Git-Mirrors/constellation
1
0
Fork 0
mirror of https://github.com/edgelesssys/constellation.git synced 2025-06-20 04:04:21 -04:00
Code Issues Projects Releases Packages Wiki Activity

kubernetes: verify Kubernetes components

Browse source
This commit is contained in:
Leonard Cohnen 2022-11-14 19:09:49 +01:00 • committed by 3u13r
parent 2c9ddbc6e7
commit 1e98b686b6
17 changed files with 439 additions and 229 deletions
Download patch file Download diff file Expand all files Collapse all files

55
bootstrapper/internal/kubernetes/k8sapi/k8sutil.go
View file

@ -13,7 +13,6 @@ import (
"encoding/pem"
"errors"
"fmt"
"io/fs"
"net"
"net/http"
"os"
@ -42,6 +41,10 @@ import (
const (
// kubeletStartTimeout is the maximum time given to the kubelet service to (re)start.
kubeletStartTimeout = 10 * time.Minute
// crdTimeout is the maximum time given to the CRDs to be created.
crdTimeout = 30 * time.Second
executablePerm = 0o544
kubeletServicePath = "/usr/lib/systemd/system/kubelet.service"
)
// Client provides the functions to talk to the k8s API.
@ -57,7 +60,7 @@ type Client interface {
type installer interface {
Install(
ctx context.Context, sourceURL string, destinations []string, perm fs.FileMode, extract bool,
ctx context.Context, kubernetesComponent versions.ComponentVersion,
) error
}
@ -75,34 +78,26 @@ func NewKubernetesUtil() *KubernetesUtil {
}
}
// InstallComponentsFromCLI installs the kubernetes components passed from the CLI.
func (k *KubernetesUtil) InstallComponentsFromCLI(ctx context.Context, kubernetesComponents versions.ComponentVersions) error {
for _, component := range kubernetesComponents {
if err := k.inst.Install(ctx, component); err != nil {
return fmt.Errorf("installing kubernetes component from URL %s: %w", component.URL, err)
}
}
return enableSystemdUnit(ctx, kubeletServicePath)
}
// InstallComponents installs kubernetes components in the version specified.
// TODO(AB#2543,3u13r): Remove this function once the JoinService is extended.
func (k *KubernetesUtil) InstallComponents(ctx context.Context, version versions.ValidK8sVersion) error {
versionConf := versions.VersionConfigs[version]
if err := k.inst.Install(
ctx, versionConf.CNIPlugins.URL, []string{cniPluginsDir}, executablePerm, true,
); err != nil {
return fmt.Errorf("installing cni plugins: %w", err)
}
if err := k.inst.Install(
ctx, versionConf.Crictl.URL, []string{binDir}, executablePerm, true,
); err != nil {
return fmt.Errorf("installing crictl: %w", err)
}
if err := k.inst.Install(
ctx, versionConf.Kubelet.URL, []string{kubeletPath}, executablePerm, false,
); err != nil {
return fmt.Errorf("installing kubelet: %w", err)
}
if err := k.inst.Install(
ctx, versionConf.Kubeadm.URL, []string{kubeadmPath}, executablePerm, false,
); err != nil {
return fmt.Errorf("installing kubeadm: %w", err)
}
if err := k.inst.Install(
ctx, versionConf.Kubectl.URL, []string{constants.KubectlPath}, executablePerm, false,
); err != nil {
return fmt.Errorf("installing kubectl: %w", err)
for _, component := range versionConf.KubernetesComponents {
if err := k.inst.Install(ctx, component); err != nil {
return fmt.Errorf("installing kubernetes component from URL %s: %w", component.URL, err)
}
}
return enableSystemdUnit(ctx, kubeletServicePath)
@ -132,7 +127,7 @@ func (k *KubernetesUtil) InitCluster(
// preflight
log.Infof("Running kubeadm preflight checks")
cmd := exec.CommandContext(ctx, kubeadmPath, "init", "phase", "preflight", "-v=5", "--config", initConfigFile.Name())
cmd := exec.CommandContext(ctx, constants.KubeadmPath, "init", "phase", "preflight", "-v=5", "--config", initConfigFile.Name())
out, err := cmd.CombinedOutput()
if err != nil {
var exitErr *exec.ExitError
@ -144,7 +139,7 @@ func (k *KubernetesUtil) InitCluster(
// create CA certs
log.Infof("Creating Kubernetes control-plane certificates and keys")
cmd = exec.CommandContext(ctx, kubeadmPath, "init", "phase", "certs", "all", "-v=5", "--config", initConfigFile.Name())
cmd = exec.CommandContext(ctx, constants.KubeadmPath, "init", "phase", "certs", "all", "-v=5", "--config", initConfigFile.Name())
out, err = cmd.CombinedOutput()
if err != nil {
var exitErr *exec.ExitError
@ -172,7 +167,7 @@ func (k *KubernetesUtil) InitCluster(
skipPhases += ",addon/kube-proxy"
}
cmd = exec.CommandContext(ctx, kubeadmPath, "init", "-v=5", skipPhases, "--config", initConfigFile.Name())
cmd = exec.CommandContext(ctx, constants.KubeadmPath, "init", "-v=5", skipPhases, "--config", initConfigFile.Name())
out, err = cmd.CombinedOutput()
if err != nil {
var exitErr *exec.ExitError
@ -362,7 +357,7 @@ func (k *KubernetesUtil) JoinCluster(ctx context.Context, joinConfig []byte, pee
}
// run `kubeadm join` to join a worker node to an existing Kubernetes cluster
cmd := exec.CommandContext(ctx, kubeadmPath, "join", "-v=5", "--config", joinConfigFile.Name())
cmd := exec.CommandContext(ctx, constants.KubeadmPath, "join", "-v=5", "--config", joinConfigFile.Name())
out, err := cmd.CombinedOutput()
if err != nil {
var exitErr *exec.ExitError