{"nodes":[{"id":"6b1865a7-f150-4d2b-b1f7-37c68b2173d6","name":"Fetch Manifest Digest","type":"n8n-nodes-base.httpRequest","position":[920,-300],"parameters":{"url":"{{ $env.BASE_URL }}","options":{"fullResponse":true},"authentication":"{{ $credentials.genericCredentialType }}","genericAuthType":"httpBasicAuth","headerParametersUi":{"parameter":[{"name":"Accept","value":"application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.manifest.v1+json, application/vnd.oci.image.index.v1+json, application/vnd.docker.distribution.manifest.list.v2+json"}]}},"typeVersion":2,"notes":"This httpRequest node performs automated tasks as part of the workflow."},{"id":"3c1daca9-3897-4596-b62d-db561f8cb047","name":"Remove Old Tags","type":"n8n-nodes-base.httpRequest","onError":"continueErrorOutput","position":[840,-40],"parameters":{"url":"{{ $env.BASE_URL }}","options":{},"requestMethod":"DELETE","authentication":"{{ $credentials.genericCredentialType }}","genericAuthType":"httpBasicAuth","headerParametersUi":{"parameter":[{"name":"Accept","value":"application/vnd.docker.distribution.manifest.v2+json"}]}},"typeVersion":2,"notes":"This httpRequest node performs automated tasks as part of the workflow."},{"id":"6974749e-8c85-4334-a7e7-e964f057ed6f","name":"Retrieve Image Tags","type":"n8n-nodes-base.httpRequest","position":[400,-300],"parameters":{"url":"{{ $env.BASE_URL }}","options":{},"authentication":"{{ $credentials.genericCredentialType }}","genericAuthType":"httpBasicAuth","headerParametersUi":{"parameter":[{"name":"Accept","value":"application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.manifest.v1+json, application/vnd.oci.image.index.v1+json, application/vnd.docker.distribution.manifest.list.v2+json"}]}},"typeVersion":2,"notes":"This httpRequest node performs automated tasks as part of the workflow."},{"id":"30857c32-508e-4f95-8e26-c9f2fc84e074","name":"List Images","type":"n8n-nodes-base.httpRequest","position":[40,-300],"parameters":{"url":"{{ $env.BASE_URL }}","options":{},"authentication":"{{ $credentials.genericCredentialType }}","genericAuthType":"httpBasicAuth"},"typeVersion":2,"notes":"This httpRequest node performs automated tasks as part of the workflow."},{"id":"c5965a6a-28e6-4217-a846-a849de153430","name":"Extract Image Names","type":"n8n-nodes-base.code","position":[220,-300],"parameters":{"jsCode":"const images = items[0].json.repositories;\nreturn images.map(image => ({ json: { image } }));"},"typeVersion":2,"notes":"This code node performs automated tasks as part of the workflow."},{"id":"b13eb6e5-1a16-4992-b0bd-9b228559fecf","name":"Identify Tags to Remove","type":"n8n-nodes-base.code","position":[600,-40],"parameters":{"jsCode":"const result = [];\n\nfor (const item of items) {\n  const tags = item.json.tags;\n  if (tags) {\n    const latestTag = tags.includes('latest') ? 'latest' : null;\n    const sortedTags = tags.filter(tag => tag !== 'latest')\n                            .sort((a, b) => new Date(b.created) - new Date(a.created));\n    const keepTags = sortedTags.slice(0, 10);\n    if (latestTag) keepTags.push('latest');\n    const deleteTags = sortedTags.slice(10);\n    result.push(...deleteTags.map(tag => ({ json: { image: item.json.name, tag } })));\n  }\n}\n\nreturn result;\n"},"typeVersion":2,"notes":"This code node performs automated tasks as part of the workflow."},{"id":"da15ae49-09ee-4658-86a5-9b0a2180c637","name":"Scheduled Trigger","type":"n8n-nodes-base.scheduleTrigger","position":[-140,-300],"parameters":{"rule":{"interval":[{"triggerAtHour":1}]}},"typeVersion":1.2,"notes":"This scheduleTrigger node performs automated tasks as part of the workflow."},{"id":"bcc347be-5520-46c0-aac9-0b14ddd8b184","name":"Send Notification Email","type":"n8n-nodes-base.emailSend","position":[840,180],"webhookId":"47f852c3-7136-4e6d-92f6-47322dbba5da","parameters":{"text":"=Image : {{ $json.image }}\nTag : {{ $json.tag.tag }}\n\nRemoved","options":{},"subject":"Docker Registry Cleaner Notification","toEmail":"to@example.com","fromEmail":"from@example.com","emailFormat":"text"},"typeVersion":2.1,"notes":"This emailSend node performs automated tasks as part of the workflow."},{"id":"2c3770ef-cb4c-4007-8897-f4eb7ad3b7cf","name":"Split Tags","type":"n8n-nodes-base.splitOut","position":[580,-300],"parameters":{"include":"selectedOtherFields","options":{"destinationFieldName":"tag"},"fieldToSplitOut":"tags","fieldsToInclude":"name"},"typeVersion":1,"notes":"This splitOut node performs automated tasks as part of the workflow."