public static CreateContainerParametersBuilder CreateFromContainer(Container container)
{
var imageId = new DockerImageId(container.ImageName, container.ImageVersion);
var builder = new CreateContainerParametersBuilder(imageId, container.Name);
foreach (var(name, value) in DockerLabelHelper.CreateForContainer(container))
{
builder.AddLabel(name, value);
}
foreach (var binding in container.ServerPorts)
{
builder.AddPortBinding(binding.ContainerPort, binding.HostPort);
}
foreach (var volume in container.Volumes)
{
builder.AddVolumeMount(
volume.DockerName,
volume.ContainerMountPoint,
DockerLabelHelper.CreateForVolume(container, volume)
);
}
foreach (var argument in container.Arguments)
{
builder.AddEnvironmentVariable(argument);
}
return(builder);
}
private async Task <bool> DownloadImageAsync(DockerImageId imageId, DockerClient dockerClient)
{
using var loggerScope = _logger.BeginScope($"Download docker image {imageId.FullName}");
try
{
if (await CheckImageExistsAsync(imageId, dockerClient))
{
return(true);
}
var parameters = new ImagesCreateParameters
{
FromImage = imageId.Name,
Tag = imageId.Tag
};
await dockerClient.Images.CreateImageAsync(parameters, null, new Progress <JSONMessage>());
_logger.LogInformation("Image downloaded");
return(true);
}
catch (Exception exception)
{
_logger.LogError(exception, "Failed to download image");
return(false);
}
}
public void TestThatMatchesMethodCorrectlyMatchesId()
{
var fileSystem = new MockFileSystem(new Dictionary <string, MockFileData>
{
[@"/temp/some-directory"] = new MockDirectoryData()
});
var source = new InternalDockerSource(fileSystem.DirectoryInfo.FromDirectoryName("/temp/some-directory"), new ImageConfig
{
Name = "Steve",
Versions = new[]
{
new ImageVersion
{
Tag = "1.0"
},
new ImageVersion
{
Tag = "2.0"
}
}
});
var steveOneId = new DockerImageId("Steve", "1.0");
var steveTwoId = new DockerImageId("Steve", "2.0");
var steveThreeId = new DockerImageId("Steve", "3.0");
Assert.IsTrue(source.Matches(steveOneId));
Assert.IsTrue(source.Matches(steveTwoId));
Assert.IsFalse(source.Matches(steveThreeId));
}
private InternalDockerSource Find(DockerImageId imageId)
{
try
{
return(_internalSources.FirstOrDefault(s => s.Matches(imageId)));
}
catch
{
return(null);
}
}
private async Task <bool> PrepareImageAsync(DockerImageId imageId, DockerClient dockerClient)
{
using var loggerScope = _logger.BeginScope($"Preparing image {imageId.FullName}");
if (_imageSourceManager.IsInternalImage(imageId))
{
var source = _imageSourceManager.Get(imageId);
return(await BuildImageSourceAsync(imageId, source.Directory, dockerClient));
}
return(await DownloadImageAsync(imageId, dockerClient));
}
private async Task <bool> BuildImageSourceAsync(
DockerImageId imageId,
IDirectoryInfo sourceDirectory,
DockerClient dockerClient
)
{
using var loggerScope = _logger.BeginScope($"Building docker image from {sourceDirectory.FullName}");
var response = new LoggedResponse(_logger);
try
{
if (await CheckImageExistsAsync(imageId, dockerClient))
{
return(true);
}
_logger.LogInformation("Creating tar stream from directory");
var builder = new TarBuilder();
var sourceStream = await builder.BuildFromDirectory(sourceDirectory);
_logger.LogInformation("Creating Docker image from tar stream");
using var dockerResponseStream = await dockerClient.Images.BuildImageFromDockerfileAsync(sourceStream, new ImageBuildParameters
{
Tags = new List <string>
{
imageId.FullName
},
Labels = DockerLabelHelper.CreateBaseLabels()
});
if (!await DockerBuildHelper.ValidateBuildAsync(dockerResponseStream, _logger))
{
throw new Exception($"Docker build returned an error, lol soz (TODO: maybe log the error, Paul?)");
}
return(true);
}
catch (Exception exception)
{
_logger.LogError(exception, "Unable to build Docker image");
}
return(false);
}
private async Task <bool> CheckImageExistsAsync(DockerImageId imageId, DockerClient dockerClient)
{
using var loggerScope = _logger.BeginScope($"Checking Docker image {imageId.FullName} exists locally");
try
{
await dockerClient.Images.InspectImageAsync(imageId.FullName);
_logger.LogInformation("The image exists already");
return(true);
}
catch
{
_logger.LogInformation("The image does not exist");
return(false);
}
}
public static CreateContainerParametersBuilder CreateStorageServer(Server server)
{
var imageId = new DockerImageId("triceratops_volumeinspector", "1.0");
var containerName = NameHelper.SanitiseHostname($"Triceratops.StorageServer.{server.Name}");
var builder = new CreateContainerParametersBuilder(imageId, containerName)
.AddLabels(DockerLabelHelper.CreateForTemporaryContainer());
foreach (var volume in ServerVolumeIdentifier.CreateForServer(server))
{
builder.AddVolumeMount(
volume.VolumeName,
volume.CreateMountDestination(Constants.VolumeInspectorVolumesPath),
new Dictionary <string, string>(0)
);
}
;
return(builder);
}
public CreateContainerParametersBuilder(DockerImageId imageId, string containerName)
{
ImageId = imageId;
ContainerName = containerName;
NetworkName = DockerServiceConstants.TriceratopsNetwork;
}
public bool IsInternalImage(DockerImageId imageId)
{
return(Find(imageId) != null);
}
public InternalDockerSource Get(DockerImageId imageId)
{
return(Find(imageId));
}
public bool Matches(DockerImageId imageId)
{
return(Config.Name == imageId.Name && Config.Versions.Any(v => v.Tag == imageId.Tag));
}