kayoch1n

## README.md

      
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              February 21, 2026 03:54
                — forked from mikamboo/README.md
            
              
                Kubernetes : Create Service Account with permission for a specific namespace + Generate KUBECONFIG 
              
          
    Create KUBECONFIG limited to specific namespace


create_user_for_namespace.sh: Create $namespace-admin ServiceAccount with full access to specified namespace and get KUBECONFIG

Usage

./create-user-for-namespace YOUR_FANCY_NAMESPACE

  
## k8s-mysql-source-replica.yaml
# applied under the namespace "ms"
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mysql
spec:
  selector:
    matchLabels:
      app: mysql
  serviceName: mysql

## getifaddrs_linux.c
// gcc getifaddrs_linux.c -o getifaddrs_linux
// ./getifaddrs_linux
// https://stackoverflow.com/a/12878352

#include <stdlib.h>     //exit()
#include <stdio.h>      //printf(),perror()
#include <string.h>     //memset
#include <ifaddrs.h>    //struct ifaddrs,getifaddrs()
#include <arpa/inet.h>  //INET6_ADDRSTRLEN,inet_ntop()
#include <netinet/in.h> //sockaddr_in,sockaddr_in6

## nfs_client.sh
#!/bin/sh
# https://ubuntu.com/server/docs/service-nfs

# client
# https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/4/html/reference_guide/s2-nfs-client-config-options
sudo mount 172.16.0.7:/home/ubuntu/nfsroot /opt/172-16-0-7/ -o nfsvers=2
cat /proc/mounts | grep nfsroot
cat /opt/172-16-0-7/README.md

# sudo umount /opt/172-16-0-7/
	# applied under the namespace "ms"
	apiVersion: apps/v1
	kind: StatefulSet
	metadata:
	name: mysql
	spec:
	selector:
	matchLabels:
	app: mysql
	serviceName: mysql
	// gcc getifaddrs_linux.c -o getifaddrs_linux
	// ./getifaddrs_linux
	// https://stackoverflow.com/a/12878352

	#include <stdlib.h> //exit()
	#include <stdio.h> //printf(),perror()
	#include <string.h> //memset
	#include <ifaddrs.h> //struct ifaddrs,getifaddrs()
	#include <arpa/inet.h> //INET6_ADDRSTRLEN,inet_ntop()
	#include <netinet/in.h> //sockaddr_in,sockaddr_in6
	#!/bin/sh
	# https://ubuntu.com/server/docs/service-nfs

	# client
	# https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/4/html/reference_guide/s2-nfs-client-config-options
	sudo mount 172.16.0.7:/home/ubuntu/nfsroot /opt/172-16-0-7/ -o nfsvers=2
	cat /proc/mounts \| grep nfsroot
	cat /opt/172-16-0-7/README.md

	# sudo umount /opt/172-16-0-7/