cos

package
v0.0.0-...-4aaa17f Latest Latest
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 Go to latest Published: Apr 25, 2024 License: Apache-2.0 Imports: 18 Imported by: 1

Documentation

Overview

Package cos provides functionality to read and configure system configs that are specific to COS images.

Index

Constants

View Source 
const (
	// GPUExtension is the name of GPU extension.
	GPUExtension = "gpu"
)

Variables

This section is empty.

Functions

func AddCCWrapperToPath 

func AddCCWrapperToPath(toolchainDir, workDir, cc string) error

Creates a CC wrapper and adds it to the env PATH. Newer versions of LLVM have different -Wstrict-prototypes behavior that impacts the nvidia installer. The kernel always uses -Werror=strict-prototypes by default. This wrapper removes -Werror=strict-prototypes from the CC command line.

func CheckKernelModuleSigning 

func CheckKernelModuleSigning(kernelCmdline string) bool

CheckKernelModuleSigning checks whether kernel module signing related options present.

func ConfigureModuleSymvers 

func ConfigureModuleSymvers(kernelHeaderDir, kernelSrcDir string) error

ConfigureModuleSymvers copys Module.symvers file from kernel header dir to kernel source dir.

func ForceSymlinkLinker 

func ForceSymlinkLinker(symlinkPath string) error

func InstallCrossToolchain 

func InstallCrossToolchain(ctx context.Context, downloader ArtifactsDownloader, destDir string) error

InstallCrossToolchain installs COS toolchain and kernel headers to destination directory.

func InstallKernelSrcPkg 

func InstallKernelSrcPkg(ctx context.Context, downloader ArtifactsDownloader, destDir string) error

InstallKernelSrcPkg installs COS kernel source package to destination directory.

func PackageInfoExists 

func PackageInfoExists() bool

PackageInfoExists returns whether COS package information exists on the local OS.

func SetCompilationEnv 

func SetCompilationEnv(ctx context.Context, downloader ArtifactsDownloader) error

SetCompilationEnv sets compilation environment variables (e.g. CC, CXX) for third-party kernel module compilation. TODO(mikewu): pass environment variables to the *exec.Cmd that runs the installer.

Types

type ArtifactsDownloader 

type ArtifactsDownloader interface {
	DownloadKernelSrc(ctx context.Context, destDir string) error
	DownloadToolchainEnv(ctx context.Context, destDir string) error
	DownloadToolchain(ctx context.Context, destDir string) error
	DownloadKernelHeaders(dctx context.Context, estDir string) error
	DownloadArtifact(ctx context.Context, destDir, artifact string) error
	GetArtifact(ctx context.Context, artifact string) ([]byte, error)
	ArtifactExists(ctx context.Context, artifact string) (bool, error)
	ListArtifacts(ctx context.Context, prefix string) ([]string, error)
}

ArtifactsDownloader defines the interface to download COS artifacts.

type EnvReader 

type EnvReader struct {
	// contains filtered or unexported fields
}

EnvReader is to read system configurations of COS. TODO(mikewu): rename EnvReader to a better name.

func NewEnvReader 

func NewEnvReader(hostRootPath string) (reader *EnvReader, err error)

NewEnvReader returns an instance of EnvReader.

func (*EnvReader) Board 

func (c *EnvReader) Board() string

Board returns the COS board name. Retrieved from /etc/lsb-release.

func (*EnvReader) BuildNumber 

func (c *EnvReader) BuildNumber() string

BuildNumber returns COS build number.

func (*EnvReader) KernelCommit 

func (c *EnvReader) KernelCommit() string

KernelCommit returns commit hash of the COS kernel.

func (*EnvReader) KernelRelease 

func (c *EnvReader) KernelRelease() string

KernelRelease return COS kernel release, i.e. `uname -r`

func (*EnvReader) Milestone 

func (c *EnvReader) Milestone() string

Milestone returns COS milestone.

func (*EnvReader) OsRelease 

func (c *EnvReader) OsRelease() map[string]string

OsRelease returns configs of /etc/os-release as a map.

func (*EnvReader) ReleaseTrack 

func (c *EnvReader) ReleaseTrack() string

ReleaseTrack returns the COS release track.

func (*EnvReader) ToolchainPath 

func (c *EnvReader) ToolchainPath() string

ToolchainPath returns the toolchain path of the COS version. It may return an empty string if the COS version doesn't support the feature.

type ExtensionsDownloader 

type ExtensionsDownloader interface {
	ListExtensions() ([]string, error)
	ListExtensionArtifacts(extension string) ([]string, error)
	DownloadExtensionArtifact(ctx context.Context, destDir, extension, artifact string) error
	GetExtensionArtifact(ctx context.Context, extension, artifact string) ([]byte, error)
}

