server certificate verification failed

[albertcat]

Describe the problem

The installer fails to install do-agent.

Steps to reproduce

$ curl -sSL https://repos.insights.digitalocean.com/install.sh -o /tmp/install.sh
$ sudo bash /tmp/install.sh
Cleaning up old sources...OK
Verifying machine compatibility...OK
Verifying compatibility with script...OK
Installing apt repository...
Installing gpg key...OK
W: Failed to fetch https://repos.insights.digitalocean.com/apt/do-agent/dists/main/main/binary-amd64/Packages  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

W: Failed to fetch https://repos.insights.digitalocean.com/apt/do-agent/dists/main/main/binary-i386/Packages  gnutls_handshake() failed: Decrypt error

E: Some index files failed to download. They have been ignored, or old ones used instead.

Expected behavior

We expect do-agent to be properly installed.

System Information

Distribution and version:

$ cat /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.2 LTS"

[stale]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed if no further activity occurs.

[bsnyder788]

still valid