypoint("echo", "Hello World");
// Should fail since Fib can't build to registry offline
try
{
await fibContainerBuilder.ContainerizeAsync(
Containerizer.To(RegistryImage.Named(targetImageReferenceOffline)).SetOfflineMode(true)).ConfigureAwait(false);
Assert.Fail();
}
catch (InvalidOperationException ex)
{
Assert.AreEqual("Cannot build to a container registry in offline mode", ex.Message);
}
// Should fail since Fib hasn't cached the base image yet
try
{
await fibContainerBuilder.ContainerizeAsync(
Containerizer.To(DockerDaemonImage.Named(targetImageReferenceOffline))
.SetBaseImageLayersCache(cacheDirectory)
.SetOfflineMode(true)).ConfigureAwait(false);
Assert.Fail();
}
catch (IOException ex)
{
Assert.AreEqual(
"Cannot run Fib in offline mode; localhost:5001/busybox not found in local Fib cache",
ex.Message);
}
using (LocalRegistry tempRegistry = new LocalRegistry(5001))
{
await tempRegistry.StartAsync().ConfigureAwait(false);
tempRegistry.PullAndPushToLocal("busybox", "busybox");
// Run online to cache the base image
await fibContainerBuilder.ContainerizeAsync(
Containerizer.To(DockerDaemonImage.Named(targetImageReferenceOnline))
.SetBaseImageLayersCache(cacheDirectory)
.SetAllowInsecureRegistries(true)).ConfigureAwait(false);
}
// Run again in offline mode, should succeed this time
await fibContainerBuilder.ContainerizeAsync(
Containerizer.To(DockerDaemonImage.Named(targetImageReferenceOffline))
.SetBaseImageLayersCache(cacheDirectory)
.SetOfflineMode(true)).ConfigureAwait(false);
// Verify output
Assert.AreEqual(
"Hello World\n",
new Command("docker", "run", "--rm", targetImageReferenceOffline.ToString()).Run());
}