Team, I have a working command but cannot figure out the syntax to run from pod.yaml. any hint?
apiVersion: v1
kind: Pod
metadata:
name: count_mounts
labels:
purpose: demonstrate_command
spec:
containers:
- name: command-demo-container
image: debian
command: ["/bin/bash"]
args: ["-c", echo $HOSTNAME && mount | grep -Ec '/dev/sd.*\<csi' | awk '$0 <= 64 { print "Mounts are less than 64, that is found", $0 ;} $0 > 64 { print "Mounts are more than 64", $0 ;}']
restartPolicy: OnFailureoutput:
> here I enclosed whole command in double quotes
error: error parsing /home/pod.yaml: error converting YAML to JSON: yaml: line 14: found unknown escape character
> here I left whole command as is
error: error parsing /home/pod.yaml: error converting YAML to JSON: yaml: line 16: found unexpected end of streamexpected output:
node123
Mounts are less than 64, that is found 0on local system without pod
└─ $ ▶ echo $HOSTNAME && mount | grep -Ec '/dev/sd.*\<csi' | awk '$0 <= 64 { print "Mounts are less than 64, that is found", $0 ;} $0 > 64 { print "Mounts are more than 64", $0 ;}'
node123
Mounts are less than 64, that is found 0I got around with this with below approach but would definitely like to know how to use nested quotes?
apiVersion: v1
kind: Pod
metadata:
name: command-demo
labels:
purpose: demonstrate-command
spec:
containers:
- name: command-demo-container
image: debian
command: ["/bin/bash", "-c"]
args:
- |
echo $HOSTNAME && mount | grep -Ec '/dev/sd.*\<csi' | awk '$0 <= 64 { print "Mounts are less than 64, that is found", $0 ;} $0 > 64 { print "Mounts are more than 64", $0 ;}'
restartPolicy: OnFailureresulted output:
kubectl logs pod/command-demo
node123
Mounts are less than 64, that is found 0