bifrost: missing host vars on deprovision

Sometimes there's a case where Bifrost Ironic database is restored from backup and /etc/kolla/bifrost/inventory is not populated - in such cases deprovision will fail.

TASK [Check the ironic node's initial provision state] **********************************************************************************************************************************
task path: /home/stack/michal/venvs/kayobe/share/kayobe/ansible/overcloud-deprovision.yml:34
Tuesday 10 October 2023 05:53:51 +0000 (0:00:00.086) 0:00:00.086 *******
Using module file /home/stack/michal/venvs/kayobe/lib64/python3.9/site-packages/ansible/modules/command.py
Pipelining is enabled.
<192.168.5.254> ESTABLISH SSH CONNECTION FOR USER: stack
<192.168.5.254> SSH: EXEC ssh -vvv -C -o ControlMaster=auto -o ControlPersist=60s -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="stack"' -o ConnectTimeout=10 -o 'ControlPath="/home/stack/.ansible/cp/127a331874"' 192.168.5.254 '/bin/sh -c '"'"'/opt/kayobe/venvs/kayobe/bin/python && sleep 0'"'"''
<192.168.5.254> (0, b'\n{"changed": true, "stdout": "", "stderr": "[WARNING]: Unable to parse /etc/bifrost/inventory as an inventory source\\n[WARNING]: No inventory was parsed, only implicit localhost is available\\n[WARNING]: provided hosts list is empty, only localhost is available. Note that\\nthe implicit localhost does not match \'all\'\\n[WARNING]: Could not match supplied host pattern, ignoring: baremetal\\n[WARNING]: Could not match supplied host pattern, ignoring: cct1", "rc": 0, "cmd": ["docker", "exec", "bifrost_deploy", "bash", "-c", " export OS_CLOUD=bifrost && export OS_BAREMETAL_API_VERSION=1.34 && export BIFROST_INVENTORY_SOURCE=ironic && export BIFROST_NODE_NAMES=\\"cct1\\" && ansible baremetal --connection local --inventory /etc/bifrost/inventory/ -e @/etc/bifrost/bifrost.yml -e @/etc/bifrost/dib.yml --limit cct1 -m command -a \\"baremetal node show {{ inventory_hostname }} -f value -c provision_state\\""], "start": "2023-10-10 05:53:52.306489", "end": "2023-10-10 05:53:52.986675", "delta": "0:00:00.680186", "msg": "", "invocation": {"module_args": {"_raw_params": "docker exec bifrost_deploy bash -c \' export OS_CLOUD=bifrost && export OS_BAREMETAL_API_VERSION=1.34 && export BIFROST_INVENTORY_SOURCE=ironic && export BIFROST_NODE_NAMES=\\"cct1\\" && ansible baremetal --connection local --inventory /etc/bifrost/inventory/ -e @/etc/bifrost/bifrost.yml -e @/etc/bifrost/dib.yml --limit cct1 -m command -a \\"baremetal node show {{ inventory_hostname }} -f value -c provision_state\\"\'\\n", "_uses_shell": false, "warn": false, "stdin_add_newline": true, "strip_empty_ends": true, "argv": null, "chdir": null, "executable": null, "creates": null, "removes": null, "stdin": null}}}\n', b"OpenSSH_8.7p1, OpenSSL 3.0.7 1 Nov 2022\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug3: /etc/ssh/ssh_config line 55: Including file /etc/ssh/ssh_config.d/50-redhat.conf depth 0\r\ndebug1: Reading configuration data /etc/ssh/ssh_config.d/50-redhat.conf\r\ndebug2: checking match for 'final all' host 192.168.5.254 originally 192.168.5.254\r\ndebug3: /etc/ssh/ssh_config.d/50-redhat.conf line 3: not matched 'final'\r\ndebug2: match not found\r\ndebug3: /etc/ssh/ssh_config.d/50-redhat.conf line 5: Including file /etc/crypto-policies/back-ends/openssh.config depth 1 (parse