Check whether rpm signed or not

How to check whether rpm signed or not ?


rpm -K <your rpm file>

If signed, sha1 md5 OK

If not signed, md5 NOT OK (MISSING KEYS: XYZ.. )

install vagrant-libvirt

To install vagrant-libvirt:

vagrant plugin install vagrant-libvirt


Before the above command, need to run:

yum install libxslt-devel libxml2-devel libvirt-devel \  libguestfs-tools-c ruby-devel gcc -y

OpenShift - select resources based on labels

Openshift :

Select resources based on labels:

oc get all --selector="testlabel_whateveryouhave"

Disable a specific node from scheduling in openshift

How to disable a specific node from scheduling in openshift?


root@dhcp43-231 ~]# oadm manage-node dhcp43-231  --schedulable=false
DEPRECATED: The 'oadm' command is deprecated, please use 'oc adm' instead.
NAME                                STATUS                     ROLES     AGE       VERSION
dhcp43-231   Ready,SchedulingDisabled   master    10d       v1.9.1+a0ce1bc657

[root@dhcp43-231 ~]# oc get nodes 
NAME                                STATUS                     ROLES     AGE       VERSION

dhcp43-231   Ready,SchedulingDisabled   master    10d       v1.9.1+a0ce1bc657

source: https://docs.openshift.org/latest/admin_guide/manage_nodes.html

checkout specific branch - github

git fetch upstream pull/<ID>/head:BRANCHNAME

// Where, ID the PR number


git checkout BRANCHNAME


git push upstream BRANCHNAME
// push the branch