Commit Graph

2 Commits (23adc436fd3fa654fb3f5446551abb58b2de750d)

Author SHA1 Message Date
Adrian Likins 86dc3c09ac
Fix vault --ask-vault-pass with no tty (#31493)
* Fix vault --ask-vault-pass with no tty

2.4.0 added a check for isatty() that would skip setting up interactive
vault password prompts if not running on a tty.

But... getpass.getpass() will fallback to reading from stdin if
it gets that far without a tty. Since 2.4.0 skipped the interactive
prompts / getpass.getpass() in that case, it would never get a chance
to fall back to stdin.

So if 'echo $VAULT_PASSWORD| ansible-playbook --ask-vault-pass site.yml'
was ran without a tty (ie, from a jenkins job or via the vagrant
ansible provisioner) the 2.4 behavior was different than 2.3. 2.4
would never read the password from stdin, resulting in a vault password
error like:

        ERROR! Attempting to decrypt but no vault secrets found

Fix is just to always call the interactive password prompts based
on getpass.getpass() on --ask-vault-pass or --vault-id @prompt and
let getpass sort it out.

* up test_prompt_no_tty to expect prompt with no tty

We do call the PromptSecret class if there is no tty, but
we are back to expecting it to read from stdin in that case.

* Fix logic for when to auto-prompt vault pass

If --ask-vault-pass is used, then pretty much always
prompt.

If it is not used, then prompt if there are no other
vault ids provided and 'auto_prompt==True'.

Fixes vagrant bug https://github.com/hashicorp/vagrant/issues/9033

Fixes #30993
7 years ago
Adrian Likins 934b645191 Support multiple vault passwords (#22756)
Fixes #13243

** Add --vault-id to name/identify multiple vault passwords

Use --vault-id to indicate id and path/type

 --vault-id=prompt  # prompt for default vault id password
 --vault-id=myorg@prompt  # prompt for a vault_id named 'myorg'
 --vault-id=a_password_file  # load ./a_password_file for default id
 --vault-id=myorg@a_password_file # load file for 'myorg' vault id

vault_id's are created implicitly for existing --vault-password-file
and --ask-vault-pass options.

Vault ids are just for UX purposes and bookkeeping. Only the vault
payload and the password bytestring is needed to decrypt a
vault blob.

Replace passing password around everywhere with
a VaultSecrets object.

If we specify a vault_id, mention that in password prompts

Specifying multiple -vault-password-files will
now try each until one works

** Rev vault format in a backwards compatible way

The 1.2 vault format adds the vault_id to the header line
of the vault text. This is backwards compatible with older
versions of ansible. Old versions will just ignore it and
treat it as the default (and only) vault id.

Note: only 2.4+ supports multiple vault passwords, so while
earlier ansible versions can read the vault-1.2 format, it
does not make them magically support multiple vault passwords.

use 1.1 format for 'default' vault_id

Vaulted items that need to include a vault_id will be
written in 1.2 format.

If we set a new DEFAULT_VAULT_IDENTITY, then the default will
use version 1.2

vault will only use a vault_id if one is specified. So if none
is specified and C.DEFAULT_VAULT_IDENTITY is 'default'
we use the old format.

** Changes/refactors needed to implement multiple vault passwords

raise exceptions on decrypt fail, check vault id early

split out parsing the vault plaintext envelope (with the
sha/original plaintext) to _split_plaintext_envelope()

some cli fixups for specifying multiple paths in
the unfrack_paths optparse callback

fix py3 dict.keys() 'dict_keys object is not indexable' error

pluralize cli.options.vault_password_file -> vault_password_files
pluralize cli.options.new_vault_password_file -> new_vault_password_files
pluralize cli.options.vault_id -> cli.options.vault_ids

** Add a config option (vault_id_match) to force vault id matching.

With 'vault_id_match=True' and an ansible
vault that provides a vault_id, then decryption will require
that a matching vault_id is required. (via
--vault-id=my_vault_id@password_file, for ex).

In other words, if the config option is true, then only
the vault secrets with matching vault ids are candidates for
decrypting a vault. If option is false (the default), then
all of the provided vault secrets will be selected.

If a user doesn't want all vault secrets to be tried to
decrypt any vault content, they can enable this option.

Note: The vault id used for the match is not encrypted or
cryptographically signed. It is just a label/id/nickname used
for referencing a specific vault secret.
7 years ago