Activate Cloudflare protection of infrastructure

[jpraynaud]

Issue

Activate the Cloudflare protection to the snapshot archives stored on Google Cloud Storage for all the Mithril networks.

To do

• [x] Prepare migration process for data of the Mithril networks
  • [x] Implement migration for existing snapshot archives to new cloud storage bucket (via temp bucket)
  • [x] ~~Implement migration for existing snapshot archives in database artifacts~~
• [x] Backup all the networks archives:
  • [x] testing-preview
  • [x] pre-release-preview
  • [x] release-preprod
  • [x] release-mainnet
• [x] Deploy CDN features to all the networks:
  • [x] testing-preview
  • [x] pre-release-preview
  • [x] release-preprod
  • [x] release-mainnet
• [ ] Add CloudFlare verification TXT entry in DNS
  • [ ] testing-preview
  • [ ] pre-release-preview
  • [ ] release-preprod
  • [ ] release-mainnet
• [ ] Configure all the Google Cloud Storage buckets sub-domain in Cloudflare via CNAME (IT Ticket to create):
  • [ ] testing-preview
  • [ ] pre-release-preview
  • [ ] release-preprod
  • [ ] release-mainnet
• [ ] Activate Cloudflare in the Mithril networks:
  • [ ] testing-preview
  • [ ] pre-release-preview
  • [ ] release-preprod
  • [ ] release-mainnet

Parent Issue

#767

[roynakakawa]

ITCR Ticket: https://input-output.atlassian.net/servicedesk/customer/portal/2/ITCR-8455?created=true