only)\r\ndebug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config\r\ndebug3: gss kex names ok: [gss-curve25519-sha256-,gss-nistp256-sha256-,gss-group14-sha256-,gss-group16-sha512-]\r\ndebug3: kex names ok: [curve25519-sha256,<email address hidden>,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512]\r\ndebug1: configuration requests final Match pass\r\ndebug2: resolve_canonicalize: hostname 192.168.5.254 is address\r\ndebug1: re-parsing configuration\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug3: /etc/ssh/ssh_config line 55: Including file /etc/ssh/ssh_config.d/50-redhat.conf depth 0\r\ndebug1: Reading configuration data /etc/ssh/ssh_config.d/50-redhat.conf\r\ndebug2: checking match for 'final all' host 192.168.5.254 originally 192.168.5.254\r\ndebug3: /etc/ssh/ssh_config.d/50-redhat.conf line 3: matched 'final'\r\ndebug2: match found\r\ndebug3: /etc/ssh/ssh_config.d/50-redhat.conf line 5: Including file /etc/crypto-policies/back-ends/openssh.config depth 1\r\ndebug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config\r\ndebug3: gss kex names ok: [gss-curve25519-sha256-,gss-nistp256-sha256-,gss-group14-sha256-,gss-group16-sha512-]\r\ndebug3: kex names ok: [curve25519-sha256,<email address hidden>,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512]\r\ndebug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/stack/.ssh/known_hosts'\r\ndebug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/stack/.ssh/known_hosts2'\r\ndebug1: auto-mux: Trying existing master\r\ndebug2: fd 3 setting O_NONBLOCK\r\ndebug2: mux_client_hello_exchange: master version 4\r\ndebug3: mux_client_forwards: request forwardings: 0 local, 0 remote\r\ndebug3: mux_client_request_session: entering\r\ndebug3: mux_client_request_alive: entering\r\ndebug3: mux_client_request_alive: done pid = 72020\r\ndebug3: mux_client_request_session: session request sent\r\ndebug1: mux_client_request_session: master session id: 2\r\ndebug3: mux_client_read_packet: read header failed: Broken pipe\r\ndebug2: Received exit status from master 0\r\n")
ok: [cct1 -> cct0-seed({{ hostvars[seed_host].ansible_host | default(seed_host) }})] => changed=false
  cmd:
  - docker
  - exec
  - bifrost_deploy
  - bash
  - -c
  - ' export OS_CLOUD=bifrost && export OS_BAREMETAL_API_VERSION=1.34 && export BIFROST_INVENTORY_SOURCE=ironic && export BIFROST_NODE_NAMES="cct1" && ansible baremetal --connection local --inventory /etc/bifrost/inventory/ -e @/etc/bifrost/bifrost.yml -e @/etc/bifrost/dib.yml --limit cct1 -m command -a "baremetal node show {{ inventory_hostname }} -f value -c provision_state"'
  delta: '0:00:00.680186'
  end: '2023-10-10 05:53:52.986675'
  invocation:
    module_args:
      _raw_params: |-
        docker exec bifrost_deploy bash -c ' export OS_CLOUD=bifrost && export OS_BAREMETAL_API_VERSION=1.34 && export BIFROST_INVENTORY_SOURCE=ironic && export BIFROST_NODE_NAMES="cct1" && ansible baremetal --connection local --inventory /etc/bifrost/inventory/ -e @/etc/bifrost/bifrost.yml -e @/etc/bifrost/dib.yml --limit cct1 -m command -a "baremetal node show {{ inventory_hostname }} -f value -c provision_state"'
      _uses_shell: false
      argv: null
      chdir: null
      creates: null
      executable: null
      removes: null
      stdin: null
      stdin_add_newline: true
      strip_empty_ends: true
      warn: false
  msg: ''
  rc: 0
  start: '2023-10-10 05:53:52.306489'
  stderr: |-