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// Copyright (c) 2018-2020, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package cli
import (
"errors"
"github.com/spf13/cobra"
"github.com/sylabs/singularity/v4/docs"
"github.com/sylabs/singularity/v4/internal/app/singularity"
"github.com/sylabs/singularity/v4/internal/pkg/buildcfg"
"github.com/sylabs/singularity/v4/pkg/cmdline"
"github.com/sylabs/singularity/v4/pkg/sylog"
)
// CapConfig contains flag variables for capability commands
type CapConfig struct {
CapUser string
CapGroup string
}
var capConfig = new(CapConfig)
// -u|--user
var capUserFlag = cmdline.Flag{
ID: "capUserFlag",
Value: &capConfig.CapUser,
DefaultValue: "",
Name: "user",
ShortHand: "u",
Usage: "manage capabilities for a user",
EnvKeys: []string{"CAP_USER"},
}
// -g|--group
var capGroupFlag = cmdline.Flag{
ID: "capGroupFlag",
Value: &capConfig.CapGroup,
DefaultValue: "",
Name: "group",
ShortHand: "g",
Usage: "manage capabilities for a group",
EnvKeys: []string{"CAP_GROUP"},
}
// CapabilityAvailCmd singularity capability avail
var CapabilityAvailCmd = &cobra.Command{
Args: cobra.RangeArgs(0, 1),
DisableFlagsInUseLine: true,
Run: func(cmd *cobra.Command, args []string) {
caps := ""
if len(args) > 0 {
caps = args[0]
}
c := singularity.CapAvailConfig{
Caps: caps,
Desc: len(args) == 0,
}
if err := singularity.CapabilityAvail(c); err != nil {
sylog.Fatalf("Unable to list available capabilities: %s", err)
}
},
Use: docs.CapabilityAvailUse,
Short: docs.CapabilityAvailShort,
Long: docs.CapabilityAvailLong,
Example: docs.CapabilityAvailExample,
}
// CapabilityAddCmd singularity capability add
var CapabilityAddCmd = &cobra.Command{
Args: cobra.ExactArgs(1),
DisableFlagsInUseLine: true,
Run: func(cmd *cobra.Command, args []string) {
c := singularity.CapManageConfig{
Caps: args[0],
User: capConfig.CapUser,
Group: capConfig.CapGroup,
}
if err := singularity.CapabilityAdd(buildcfg.CAPABILITY_FILE, c); err != nil {
sylog.Fatalf("Unable to add capabilities: %s", err)
}
},
Use: docs.CapabilityAddUse,
Short: docs.CapabilityAddShort,
Long: docs.CapabilityAddLong,
Example: docs.CapabilityAddExample,
}
// CapabilityDropCmd singularity capability drop
var CapabilityDropCmd = &cobra.Command{
Args: cobra.ExactArgs(1),
DisableFlagsInUseLine: true,
Run: func(cmd *cobra.Command, args []string) {
c := singularity.CapManageConfig{
Caps: args[0],
User: capConfig.CapUser,
Group: capConfig.CapGroup,
}
if err := singularity.CapabilityDrop(buildcfg.CAPABILITY_FILE, c); err != nil {
sylog.Fatalf("Unable to drop capabilities: %s", err)
}
},
Use: docs.CapabilityDropUse,
Short: docs.CapabilityDropShort,
Long: docs.CapabilityDropLong,
Example: docs.CapabilityDropExample,
}
// CapabilityListCmd singularity capability list
var CapabilityListCmd = &cobra.Command{
Args: cobra.RangeArgs(0, 1),
DisableFlagsInUseLine: true,
Run: func(cmd *cobra.Command, args []string) {
userGroup := ""
if len(args) == 1 {
userGroup = args[0]
}
c := singularity.CapListConfig{
User: userGroup,
Group: userGroup,
All: len(args) == 0,
}
if err := singularity.CapabilityList(buildcfg.CAPABILITY_FILE, c); err != nil {
sylog.Fatalf("Unable to list capabilities: %s", err)
}
},
Use: docs.CapabilityListUse,
Short: docs.CapabilityListShort,
Long: docs.CapabilityListLong,
Example: docs.CapabilityListExample,
}
// CapabilityCmd is the capability command
var CapabilityCmd = &cobra.Command{
RunE: func(cmd *cobra.Command, args []string) error {
return errors.New("Invalid command")
},
DisableFlagsInUseLine: true,
Aliases: []string{"caps"},
Use: docs.CapabilityUse,
Short: docs.CapabilityShort,
Long: docs.CapabilityLong,
Example: docs.CapabilityExample,
SilenceErrors: true,
}
func init() {
addCmdInit(func(cmdManager *cmdline.CommandManager) {
cmdManager.RegisterCmd(CapabilityCmd)
cmdManager.RegisterSubCmd(CapabilityCmd, CapabilityAddCmd)
cmdManager.RegisterSubCmd(CapabilityCmd, CapabilityDropCmd)
cmdManager.RegisterSubCmd(CapabilityCmd, CapabilityListCmd)
cmdManager.RegisterSubCmd(CapabilityCmd, CapabilityAvailCmd)
cmdManager.RegisterFlagForCmd(&capUserFlag, CapabilityAddCmd, CapabilityDropCmd)
cmdManager.RegisterFlagForCmd(&capGroupFlag, CapabilityAddCmd, CapabilityDropCmd)
})
}
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