Month: April 2022

rysnc –partial , -P is awesome


[home@home Downloads]$ time rsync -parvP ubuntu-20.04.4-live-server-amd64.iso [email protected]:/tmp
sending incremental file list
ubuntu-20.04.4-live-server-amd64.iso
    646,053,888  48%   11.15MB/s    0:01:00  ^C
rsync error: unexplained error (code 255) at rsync.c(703) [sender=3.2.3]

real	0m56.958s
user	0m6.159s
sys	0m2.564s





[home@home Downloads]$ time rsync -parvP ubuntu-20.04.4-live-server-amd64.iso [email protected]:/tmp
sending incremental file list
ubuntu-20.04.4-live-server-amd64.iso
  1,331,691,520 100%   20.02MB/s    0:01:03 (xfr#1, to-chk=0/1)

sent 658,982,006 bytes  received 178,830 bytes  9,765,345.72 bytes/sec
total size is 1,331,691,520  speedup is 2.02

real	1m6.846s
user	0m27.066s
sys	0m1.862s
[home@home Downloads]$ time rsync -parv ubuntu-20.04.4-live-server-amd64.iso [email protected]:/tmp
sending incremental file list
ubuntu-20.04.4-live-server-amd64.iso

sent 1,332,016,766 bytes  received 35 bytes  11,633,334.51 bytes/sec
total size is 1,331,691,520  speedup is 1.00

real	1m54.871s
user	0m6.400s
sys	0m3.748s

kubernetes ingress with TLS

  • Create self signed cert
openssl req \
    -new \
    -newkey rsa:4096 \
    -days 365 \
    -nodes \
    -x509 \
    -subj "/C=US/ST=Denial/L=Springfield/O=Dis/CN=example.com" \
    -keyout example.com.key \
    -out example.com.cert
  • Create k8 certificate using above cert
kubectl create secret tls example-cert \
  --key="example.com.key" \
  --cert="example.com.cert"
  • ingress.yaml file
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: "haproxy"
    haproxy.org/rewrite-target: "/"
  name: prometheus-ingress
spec:
  rules:
  - host: prometheus.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: prometheus-service
            port:
              number: 9090
 tls:
 - secretName: example-cert
   hosts:
   - prometheus.example.com