138 lines
No EOL
5.3 KiB
Text
138 lines
No EOL
5.3 KiB
Text
#!/usr/bin/env nu
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# Demo 6: Migration from Existing Tools
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# Shows migration paths from Terraform, Ansible, etc.
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# Target audience: Teams with existing infrastructure
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print "=== Demo 6: Migration from Existing Tools ==="
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print "\n1. Analyzing existing Terraform infrastructure..."
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# Import existing Terraform state
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print "Importing Terraform state and configurations..."
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run-external "provisioning" import terraform --state-file "terraform.tfstate" --config-dir "./terraform"
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print "\n2. Current Terraform configuration analysis:"
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let terraform_analysis = [
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{resource_type: "aws_instance", count: 12, complexity: "Medium", migration: "✅ Supported"},
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{resource_type: "aws_rds_instance", count: 3, complexity: "Low", migration: "✅ Supported"},
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{resource_type: "aws_load_balancer", count: 4, complexity: "High", migration: "✅ Supported"},
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{resource_type: "aws_security_group", count: 18, complexity: "Medium", migration: "✅ Supported"},
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{resource_type: "aws_vpc", count: 2, complexity: "High", migration: "✅ Supported"},
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{resource_type: "custom_module", count: 5, complexity: "High", migration: "🟡 Manual review"}
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]
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$terraform_analysis | table
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print "\n3. Generating equivalent KCL configuration..."
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run-external "provisioning" convert terraform --input "./terraform" --output "./kcl/migrated-infra.k"
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print "\n4. Terraform vs KCL comparison:"
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print "\n🔄 Original Terraform (HCL):"
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print """
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resource "aws_instance" "web" {
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ami = "ami-12345678"
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instance_type = "t3.medium"
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tags = {
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Name = "web-server"
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}
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}"""
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print "\n✨ Converted KCL:"
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print """
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webServer = ec2.Instance {
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ami: "ami-12345678"
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instanceType: "t3.medium"
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tags: {
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Name: "web-server"
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}
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}"""
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print "\n5. Ansible playbook migration:"
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run-external "provisioning" import ansible --playbook-dir "./ansible" --inventory "./inventory"
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let ansible_analysis = [
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{playbook: "web-setup.yml", tasks: 15, migration: "✅ Converted"},
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{playbook: "database.yml", tasks: 8, migration: "✅ Converted"},
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{playbook: "monitoring.yml", tasks: 12, migration: "✅ Converted"},
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{playbook: "security.yml", tasks: 6, migration: "🟡 Needs review"}
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]
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print "\n📋 Ansible Playbook Analysis:"
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$ansible_analysis | table
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print "\n6. Side-by-side migration approach:"
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let migration_strategy = [
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{phase: "Phase 1", duration: "Week 1-2", approach: "Import + validate", risk: "None"},
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{phase: "Phase 2", duration: "Week 3-4", approach: "Run in parallel", risk: "Low"},
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{phase: "Phase 3", duration: "Week 5-6", approach: "Gradual cutover", risk: "Low"},
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{phase: "Phase 4", duration: "Week 7-8", approach: "Full migration", risk: "Medium"}
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]
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$migration_strategy | table
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print "\n7. Migration validation:"
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run-external "provisioning" migrate validate --source terraform --target kcl --dry-run
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print "\n8. Resource drift detection:"
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let drift_analysis = [
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{resource: "web-server-01", terraform: "t3.medium", actual: "t3.medium", status: "✅ No drift"},
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{resource: "web-server-02", terraform: "t3.medium", actual: "t3.large", status: "⚠️ Drift detected"},
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{resource: "database-01", terraform: "db.t3.micro", actual: "db.t3.micro", status: "✅ No drift"},
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{resource: "load-balancer", terraform: "ALB", actual: "ALB", status: "✅ No drift"}
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]
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$drift_analysis | table
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print "\n9. Benefits after migration:"
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let migration_benefits = [
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{metric: "Configuration errors", before: "15/month", after: "2/month", improvement: "87% reduction"},
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{metric: "Deployment time", before: "45 minutes", after: "8 minutes", improvement: "82% faster"},
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{metric: "Resource consistency", before: "78%", after: "99%", improvement: "+21%"},
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{metric: "Team productivity", before: "Baseline", after: "2.5x", improvement: "150% increase"}
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]
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$migration_benefits | table
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print "\n10. Cost impact of migration:"
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let cost_impact = [
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{category: "Tool licensing", before: "$2,400/year", after: "$0/year", savings: "$2,400"},
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{category: "Training", before: "$8,000", after: "$3,000", savings: "$5,000"},
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{category: "Maintenance", before: "$15,000/year", after: "$6,000/year", savings: "$9,000"},
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{category: "Downtime costs", before: "$25,000/year", after: "$5,000/year", savings: "$20,000"}
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]
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$cost_impact | table
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print "\n11. Rollback strategy:"
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run-external "provisioning" migrate rollback-plan --checkpoint "pre-migration" --emergency-only
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print "\n🛡️ Rollback Plan:"
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print "• Terraform state backed up automatically"
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print "• Ansible playbooks preserved"
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print "• 1-command rollback available for 90 days"
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print "• Zero-downtime rollback tested and verified"
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print "\n12. Team training and onboarding:"
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let training_plan = [
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{role: "DevOps Engineers", duration: "4 hours", focus: "CLI and automation"},
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{role: "Developers", duration: "2 hours", focus: "Basic provisioning"},
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{role: "SREs", duration: "6 hours", focus: "Advanced troubleshooting"},
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{role: "Managers", duration: "1 hour", focus: "Benefits and ROI"}
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]
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$training_plan | table
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print "\n✅ Migration Results:"
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print "📈 Success Rate: 95% of resources migrated automatically"
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print "⏱️ Migration Time: 2-4 weeks vs 6+ months traditional"
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print "🛡️ Risk Level: Low (reversible, parallel execution)"
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print "💰 Total Savings: $36,400 in first year"
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print "🚀 Team Velocity: 2.5x improvement in infrastructure changes" |