mirror of
https://github.com/enpaul/vault2vault.git
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203 lines
8.0 KiB
Markdown
203 lines
8.0 KiB
Markdown
# vault2vault
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Like
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[`ansible-vault rekey`](https://docs.ansible.com/ansible/latest/cli/ansible-vault.html#rekey)
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but works recursively on encrypted files and in-line variables
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[](https://github.com/enpaul/vault2vault/actions)
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[](https://pypi.org/project/vault2vault/)
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[](https://opensource.org/licenses/MIT)
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[](https://www.python.org)
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[](https://github.com/psf/black)
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⚠️ **This project is beta software and is under active development** ⚠️
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- [What is this?](#what-is-this)
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- [Installing](#installing)
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- [Usage](#usage)
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- [Recovering from a failed migration](#recovering-from-a-failed-migration)
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- [Roadmap](#roadmap)
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- [Developing](#developer-documentation)
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## What is this?
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If you use [Ansible Vault](https://docs.ansible.com/ansible/latest/user_guide/vault.html)
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then you may have encountered the problem of needing to roll your vault password. Maybe
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you found it written down on a sticky note, maybe a coworker who knows it left the
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company, maybe you accidentally typed it into Slack when you thought the focus was on your
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terminal. Whatever, these things happen.
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The built-in tool Ansible provides,
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[`ansible-vault rekey`](https://docs.ansible.com/ansible/latest/cli/ansible-vault.html#rekey),
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suffers from two main drawbacks: first, it only works on vault encrypted files and not on
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vault encrypted YAML data; and second, it only works on a single vault encrypted file at
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a time. To rekey everything in a large project you'd need to write a script that
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recursively goes through every file and rekeys every encrypted file and YAML variable all
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at once.
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This is that script.
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## Installing
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If you're using [Poetry](https://python-poetry.org/) or
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[Pipenv](https://pipenv.pypa.io/en/latest/) to manage your Ansible runtime environment,
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you can just add `vault2vault` to that same environment:
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```
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# using poetry
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poetry add vault2vault --dev
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# using pipenv
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pipenv install vault2vault
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```
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If you're using Ansible from your system package manager, it's probably easier to just
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install `vault2vault` using [PipX](https://pypa.github.io/pipx/) and the `ansible` extra:
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```
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pipx install vault2vault[ansible]
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```
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> Note: vault2vault requires an Ansible installation to function. If you are installing to a
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> standalone virtual environment (like with PipX) then you must install it with the
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> `ansible` extra to ensure a version of Ansible is available to the application.\*\*
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## Usage
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> Note: the full command reference is available by running `vault2vault --help`
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Vault2Vault works with files in any arbitrary directory structures, so there is no need to
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have your Ansible project(s) structured in a specific way for the tool to work. The
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simplest usage of Vault2Vault is by passing the path to your Ansible project directory to
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the command:
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```bash
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vault2vault ./my-ansible-project/
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```
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The tool will prompt for the current vault password and the new vault password and then
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process every file under the provided path. You can also specify multiple paths and
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they'll all be processed together:
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```bash
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vault2vault \
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./my-ansible-project/playbooks/ \
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./my-ansible-project/host_vars/ \
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./my-ansible-project/group_vars/
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```
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To skip the interactive password prompts you can put the password in a file and have the
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tool read it in at runtime. The `--old-pass-file` and `--new-pass-file` parameters work
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the same way as the `--vault-password-file` option from the `ansible` command:
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```bash
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vault2vault ./my-ansible-project/ \
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--old-pass-file=./oldpass.txt \
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--new-pass-file=./newpass.txt
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```
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If you use multiple vault passwords in your project and want to roll them you'll need to
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run `vault2vault` once for each password you want to change. By default, `vault2vault`
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will fail with an error if it encounters vaulted data that it cannot decrypt with the
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provided current vault password. To change this behavior and instead just ignore any
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vaulted data that can't be decrypted (like, for example, if you have data encrypted with
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multiple vault passwords) you can pass the `--ignore-undecryptable` flag to turn the
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errors into warnings.
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> Please report any bugs or issues you encounter on
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> [Github](https://github.com/enpaul/vault2vault/issues).
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### Recovering from a failed migration
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This tool is still pretty early in it's development, and to be honest it hooks into
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Ansible's functionality in some fragile ways. I've tested as best I can to ensure it
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covers as many edge cases as possible, but there is still the chance that you might get
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partway through a password migration and then have the tool fail out, leaving half of your
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data successfully rekeyed and the other half not.
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In the spirit of the
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[Unix philosophy](https://hackaday.com/2018/09/10/doing-one-thing-well-the-unix-philosophy/)
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this tool does not include any built-in way to recover from this state. However, it can
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be done very effectively using a version control tool.
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If you are using Git to track your project files then you can use the command
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`git reset --hard` to restore all files to the state of the currently checked out commit.
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This does have the side effect of erasing any other un-committed work in the repository,
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so it's recommended to always have a clean working tree when using Vault2Vault.
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If you are not using a version control system to track your project files then you can
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create a temporary Git repository to use in the event of a migration failure:
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```bash
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cd my-project/
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# Initialize the new repository
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git init
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# Add and commit all your existing files to the git tree
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git add .
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git commit -m "initial commit"
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# Run vault migrations
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vault2vault ...
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# If no recovery is necessary, delete the git repository data
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rm -rf .git
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```
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## Roadmap
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This project is considered feature complete as of the
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[0.1.1](https://github.com/enpaul/vault2vault/releases/tag/0.1.1) release. As a result the
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roadmap focuses on stability and user experience ahead of a 1.0 release.
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- [ ] Reimplement core vaulted data processing function to enable multithreading
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- [ ] Implement multithreading for performance in large environments
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- [ ] Add unit tests
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- [ ] Add integration tests
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- [ ] Redesign logging messages to improve clarity and consistency
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## Developer Documentation
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All project contributors and participants are expected to adhere to the
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[Contributor Covenant Code of Conduct, v2](CODE_OF_CONDUCT.md) ([external link](https://www.contributor-covenant.org/version/2/0/code_of_conduct/)).
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The `devel` branch has the latest (and potentially unstable) changes. The stable releases
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are tracked on [Github](https://github.com/enpaul/vault2vault/releases),
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[PyPi](https://pypi.org/project/vault2vault/#history), and in the
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[Changelog](CHANGELOG.md).
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- To report a bug, request a feature, or ask for assistance, please
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[open an issue on the Github repository](https://github.com/enpaul/vault2vault/issues/new).
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- To report a security concern or code of conduct violation, please contact the project
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author directly at **me \[at\] enp dot one**.
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- To submit an update, please
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[fork the repository](https://docs.github.com/en/enterprise/2.20/user/github/getting-started-with-github/fork-a-repo)
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and [open a pull request](https://github.com/enpaul/vault2vault/compare).
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Developing this project requires [Python 3.7+](https://www.python.org/downloads/) and
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[Poetry 1.0](https://python-poetry.org/docs/#installation) or later. GNU Make can
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optionally be used to quickly setup a local development environment, but this is not
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required.
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To setup a local development environment:
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```bash
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# Clone the repository...
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# ...over HTTPS
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git clone https://github.com/enpaul/vault2vault.git
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# ...over SSH
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git clone git@github.com:enpaul/vault2vault.git
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cd vault2vault/
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# Create and configure the local development environment...
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make dev
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# Run tests and CI locally...
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make test
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# See additional make targets
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make help
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```
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