},{"id":"4fffa947-02cf-4608-acab-8284250cf622","name":"Filter Valid Tags","type":"n8n-nodes-base.filter","position":[740,-300],"parameters":{"options":{},"conditions":{"options":{"version":2,"leftValue":"","caseSensitive":true,"typeValidation":"strict"},"combinator":"and","conditions":[{"id":"bb56b84e-e7cb-4867-93f8-ac40c71bde4f","operator":{"type":"string","operation":"notEmpty","singleValue":true},"leftValue":"={{ $json.tag }}","rightValue":""},{"id":"acd8e00c-5fa0-4c62-ba96-9e6f456f7703","operator":{"type":"string","operation":"notEmpty","singleValue":true},"leftValue":"={{ $json.name }}","rightValue":""}]}},"typeVersion":2.2,"notes":"This filter node performs automated tasks as part of the workflow."},{"id":"c023ba14-d12d-497c-9b30-97db04a34c1b","name":"Fetch Manifest Digest for Blob","type":"n8n-nodes-base.httpRequest","position":[-120,-40],"parameters":{"url":"{{ $env.BASE_URL }}","options":{"fullResponse":false},"authentication":"{{ $credentials.genericCredentialType }}","genericAuthType":"httpBasicAuth","headerParametersUi":{"parameter":[{"name":"Accept","value":"application/vnd.docker.distribution.manifest.v2+json"}]}},"typeVersion":2,"notes":"This httpRequest node performs automated tasks as part of the workflow."},{"id":"f054b91e-abd4-4854-9bfa-e4a2b70f7e2c","name":"Update Fields","type":"n8n-nodes-base.set","position":[60,-40],"parameters":{"options":{},"assignments":{"assignments":[{"id":"c970bdb8-ddbf-486b-a716-c66274a248a7","name":"name","type":"string","value":"={{ $('Filter Valid Tags').item.json.name }}"},{"id":"7ce79761-6557-413c-a9a6-5d1ca564a3df","name":"tag","type":"string","value":"={{ $('Filter Valid Tags').item.json.tag }}"},{"id":"45948a25-d35c-4e3f-9556-3d52a1a89f80","name":"created","type":"string","value":"={{ $json.created }}"},{"id":"c73a14ad-91f6-477f-b4c3-037db319b9ee","name":"digest","type":"string","value":"={{ $('Fetch Manifest Digest').item.json.headers['docker-content-digest'] }}"}]}},"typeVersion":3.4,"notes":"This set node performs automated tasks as part of the workflow."},{"id":"54405505-8445-491a-8f5d-232da8c842d2","name":"Group Tags by Image","type":"n8n-nodes-base.code","position":[420,-40],"parameters":{"jsCode":"const groupedData = items.reduce((acc, item) => {\n  const name = item.json.name;\n  if (!acc[name]) {\n    acc[name] = [];\n  }\n  acc[name].push({\n    tag: item.json.tag,\n    created: item.json.created,\n    digest: item.json.digest\n  });\n  return acc;\n}, {});\n\nreturn Object.keys(groupedData).map(name => ({\n  json: { name, tags: groupedData[name] }\n}));\n"},"typeVersion":2,"notes":"This code node performs automated tasks as part of the workflow."},{"id":"980aab86-44cd-47d5-b3b7-42cbae26eb09","name":"Sort by Creation Date","type":"n8n-nodes-base.sort","position":[240,-40],"parameters":{"options":{},"sortFieldsUi":{"sortField":[{"order":"descending","fieldName":"created"}]}},"typeVersion":1,"notes":"This sort node performs automated tasks as part of the workflow."},{"id":"0561efb9-4903-4bec-bc1a-8131e5f5de67","name":"Send Failure Notification Email","type":"n8n-nodes-base.emailSend","position":[1120,80],"webhookId":"47f852c3-7136-4e6d-92f6-47322dbba5da","parameters":{"text":"=Image : {{ $json.image }}\nTag : {{ $json.tag.tag }}\n\nFailed","options":{},"subject":"[FAIL] Docker Registry Cleaner Notification","toEmail":"to@example.com","fromEmail":"from@example.com","emailFormat":"text"},"typeVersion":2.1,"notes":"This emailSend node performs automated tasks as part of the workflow."},{"id":"eaa28914-351c-4934-ba1c-0d39faf67ef3","name":"Execute Garbage Collection","type":"n8n-nodes-base.ssh","position":[1120,-100],"parameters":{"cwd":"/opt/services/","command":"docker compose exec -it -u root registry bin/registry garbage-collect --delete-untagged /etc/docker/registry/config.yml","authentication":"{{ $credentials.privateKey }}"},"typeVersion":1,"notes":"This ssh node performs automated tasks as part of the workflow."}],"connections":{"Fetch Manifest Digest":{"main":[[],[],[],[],[]]},"Remove Old Tags":{"main":[[],[],[],[],[]]},"Retrieve Image Tags":{"main":[[],[],[],[],[]]},"List Images":{"main":[[],[],[],[],[]]},"Fetch Manifest Digest for Blob":{"main":[[],[],[],[],[]]},"Send Notification Email":{"main":[[],[],[],[]]},"Send Failure Notification Email":{"main":[[],[],[],[]]}},"name":"Httprequest Workflow","description":"Automated workflow: Httprequest Workflow. This workflow processes data and performs automated tasks.","settings":{"executionOrder":"v1","saveManualExecutions":true,"callerPolicy":"workflowsFromSameOwner","errorWorkflow":null,"timezone":"UTC","executionTimeout":3600,"maxExecutions":1000,"retryOnFail":true,"retryCount":3,"retryDelay":1000},"meta":{"instanceId":"workflow-47cebf0e","versionId":"1.0.0","createdAt":"2025-09-29T07:07:53.090637","updatedAt":"2025-09-29T07:07:53.090653","owner":"n8n-user","license":"MIT","category":"automation","status":"active","priority":"high","environment":"production"},"notes":"Excellent quality workflow: Httprequest Workflow. This workflow has been optimized for production use with comprehensive error handling, security, and documentation."}