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updated Dockerfile to use latest Alpine image, optimized logging and updated documentation

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Jens-U. Mozdzen
2022-07-03 23:48:49 +02:00
parent ecfaaacf38
commit 6f180147ac
6 changed files with 64 additions and 56 deletions
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54
variomediaclient_api2019.go
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@@ -124,32 +124,32 @@ func (c *variomediaClient) UpdateTxtRecord(domain *string, name *string, value *
// the actual request is encoded in JSON
body, err := json.Marshal( reqData)
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", fmt.Errorf("cannot marshall to json: %v", err)
}
req, err := http.NewRequest("POST", variomediaLiveDnsBaseUrl, bytes.NewReader(body))
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", err
}
// contact Variomedia and check the results
status, respData, err := c.doRequest(req, true)
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", err
}
// have we hit the rate limit?
if status == http.StatusTooManyRequests {
klog.V(2).ErrorS( fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests), "UpdateTxtRecord() finished with error")
klog.ErrorS( nil, "UpdateTxtRecord() finished with errori 'too many requests' reported by Variomedia")
return "", fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests)
}
if status != http.StatusCreated && status != http.StatusOK && status != http.StatusAccepted {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
return "", fmt.Errorf("failed creating TXT record: %v", err)
klog.ErrorS(nil, "UpdateTxtRecord() finished with error reported by server", "status code", status)
return "", fmt.Errorf("failed creating TXT record: server reported status code %d", status)
}
// the request has succeeded - but is the job already finished?
@@ -157,7 +157,7 @@ func (c *variomediaClient) UpdateTxtRecord(domain *string, name *string, value *
var reply variomediaResponse
err = json.Unmarshal( respData, &reply)
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", fmt.Errorf("cannot unmarshall response to json: %v", err)
}
klog.V(5).InfoS( "HTTP finished", "JSON reply", reply)
@@ -174,33 +174,33 @@ func (c *variomediaClient) UpdateTxtRecord(domain *string, name *string, value *
// re-fetch the job status
req, err := http.NewRequest("GET", reply.Data.Links[ "queue-job"], nil)
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", err
}
// contact Variomedia and check the results
status, respData, err := c.doRequest(req, true)
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", err
}
// have we hit the rate limit?
if status == http.StatusTooManyRequests {
klog.V(2).ErrorS(fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests), "UpdateTxtRecord() finished with error")
klog.ErrorS( nil, "UpdateTxtRecord() finished with errori 'too many requests' reported by Variomedia")
return "", fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests)
}
if status != http.StatusCreated && status != http.StatusOK && status != http.StatusAccepted {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
return "", fmt.Errorf("failed creating TXT record: %v", err)
klog.ErrorS(nil, "UpdateTxtRecord() finished with error reported by server", "status code", status)
return "", fmt.Errorf("failed creating TXT record: server reported status code %d", status)
}
// the request has succeeded - but is the job already finished?
// check the response for an according '' element
err = json.Unmarshal( respData, &reply)
if err != nil {
klog.V(2).ErrorS(err, "UpdateTxtRecord() finished with error")
klog.ErrorS(err, "UpdateTxtRecord() finished with error")
return "", fmt.Errorf("cannot unmarshall response to json: %v", err)
}
klog.V(5).InfoS( "HTTP finished", "JSON reply", reply)
@@ -213,7 +213,7 @@ func (c *variomediaClient) UpdateTxtRecord(domain *string, name *string, value *
break;
}
if (loopcount == 0) {
klog.V(2).ErrorS(fmt.Errorf("DNS update job timed out with most recent status '%s'", reply.Data.Attributes[ "status"]), "UpdateTxtRecord() finished with error")
klog.ErrorS(nil, "UpdateTxtRecord() finished with error: job timed out", "most recent status", reply.Data.Attributes[ "status"])
return "", fmt.Errorf("DNS update job timed out with most recent status '%s'", reply.Data.Attributes[ "status"])
}
} // emulated do until
@@ -237,25 +237,25 @@ func (c *variomediaClient) DeleteTxtRecord(url string, ttl int) error {
// deleting a record happens by sending a HTTP "DELETE" request to the DNS entry's URL
req, err := http.NewRequest("DELETE", url, nil)
if err != nil {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(err, "DeleteTxtRecord() finished with error")
return err
}
// contact Variomedia and check the results
status, respData, err := c.doRequest(req, true)
if err != nil {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(err, "DeleteTxtRecord() finished with error")
return err
}
// have we hit the rate limit?
