I'm trying to install OpenEdx Devstack following the instruction mentioned here http://edx.readthedocs.io/projects/edx-installing-configuring-and-running/en/latest/installation/devstack/install_devstack.html and OPENEDX_RELEASE="open-release/eucalyptus.3"
I'm facing below issue
TASK: [elasticsearch | Install Elasticsearch repo key] ************************
==> default: failed: [localhost] => {"cmd": "apt-key adv --keyserver ha.pool.sks-keyservers.net --recv 36095ACC8548582C1A2699A9D27D666CD88E42B4", "failed": true, "rc": 2} ==> default: stderr: gpg: requesting key D88E42B4 from hkp server ha.pool.sks-keyservers.net
==> default: gpg: keyserver timed out
==> default: gpg: keyserver receive failed: keyserver error
==> default: stdout: Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.y5UWlpBXXc --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver ha.pool.sks-keyservers.net --recv 36095ACC8548582C1A2699A9D27D666CD88E42B4
==> default: msg: gpg: requesting key D88E42B4 from hkp server ha.pool.sks-keyservers.net
==> default: gpg: keyserver timed out
==> default: gpg: keyserver receive failed: keyserver error
==> default:
==> default: FATAL: all hosts have already failed -- aborting
I'm behind a corporate firewall. Any help in resolving this error is appreciated.