Task: Create Unique Jira tickets from Splunk alerts

n8n workflow JSON:
{"id":"uD31xU0VYjogxWoY","meta":{"instanceId":"03e9d14e9196363fe7191ce21dc0bb17387a6e755dcc9acc4f5904752919dca8"},"name":"Create_Unique_Jira_tickets_from_Splunk_alerts","tags":[{"id":"GCHVocImoXoEVnzP","name":"🛠️ In progress","createdAt":"2023-10-31T02:17:21.618Z","updatedAt":"2023-10-31T02:17:21.618Z"},{"id":"QPJKatvLSxxtrE8U","name":"Secops","createdAt":"2023-10-31T02:15:11.396Z","updatedAt":"2023-10-31T02:15:11.396Z"}],"nodes":[{"id":"3f9fa220-1966-4478-b7db-c39056564c9d","name":"Webhook","type":"n8n-nodes-base.webhook","position":[-640,320],"webhookId":"f2a52578-2fef-40a6-a7ff-e03f6b751a02","parameters":{"path":"f2a52578-2fef-40a6-a7ff-e03f6b751a02","options":{},"httpMethod":"POST"},"typeVersion":1},{"id":"375ac47e-7975-45cb-b7c1-cef1c7fca701","name":"Add Ticket Comment","type":"n8n-nodes-base.jira","position":[240,520],"parameters":{"comment":"=Timestamp: {{ $('Set Host Name').item.json.body.timestamp }}\nDescription: {{ $('Set Host Name').item.json.body.description }}","options":{},"issueKey":"={{ $json.key }}","resource":"issueComment"},"credentials":{"jiraSoftwareCloudApi":{"id":"OYvpDV2Q42eY6iyA","name":"Alex Jira Cloud"}},"typeVersion":1},{"id":"a5dea875-6adf-4d18-aeb9-5fe31a0ebfae","name":"Search Ticket","type":"n8n-nodes-base.jira","position":[-200,320],"parameters":{"options":{"jql":"=splunkhostname ~ \"{{ $json['splunk-host-name'] }}\" "},"operation":"getAll"},"credentials":{"jiraSoftwareCloudApi":{"id":"OYvpDV2Q42eY6iyA","name":"Alex Jira Cloud"}},"typeVersion":1,"alwaysOutputData":true},{"id":"3dac410e-1e37-463d-9aba-bc6abf3889f7","name":"Set Host Name","type":"n8n-nodes-base.set","position":[-420,320],"parameters":{"values":{"string":[{"name":"splunk-host-name","value":"={{ $json.body.inputs.A.key['host.name'].replace(/[^a-zA-Z0-9 ]/g, '') }}"}]},"options":{}},"typeVersion":2},{"id":"465ec3b0-dd16-482e-b4b6-f8ed91fbb11b","name":"IF Ticket Not Exists","type":"n8n-nodes-base.if","position":[20,320],"parameters":{"conditions":{"string":[{"value1":"={{ $json.key }}","operation":"isEmpty"}]}},"typeVersion":1},{"id":"1315b76b-39fc-4fd3-9a45-a91e5e873874","name":"Sticky Note","type":"n8n-nodes-base.stickyNote","position":[-1120,-26.960531840248223],"parameters":{"width":643.8620281403546,"height":537.944771288002,"content":"![VirusTotal](https://i.imgur.com/spMd6AQ.png)\n## Webhook Node \nTo setup your webhook integration for Splunk, first ensure that splunk is setup to send alerts to a webhook by visiting the [Setup Guide here](https://docs.splunk.com/observability/en/admin/notif-services/webhook.html). You will copy the n8n webhook url opening the webhook node below. \n- **Form Access URLs**:\n  - **Execute Mode**: `https://n8n.domain.com/webhook/test/webhookpath` - Use this to execute the workflow interactively within the n8n canvas. Hit the 'Execute Workflow' button to see real-time execution results. We have pinned data in the webhook node to make testing easier. \n  - **Silent Mode**: `https://n8n.domain.com/webhook/webhookpath` - Use this for background execution without canvas updates. Results will be logged silently and can be reviewed in the 'Executions' tab."},"typeVersion":1},{"id":"636425b9-a11f-4891-aa00-2f3c42956c01","name":"Create Ticket","type":"n8n-nodes-base.jira","position":[240,160],"parameters":{"project":{"__rl":true,"mode":"list","value":"10001","cachedResultName":"Service Desk"},"summary":"=Splunk Alert for host {{ $('Set Host Name').item.json.body.inputs.A.key[\"host.name\"] }}:  {{ $('Set Host Name').item.json.body.description }}","issueType":{"__rl":true,"mode":"list","value":"10004","cachedResultName":"[System] Incident"},"additionalFields":{"description":"={{ $('Set Host Name').item.json.body.description }}\n\n{{ $('Set Host Name').item.json.body.messageBody }}","customFieldsUi":{"customFieldsValues":[{"fieldId":{"__rl":true,"mode":"id","value":"customfield_10063"},"fieldValue":"={{ $('Webhook').item.json[\"body\"][\"inputs\"][\"A\"][\"key\"][\"host.name\"].replace(/[^a-zA-Z0-9 ]/g, '') }}"}]}}},"credentials":{"jiraSoftwareCloudApi":{"id":"OYvpDV2Q42eY6iyA","name":"Alex Jira Cloud"}},"typeVersion":1},{"id":"47af8bdb-e0da-4923-8f0a-05deb86ac1b3","name":"Sticky