docker

grep docker log

# container is logging to stderr, piping works only for stdout
docker logs 4d2dfb460603 2>&1 | grep --color -A 10 <YOUR_TARGET>

docker machine

switch back to local docker env

eval "$(docker-machine env -u)"

docker registry

custome docker registry: certificate has expired or is not yet valid

Error response from daemon: Get https://hub.naviwe.com/v2/: x509: certificate has expired or is not yet valid

linux:

# /etc/docker/daemon.json
{
    "insecure-registries" : [ "hostname.cloudapp.net:5000" ]
}

mac: Add your own docker registry to insecure-registries in docker Mac app settings