-
Notifications
You must be signed in to change notification settings - Fork 2
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Send notifications events to Icinga Notifications daemon
Co-Authored-By: Eric Lippmann <eric.lippmann@icinga.com>
- Loading branch information
Showing
11 changed files
with
304 additions
and
15 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
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| package internal | ||
| package daemon | ||
|
|
||
| import ( | ||
| "github.com/icinga/icinga-go-library/database" | ||
|
|
||
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 +1,95 @@ | ||
| package notifications | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "encoding/json" | ||
| "github.com/icinga/icinga-kubernetes/internal" | ||
| "github.com/icinga/icinga-kubernetes/pkg/database" | ||
| "github.com/pkg/errors" | ||
| "io" | ||
| "k8s.io/klog/v2" | ||
| "net/http" | ||
| "net/url" | ||
| ) | ||
|
|
||
| // Notifiable can be implemented by all k8s types that want to submit notification events to Icinga Notifications. | ||
| type Notifiable interface { | ||
| // GetNotificationsEvent returns the event data of this type that will be transmitted to Icinga Notifications. | ||
| GetNotificationsEvent(baseUrl *url.URL) map[string]any | ||
| } | ||
|
|
||
| type Client struct { | ||
| db *database.Database | ||
| client http.Client | ||
| Config | ||
| } | ||
|
|
||
| func NewClient(db *database.Database, c Config) *Client { | ||
| return &Client{db: db, client: http.Client{}, Config: c} | ||
| } | ||
|
|
||
| func (c *Client) ProcessEvent(ctx context.Context, notifiable Notifiable) error { | ||
| var username, password string | ||
| if !IsAutoCreationEnabled(&c.Config) { | ||
| username = c.Config.Username | ||
| password = c.Config.Password | ||
| } else { | ||
| var err error | ||
| if username, password, err = retrieveCredentials(ctx, c.db); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| baseUrl, err := url.Parse(c.Config.KubernetesWebUrl) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "cannot parse Icinga for Kubernetes Web URL: %q", c.Config.KubernetesWebUrl) | ||
| } | ||
|
|
||
| body, err := json.Marshal(notifiable.GetNotificationsEvent(baseUrl)) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "cannot marshal notifications event data of type: %T", notifiable) | ||
| } | ||
|
|
||
| r, err := http.NewRequest(http.MethodPost, c.Config.Url+"/process-event", bytes.NewBuffer(body)) | ||
| if err != nil { | ||
| return errors.Wrap(err, "cannot create new notifications http request") | ||
| } | ||
|
|
||
| r.SetBasicAuth(username, password) | ||
| r.Header.Set("User-Agent", "icinga-kubernetes/"+internal.Version.Version) | ||
| r.Header.Add("Content-Type", "application/json") | ||
|
|
||
| res, err := c.client.Do(r) | ||
| if err != nil { | ||
| return errors.Wrap(err, "cannot send notifications event") | ||
| } | ||
| defer func() { | ||
| _, _ = io.Copy(io.Discard, res.Body) | ||
| _ = res.Body.Close() | ||
| }() | ||
|
|
||
| if res.StatusCode != http.StatusOK && res.StatusCode != http.StatusAlreadyReported { | ||
| return errors.Errorf("received unexpected http status code from Icinga Notifications: %d", res.StatusCode) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // Stream consumes the items from the given `entities` chan and triggers a notifications event for each of them. | ||
| func (c *Client) Stream(ctx context.Context, entities <-chan any) error { | ||
| for { | ||
| select { | ||
| case entity, more := <-entities: | ||
| if !more { | ||
| return nil | ||
| } | ||
|
|
||
| if err := c.ProcessEvent(ctx, entity.(Notifiable)); err != nil { | ||
| klog.Error(err) | ||
| } | ||
| case <-ctx.Done(): | ||
| return ctx.Err() | ||
| } | ||
| } | ||
| } |
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
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
Oops, something went wrong.