Note1","type":"n8n-nodes-base.stickyNote","position":[-460,98.72468966845895],"parameters":{"width":401.99970102055784,"height":413.43480804607805,"content":"![VirusTotal](https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Jira_%28Software%29_logo.svg/320px-Jira_%28Software%29_logo.svg.png)\n## Normalize Hostname \nTo ensure no special characters are passed into jira and create issues, this set node removes special characters from the `splunk-host-name` and uses that to search and create tickets. This host name is saved as a custom field. "},"typeVersion":1},{"id":"c0bf09e6-ca08-4db6-aff0-a6528a8fb03b","name":"Sticky Note2","type":"n8n-nodes-base.stickyNote","position":[180,-21.934709587377256],"parameters":{"width":401.99970102055784,"height":348.38243930996134,"content":"![VirusTotal](https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Jira_%28Software%29_logo.svg/320px-Jira_%28Software%29_logo.svg.png)\n## Create a new ticket\nThis creates a new ticket in your Prjoect and issue type. Ensure to update these values to ensure it works correctly. "},"typeVersion":1},{"id":"a175e343-83ed-4442-94df-7e7027b8c687","name":"Sticky Note3","type":"n8n-nodes-base.stickyNote","position":[180,340],"parameters":{"width":401.99970102055784,"height":341.08777742613927,"content":"![VirusTotal](https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Jira_%28Software%29_logo.svg/320px-Jira_%28Software%29_logo.svg.png)\n## Add Ticket Comment\nThis adds the alert as a comment in the existing ticket, to ensure the data is not duplicated. "},"typeVersion":1},{"id":"09143b8c-a4ce-4791-8937-3333d24b6e01","name":"Sticky Note4","type":"n8n-nodes-base.stickyNote","position":[-40,100.50445897107033],"parameters":{"width":193.6032856277124,"height":415.27445353029793,"content":"## Check if ticket found\nThis checks `$json.key` to see if the value was found, and route accordingly."},"typeVersion":1}],"active":false,"pinData":{"Webhook":[{"json":{"body":{"tip":null,"rule":"n8n-test","inputs":{"A":{"key":{"os.type":"linux","host.name":"n8n-enterprise-demo","sf_metric":"cpu.utilization"},"value":"0.1670342357065173","fragment":"data('cpu.utilization').publish(label='A')"},"_S2":{"value":"0.2","fragment":"threshold(0.2)"}},"status":"ok","detector":"n8n-test","imageUrl":"https://static.eu0.signalfx.com/signed/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJjb20uc2lnbmFsZnguYXBwIiwiZXhwIjoxNjk0NjE0NjI2LCJpSWQiOiJGNVZBcTEwQUVBQSIsIm9JZCI6IkY1V0JKZ2lBSUFBIiwiYlQiOiJlbmQifQ.udzyF5-HqKyV_EMRmT51EtgECK9g-wanl8nx_MH0i9Q/async","severity":"Critical","eventType":"F5Vx1EuAAKc__F5V-TcTAEJ8__n8n-test","sf_schema":2,"timestamp":"2023-09-06T14:17:00Z","detectorId":"F5V-TcTAEJ8","incidentId":"F5VAq10AEAA","runbookUrl":null,"description":"The value of cpu.utilization is above 0.2.","detectorUrl":"https://app.eu0.signalfx.com/#/detector/F5V-TcTAEJ8/edit?incidentId=F5VAq10AEAA&is=ok","messageBody":"Rule \"n8n-test\" in detector \"n8n-test\" cleared at Wed, 6 Sep 2023 14:17:00 GMT.\n\nCurrent signal value for n8n.test: 0.1670342357065173\n\nSignal details:\n{sf_metric=cpu.utilization, host.name=n8n-enterprise-demo, os.type=linux}","messageTitle":"Back to normal: n8n-test (n8n-test)","statusExtended":"ok","detectOnCondition":"when(A > threshold(0.2))","originatingMetric":"cpu.utilization","triggeredWhileMuted":false},"query":{},"params":{},"headers":{"host":"internal.users.n8n.cloud","x-real-ip":"10.255.0.2","user-agent":"Apache-HttpClient/4.5.14 (Java/1.8.0_372)","content-type":"application/json; charset=utf-8","content-length":"1366","accept-encoding":"gzip,deflate","x-forwarded-for":"10.255.0.2","x-forwarded-host":"internal.users.n8n.cloud","x-forwarded-port":"443","x-forwarded-proto":"https","x-forwarded-server":"e591fa1c2d01"}}}]},"settings":{"executionOrder":"v1"},"versionId":"3985cac2-7f23-4d27-b826-0edfb0544b58","connections":{"Webhook":{"main":[[{"node":"Set Host Name","type":"main","index":0}]]},"Search Ticket":{"main":[[{"node":"IF Ticket Not Exists","type":"main","index":0}]]},"Set Host Name":{"main":[[{"node":"Search Ticket","type":"main","index":0}]]},"IF Ticket Not Exists":{"main":[[{"node":"Create Ticket","type":"main","index":0}],[{"node":"Add Ticket Comment","type":"main","index":0}]]}}}