ExtensionsDownloader is the struct downloading COS extensions from GCS bucket.

type GCSDownloader 

type GCSDownloader struct {
	// contains filtered or unexported fields
}

GCSDownloader is the struct downloading COS artifacts from GCS bucket.

func NewGCSDownloader 

func NewGCSDownloader(gcsClient *storage.Client, e *EnvReader, bucket, prefix string) *GCSDownloader

NewGCSDownloader creates a GCSDownloader instance.

func (*GCSDownloader) ArtifactExists 

func (d *GCSDownloader) ArtifactExists(ctx context.Context, artifactPath string) (bool, error)

ArtifactExists check whether the artifactpath exists.

func (*GCSDownloader) DownloadArtifact 

func (d *GCSDownloader) DownloadArtifact(ctx context.Context, destDir, artifactPath string) error

DownloadArtifact downloads an artifact from the GCS prefix configured in GCSDownloader.

func (*GCSDownloader) DownloadArtifactFromURL 

func (d *GCSDownloader) DownloadArtifactFromURL(ctx context.Context, url string, destinationPath string) error

DownloadArtifactFromURL will download the artifact from url and save it to the destinationPath.

func (*GCSDownloader) DownloadExtensionArtifact 

func (d *GCSDownloader) DownloadExtensionArtifact(ctx context.Context, destDir, extension, artifact string) error

DownloadExtensionArtifact downloads an artifact of the given extension.

func (*GCSDownloader) DownloadKernelHeaders 

func (d *GCSDownloader) DownloadKernelHeaders(ctx context.Context, destDir string) error

DownloadKernelHeaders downloads COS kernel headers to destination directory.

func (*GCSDownloader) DownloadKernelSrc 

func (d *GCSDownloader) DownloadKernelSrc(ctx context.Context, destDir string) error

DownloadKernelSrc downloads COS kernel sources to destination directory.

func (*GCSDownloader) DownloadToolchain 

func (d *GCSDownloader) DownloadToolchain(ctx context.Context, destDir string) error

DownloadToolchain downloads toolchain package to destination directory.

func (*GCSDownloader) DownloadToolchainEnv 

func (d *GCSDownloader) DownloadToolchainEnv(ctx context.Context, destDir string) error

DownloadToolchainEnv downloads toolchain compilation environment variables to destination directory.

func (*GCSDownloader) GetArtifact 

func (d *GCSDownloader) GetArtifact(ctx context.Context, artifactPath string) ([]byte, error)

GetArtifact gets an artifact from GCS buckets and returns its content.

func (*GCSDownloader) GetExtensionArtifact 

func (d *GCSDownloader) GetExtensionArtifact(ctx context.Context, extension, artifact string) ([]byte, error)

GetExtensionArtifact reads the content of an artifact of the given extension.

func (*GCSDownloader) GetGCSClient 

func (d *GCSDownloader) GetGCSClient(ctx context.Context) (*storage.Client, error)

func (*GCSDownloader) ListArtifacts 

func (d *GCSDownloader) ListArtifacts(ctx context.Context, prefix string) ([]string, error)

ListArtifacts: this function lists the artifacts with `gcsDownloadPrefix/prefix` prefix.

func (*GCSDownloader) ListExtensionArtifacts 

func (d *GCSDownloader) ListExtensionArtifacts(extension string) ([]string, error)

ListExtensionArtifacts lists all artifacts of a given extension.

func (*GCSDownloader) ListExtensions 

func (d *GCSDownloader) ListExtensions() ([]string, error)

ListExtensions lists all supported extensions.

func (*GCSDownloader) ListGPUExtensionArtifacts 

func (d *GCSDownloader) ListGPUExtensionArtifacts() ([]string, error)

ListGPUExtensionArtifacts lists all artifacts of GPU extension.

type Package 

type Package struct {
	Category      string `json:"category"`
	Name          string `json:"name"`
	Version       string `json:"version"`
	EbuildVersion string `json:"ebuild_version"`
}

Package represents a COS package. For example, this schema is used in the cos-package-info.json file.

type PackageInfo 

type PackageInfo struct {
	InstalledPackages []Package `json:"installedPackages"`
	BuildTimePackages []Package `json:"buildTimePackages"`
}

PackageInfo contains information about the packages of a COS instance. For example, this schema is used in the cos-package-info.json file.

func GetPackageInfo 

func GetPackageInfo() (PackageInfo, error)

GetPackageInfo loads the package information from the local OS and returns it.

func GetPackageInfoFromFile 

func GetPackageInfoFromFile(filename string) (PackageInfo, error)

GetPackageInfoFromFile loads the package information from the specified file on the local OS and returns it.

Source Files

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