; named.conf
zone "." {
        type hint;
        file "/usr/share/dns/root.hints";
};

zone "localhost" {
        type master;
        file "/etc/bind/db.local";
};

zone "127.in-addr.arpa" {
        type master;
        file "/etc/bind/db.127";
};

zone "0.in-addr.arpa" {
        type master;
        file "/etc/bind/db.0";
};

zone "255.in-addr.arpa" {
        type master;
        file "/etc/bind/db.255";
};

zone "digikala.com" {
        type master;
        file "/etc/bind/digikala.local";
};

options {
        directory "/var/cache/bind";

        forwarders {
                8.8.8.8;
        };

        dnssec-validation auto;

        listen-on-v6 { any; };
};

; digikala.local
;
; BIND data file for local loopback interface
;
$TTL    604800
@    IN    SOA    digikala.com. root.digikala.com. (
                  2        ; Serial
             604800        ; Refresh
              86400        ; Retry
            2419200        ; Expire
             604800 )    ; Negative Cache TTL
;
@    IN    NS    digikala.com.
@    IN    A    12.12.12.12
www    IN    A    12.12.12.13

dig +short @127.0.0.1 www.digikala.com
12.12.12.13

dig +short @127.0.0.1 mobile.digikala.com

├── configs
│   ├── db.0
│   ├── db.127
│   ├── db.255
│   ├── db.local
│   ├── digikala.local
│   ├── named.conf
│   └── root.hints
└── docker-compose.yml

# deployment.yml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: "{{ .Release.Name }}-deployment"
  labels:
    app: "{{ .Release.Name }}"
spec:
  replicas: 3
  selector:
    matchLabels:
      app: "{{ .Release.Name }}"
  template:
    metadata:
      labels:
        app: "{{ .Release.Name }}"
    spec:
      containers:
        {{ range $image := .Values.images }}
        - name: "{{ .Release.Name }}-{{ $image }}"
          image: "{{ $image }}"
        {{ end }}

# values.yml
images:
  - nginx
  - php

$ helm template -n test test ./ --debug
install.go:172: [debug] Original chart version: ""
install.go:189: [debug] CHART PATH: /home/salarmgh/Workspace/quera/helm/test

Error: template: test/templates/deployment.yaml:19:28: executing "test/templates/deployment.yaml" at <.Release.Name>: can't evaluate field Release in type interface {}

helm.go:81: [debug] template: test/templates/deployment.yaml:19:28: executing "test/templates/deployment.yaml" at <.Release.Name>:
can't evaluate field Release in type interface {}

.
├── charts
├── Chart.yaml
├── templates
│   ├── deployment.yaml
│   ├── _helpers.tpl
│   └── NOTES.txt
└── values.yaml

---
grants:
  - name: john
    host: "%"
    password: qazwsx
    grants:
      - "testdb5.*:SELECT,INSERT,UPDATE,DELETE,CREATE"
      - "testdb4.*:SELECT,INSERT,UPDATE,DELETE"
      - "testdb3.*:SELECT,INSERT"
      - "testdb2.*:SELECT"

  - name: foo
    host: "%"
    password: 1234
    grants:
      - "testdb2.*:SELECT"
      - "testdb3.*:UPDATE"

  - name: bar
    host: "172.16.16.%"
    password: 1111
    grants:
      - "testdb2.*:SELECT"
      - "testdb1.*:DELETE"
      - "testdb4.*:SELECT,INSERT,UPDATE,DELETE"
      - "testdb3.*:SELECT,INSERT"

  - name: sara
    host: "localhost"
    password: 2222
    grants:
      - "testdb5.*:SELECT,INSERT,UPDATE,DELETE,CREATE"
      - "testdb3.*:SELECT,INSERT"
      - "testdb2.*:SELECT"
      - "testdb4.*:SELECT,INSERT,UPDATE,DELETE"

ansible-playbook site.yml

├── docker-compose.yml
├── group_vars
│   └── all
│       ├── main.yml
│       └── mysql.yml
├── inventory
│   └── sample
│       └── hosts.yml
├── roles
│   └── grants
│       ├── handlers
│       ├── tasks
│       │   ├── main.yml
│       │   └── grants.yml
│       └── templates
└── site.yml

$ ./script.sh input.txt

$ cat server_input.txt
A 29 23 50
B 33 39 75
C 79 85 80
D 99 88 69

$ server_status.sh server_input.txt
A: Fail
B: Fail
C: Pass
D: Pass

$ cat server_input.txt
ali    behnam salar,javad|ehsan\mohammad!hossein

hadi 

ali  
mohammadreza

$ count_names.sh names_input.txt
Count: 10

.
├── count_names.sh
├── names_input.txt
├── server_input.txt
└── server_status.sh

# haproxy.cfg

global
    user haproxy
    group haproxy
    daemon

defaults
    log    global
    mode    http
    option    httplog
    option    dontlognull
    timeout connect 5000
    timeout client  50000
    timeout server  50000
    errorfile 400 /usr/local/etc/haproxy/errors/400.http
    errorfile 403 /usr/local/etc/haproxy/errors/403.http
    errorfile 408 /usr/local/etc/haproxy/errors/408.http
    errorfile 500 /usr/local/etc/haproxy/errors/500.http
    errorfile 502 /usr/local/etc/haproxy/errors/502.http
    errorfile 503 /usr/local/etc/haproxy/errors/503.http
    errorfile 504 /usr/local/etc/haproxy/errors/504.http


frontend http
    bind *:8888
    use_backend app


backend app
    server app1 api:5000

$ curl localhost:8888/working

It works

$ curl localhost:8888/not-working

<html><body><h1>403
Forbidden</h1>

Request
forbidden by administrative rules.

</body></html>

$ curl localhost:8888/not-working -H "staff: f34ac726dd7486a22bc0"

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">
<html>
  <head>
    <title>Exception: test // Werkzeug Debugger</title>
    <link rel="stylesheet" href="?__debugger__=yes&amp;cmd=resource&amp;f=style.css"
        type="text/css">
    <!-- We need to make sure this has a favicon so that the debugger does
         not by accident trigger a request to /favicon.ico which might
         change the application state. -->
    <link rel="shortcut icon"
        href="?__debugger__=yes&amp;cmd=resource&amp;f=console.png">
    <script src="?__debugger__=yes&amp;cmd=resource&amp;f=jquery.js"></script>
    <script src="?__debugger__=yes&amp;cmd=resource&amp;f=debugger.js"></script>
.
.
.

├── api
│   ├── api.py
│   ├── Dockerfile
│   └── requirements.txt
├── docker-compose.yml
├── haproxy
│   ├── errors
│   │   ├── 400.http
│   │   ├── 403.http
│   │   ├── 408.http
│   │   ├── 500.http
│   │   ├── 502.http
│   │   ├── 503.http
│   │   └── 504.http
│   └── haproxy.cfg

server app1 api:5000