Sunday, February 16, 2020
Mi curso en udemy!
Con gran alegría, les comento que he publicado mi curso de dockers, openshift y redhat en udemy!
Wednesday, June 19, 2019
MYSQL persistente con NFS
1) Lo primero, tratamos de crear un yaml de mentira,
kubectl run --image=mysql --dry-run -o yaml > mysql.yml
total, el que vamos a pegar, ya tiene todo resuelto. Nos fatla ver las diferencias. Para esto, como queremos que sea persistente, lo vamos a hacer via NFS, corriendo en el master.
Lo que necesitamos es:
A) Crear el PVC
B) Crear EL PV
C) Crear el MYSQL
vamos por el A
apiVersion: v1
kind: PersistentVolume
metadata:
name: lab-vol
spec:
capacity:
storage: 10Gi
volumeMode: Filesystem
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Recycle
nfs:
path: /var/nfs/general
server: qqmelo1c.mylabserver.com
readOnly: false
kubectl run --image=mysql --dry-run -o yaml > mysql.yml
total, el que vamos a pegar, ya tiene todo resuelto. Nos fatla ver las diferencias. Para esto, como queremos que sea persistente, lo vamos a hacer via NFS, corriendo en el master.
Lo que necesitamos es:
A) Crear el PVC
B) Crear EL PV
C) Crear el MYSQL
vamos por el A
apiVersion: v1
kind: PersistentVolume
metadata:
name: lab-vol
spec:
capacity:
storage: 10Gi
volumeMode: Filesystem
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Recycle
nfs:
path: /var/nfs/general
server: qqmelo1c.mylabserver.com
readOnly: false
Defini un nfs server. Recordar que es importantisimo que tengamos andando el nfs-common en ambos workers.
Ahora el PVC.
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: nfs-pvc
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 1Gi
y ahora el servicio persistente de mysql
aca defino un servicio, que luego lo cambiare, con su respectivo almacenamiento persistente
kind: Service
metadata:
name: mysql
spec:
ports:
- port: 3306
selector:
app: mysql
clusterIP: None
---
apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: mysql
spec:
containers:
- image: mysql:5.6
name: mysql
env:
# Use secret in real usage
- name: MYSQL_ROOT_PASSWORD
value: password
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: nfs-pvc
ACL Haproxy
root@qqmelo1c:~/postgres# cat /etc/haproxy/haproxy.cfg
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
stats timeout 30s
user haproxy
group haproxy
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# Default ciphers to use on SSL-enabled listening sockets.
# For more information, see ciphers(1SSL). This list is from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# An alternative list with additional directives can be obtained from
# https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
listen 3.16.21.136
bind *:80
mode http
stats enable
stats auth cda:cda
balance roundrobin
option forwardfor
#acl is_for_backend2 path_reg ^$|^/$|^/nodos|^/bpages
acl is_for_backend2 path_beg -i /nodos
use_backend backend2 if is_for_backend2
default_backend backend1
backend backend1
server worker2 172.31.100.16:31759 check #IP Privada frontal-01
server worker1 172.31.104.150:31759 check #IP Privada frontal-01
backend backend2
server worker2 172.31.100.16:30737 check #IP Privada frontal-01
server worker1 172.31.104.150:30737 check #IP Privada frontal-01
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
stats timeout 30s
user haproxy
group haproxy
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# Default ciphers to use on SSL-enabled listening sockets.
# For more information, see ciphers(1SSL). This list is from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# An alternative list with additional directives can be obtained from
# https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
listen 3.16.21.136
bind *:80
mode http
stats enable
stats auth cda:cda
balance roundrobin
option forwardfor
#acl is_for_backend2 path_reg ^$|^/$|^/nodos|^/bpages
acl is_for_backend2 path_beg -i /nodos
use_backend backend2 if is_for_backend2
default_backend backend1
backend backend1
server worker2 172.31.100.16:31759 check #IP Privada frontal-01
server worker1 172.31.104.150:31759 check #IP Privada frontal-01
backend backend2
server worker2 172.31.100.16:30737 check #IP Privada frontal-01
server worker1 172.31.104.150:30737 check #IP Privada frontal-01
Thursday, June 13, 2019
HAPROXY - K8s
En el nodo master, instale el haproxy.
Dejo el fichero de configuracion
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
stats timeout 30s
user haproxy
group haproxy
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# Default ciphers to use on SSL-enabled listening sockets.
# For more information, see ciphers(1SSL). This list is from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# An alternative list with additional directives can be obtained from
# https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
listen 192.168.0.140
bind *:80
mode http
stats enable
stats auth cda:cda
balance roundrobin
option forwardfor
server worker1 192.168.0.141:30224 check #IP Privada frontal-01
server worker2 192.168.0.142:30224 check #IP Privada frontal-01
Dejo el fichero de configuracion
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
stats timeout 30s
user haproxy
group haproxy
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# Default ciphers to use on SSL-enabled listening sockets.
# For more information, see ciphers(1SSL). This list is from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# An alternative list with additional directives can be obtained from
# https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
listen 192.168.0.140
bind *:80
mode http
stats enable
stats auth cda:cda
balance roundrobin
option forwardfor
server worker1 192.168.0.141:30224 check #IP Privada frontal-01
server worker2 192.168.0.142:30224 check #IP Privada frontal-01
es algo asi como
Wednesday, June 12, 2019
Monday, June 10, 2019
Sunday, June 9, 2019
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