Unable to Pull image from quay.io: ERROR x509: certificate signed by unknown authority

The error I get is:

Unable to Pull image from quay.io/coreos/flannel getting x509: certificate signed by unknown authority ERROR.

  • Dockerfile entrypoint script arguments in docker run
  • Docker Machine Virtual Box Driver Issue
  • Postrgesql running on coreos
  • Developing Puppet locally using Vagrant + Docker
  • Enable external network access from my docker swarm
  • CoreOS not able to login with provided username and password in cloud-config file?
  • The command I tried to execute was:

    root@Kube-agent2:~# sudo docker -H unix:///var/run/docker-bootstrap.sock run -d
    –net=host \
    –privileged \
    -v /dev/net:/dev/net \
    quay.io/coreos/flannel:${FLANNEL_VERSION} /opt/bin/flanneld \
    –ip-masq=${FLANNEL_IPMASQ} \
    –etcd-endpoints=http://${MASTER_IP}:4001 \
    –iface=${FLANNEL_IFACE}

    The error message I received was:

    Unable to find image ‘quay.io/coreos/flannel:0.5.5’ locally
    docker: Error response from daemon: Get https://quay.io/v1/_ping: x509: certificate signed by unknown authority.
    See ‘docker run –help’.
    root@Kube-agent2:~#

  • Docker compose v2 containers not finding each other (though v1 does)
  • Unable to run rabbitmq using marathon mesos
  • Committing a running docker container (with pause), then run it, what's the images internal state
  • How to install java in RancherOs
  • docker connect from container to public ip of host
  • Is it possible to create ipv4-enabled Docker Machine on Windows 10?
  • Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.