aboutsummaryrefslogtreecommitdiffstats
path: root/src/k8splugin/internal
diff options
context:
space:
mode:
Diffstat (limited to 'src/k8splugin/internal')
-rw-r--r--src/k8splugin/internal/utils.go72
1 files changed, 72 insertions, 0 deletions
diff --git a/src/k8splugin/internal/utils.go b/src/k8splugin/internal/utils.go
index 5bac7a87..4b28b688 100644
--- a/src/k8splugin/internal/utils.go
+++ b/src/k8splugin/internal/utils.go
@@ -15,9 +15,12 @@ package utils
import (
"io/ioutil"
+ "k8splugin/internal/db"
"log"
"os"
+ "path/filepath"
"plugin"
+ "strings"
pkgerrors "github.com/pkg/errors"
"k8s.io/apimachinery/pkg/runtime"
@@ -61,3 +64,72 @@ var DecodeYAML = func(path string, into runtime.Object) (runtime.Object, error)
return obj, nil
}
+
+// CheckEnvVariables checks for required Environment variables
+func CheckEnvVariables() error {
+ envList := []string{"CSAR_DIR", "KUBE_CONFIG_DIR", "PLUGINS_DIR",
+ "DATABASE_TYPE", "DATABASE_IP", "OVN_CENTRAL_ADDRESS"}
+ for _, env := range envList {
+ if _, ok := os.LookupEnv(env); !ok {
+ return pkgerrors.New("environment variable " + env + " not set")
+ }
+ }
+
+ return nil
+}
+
+// CheckDatabaseConnection checks if the database is up and running and
+// plugin can talk to it
+func CheckDatabaseConnection() error {
+ err := db.CreateDBClient(os.Getenv("DATABASE_TYPE"))
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = db.DBconn.HealthCheck()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+ return nil
+}
+
+// LoadPlugins loads all the compiled .so plugins
+func LoadPlugins() error {
+ pluginsDir := os.Getenv("PLUGINS_DIR")
+ err := filepath.Walk(pluginsDir,
+ func(path string, info os.FileInfo, err error) error {
+ if strings.Contains(path, ".so") {
+ p, err := plugin.Open(path)
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+ LoadedPlugins[info.Name()[:len(info.Name())-3]] = p
+ }
+ return err
+ })
+ if err != nil {
+ return err
+ }
+
+ return nil
+}
+
+// CheckInitialSettings is used to check initial settings required to start api
+func CheckInitialSettings() error {
+ err := CheckEnvVariables()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = CheckDatabaseConnection()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = LoadPlugins()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ return nil
+}