Watcher POST URL Error

Elastic Stack Kibana
1

Hi,

Setup: ES/Kibana 7.5.2

We are trying to configure automatic PDF report generation and sent to the email on a schedule.
The dashboard pdf works fine if we simply download it using Generate PDF option.
However when using the POST Url for the Dashboard in Watcher it throws the error

Here is the configuration of the Watch.

{
  "trigger": {
    "schedule": {
      "interval": "1m"
    }
  },
  "input": {
    "none": {}
  },
  "condition": {
    "always": {}
  },
  "actions": {
    "email_admin": {
      "email": {
        "profile": "standard",
        "attachments": {
          "error_report.pdf": {
            "reporting": {
              "url": "http://NGINXIP/otwater/api/reporting/generate/printablePdf?jobParams=(browserTimezone:Asia%2FDubai,layout:(dimensions:(height:300,width:2066.45849609375),id:preserve_layout),objectType:visualization,relativeUrls:!(%27%2Fapp%2Fkibana%23%2Fvisualize%2Fedit%2F4019c4c0-8dad-11e9-96c9-bfdd3cee8fc8%3F_g%3D(filters:!!(),refreshInterval:(pause:!!t,value:0),time:(from:now-4d,to:now))%26_a%3D(filters:!!(),linked:!!f,query:(language:lucene,query:!%27!%27),uiState:(),vis:(aggs:!!(),params:(axis_formatter:number,axis_position:left,axis_scale:normal,background_color_rules:!!((id:b8fe36b0-8dac-11e9-9d4b-f52707f2360f)),bar_color_rules:!!((id:ca629360-8dac-11e9-9d4b-f52707f2360f)),default_index_pattern:!%27filebeat-*!%27,gauge_color_rules:!!((id:cf9d61c0-8dac-11e9-9d4b-f52707f2360f)),gauge_inner_width:10,gauge_style:half,gauge_width:10,id:!%2761ca57f0-469d-11e7-af02-69e470af7417!%27,index_pattern:!%27amialerts-*!%27,interval:auto,series:!!((axis_position:right,chart_type:line,color:%252368BC00,fill:0.5,formatter:number,id:!%2761ca57f1-469d-11e7-af02-69e470af7417!%27,line_width:1,metrics:!!((id:!%2761ca57f2-469d-11e7-af02-69e470af7417!%27,type:count)),point_size:1,separate_axis:0,split_color_mode:rainbow,split_mode:terms,stacked:none,terms_field:area.keyword)),show_grid:1,show_legend:1,time_field:cdate,type:timeseries),title:!%272019%2B-Training%2BTrend!%27,type:metrics))%27),title:%272019%20-Training%20Trend%27)",
              "retries": 4,
              "interval": "15s",
              "auth": {
                "basic": {
                  "username": "elastic",
                  "password": "::es_redacted::"
                }
              }
            }
          }
        },
        "to": [
          "myemailaddress@company.com"
        ],
        "subject": "Monitoring Report"
      }
    }
  }
}

When i execute/simulate this, we get the following error

POST _watcher/watch/e833ed0e-31b8-40ce-8644-08835346f34b/_execute

{
      "_id" : "e833ed0e-31b8-40ce-8644-08835346f34b_e8944eac-ed34-4c7c-8ee7-ad53286a7dca-2020-10-06T04:43:26.199964Z",
      "watch_record" : {
        "watch_id" : "e833ed0e-31b8-40ce-8644-08835346f34b",
        "node" : "uhS6MPqkSjCmpKYpzS84Kw",
        "state" : "executed",
        "user" : "myuser",
        "status" : {
          "state" : {
            "active" : true,
            "timestamp" : "2020-10-06T04:42:13.405Z"
          },
          "last_checked" : "2020-10-06T04:43:26.199Z",
          "last_met_condition" : "2020-10-06T04:43:26.199Z",
          "actions" : {
            "email_admin" : {
              "ack" : {
                "timestamp" : "2020-10-06T04:42:13.405Z",
                "state" : "awaits_successful_execution"
              },
              "last_execution" : {
                "timestamp" : "2020-10-06T04:43:26.199Z",
                "successful" : false,
                "reason" : ""
              }
            }
          },
          "execution_state" : "executed",
          "version" : 1268
        },
        "trigger_event" : {
          "type" : "manual",
          "triggered_time" : "2020-10-06T04:43:26.199Z",
          "manual" : {
            "schedule" : {
              "scheduled_time" : "2020-10-06T04:43:26.199Z"
            }
          }
        },
        "input" : {
          "none" : { }
        },
        "condition" : {
          "always" : { }
        },
        "metadata" : {
          "name" : "UFW Automated Report",
          "xpack" : {
            "type" : "json"
          }
        },
        "result" : {
          "execution_time" : "2020-10-06T04:43:26.199Z",
          "execution_duration" : 10,
          "input" : {
            "type" : "none",
            "status" : "success",
            "payload" : { }
          },
          "condition" : {
            "type" : "always",
            "status" : "success",
            "met" : true
          },
          "actions" : [
            {
              "id" : "email_admin",
              "type" : "email",
              "status" : "failure",
              "error" : {
                "root_cause" : [
                  {
                    "type" : "exception",
                    "reason" : "Watch[e833ed0e-31b8-40ce-8644-08835346f34b] reporting[error_report.pdf] Error response when trying to trigger reporting generation host[NGINXIP], port[80] method[POST], path[/otwater/api/reporting/generate/printablePdf], status[301]"
                  }
                ],
                "type" : "exception",
                "reason" : "Watch[e833ed0e-31b8-40ce-8644-08835346f34b] reporting[error_report.pdf] Error response when trying to trigger reporting generation host[NGINXIP], port[80] method[POST], path[/otwater/api/reporting/generate/printablePdf], status[301]"
              }
            }
          ]
        },
        "messages" : [ ]
      }
    }

Any help would be highly appreciated.

2

cc @tsullivan

HTTP code 301 is not an error. It’s a permanent redirect. I would recommend rechecking your ngnix config. cc @tsullivan

Thanks
Rashmi

3

Hi Rashmi,
What would be the additional config parameters for this to work.?
I was under impression that the same job gets processed with a schedule(watcher) when we download a dashboard report as PDF.

Any example I can refer to?

4

@tsullivan @rashmi

Hello,

Was wondering if there is anything in need to do on my NGINX configuration? I also have a support ticket on this opened if you can refer to that Ref 00618891

5

@tsullivan @rashmi

Here is my Nginx configuration. Is there anything you could suggest me for the permanent redirect 301 issue.
/otwater is my serverBasepath setting in Kibana.yml

    location /otwater{
        rewrite ^/otwater/(.*) /$1 break;
        proxy_pass http://kibana_server_ip:5601/;
        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
        proxy_redirect off;
        client_max_body_size    50M;
        proxy_buffering off;
        proxy_set_header        Upgrade $http_upgrade;
        proxy_set_header        Host            $host;
        proxy_set_header        X-Real-IP       $remote_addr;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass      $http_upgrade;
 
}
6

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