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Add kubernetes auth method #202

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atheiman wants to merge 2 commits into from
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Add kubernetes auth method #202

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c480f4b
Add kubernetes auth method
ls-brentsmith Apr 27, 2018
5219a2b
tried to add a spec
atheiman Jun 7, 2019
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35 changes: 35 additions & 0 deletions lib/vault/api/auth.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,41 @@ def gcp(role, jwt, path = 'gcp')
return secret
end

# Authenticate via the kubernetes authentication method. If authentication is
# successful, the resulting token will be stored on the client and used
# for future requests.
#
# @example
# Vault.auth.kubernetes("default", "/var/run/secrets/kubernetes.io/serviceaccount/token")
# #=> #<Vault::Secret lease_id="">
#
# @param [String] role
# @param [String] service_account_path optional
# Path on filesystem of service account token secret.
# @param [String] route optional
#
# @return [Secret]
def kubernetes(role, service_account_path = nil, route = nil)
route ||= '/v1/auth/kubernetes/login'
service_account_path ||=
'/var/run/secrets/kubernetes.io/serviceaccount/token'

payload = {
role: role,
jwt: File.read(service_account_path)
}

json = client.post(
route,
JSON.fast_generate(payload)
)

secret = Secret.decode(json)
client.token = secret.auth.client_token

return secret
end

# Authenticate via a TLS authentication method. If authentication is
# successful, the resulting token will be stored on the client and used
# for future requests.
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17 changes: 16 additions & 1 deletion spec/unit/auth_spec.rb
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Expand Up @@ -2,7 +2,22 @@

module Vault
describe Authenticate do
let(:auth) { Authenticate.new(client: nil) }
let(:client) { double('client') }
let(:auth) { Authenticate.new(client: client) }

describe '#kubernetes' do
before do
allow(::File).to receive(:read).with(
'/var/run/secrets/kubernetes.io/serviceaccount/token'
).and_return('abc123')
end

it 'authenticates with Kubernetes Auth method' do
expect(client).to receive(:post).with('/v1/auth/kubernetes/login', '{"blah": "wrong"}')
expect(auth.kubernetes('test-role')).to eq('secret')
end
end

describe "#region_from_sts_endpoint" do
subject { auth.send(:region_from_sts_endpoint, sts_endpoint) }

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