{ "name": "Container Update", "nodes": [ { "parameters": { "inputSource": "passthrough", "schema": { "schemaType": "fromFields", "fields": [ { "fieldName": "containerId", "fieldType": "string" }, { "fieldName": "containerName", "fieldType": "string" }, { "fieldName": "chatId", "fieldType": "number" }, { "fieldName": "messageId", "fieldType": "number" }, { "fieldName": "responseMode", "fieldType": "string" } ] } }, "id": "sub-trigger", "name": "When executed by another workflow", "type": "n8n-nodes-base.executeWorkflowTrigger", "typeVersion": 1.1, "position": [ 240, 300 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "typeValidation": "loose" }, "conditions": [ { "id": "has-container-id", "leftValue": "={{ $json.containerId }}", "rightValue": "", "operator": { "type": "string", "operation": "notEquals" } } ], "combinator": "and" } }, "id": "if-has-id", "name": "Has Container ID?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 400, 300 ] }, { "parameters": { "url": "http://docker-socket-proxy:2375/v1.47/containers/json?all=true", "options": { "timeout": 5000 } }, "id": "http-get-containers", "name": "Get All Containers", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 560, 400 ] }, { "parameters": { "jsCode": "// Find container by name and resolve ID\nconst triggerData = $('When executed by another workflow').item.json;\nconst containerName = triggerData.containerName;\nconst containers = $input.all();\n\n// Normalize function to strip leading slash\nconst normalizeName = (name) => name.replace(/^\\//, '').toLowerCase();\nconst searchName = normalizeName(containerName);\n\n// Find matching container\nlet matched = null;\nfor (const item of containers) {\n const c = item.json;\n if (c.Names && c.Names.length > 0) {\n const cName = normalizeName(c.Names[0]);\n if (cName === searchName || cName.includes(searchName)) {\n matched = c;\n break;\n }\n }\n}\n\nif (!matched) {\n throw new Error(`Container '${containerName}' not found`);\n}\n\nreturn {\n json: {\n ...triggerData,\n containerId: matched.Id\n }\n};" }, "id": "code-resolve-id", "name": "Resolve Container ID", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 720, 400 ] }, { "parameters": { "method": "GET", "url": "=http://docker-socket-proxy:2375/containers/{{ $json.containerId }}/json", "options": { "timeout": 5000 } }, "id": "http-inspect-container", "name": "Inspect Container", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 460, 300 ] }, { "parameters": { "jsCode": "// Parse container config and prepare for pull\nconst inspectData = $input.item.json;\nconst triggerData = $('When executed by another workflow').item.json;\nconst containerId = triggerData.containerId;\nconst containerName = triggerData.containerName;\nconst chatId = triggerData.chatId;\nconst messageId = triggerData.messageId;\nconst responseMode = triggerData.responseMode;\n\n// Extract image info\nlet imageName = inspectData.Config.Image;\nconst currentImageId = inspectData.Image;\n\n// CRITICAL: Ensure image has a tag, otherwise Docker pulls ALL tags!\nif (imageName && !imageName.includes(':') && !imageName.includes('@')) {\n imageName = imageName + ':latest';\n}\n\n// Extract config for recreation\nconst containerConfig = inspectData.Config;\nconst hostConfig = inspectData.HostConfig;\nconst networkSettings = inspectData.NetworkSettings;\n\n// Get current version from labels or image digest\nconst labels = containerConfig.Labels || {};\nconst currentVersion = labels['org.opencontainers.image.version']\n || labels['version']\n || currentImageId.substring(7, 19);\n\nreturn {\n json: {\n containerId,\n containerName,\n chatId,\n messageId,\n responseMode,\n imageName,\n currentImageId,\n currentVersion,\n containerConfig,\n hostConfig,\n networkSettings\n }\n};" }, "id": "code-parse-config", "name": "Parse Container Config", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 680, 300 ] }, { "parameters": { "command": "=curl -s --max-time 600 -X POST 'http://docker-socket-proxy:2375/v1.47/images/create?fromImage={{ encodeURIComponent($json.imageName) }}' | tail -c 10000", "options": { "timeout": 660 } }, "id": "exec-pull-image", "name": "Pull Image", "type": "n8n-nodes-base.executeCommand", "typeVersion": 1, "position": [ 900, 300 ] }, { "parameters": { "jsCode": "// Check pull response for errors\nconst stdout = $input.item.json.stdout || '';\nconst prevData = $('Parse Container Config').item.json;\n\n// Docker pull streams JSON objects, check for error messages\nif (stdout.includes('\"message\"') && (stdout.includes('toomanyrequests') || stdout.includes('error') || stdout.includes('denied'))) {\n // Extract error message\n let errorMsg = 'Pull failed';\n try {\n const match = stdout.match(/\"message\"\\s*:\\s*\"([^\"]+)\"/);\n if (match) errorMsg = match[1];\n } catch (e) {}\n \n return {\n json: {\n pullError: true,\n errorMessage: errorMsg.substring(0, 100),\n ...prevData\n }\n };\n}\n\n// Success - pass through data\nreturn {\n json: {\n pullError: false,\n ...prevData\n }\n};" }, "id": "code-check-pull", "name": "Check Pull Response", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1120, 300 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "id": "pull-success", "leftValue": "={{ $json.pullError }}", "rightValue": false, "operator": { "type": "boolean", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "if-pull-success", "name": "Check Pull Success", "type": "n8n-nodes-base.if", "typeVersion": 2, "position": [ 1340, 300 ] }, { "parameters": { "method": "GET", "url": "=http://docker-socket-proxy:2375/v1.47/images/{{ encodeURIComponent($json.imageName) }}/json", "options": { "timeout": 5000 } }, "id": "http-inspect-new-image", "name": "Inspect New Image", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 1560, 200 ] }, { "parameters": { "jsCode": "// Compare old and new image IDs\nconst newImage = $input.item.json;\nconst prevData = $('Check Pull Success').item.json;\nconst currentImageId = prevData.currentImageId;\n\nconst newImageId = newImage.Id;\n\nif (currentImageId === newImageId) {\n // No update needed\n return {\n json: {\n needsUpdate: false,\n ...prevData\n }\n };\n}\n\n// Extract new version from labels\nconst labels = newImage.Config?.Labels || {};\nconst newVersion = labels['org.opencontainers.image.version']\n || labels['version']\n || newImageId.substring(7, 19);\n\nreturn {\n json: {\n needsUpdate: true,\n newImageId,\n newVersion,\n ...prevData\n }\n};" }, "id": "code-compare-digests", "name": "Compare Digests", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1780, 200 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "id": "needs-update", "leftValue": "={{ $json.needsUpdate }}", "rightValue": true, "operator": { "type": "boolean", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "if-needs-update", "name": "Check If Update Needed", "type": "n8n-nodes-base.if", "typeVersion": 2, "position": [ 2000, 200 ] }, { "parameters": { "method": "POST", "url": "=http://docker-socket-proxy:2375/v1.47/containers/{{ $json.containerId }}/stop?t=10", "options": { "timeout": 15000 } }, "id": "http-stop-container", "name": "Stop Container", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 2220, 100 ], "onError": "continueRegularOutput" }, { "parameters": { "method": "DELETE", "url": "=http://docker-socket-proxy:2375/v1.47/containers/{{ $('Check If Update Needed').item.json.containerId }}", "options": { "timeout": 5000 } }, "id": "http-remove-container", "name": "Remove Container", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 2440, 100 ], "onError": "continueRegularOutput" }, { "parameters": { "jsCode": "// Build container create request body from saved config\nconst prevData = $('Check If Update Needed').item.json;\nconst config = prevData.containerConfig;\nconst hostConfig = prevData.hostConfig;\nconst networkSettings = prevData.networkSettings;\nconst containerName = prevData.containerName;\n\n// Build NetworkingConfig from NetworkSettings\nconst networks = {};\nfor (const [name, netConfig] of Object.entries(networkSettings.Networks || {})) {\n networks[name] = {\n IPAMConfig: netConfig.IPAMConfig,\n Links: netConfig.Links,\n Aliases: netConfig.Aliases\n };\n}\n\nconst createBody = {\n ...config,\n HostConfig: hostConfig,\n NetworkingConfig: {\n EndpointsConfig: networks\n }\n};\n\n// Remove fields that shouldn't be in create request\ndelete createBody.Hostname;\ndelete createBody.Domainname;\n\nreturn {\n json: {\n createBody,\n containerName,\n ...prevData\n }\n};" }, "id": "code-build-create-body", "name": "Build Create Body", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2660, 100 ] }, { "parameters": { "method": "POST", "url": "=http://docker-socket-proxy:2375/v1.47/containers/create?name={{ encodeURIComponent($json.containerName) }}", "sendBody": true, "specifyBody": "json", "jsonBody": "={{ JSON.stringify($json.createBody) }}", "options": { "timeout": 5000 } }, "id": "http-create-container", "name": "Create Container", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 2880, 100 ] }, { "parameters": { "jsCode": "// Parse create response and extract new container ID\nconst response = $input.item.json;\nconst prevData = $('Build Create Body').item.json;\n\nif (response.message) {\n // Error response from Docker\n return {\n json: {\n createError: true,\n errorMessage: response.message,\n ...prevData\n }\n };\n}\n\nreturn {\n json: {\n createError: false,\n newContainerId: response.Id,\n ...prevData\n }\n};" }, "id": "code-parse-create", "name": "Parse Create Response", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 3100, 100 ] }, { "parameters": { "method": "POST", "url": "=http://docker-socket-proxy:2375/v1.47/containers/{{ $json.newContainerId }}/start", "options": { "timeout": 5000 } }, "id": "http-start-container", "name": "Start Container", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 3320, 100 ], "onError": "continueRegularOutput" }, { "parameters": { "jsCode": "// Format update success result and clean up old image\nconst prevData = $('Parse Create Response').item.json;\nconst containerName = prevData.containerName;\nconst currentVersion = prevData.currentVersion;\nconst newVersion = prevData.newVersion;\nconst currentImageId = prevData.currentImageId;\nconst chatId = prevData.chatId;\nconst messageId = prevData.messageId;\nconst responseMode = prevData.responseMode;\n\nconst message = `${containerName} updated: ${currentVersion} \\u2192 ${newVersion}`;\n\nreturn {\n json: {\n success: true,\n updated: true,\n message,\n oldDigest: currentVersion,\n newDigest: newVersion,\n currentImageId,\n chatId,\n messageId,\n responseMode,\n containerName\n }\n};" }, "id": "code-format-success", "name": "Format Update Success", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 3540, 100 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "id": "is-inline", "leftValue": "={{ $json.responseMode }}", "rightValue": "inline", "operator": { "type": "string", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "if-response-mode-success", "name": "Check Response Mode (Success)", "type": "n8n-nodes-base.if", "typeVersion": 2, "position": [ 3760, 100 ] }, { "parameters": { "method": "POST", "url": "=https://api.telegram.org/bot{{ $env.TELEGRAM_BOT_TOKEN }}/editMessageText", "sendBody": true, "specifyBody": "json", "jsonBody": "={{ JSON.stringify({ chat_id: $json.chatId, message_id: $json.messageId, text: '\\u2705 ' + $json.message, parse_mode: 'HTML', reply_markup: { inline_keyboard: [[{ text: '\\u25C0\\uFE0F Back to Containers', callback_data: 'list:0' }]] } }) }}", "options": {} }, "id": "http-send-inline-success", "name": "Send Inline Success", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 3980, 0 ] }, { "parameters": { "resource": "message", "operation": "sendMessage", "chatId": "={{ $json.chatId }}", "text": "={{ $json.message }}", "additionalFields": { "parse_mode": "HTML" } }, "id": "telegram-send-text-success", "name": "Send Text Success", "type": "n8n-nodes-base.telegram", "typeVersion": 1.2, "position": [ 3980, 200 ], "credentials": { "telegramApi": { "id": "I0xTTiASl7C1NZhJ", "name": "Telegram account" } } }, { "parameters": { "method": "DELETE", "url": "=http://docker-socket-proxy:2375/v1.47/images/{{ $('Format Update Success').item.json.currentImageId }}?force=false", "options": { "timeout": 5000 } }, "id": "http-remove-old-image-success", "name": "Remove Old Image (Success)", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 4200, 100 ], "onError": "continueRegularOutput" }, { "parameters": { "jsCode": "// Return final success result\nconst data = $('Format Update Success').item.json;\nreturn {\n json: {\n success: true,\n updated: true,\n message: data.message,\n oldDigest: data.oldDigest,\n newDigest: data.newDigest\n }\n};" }, "id": "code-return-success", "name": "Return Success", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 4420, 100 ] }, { "parameters": { "jsCode": "// Format 'already up to date' result\nconst prevData = $('Check If Update Needed').item.json;\nconst containerName = prevData.containerName;\nconst chatId = prevData.chatId;\nconst messageId = prevData.messageId;\nconst responseMode = prevData.responseMode;\n\nconst message = `${containerName} is already up to date`;\n\nreturn {\n json: {\n success: true,\n updated: false,\n message,\n chatId,\n messageId,\n responseMode,\n containerName\n }\n};" }, "id": "code-format-no-update", "name": "Format No Update Needed", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2220, 300 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "id": "is-inline-no-update", "leftValue": "={{ $json.responseMode }}", "rightValue": "inline", "operator": { "type": "string", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "if-response-mode-no-update", "name": "Check Response Mode (No Update)", "type": "n8n-nodes-base.if", "typeVersion": 2, "position": [ 2440, 300 ] }, { "parameters": { "method": "POST", "url": "=https://api.telegram.org/bot{{ $env.TELEGRAM_BOT_TOKEN }}/editMessageText", "sendBody": true, "specifyBody": "json", "jsonBody": "={{ JSON.stringify({ chat_id: $json.chatId, message_id: $json.messageId, text: '\\u2705 ' + $json.message, parse_mode: 'HTML', reply_markup: { inline_keyboard: [[{ text: '\\u25C0\\uFE0F Back to Containers', callback_data: 'list:0' }]] } }) }}", "options": {} }, "id": "http-send-inline-no-update", "name": "Send Inline No Update", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 2660, 200 ] }, { "parameters": { "resource": "message", "operation": "sendMessage", "chatId": "={{ $json.chatId }}", "text": "={{ $json.message }}", "additionalFields": { "parse_mode": "HTML" } }, "id": "telegram-send-text-no-update", "name": "Send Text No Update", "type": "n8n-nodes-base.telegram", "typeVersion": 1.2, "position": [ 2660, 400 ], "credentials": { "telegramApi": { "id": "I0xTTiASl7C1NZhJ", "name": "Telegram account" } } }, { "parameters": { "jsCode": "// Return no update result\nconst data = $('Format No Update Needed').item.json;\nreturn {\n json: {\n success: true,\n updated: false,\n message: data.message\n }\n};" }, "id": "code-return-no-update", "name": "Return No Update", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2880, 300 ] }, { "parameters": { "jsCode": "// Format pull error result\nconst prevData = $('Check Pull Success').item.json;\nconst containerName = prevData.containerName;\nconst errorMessage = prevData.errorMessage;\nconst chatId = prevData.chatId;\nconst messageId = prevData.messageId;\nconst responseMode = prevData.responseMode;\n\nconst message = `Failed to update ${containerName}: ${errorMessage}`;\n\nreturn {\n json: {\n success: false,\n updated: false,\n message,\n chatId,\n messageId,\n responseMode,\n containerName\n }\n};" }, "id": "code-format-pull-error", "name": "Format Pull Error", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1560, 400 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "id": "is-inline-error", "leftValue": "={{ $json.responseMode }}", "rightValue": "inline", "operator": { "type": "string", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "if-response-mode-error", "name": "Check Response Mode (Error)", "type": "n8n-nodes-base.if", "typeVersion": 2, "position": [ 1780, 400 ] }, { "parameters": { "method": "POST", "url": "=https://api.telegram.org/bot{{ $env.TELEGRAM_BOT_TOKEN }}/editMessageText", "sendBody": true, "specifyBody": "json", "jsonBody": "={{ JSON.stringify({ chat_id: $json.chatId, message_id: $json.messageId, text: '\\u274C ' + $json.message, parse_mode: 'HTML', reply_markup: { inline_keyboard: [[{ text: '\\u25C0\\uFE0F Back to Containers', callback_data: 'list:0' }]] } }) }}", "options": {} }, "id": "http-send-inline-error", "name": "Send Inline Error", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 2000, 300 ] }, { "parameters": { "resource": "message", "operation": "sendMessage", "chatId": "={{ $json.chatId }}", "text": "={{ $json.message }}", "additionalFields": { "parse_mode": "HTML" } }, "id": "telegram-send-text-error", "name": "Send