I have attached the Kubernetes script wherein the argument has "-c" why it is required t be provided?
apiVersion: apps/v1
kind: Deployment
metadata:
annotations:
deployment.kubernetes.io/revision: "1"
labels:
run: ngn
name: ngn
namespace: default
spec:
replicas: 1
selector:
matchLabels:
run: ngn
template:
metadata:
labels:
run: ngn
spec:
containers:
- image: nginx
imagePullPolicy: Always
name: ngn
command: ["/bin/sh"]
args: ["-c", "while true; do echo hello; sleep 10;done"]The -c you are asking here is an argument to /bin/sh, Here in your snippet you are supplying while true; do echo hello; sleep 10;done to /bin/sh as an argument.
-c Read commands from the command_string operand instead of from the standard input. Special parameter 0 will be set from the
command_name operand and the positional parameters ($1, $2, etc.) set from the remaining argument operands.