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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// load default environment variables (from $VESPA_HOME/conf/vespa/default-env.txt)
// Author: arnej
package vespa
import (
"os"
"os/user"
"strconv"
"github.com/vespa-engine/vespa/client/go/internal/admin/envvars"
)
// Which user should vespa services run as? If current user is root,
// we want to change to some non-privileged user.
// Should be run after LoadDefaultEnv() which possibly loads VESPA_USER
// Which user should vespa services run as? If current user is root,
// we want to change to some non-privileged user.
// Should be run after LoadDefaultEnv() which possibly loads VESPA_USER
func FindVespaUser() string {
uName := os.Getenv(envvars.VESPA_USER)
if uName != "" {
// no check here, assume valid
return uName
}
if os.Getuid() == 0 {
u, err := user.Lookup("vespa")
if err == nil {
uName = u.Username
} else {
u, err = user.Lookup("nobody")
if err == nil {
uName = u.Username
}
}
}
if uName == "" {
u, err := user.Current()
if err == nil {
uName = u.Username
}
}
if uName != "" {
os.Setenv(envvars.VESPA_USER, uName)
}
return uName
}
// Which user/group should vespa services run as? If current user is root,
// we want to change to some non-privileged user.
// Should be run after LoadDefaultEnv() which possibly loads VESPA_USER
func FindVespaUidAndGid() (userId, groupId int) {
userId = -1
groupId = -1
uName := os.Getenv(envvars.VESPA_USER)
gName := os.Getenv(envvars.VESPA_GROUP)
if uName == "" {
uName = FindVespaUser()
}
if uName != "" {
u, err := user.Lookup(uName)
if err == nil {
userId, _ = strconv.Atoi(u.Uid)
if gName == "" {
groupId, _ = strconv.Atoi(u.Gid)
}
}
}
if gName != "" {
g, err := user.LookupGroup(gName)
if err == nil {
groupId, _ = strconv.Atoi(g.Gid)
}
}
return
}
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