Commit 0cca77f4 authored by Pierre Smeyers's avatar Pierre Smeyers
Browse files

Merge branch 'feat/vault-variant' into 'master'

feat: add vault variant

Closes #52

See merge request to-be-continuous/maven!106
parents 73aabbe6 a80ac306
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@@ -537,3 +537,55 @@ include:
  # Jib is implemented as an extension to Maven, and uses supporting features of the TBC Maven template
  - component: $CI_SERVER_FQDN/to-be-continuous/maven/gitlab-ci-maven-jib@4.2.0
```

## Variants

### Vault variant

This variant allows delegating your secrets management to a [Vault](https://www.vaultproject.io/) server.

#### Configuration

In order to be able to communicate with the Vault server, the variant requires the additional configuration parameters:

| Name              | Description                            | Default value     |
| ----------------- | -------------------------------------- | ----------------- |
| `TBC_VAULT_IMAGE` | The [Vault Secrets Provider](https://gitlab.com/to-be-continuous/tools/vault-secrets-provider) image to use (can be overridden) | `registry.gitlab.com/to-be-continuous/tools/vault-secrets-provider:master` |
| `VAULT_BASE_URL`  | The Vault server base API url          | **must be defined** |
| `VAULT_OIDC_AUD`  | The `aud` claim for the JWT | `$CI_SERVER_URL` |
| :lock: `VAULT_ROLE_ID`   | The [AppRole](https://www.vaultproject.io/docs/auth/approle) RoleID | _none_ |
| :lock: `VAULT_SECRET_ID` | The [AppRole](https://www.vaultproject.io/docs/auth/approle) SecretID | _none_ |

By default, the variant will authentifacte using a [JWT ID token](https://docs.gitlab.com/ee/ci/secrets/id_token_authentication.html). To use [AppRole](https://www.vaultproject.io/docs/auth/approle) instead the `VAULT_ROLE_ID` and `VAULT_SECRET_ID` should be defined as secret project variables.

#### Usage

Then you may retrieve any of your secret(s) from Vault using the following syntax:

```
@url@http://vault-secrets-provider/api/secrets/{secret_path}?field={field}
```

With:

| Name                             | Description                            |
| -------------------------------- | -------------------------------------- |
| `secret_path` (_path parameter_) | this is your secret location in the Vault server |
| `field` (_query parameter_)      | parameter to access a single basic field from the secret JSON payload |

#### Example

```yaml
include:
  # main template
  - component: $CI_SERVER_FQDN/to-be-continuous/maven/gitlab-ci-maven@4.2.0
  # Vault variant
  - component: $CI_SERVER_FQDN/to-be-continuous/maven/gitlab-ci-maven-vault@4.2.0

variables:
    # Vault configuration
    VAULT_OIDC_AUD: "https://vault.acme.host"
    VAULT_BASE_URL: "https://vault.acme.host/v1"
    # Secret managed by Vault
    SONAR_PASSWORD: "@url@http://vault-secrets-provider/api/secrets/sonar?field=password"
```
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@@ -288,6 +288,39 @@
          "description": "Additional [`skopeo copy` arguments](https://github.com/containers/skopeo/blob/master/docs/skopeo-copy.1.md#options)"
        }
      ]
    },
    {
      "id": "vault",
      "name": "Vault",
      "description": "Retrieve secrets from a [Vault](https://www.vaultproject.io/) server",
      "template_path": "templates/gitlab-ci-maven-vault.yml",
      "variables": [
        {
          "name": "TBC_VAULT_IMAGE",
          "description": "The [Vault Secrets Provider](https://gitlab.com/to-be-continuous/tools/vault-secrets-provider) image to use",
          "default": "registry.gitlab.com/to-be-continuous/tools/vault-secrets-provider:master",
          "advanced": true
        },
        {
          "name": "VAULT_BASE_URL",
          "description": "The Vault server base API url"
        },
        {
          "name": "VAULT_OIDC_AUD",
          "description": "The `aud` claim for the JWT",
          "default": "$CI_SERVER_URL"
        },
        {
          "name": "VAULT_ROLE_ID",
          "description": "The [AppRole](https://www.vaultproject.io/docs/auth/approle) RoleID",
          "secret": true
        },
        {
          "name": "VAULT_SECRET_ID",
          "description": "The [AppRole](https://www.vaultproject.io/docs/auth/approle) SecretID",
          "secret": true
        }
      ]
    }
  ]
}
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# =====================================================================================================================
# === Vault template variant
# =====================================================================================================================
spec:
  inputs:
    vault-base-url:
      description: The Vault server base API url
      default: ''
    vault-oidc-aud:
      description: The `aud` claim for the JWT
      default: $CI_SERVER_URL
---
variables:
  # variabilized vault-secrets-provider image
  TBC_VAULT_IMAGE: registry.gitlab.com/to-be-continuous/tools/vault-secrets-provider:latest
  # variables have to be explicitly declared in the YAML to be exported to the service
  VAULT_ROLE_ID: "$VAULT_ROLE_ID"
  VAULT_SECRET_ID: "$VAULT_SECRET_ID"
  VAULT_OIDC_AUD: $[[ inputs.vault-oidc-aud ]]
  VAULT_BASE_URL: $[[ inputs.vault-base-url ]]

.mvn-base:
  services:
    - name: "$TBC_TRACKING_IMAGE"
      command: ["--service", "maven", "4.2.0"]
    - name: "$TBC_VAULT_IMAGE"
      alias: "vault-secrets-provider"
  variables:
    VAULT_JWT_TOKEN: "$VAULT_JWT_TOKEN"
  id_tokens:
    VAULT_JWT_TOKEN:
      aud: "$VAULT_OIDC_AUD"