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STDOUT from containers in Ubuntu 16.04

(Oceanrising) #1

Hi all, we migrated a Docker host server from Ubuntu 14.04 to 16.04. No changes in the container configurations or host Docker configurations.

We expect to see the stdout from the container in the host’s syslog. This setup works ok on the Ubuntu 14.04 but not with the 16.04. Our CI/CD processes use Ansible to deploy the containers and its health-check is waiting for certain output from the scripts inside the containers.

Where can we find the stdout ? Or, what would be a compatible alternative for the time being until we have migrated all hosts to Ubuntu 16?

Working host version: Ubuntu 14.04.5 LTS
Not-working host version: Ubuntu 16.04.4 LTS
Docker version: 17.05.0-ce

(Oceanrising) #2

Solved: The rsyslogd configuration had changed and the UDP support was disabled after migration.