Bump github.com/hashicorp/vault/sdk from 0.5.3 to 0.8.1

[dependabot[bot]]

Bumps github.com/hashicorp/vault/sdk from 0.5.3 to 0.8.1.

Changelog

Sourced from github.com/hashicorp/vault/sdk's changelog.

0.8.1 (August 16th, 2017)

DEPRECATIONS/CHANGES:

• PKI Root Generation: Calling pki/root/generate when a CA cert/key already exists will now return a 204 instead of overwriting an existing root. If you want to recreate the root, first run a delete operation on pki/root (requires sudo capability), then generate it again.

FEATURES:

• Oracle Secret Backend: There is now an external plugin to support leased credentials for Oracle databases (distributed separately).
• GCP IAM Auth Backend: There is now an authentication backend that allows using GCP IAM credentials to retrieve Vault tokens. This is available as both a plugin and built-in to Vault.
• PingID Push Support for Path-Based MFA (Enterprise): PingID Push can now be used for MFA with the new path-based MFA introduced in Vault Enterprise 0.8.
• Permitted DNS Domains Support in PKI: The pki backend now supports specifying permitted DNS domains for CA certificates, allowing you to narrowly scope the set of domains for which a CA can issue or sign child certificates.
• Plugin Backend Reload Endpoint: Plugin backends can now be triggered to reload using the sys/plugins/reload/backend endpoint and providing either the plugin name or the mounts to reload.
• Self-Reloading Plugins: The plugin system will now attempt to reload a crashed or stopped plugin, once per request.

IMPROVEMENTS:

• auth/approle: Allow array input for policies in addition to comma-delimited strings [GH-3163]
• plugins: Send logs through Vault's logger rather than stdout [GH-3142]
• secret/pki: Add pki/root delete operation [GH-3165]
• secret/pki: Don't overwrite an existing root cert/key when calling generate [GH-3165]

BUG FIXES:

• aws: Don't prefer a nil HTTP client over an existing one [GH-3159]
• core: If there is an error when checking for create/update existence, return 500 instead of 400 [GH-3162]
• secret/database: Avoid creating usernames that are too long for legacy MySQL [GH-3138]

0.8.0 (August 9th, 2017)

SECURITY:

... (truncated)

Commits

• 8d76a41 Cut version 0.8.1
• 7c6e18d plugins/backend/reload -> plugins/reload/backend (#3186)
• 527e234 Fix plugin docs (#3185)
• 6c32b7d Bump version for release
• c14d445 Bump go-plugin dep
• 5d37bd5 Remove erroneous flag from hmac docs
• a7f3f40 * Add ability to specify a plugin dir in dev mode (#3184)
• 27c2386 Add gcp auth backend (#3183)
• 16863db changelog++
• c8388a9 Add plugin auto-reload capability (#3171)
• Additional commits viewable in compare view

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