mirror of
https://github.com/podman-container-tools/podman.git
synced 2026-11-03 09:37:34 +00:00
4f825f2e07
Execute the command as described by a container image. The value of the label is processed into a command by: 1. Ensuring the first argument of the command is podman. 2. Substituting any variables with those defined by the environment or otherwise. If no label exists in the container image, nothing is done. podman container runlabel LABEL IMAGE extra_args Signed-off-by: baude <bbaude@redhat.com>
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package shared
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import (
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"fmt"
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"os"
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"strings"
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)
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// GenerateCommand takes a label (string) and converts it to an executable command
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func GenerateCommand(command, imageName, name string) []string {
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var (
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newCommand []string
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)
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if name == "" {
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name = imageName
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}
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cmd := strings.Split(command, " ")
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// Replace the first position of cmd with podman whether
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// it is docker, /usr/bin/docker, or podman
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newCommand = append(newCommand, "podman")
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for _, arg := range cmd[1:] {
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var newArg string
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switch arg {
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case "IMAGE":
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newArg = imageName
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case "IMAGE=IMAGE":
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newArg = fmt.Sprintf("IMAGE=%s", imageName)
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case "NAME":
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newArg = name
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case "NAME=NAME":
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newArg = fmt.Sprintf("NAME=%s", name)
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default:
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newArg = arg
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}
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newCommand = append(newCommand, newArg)
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}
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return newCommand
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}
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// GenerateRunEnvironment merges the current environment variables with optional
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// environment variables provided by the user
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func GenerateRunEnvironment(name, imageName string, opts map[string]string) []string {
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newEnv := os.Environ()
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newEnv = append(newEnv, fmt.Sprintf("NAME=%s", name))
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newEnv = append(newEnv, fmt.Sprintf("IMAGE=%s", imageName))
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if opts["opt1"] != "" {
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newEnv = append(newEnv, fmt.Sprintf("OPT1=%s", opts["opt1"]))
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}
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if opts["opt2"] != "" {
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newEnv = append(newEnv, fmt.Sprintf("OPT2=%s", opts["opt2"]))
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}
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if opts["opt3"] != "" {
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newEnv = append(newEnv, fmt.Sprintf("OPT3=%s", opts["opt3"]))
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}
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return newEnv
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}
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