/
unit.go
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/
unit.go
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// Copyright 2016 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"fmt"
"path"
"strings"
"github.com/coreos/go-systemd/unit"
"github.com/coreos/ignition/config/shared/errors"
"github.com/coreos/ignition/config/shared/validations"
"github.com/coreos/ignition/config/validate/report"
)
type SystemdUnit struct {
Name SystemdUnitName `json:"name,omitempty"`
Enable bool `json:"enable,omitempty"`
Mask bool `json:"mask,omitempty"`
Contents string `json:"contents,omitempty"`
DropIns []SystemdUnitDropIn `json:"dropins,omitempty"`
}
func (u SystemdUnit) Validate() report.Report {
r := report.Report{}
opts, err := validateUnitContent(u.Contents)
if err != nil {
return report.ReportFromError(err, report.EntryError)
}
r.Merge(validations.ValidateInstallSection(string(u.Name), u.Enable, u.Contents == "", opts))
return r
}
type SystemdUnitDropIn struct {
Name SystemdUnitDropInName `json:"name,omitempty"`
Contents string `json:"contents,omitempty"`
}
func (u SystemdUnitDropIn) Validate() report.Report {
if _, err := validateUnitContent(u.Contents); err != nil {
return report.ReportFromError(err, report.EntryError)
}
return report.Report{}
}
type SystemdUnitName string
func (n SystemdUnitName) Validate() report.Report {
switch path.Ext(string(n)) {
case ".service", ".socket", ".device", ".mount", ".automount", ".swap", ".target", ".path", ".timer", ".snapshot", ".slice", ".scope":
return report.Report{}
default:
return report.ReportFromError(errors.ErrInvalidSystemdExt, report.EntryError)
}
}
type SystemdUnitDropInName string
func (n SystemdUnitDropInName) Validate() report.Report {
switch path.Ext(string(n)) {
case ".conf":
return report.Report{}
default:
return report.ReportFromError(errors.ErrInvalidSystemdDropinExt, report.EntryError)
}
}
type NetworkdUnit struct {
Name NetworkdUnitName `json:"name,omitempty"`
Contents string `json:"contents,omitempty"`
}
func (u NetworkdUnit) Validate() report.Report {
if _, err := validateUnitContent(u.Contents); err != nil {
return report.ReportFromError(err, report.EntryError)
}
return report.Report{}
}
type NetworkdUnitName string
func (n NetworkdUnitName) Validate() report.Report {
switch path.Ext(string(n)) {
case ".link", ".netdev", ".network":
return report.Report{}
default:
return report.ReportFromError(errors.ErrInvalidNetworkdExt, report.EntryError)
}
}
func validateUnitContent(content string) ([]*unit.UnitOption, error) {
c := strings.NewReader(content)
opts, err := unit.Deserialize(c)
if err != nil {
return nil, fmt.Errorf("invalid unit content: %s", err)
}
return opts, nil
}