Text Error", "type": "n8n-nodes-base.telegram", "typeVersion": 1.2, "position": [ 2000, 500 ], "credentials": { "telegramApi": { "id": "I0xTTiASl7C1NZhJ", "name": "Telegram account" } } }, { "parameters": { "jsCode": "// Return error result\nconst data = $('Format Pull Error').item.json;\nreturn {\n json: {\n success: false,\n updated: false,\n message: data.message\n }\n};" }, "id": "code-return-error", "name": "Return Error", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2220, 400 ] } ], "connections": { "When executed by another workflow": { "main": [ [ { "node": "Has Container ID?", "type": "main", "index": 0 } ] ] }, "Has Container ID?": { "main": [ [ { "node": "Inspect Container", "type": "main", "index": 0 } ], [ { "node": "Get All Containers", "type": "main", "index": 0 } ] ] }, "Get All Containers": { "main": [ [ { "node": "Resolve Container ID", "type": "main", "index": 0 } ] ] }, "Resolve Container ID": { "main": [ [ { "node": "Inspect Container", "type": "main", "index": 0 } ] ] }, "Inspect Container": { "main": [ [ { "node": "Parse Container Config", "type": "main", "index": 0 } ] ] }, "Parse Container Config": { "main": [ [ { "node": "Pull Image", "type": "main", "index": 0 } ] ] }, "Pull Image": { "main": [ [ { "node": "Check Pull Response", "type": "main", "index": 0 } ] ] }, "Check Pull Response": { "main": [ [ { "node": "Check Pull Success", "type": "main", "index": 0 } ] ] }, "Check Pull Success": { "main": [ [ { "node": "Inspect New Image", "type": "main", "index": 0 } ], [ { "node": "Format Pull Error", "type": "main", "index": 0 } ] ] }, "Inspect New Image": { "main": [ [ { "node": "Compare Digests", "type": "main", "index": 0 } ] ] }, "Compare Digests": { "main": [ [ { "node": "Check If Update Needed", "type": "main", "index": 0 } ] ] }, "Check If Update Needed": { "main": [ [ { "node": "Stop Container", "type": "main", "index": 0 } ], [ { "node": "Format No Update Needed", "type": "main", "index": 0 } ] ] }, "Stop Container": { "main": [ [ { "node": "Remove Container", "type": "main", "index": 0 } ] ] }, "Remove Container": { "main": [ [ { "node": "Build Create Body", "type": "main", "index": 0 } ] ] }, "Build Create Body": { "main": [ [ { "node": "Create Container", "type": "main", "index": 0 } ] ] }, "Create Container": { "main": [ [ { "node": "Parse Create Response", "type": "main", "index": 0 } ] ] }, "Parse Create Response": { "main": [ [ { "node": "Start Container", "type": "main", "index": 0 } ] ] }, "Start Container": { "main": [ [ { "node": "Format Update Success", "type": "main", "index": 0 } ] ] }, "Format Update Success": { "main": [ [ { "node": "Check Response Mode (Success)", "type": "main", "index": 0 } ] ] }, "Check Response Mode (Success)": { "main": [ [ { "node": "Send Inline Success", "type": "main", "index": 0 } ], [ { "node": "Send Text Success", "type": "main", "index": 0 } ] ] }, "Send Inline Success": { "main": [ [ { "node": "Remove Old Image (Success)", "type": "main", "index": 0 } ] ] }, "Send Text Success": { "main": [ [ { "node": "Remove Old Image (Success)", "type": "main", "index": 0 } ] ] }, "Remove Old Image (Success)": { "main": [ [ { "node": "Return Success", "type": "main", "index": 0 } ] ] }, "Format No Update Needed": { "main": [ [ { "node": "Check Response Mode (No Update)", "type": "main", "index": 0 } ] ] }, "Check Response Mode (No Update)": { "main": [ [ { "node": "Send Inline No Update", "type": "main", "index": 0 } ], [ { "node": "Send Text No Update", "type": "main", "index": 0 } ] ] }, "Send Inline No Update": { "main": [ [ { "node": "Return No Update", "type": "main", "index": 0 } ] ] }, "Send Text No Update": { "main": [ [ { "node": "Return No Update", "type": "main", "index": 0 } ] ] }, "Format Pull Error": { "main": [ [ { "node": "Check Response Mode (Error)", "type": "main", "index": 0 } ] ] }, "Check Response Mode (Error)": { "main": [ [ { "node": "Send Inline Error", "type": "main", "index": 0 } ], [ { "node": "Send Text Error", "type": "main", "index": 0 } ] ] }, "Send Inline Error": { "main": [ [ { "node": "Return Error", "type": "main", "index": 0 } ] ] }, "Send Text Error": { "main": [ [ { "node": "Return Error", "type": "main", "index": 0 } ] ] } }, "settings": { "executionOrder": "v1" } }