/
unix_env.go
49 lines (37 loc) · 1.08 KB
/
unix_env.go
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package processes
import (
"regexp"
"code.cloudfoundry.org/garden"
"code.cloudfoundry.org/guardian/rundmc/goci"
)
const DefaultRootPath = "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
const DefaultPath = "PATH=/usr/local/bin:/usr/bin:/bin"
func envWithDefaultPath(defaultPath string, env []string) []string {
pathRegexp := regexp.MustCompile("^PATH=.*$")
for _, envVar := range env {
if pathRegexp.MatchString(envVar) {
return env
}
}
return append(env, defaultPath)
}
func envWithUser(env []string, user string) []string {
userRegexp := regexp.MustCompile("^USER=.*$")
for _, envVar := range env {
if userRegexp.MatchString(envVar) {
return env
}
}
if user != "" {
return append(env, "USER="+user)
}
return append(env, "USER=root")
}
func UnixEnvFor(bndl goci.Bndl, spec garden.ProcessSpec, containerUID int) []string {
requestedEnv := append(bndl.Spec.Process.Env, spec.Env...)
defaultPath := DefaultPath
if containerUID == 0 {
defaultPath = DefaultRootPath
}
return envWithUser(envWithDefaultPath(defaultPath, requestedEnv), spec.User)
}