Merge pull request #1528 from baude/runlabel

Add container runlabel command

1 files changed, 57 insertions, 0 deletions

diff --git a/cmd/podman/shared/funcs.go b/cmd/podman/shared/funcs.go
new file mode 100644
index 000000000..5c401634c
--- /dev/null
+++ b/cmd/podman/shared/funcs.go
@@ -0,0 +1,57 @@
+package shared
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+// GenerateCommand takes a label (string) and converts it to an executable command
+func GenerateCommand(command, imageName, name string) []string {
+	var (
+		newCommand []string
+	)
+	if name == "" {
+		name = imageName
+	}
+	cmd := strings.Split(command, " ")
+	// Replace the first position of cmd with podman whether
+	// it is docker, /usr/bin/docker, or podman
+	newCommand = append(newCommand, "podman")
+	for _, arg := range cmd[1:] {
+		var newArg string
+		switch arg {
+		case "IMAGE":
+			newArg = imageName
+		case "IMAGE=IMAGE":
+			newArg = fmt.Sprintf("IMAGE=%s", imageName)
+		case "NAME":
+			newArg = name
+		case "NAME=NAME":
+			newArg = fmt.Sprintf("NAME=%s", name)
+		default:
+			newArg = arg
+		}
+		newCommand = append(newCommand, newArg)
+	}
+	return newCommand
+}
+
+// GenerateRunEnvironment merges the current environment variables with optional
+// environment variables provided by the user
+func GenerateRunEnvironment(name, imageName string, opts map[string]string) []string {
+	newEnv := os.Environ()
+	newEnv = append(newEnv, fmt.Sprintf("NAME=%s", name))
+	newEnv = append(newEnv, fmt.Sprintf("IMAGE=%s", imageName))
+
+	if opts["opt1"] != "" {
+		newEnv = append(newEnv, fmt.Sprintf("OPT1=%s", opts["opt1"]))
+	}
+	if opts["opt2"] != "" {
+		newEnv = append(newEnv, fmt.Sprintf("OPT2=%s", opts["opt2"]))
+	}
+	if opts["opt3"] != "" {
+		newEnv = append(newEnv, fmt.Sprintf("OPT3=%s", opts["opt3"]))
+	}
+	return newEnv
+}