Fix up handling of environment variables

The way docker works is if a user specifies a non `-e Name=Value`, IE
just a `-e Name`, then the environment variable Name from the clients
OS.ENV is used.

Also by default Docker containers run with the HOSTNAME environment set
to the HOSTNAME specified for the container.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

Closes: #21
Approved by: baude

1 files changed, 1 insertions, 31 deletions

diff --git a/cmd/kpod/create_cli.go b/cmd/kpod/create_cli.go
index eaad46591..91e984785 100644
--- a/cmd/kpod/create_cli.go
+++ b/cmd/kpod/create_cli.go
@@ -7,44 +7,14 @@ import (
 )
 
 func getAllLabels(labelFile, inputLabels []string) (map[string]string, error) {
-	var labelValues []string
 	labels := make(map[string]string)
-	labelValues, labelErr := readKVStrings(labelFile, inputLabels)
+	labelErr := readKVStrings(labels, labelFile, inputLabels)
 	if labelErr != nil {
 		return labels, errors.Wrapf(labelErr, "unable to process labels from --label and label-file")
 	}
-	// Process KEY=VALUE stringslice in string map for WithLabels func
-	if len(labelValues) > 0 {
-		for _, i := range labelValues {
-			spliti := strings.Split(i, "=")
-			if len(spliti) < 2 {
-				return labels, errors.Errorf("labels must be in KEY=VALUE format: %s is invalid", i)
-			}
-			labels[spliti[0]] = spliti[1]
-		}
-	}
 	return labels, nil
 }
 
-func getAllEnvironmentVariables(envFiles, envInput []string) ([]string, error) {
-	env, err := readKVStrings(envFiles, envInput)
-	if err != nil {
-		return []string{}, errors.Wrapf(err, "unable to process variables from --env and --env-file")
-	}
-	// Add default environment variables if nothing defined
-	if len(env) == 0 {
-		env = append(env, defaultEnvVariables...)
-	}
-	// Each environment variable must be in the K=V format
-	for _, i := range env {
-		spliti := strings.Split(i, "=")
-		if len(spliti) != 2 {
-			return env, errors.Errorf("environment variables must be in the format KEY=VALUE: %s is invalid", i)
-		}
-	}
-	return env, nil
-}
-
 func convertStringSliceToMap(strSlice []string, delimiter string) (map[string]string, error) {
 	sysctl := make(map[string]string)
 	for _, inputSysctl := range strSlice {