File size: 5,042 Bytes
a42b16d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 |
"""Rollback strategies and disaster recovery."""
from __future__ import annotations
from typing import Any, Dict, List, Optional
class RollbackManager:
"""Manages rollback strategies and disaster recovery plans."""
def generate_rollback_plan(
self,
platform: str,
framework: str,
deployment_type: str = "blue_green"
) -> Dict[str, Any]:
"""Generate rollback plan for deployment."""
rollback_strategies = {
"vercel": {
"strategy": "instant_rollback",
"steps": [
"1. Go to Vercel dashboard",
"2. Select previous deployment",
"3. Click 'Promote to Production'",
"4. Rollback completes in < 1 minute"
],
"time_to_rollback": "< 1 minute",
"data_loss_risk": "None"
},
"netlify": {
"strategy": "deploy_rollback",
"steps": [
"1. Go to Netlify dashboard",
"2. Navigate to Deploys",
"3. Select previous successful deploy",
"4. Click 'Publish deploy'",
"5. Rollback completes in < 2 minutes"
],
"time_to_rollback": "< 2 minutes",
"data_loss_risk": "None"
},
"kubernetes": {
"strategy": "blue_green",
"steps": [
"1. Keep previous deployment running",
"2. Switch traffic to previous version",
"3. Scale down new deployment",
"4. Rollback completes in < 5 minutes"
],
"time_to_rollback": "< 5 minutes",
"data_loss_risk": "Low (if database migrations involved)"
},
"docker": {
"strategy": "container_rollback",
"steps": [
"1. Stop current container",
"2. Start previous container version",
"3. Update load balancer",
"4. Rollback completes in < 3 minutes"
],
"time_to_rollback": "< 3 minutes",
"data_loss_risk": "Low"
},
}
strategy = rollback_strategies.get(platform.lower(), {
"strategy": "manual_rollback",
"steps": [
"1. Identify previous stable version",
"2. Redeploy previous version",
"3. Verify functionality",
"4. Monitor for issues"
],
"time_to_rollback": "5-10 minutes",
"data_loss_risk": "Medium"
})
return {
"platform": platform,
"framework": framework,
"strategy": strategy["strategy"],
"steps": strategy["steps"],
"time_to_rollback": strategy["time_to_rollback"],
"data_loss_risk": strategy["data_loss_risk"],
"pre_rollback_checklist": self._get_pre_rollback_checklist(),
"post_rollback_checklist": self._get_post_rollback_checklist()
}
def _get_pre_rollback_checklist(self) -> List[str]:
"""Get pre-rollback checklist."""
return [
"Identify the issue causing rollback",
"Document current deployment version",
"Verify previous stable version is available",
"Notify team about rollback",
"Backup current database (if applicable)",
"Check for database migrations that need reversal"
]
def _get_post_rollback_checklist(self) -> List[str]:
"""Get post-rollback checklist."""
return [
"Verify application is functioning correctly",
"Monitor error rates and performance",
"Check database integrity",
"Notify team of successful rollback",
"Document rollback reason and lessons learned",
"Plan fix for the issue that caused rollback"
]
def generate_disaster_recovery_plan(self, platform: str) -> Dict[str, Any]:
"""Generate disaster recovery plan."""
return {
"platform": platform,
"recovery_time_objective": "15-30 minutes",
"recovery_point_objective": "Last successful deployment",
"backup_strategy": "Automated backups before each deployment",
"monitoring": "Set up alerts for critical failures",
"communication_plan": "Notify stakeholders within 5 minutes of incident",
"steps": [
"1. Assess the severity of the incident",
"2. Execute rollback plan",
"3. Verify system stability",
"4. Investigate root cause",
"5. Implement fix",
"6. Re-deploy with fix",
"7. Document incident and improvements"
]
}
|