The latest version of guzzle <https://github.com/guzzle/guzzle/blob/d687700d601f8b5f19b99ffc1c0f6af835a3c7b7/src/functions.php#L160> supports the location at /etc/ca-certificates.crt. however, Guzzle 5 and below do not.
I was able to fix this in Guzzle 5 by setting the guzzle "verify" option <http://docs.guzzlephp.org/en/latest/request-options.html#verify-option> to the path to the certificates: $client->setDefaultOption('verify', '/etc/ca-certificates.crt'); -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/3e42d805-caf6-4e8f-9e44-e80d165a842e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
