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k3s/tests/unit.go

68 lines
1.8 KiB

package tests
import (
"net"
"os"
"path/filepath"
"github.com/k3s-io/k3s/pkg/daemons/config"
"github.com/k3s-io/k3s/pkg/daemons/control/deps"
)
// GenerateDataDir creates a temporary directory at "/tmp/k3s/<RANDOM_STRING>/".
// The latest directory created with this function is soft linked to "/tmp/k3s/latest/".
// This allows tests to replicate the "/var/lib/rancher/k3s" directory structure.
func GenerateDataDir(cnf *config.Control) error {
if err := os.MkdirAll(cnf.DataDir, 0700); err != nil {
return err
}
testDir, err := os.MkdirTemp(cnf.DataDir, "*")
if err != nil {
return err
}
// Remove old symlink and add new one
os.Remove(filepath.Join(cnf.DataDir, "latest"))
if err = os.Symlink(testDir, filepath.Join(cnf.DataDir, "latest")); err != nil {
return err
}
cnf.DataDir = testDir
cnf.DataDir, err = filepath.Abs(cnf.DataDir)
if err != nil {
return err
}
return nil
}
// CleanupDataDir removes the associated "/tmp/k3s/<RANDOM_STRING>"
// directory along with the 'latest' symlink that points at it.
func CleanupDataDir(cnf *config.Control) {
os.Remove(filepath.Join(cnf.DataDir, "..", "latest"))
os.RemoveAll(cnf.DataDir)
}
// GenerateRuntime creates a temporary data dir and configures
// config.ControlRuntime with all the appropriate certificate keys.
func GenerateRuntime(cnf *config.Control) error {
cnf.Runtime = &config.ControlRuntime{}
if err := GenerateDataDir(cnf); err != nil {
return err
}
os.MkdirAll(filepath.Join(cnf.DataDir, "tls"), 0700)
os.MkdirAll(filepath.Join(cnf.DataDir, "cred"), 0700)
deps.CreateRuntimeCertFiles(cnf)
return deps.GenServerDeps(cnf)
}
func ClusterIPNet() *net.IPNet {
_, clusterIPNet, _ := net.ParseCIDR("10.42.0.0/16")
return clusterIPNet
}
func ServiceIPNet() *net.IPNet {
_, serviceIPNet, _ := net.ParseCIDR("10.43.0.0/16")
return serviceIPNet
}