qrkourier

Install server certificates issued by a private CA in oVirt4 Manager and Host

• generate a signing request on the system where oVirt Manager is running (the engine server)

openssl req -new -sha256 -key /etc/pki/ovirt-engine/keys/apache.key.nopass -out /tmp/engine.csr

• Submit the CSR to the issuer and wait. Or, if you are the issuer and you happen to be using FreeIPA/IdM, you may issue the certificate with ipa-admintools. For example,

aweiteka

Exporting an application from OpenShift to Kubenetes

OpenShift v3 is based on Kubernetes, adding additional objects such as builds, routes and image streams.

Metadata

Common objects or data types

• pods
• replication controllers (rc)

goldmann

alias dip="docker inspect -f '{{ .NetworkSettings.IPAddress }}'"

dssh() {
  PID=$(docker inspect --format {{.State.Pid}} $1)
  sudo /usr/bin/nsenter --target $PID --mount --uts --ipc --net --pid env -i - $(sudo cat /proc/$PID/environ | xargs -0) bash
}

drmiall() {
  docker rmi `docker images -q -f dangling=true`
}