helper

Documentation

Index

• Constants
• func CleanupTemplateOutput(output string) (string, error)
• func CloudProviderFlags(cpName string, external bool) string
• func ContainerRuntimeHealthCheckSystemdUnit(log *zap.SugaredLogger, containerRuntime string) (string, error)
• func DockerConfig(insecureRegistries, registryMirrors []string, logMaxFiles string, ...) (string, error)
• func DownloadBinariesScript(log *zap.SugaredLogger, kubeletVersion string, downloadKubelet bool) (string, error)
• func GetCACert(kubeconfig *clientcmdapi.Config) (string, error)
• func JournalDConfig() string
• func KernelSettings() string
• func KubeletFlags(log *zap.SugaredLogger, version, cloudProvider, hostname string, ...) (string, error)
• func KubeletHealthCheckSystemdUnit() string
• func KubeletSystemdUnit(log *zap.SugaredLogger, ...) (string, error)
• func LoadKernelModulesScript() string
• func ProxyEnvironment(proxy, noProxy string) string
• func SSHConfigAddendum() string
• func SafeDownloadBinariesScript(log *zap.SugaredLogger, kubeVersion string) (string, error)
• func SetupNodeIPEnvScript(ipFamily util.IPFamily) string
• func StringifyKubeconfig(kubeconfig *clientcmdapi.Config) (string, error)
• func TxtFuncMap(log *zap.SugaredLogger) template.FuncMap

Constants

const (
	DefaultDockerContainerLogMaxFiles = "5"
	DefaultDockerContainerLogMaxSize  = "100m"
)

Functions

func CleanupTemplateOutput

func CleanupTemplateOutput(output string) (string, error)

CleanupTemplateOutput postprocesses the output of the template processing. Those may exist due to the working of template functions like those of the sprig package or template condition.

func CloudProviderFlags

func CloudProviderFlags(cpName string, external bool) string

CloudProviderFlags returns --cloud-provider and --cloud-config flags.

func ContainerRuntimeHealthCheckSystemdUnit

func ContainerRuntimeHealthCheckSystemdUnit(log *zap.SugaredLogger, containerRuntime string) (string, error)

ContainerRuntimeHealthCheckSystemdUnit container-runtime health checking systemd unit.

func DockerConfig

func DockerConfig(insecureRegistries, registryMirrors []string, logMaxFiles string, logMaxSize string) (string, error)

DockerConfig returns the docker daemon.json.

func DownloadBinariesScript

func DownloadBinariesScript(log *zap.SugaredLogger, kubeletVersion string, downloadKubelet bool) (string, error)

DownloadBinariesScript returns the script which is responsible to download all required binaries.

func GetCACert

func GetCACert(kubeconfig *clientcmdapi.Config) (string, error)

func JournalDConfig

func JournalDConfig() string

JournalDConfig returns the journal config preferable on every node.

func KernelSettings

func KernelSettings() string

KernelSettings returns the list of kernel settings required for a kubernetes worker node inotify changes according to https://github.com/kubernetes/kubernetes/issues/10421 - better than letting the kubelet die.

func KubeletFlags

func KubeletFlags(log *zap.SugaredLogger, version, cloudProvider, hostname string, dnsIPs []net.IP, external bool, ipFamily util.IPFamily, pauseImage string, initialTaints []corev1.Taint, extraKubeletFlags []string) (string, error)

KubeletFlags returns the kubelet flags. --node-ip and --cloud-provider kubelet flags conflict in the dualstack setup. In general, it is not expected to need to use --node-ip with external CCMs, as the cloud provider is expected to know the correct IPs to return. For details read kubernetes/sig-networking channel discussion https://kubernetes.slack.com/archives/C09QYUH5W/p1654003958331739

func KubeletHealthCheckSystemdUnit

func KubeletHealthCheckSystemdUnit() string

KubeletHealthCheckSystemdUnit kubelet health checking systemd unit.

func KubeletSystemdUnit

func KubeletSystemdUnit(log *zap.SugaredLogger, containerRuntime, kubeletVersion, cloudProvider, hostname string, dnsIPs []net.IP, external bool, ipFamily util.IPFamily, pauseImage string, initialTaints []corev1.Taint, extraKubeletFlags []string, disableSwap bool) (string, error)

KubeletSystemdUnit returns the systemd unit for the kubelet.

func LoadKernelModulesScript

func LoadKernelModulesScript() string

LoadKernelModules returns a script which is responsible for loading all required kernel modules The nf_conntrack_ipv4 module get removed in newer kernel versions.

func ProxyEnvironment

func ProxyEnvironment(proxy, noProxy string) string

func SSHConfigAddendum

func SSHConfigAddendum() string

func SafeDownloadBinariesScript

func SafeDownloadBinariesScript(log *zap.SugaredLogger, kubeVersion string) (string, error)

SafeDownloadBinariesScript returns the script which is responsible to download and check checksums of all required binaries.

func SetupNodeIPEnvScript

func SetupNodeIPEnvScript(ipFamily util.IPFamily) string

func StringifyKubeconfig

func StringifyKubeconfig(kubeconfig *clientcmdapi.Config) (string, error)

StringifyKubeconfig marshals a kubeconfig to its text form.

func TxtFuncMap

func TxtFuncMap(log *zap.SugaredLogger) template.FuncMap

TxtFuncMap returns an aggregated template function map. Currently (custom functions + sprig).