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Authentikos (αὐθεντικός)

Description

authentikos is a service used to create/refresh a Google oauth token and store the value in a Kubernetes secret.

Installation

Install using Golang:

GO111MODULE="on" go get -u istio.io/test-infra/authentikos

Install using Docker:

docker pull gcr.io/istio-testing/authentikos:latest

Usage

Run using Golang:

Ensure $GOPATH/bin is on your $PATH; or execute $GOPATH/bin/authentikos directly.

authentikos <options>

Run using Docker:

docker run gcr.io/istio-testing/authentikos:latest <options>

The following is a list of supported options for authentikos:

  -c, --creds string           Path to a JSON credentials file.
  -r, --force-refresh          Force a token refresh. Otherwise, the token will only refresh when necessary.
  -i, --interval duration      Token refresh interval [1m0s - 50m0s). (default 30m0s)
  -k, --key string             Name of secret data key. (default "token")
  -n, --namespace strings      Namespace(s) to create the secret in. (default [default])
  -s, --scopes strings         Oauth scope(s) to request for token (see: https://developers.google.com/identity/protocols/oauth2/scopes).
  -o, --secret string          Name of secret to create. (default "authentikos-token")
  -t, --template string        Template string for the token.
  -f, --template-file string   Path to a template string for the token.
  -v, --verbose                Print verbose output.

Changelog

  • 0.0.1: Initial release
  • 0.0.2: Remove --format option and add --template and --template-file options.
  • 0.0.3: Add new TimeToUnix, UnixToTime, and Parse template variable and change method signature for math template variables from (a, b time.Duration) time.Duration to (a, b int64) int64.
  • 0.0.4: Add --key option for specifying the name of the data key in the created Kubernetes secret.
  • 0.0.5: Use Sprig as the library for template functions.
  • 0.0.6: Add --force-refresh option for forcing a token refresh. If this option is omitted or false, the token will only refresh when necessary. Add --interval option for customizing the token refresh interval. If unspecified, default scopes to userinfo.email, cloud-platform, and openid.
  • 0.0.7: Add more descriptive error logging for token creation failure.
  • 0.0.8: Support displaying real expiration time in token, print md5sum of token in logs.