Docker service fails to start with error "following directives are specified both as a flag and in the configuration file"

Solution Verified - Updated -

Issue

  • Docker service fails with the following error:
level=fatal msg="unable to configure the Docker daemon with file /etc/docker/daemon.json: the following directives are specified both as a flag and in the configuration file: log-driver: (from flag: journald, from file: syslog)\n"
  • Not able to start docker daemon with error
level=fatal msg="unable to configure the Docker daemon with file /etc/docker/daemon.json

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Atomic Host
  • docker

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