-
Notifications
You must be signed in to change notification settings - Fork 247
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Co-authored-by: bri <[email protected]>
- Loading branch information
Showing
4 changed files
with
146 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| // Copyright 2019 Red Hat, 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. | ||
|
|
||
| // The OpenStack provider fetches configurations from the userdata available in | ||
| // both the config-drive as well as the network metadata service. Whichever | ||
| // responds first is the config that is used. | ||
| // NOTE: This provider is still EXPERIMENTAL. | ||
|
|
||
| package proxmoxve | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "os/exec" | ||
| "path/filepath" | ||
| "time" | ||
|
|
||
| "github.com/coreos/ignition/v2/config/v3_5_experimental/types" | ||
| "github.com/coreos/ignition/v2/internal/distro" | ||
| "github.com/coreos/ignition/v2/internal/log" | ||
| "github.com/coreos/ignition/v2/internal/platform" | ||
| "github.com/coreos/ignition/v2/internal/providers/util" | ||
| "github.com/coreos/ignition/v2/internal/resource" | ||
| ut "github.com/coreos/ignition/v2/internal/util" | ||
|
|
||
| "github.com/coreos/vcontext/report" | ||
| ) | ||
|
|
||
| const ( | ||
| cidataPath = "/user-data" | ||
| deviceLabel = "cidata" | ||
| ) | ||
|
|
||
| func init() { | ||
| platform.Register( | ||
| platform.Provider{ | ||
| Name: "proxmoxve", | ||
| Fetch: fetchConfig, | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| func fetchConfig(f *resource.Fetcher) (types.Config, report.Report, error) { | ||
| var data []byte | ||
| ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) | ||
|
|
||
| dispatch := func(name string, fn func() ([]byte, error)) { | ||
| raw, err := fn() | ||
| if err != nil { | ||
| switch err { | ||
| case context.Canceled: | ||
| case context.DeadlineExceeded: | ||
| f.Logger.Err("timed out while fetching config from %s", name) | ||
| default: | ||
| f.Logger.Err("failed to fetch config from %s: %v", name, err) | ||
| } | ||
| return | ||
| } | ||
|
|
||
| data = raw | ||
| cancel() | ||
| } | ||
|
|
||
| go dispatch( | ||
| "config drive (cidata)", func() ([]byte, error) { | ||
| return fetchConfigFromDevice(f.Logger, ctx, filepath.Join(distro.DiskByLabelDir(), deviceLabel)) | ||
| }, | ||
| ) | ||
|
|
||
| <-ctx.Done() | ||
| if ctx.Err() == context.DeadlineExceeded { | ||
| f.Logger.Info("cidata drive was not available in time. Continuing without a config...") | ||
| } | ||
|
|
||
| return util.ParseConfig(f.Logger, data) | ||
| } | ||
|
|
||
| func fileExists(path string) bool { | ||
| _, err := os.Stat(path) | ||
| return (err == nil) | ||
| } | ||
|
|
||
| func fetchConfigFromDevice(logger *log.Logger, ctx context.Context, path string) ([]byte, error) { | ||
| for !fileExists(path) { | ||
| logger.Debug("config drive (%q) not found. Waiting...", path) | ||
| select { | ||
| case <-time.After(time.Second): | ||
| case <-ctx.Done(): | ||
| return nil, ctx.Err() | ||
| } | ||
| } | ||
|
|
||
| logger.Debug("creating temporary mount point") | ||
| mnt, err := os.MkdirTemp("", "ignition-configdrive") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to create temp directory: %v", err) | ||
| } | ||
| defer os.Remove(mnt) | ||
|
|
||
| cmd := exec.Command(distro.MountCmd(), "-o", "ro", "-t", "auto", path, mnt) | ||
| if _, err := logger.LogCmd(cmd, "mounting config drive"); err != nil { | ||
| return nil, err | ||
| } | ||
| defer func() { | ||
| _ = logger.LogOp( | ||
| func() error { | ||
| return ut.UmountPath(mnt) | ||
| }, | ||
| "unmounting %q at %q", path, mnt, | ||
| ) | ||
| }() | ||
|
|
||
| if !fileExists(filepath.Join(mnt, cidataPath)) { | ||
| return nil, nil | ||
| } | ||
|
|
||
| contents, err := os.ReadFile(filepath.Join(mnt, cidataPath)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| header := []byte("#cloud-config\n") | ||
| if bytes.HasPrefix(contents, header) { | ||
| logger.Debug("config drive (%q) contains a cloud-config configuration, ignoring", path) | ||
| return nil, nil | ||
| } | ||
|
|
||
| return contents, nil | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters