Comment 2 for bug 1978542

I hit this issue when I deployed openstack ussuri in my lab.

nova-compute 21.2.4 waiting 1/2 nova-compute ussuri/stable 669 no Incomplete relations: vault
vault 1.7.9 error 3 vault 1.7/stable 107 no hook failed: "secrets-relation-changed"

I have set encrypt to true in nova-compute.

$ juju config nova-compute encrypt
true

So it requires a relation with vault.

vault:secrets nova-compute:secrets-storage vault-kv regular

However there is no ingress-address in relation data, it has access-address only.

$ juju show-unit vault/6
......
  - relation-id: 118
    endpoint: secrets
    related-endpoint: secrets-storage
    application-data: {}
    related-units:
      nova-compute/4:
        in-scope: true
        data:
          access_address: 192.168.1.87
          hostname: helped-orca
          isolated: "True"
          secret_backend: charm-vaultlocker