CodeCollab on GCP #

Status #

Migration downtime #

• Duration target: 3 hours
• Dates: 9-10th October

Migration steps #

1. Create regional MongoDB clusters in US, EU, SG ✅
2. Create dedicated MongoDB cluster in US ✅
3. Create Redis instance
4. Tag release commit (v0.1.0) on all repositories
   1. Need to cancel deploy job (important)
   2. Done
      1. API Gateway
      2. cc-api
      3. cc-compiler-master
      4. Editor API
      5. Share @Carl Voller
      6. Servant @Qin Guan
      7. HTML Server @Qin Guan
5. ❓ Change nameservers to Netlify ❓
6. Update Cloudflare DNS records to CNAME ghs.googlehosted.com.
   1. Everything behind the gateway, I’ll figure it out later
7. Global Cloud Run services to be planned and applied on Terraform (resource: google_cloud_run_service)
   1. API
   2. Auth
   3. LTI
8. Regional Kubernetes / Cloud Run services to be planned and applied on Terraform (resource: google_cloud_run_service)
   1. Editor API (GCR)
   2. Servant Master
   3. HTML Server
   4. Share
   5. API Gateway (GCR)
9. Set MongoDB DE, SG to readonly (start of downtime) - 2PM
   1. Took 20 minutes to dump (including op dbs)
   2. Display maintenance message
10. Update all Cloudflare DNS records to CNAME ghs.googlehosted.com. (with the period)
    1. Global Routings:
       1. codecollab.io → cc-frontend-old
       2. api.cclb.io → cc-api-gateway-prod-us
    2. Regional Routings:
       1. us.cclb.io → cc-editor-api-prod-us
       2. io.us.cclb.io → cc-compiler-master-prod-us
       3. sh.us.cclb.io → cc-share-prod-us
       4. us.cclb.me → cc-html-server-prod-us
11. Terraform apply Regional Cloud Run services domain mapping (resource: google_cloud_run_domain_mapping)
12. Upload MongoDB Regional data to regional databases
    1. Collections:
       1. sg_sharedb -> regional sg sharedb
       2. de_sharedb -> regional eu sharedb
       3. Delete all o_de_sharedb and all revisions
    2. Upload MongoDB global data to US database
       1. Collections
          1. projects
          2. projectfiles
          3. users
          4. folders