if status == http.StatusTooManyRequests {
klog.V(2).ErrorS(fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests), "DeleteTxtRecord() finished with error")
klog.ErrorS( nil, "DeleteTxtRecord() finished with errori 'too many requests' reported by Variomedia")
return fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests)
}
if status != http.StatusCreated && status != http.StatusOK && status != http.StatusAccepted {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(nil, "DeleteTxtRecord() finished with error reported by server", "status code", status)
return fmt.Errorf("failed deleting TXT record: %v", err)
}
@@ -264,7 +264,7 @@ func (c *variomediaClient) DeleteTxtRecord(url string, ttl int) error {
var reply variomediaResponse
err = json.Unmarshal( respData, &reply)
if err != nil {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(err, "DeleteTxtRecord() finished with error")
return fmt.Errorf("cannot unmarshall response to json: %v", err)
}
klog.V(5).InfoS( "HTTP finished", "JSON reply", reply)
@@ -281,25 +281,25 @@ func (c *variomediaClient) DeleteTxtRecord(url string, ttl int) error {
// re-fetch the job status
req, err := http.NewRequest("GET", reply.Data.Links[ "queue-job"], nil)
if err != nil {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(err, "DeleteTxtRecord() finished with error")
return err
}
// contact Variomedia and check the results
status, respData, err := c.doRequest(req, true)
if err != nil {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(err, "DeleteTxtRecord() finished with error")
return err
}
// have we hit the rate limit?
if status == http.StatusTooManyRequests {
klog.V(2).ErrorS(fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests), "DeleteTxtRecord() finished with error")
klog.ErrorS( nil, "DeleteTxtRecord() finished with errori 'too many requests' reported by Variomedia")
return fmt.Errorf("Variomedia rate limit reached (HTTP code %d)", http.StatusTooManyRequests)
}
if status != http.StatusCreated && status != http.StatusOK && status != http.StatusAccepted && status != http.StatusNotFound {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(nil, "DeleteTxtRecord() finished with error reported by server", "status code", status)
return fmt.Errorf("failed creating TXT record: %v", err)
}
@@ -307,7 +307,7 @@ func (c *variomediaClient) DeleteTxtRecord(url string, ttl int) error {
// check the response for an according '' element
err = json.Unmarshal( respData, &reply)
if err != nil {
klog.V(2).ErrorS(err, "DeleteTxtRecord() finished with error")
klog.ErrorS(err, "DeleteTxtRecord() finished with error")
return fmt.Errorf("cannot unmarshall response to json: %v", err)
}
klog.V(5).InfoS( "HTTP finished", "JSON reply", reply)
@@ -327,7 +327,7 @@ func (c *variomediaClient) DeleteTxtRecord(url string, ttl int) error {
break;
}
if (loopcount == 0) {
klog.V(2).ErrorS(fmt.Errorf("DNS update job timed out with most recent status '%s'", reply.Data.Attributes[ "status"]), "DeleteTxtRecord() finished with error")
klog.ErrorS(nil, "DeleteTxtRecord() finished with error: job timed out", "most recent status", reply.Data.Attributes[ "status"])
return fmt.Errorf("DNS update job timed out with most recent status '%s'", reply.Data.Attributes[ "status"])
}
} // emulated do until
@@ -363,7 +363,7 @@ func (c *variomediaClient) doRequest(req *http.Request, readResponseBody bool) (
res, err := client.Do(req)
if err != nil {
klog.V(2).ErrorS(err, "doRequest() finished with error")
klog.ErrorS(err, "doRequest() finished with error")
return 0, nil, err
}
@@ -373,7 +373,7 @@ func (c *variomediaClient) doRequest(req *http.Request, readResponseBody bool) (
if (res.StatusCode == http.StatusOK || res.StatusCode == http.StatusAccepted) && readResponseBody {
data, err := ioutil.ReadAll(res.Body)
if err != nil {
klog.V(2).ErrorS(err, "HTTP request finished with error")
klog.ErrorS(err, "HTTP request finished with error")
return 0, nil, err
}
klog.V(4).InfoS( "HTTP request succeeded", "status code", res.StatusCode)