Reduce azure cost: change workers to 'b2ms' vms (current 'ds2v2' underused and costly)
Plan:
- [x] Reasoning: https://hedgedoc.softwareheritage.org/0_eK1R3iSFmMWxwHDQfqOw?edit
- [x] Provision vault-worker[01-02] as b2ms (terraform)
- [x] Decomission worker13
- [ ] check vault worker are doing their job [1]
- [ ] Decomission worker[11-12]
- [ ] Adapt puppet manifest to the fqdn changes ^ and deploy
- [ ] Provision indexer-worker[01-06] as b2ms (terraform)
- [ ] Check everything is fine ^
- [ ] Decomission remaining ds2v2 worker[01-13]
Note:
- This talks about `worker*.euwest.azure` nodes
- Decomission is deleting the node then remove references to it within puppet master
[1]
```
Jul 18 14:45:59 vault-worker01 python3[2648]: [2022-07-18 14:45:59,239: INFO/MainProcess] vault_cooker@vault-worker01.euwest.azure.internal.softwareheritage.org ready.
Jul 18 14:58:49 vault-worker01 python3[2648]: [2022-07-18 14:58:49,852: INFO/MainProcess] Received task: swh.vault.cooking_tasks.SWHCookingTask[a3c95ae7-4256-4231-bca7-d3224a9149ce]
Jul 18 14:58:54 vault-worker01 python3[2670]: [2022-07-18 14:58:54,821: INFO/ForkPoolWorker-16] Task swh.vault.cooking_tasks.SWHCookingTask[a3c95ae7-4256-4231-bca7-d3224a9149ce] succeeded in 4.852631129999963s: None
```