Laradock Kubernetes Helm Chart -

Laradock kubernetes Helm Chart inspired by https://laradock.io/ solved @https://github.com/laradock/laradock/issues/1469 Laravel kubernetes Installation + cron jobs + REDIS Queue Scheduler

Installing helm chart

$ helm install --name laradock-kubernetes . --namespace development

pass db + redis config in helm chart during installation as env

$ helm install --name laradock-kubernetes . --namespace development --set DB_HOST="",DB_DATABASE="",DB_PASSWORD="",REDIS_HOST="",REDIS_PASSWORD=""

Uninstalling the Chart

To uninstall/delete the laradock-kubernetes deployment:

$ helm delete --purge laradock-kubernetes

Configuration

Parameter Description Default  
APP_KEY APP_KEY    
DB_HOST DB_HOST    
DB_DATABASE DB_DATABASE    
DB_USERNAME DB_USERNAME    
DB_PASSWORD DB_PASSWORD    
REDIS_HOST REDIS_HOST    
REDIS_PASSWORD REDIS_PASSWORD    
PUSHER_APP_ID PUSHER_APP_ID    
PUSHER_APP_KEY PUSHER_APP_KEY    
PUSHER_APP_SECRET PUSHER_APP_SECRET    
AWS_ACCESS_KEY_ID AWS_ACCESS_KEY_ID    
AWS_SECRET_ACCESS_KEY AWS_SECRET_ACCESS_KEY    
AWS_DEFAULT_REGION AWS_DEFAULT_REGION    
AWS_BUCKET AWS_BUCKET    
MAIL_USERNAME MAIL_USERNAME    
MAIL_PASSWORD MAIL_PASSWORD    
MIX_PUSHER_APP_KEY MIX_PUSHER_APP_KEY    
MIX_PUSHER_APP_CLUSTER MIX_PUSHER_APP_CLUSTER    
APP_NAME APP_NAME    
APP_ENV APP_ENV    
APP_DEBUG APP_DEBUG    
APP_URL APP_URL    
LOG_CHANNEL LOG_CHANNEL    
DB_CONNECTION DB_CONNECTION    
DB_PORT DB_PORT    
BROADCAST_DRIVER BROADCAST_DRIVER    
CACHE_DRIVER CACHE_DRIVER    
QUEUE_CONNECTION QUEUE_CONNECTION    
SESSION_DRIVER SESSION_DRIVER    
SESSION_LIFETIME SESSION_LIFETIME    
CACHE_DRIVER CACHE_DRIVER    
REDIS_PORT REDIS_PORT    
MAIL_MAILER MAIL_MAILER    
MAIL_HOST MAIL_HOST    
MAIL_PORT MAIL_PORT    
MAIL_ENCRYPTION MAIL_ENCRYPTION    
MAIL_FROM_ADDRESS MAIL_FROM_ADDRESS    
MAIL_FROM_NAME MAIL_FROM_NAME    
PUSHER_APP_CLUSTER PUSHER_APP_CLUSTER    

Docker build for all required containers

$ cd laravel_app/

# build php-fpm
$ docker build -t anishdhanka/php-fpm -f docker/php-fpm/Dockerfile .

# build docker nginx
$ docker build -t anishdhanka/nginx -f docker/nginx/Dockerfile .

# build docker workspace
$ docker build -t anishdhanka/workspace -f docker/workspace/Dockerfile .

# build docker php-worker
$ docker build -t anishdhanka/php-worker -f docker/php-worker/Dockerfile .

Note

I have installed redis and mysql from statefulsets manually , used redis for session + queue drivers and mysql as db

Set kube environment to laravel .env

Check create_env.php in laravel_app directory

<?php
function createEnv()
{
    $environment_variables = getenv();
    $env = fopen('.env', 'w+');
    foreach ($environment_variables as $key => $environment_variable) {
        fwrite($env, $key . "='" . getenv($key) . "'\n");
    }

    fclose($env);
}

REDIS Queue + cron jobs tables

mysql> show tables;
+--------------------+
| Tables_in_laradock |
+--------------------+
| cron_logs          |
| failed_jobs        |
| migrations         |
| redis_logs         |
| users              |
+--------------------+
5 rows in set (0.01 sec)

mysql> desc redis_logs;
+------------+-----------------+------+-----+---------+----------------+
| Field      | Type            | Null | Key | Default | Extra          |
+------------+-----------------+------+-----+---------+----------------+
| id         | bigint unsigned | NO   | PRI | NULL    | auto_increment |
| data       | text            | NO   |     | NULL    |                |
| created_at | timestamp       | YES  |     | NULL    |                |
| updated_at | timestamp       | YES  |     | NULL    |                |
+------------+-----------------+------+-----+---------+----------------+
4 rows in set (0.00 sec)

mysql> desc cron_logs;
+--------------+-----------------+------+-----+---------+----------------+
| Field        | Type            | Null | Key | Default | Extra          |
+--------------+-----------------+------+-----+---------+----------------+
| id           | bigint unsigned | NO   | PRI | NULL    | auto_increment |
| trigger_time | datetime        | NO   |     | NULL    |                |
| created_at   | timestamp       | YES  |     | NULL    |                |
| updated_at   | timestamp       | YES  |     | NULL    |                |
+--------------+-----------------+------+-----+---------+----------------+
4 rows in set (0.00 sec)

# cron job working example in scheduler pod also marked as critical pod.
# check laravel_app/app/Console/Kernel.php

    protected function schedule(Schedule $schedule)
    {
               $schedule->call(function () {
                    DB::table('cron_logs')->insert(['trigger_time' => date("Y-m-d H:i:s")]);
               })->everyMinute();
    }


mysql> select * from cron_logs \G;
*************************** 1. row ***************************
          id: 1
trigger_time: 2020-05-05 11:39:47
  created_at: NULL
  updated_at: NULL
*************************** 2. row ***************************
          id: 2
trigger_time: 2020-05-05 11:39:53
  created_at: NULL
  updated_at: NULL
*************************** 3. row ***************************
          id: 3
trigger_time: 2020-05-05 11:42:01
  created_at: NULL
  updated_at: NULL
*************************** 4. row ***************************
          id: 4
trigger_time: 2020-05-05 11:42:32
  created_at: NULL
  updated_at: NULL
*************************** 5. row ***************************
          id: 5
trigger_time: 2020-05-05 11:43:00
  created_at: NULL
  updated_at: NULL
5 rows in set (0.01 sec)


## db migrate job helm chart pre-install hook 
## check laravel_app/database/migrations

mysql> desc users;
+-------------------+-----------------+------+-----+---------+----------------+
| Field             | Type            | Null | Key | Default | Extra          |
+-------------------+-----------------+------+-----+---------+----------------+
| id                | bigint unsigned | NO   | PRI | NULL    | auto_increment |
| name              | varchar(255)    | NO   |     | NULL    |                |
| email             | varchar(255)    | NO   | UNI | NULL    |                |
| email_verified_at | timestamp       | YES  |     | NULL    |                |
| password          | varchar(255)    | NO   |     | NULL    |                |
| address           | text            | NO   |     | NULL    |                |
| remember_token    | varchar(100)    | YES  |     | NULL    |                |
| created_at        | timestamp       | YES  |     | NULL    |                |
| updated_at        | timestamp       | YES  |     | NULL    |                |
+-------------------+-----------------+------+-----+---------+----------------+
9 rows in set (0.01 sec)

## queue working on php-worker
curl --location --request POST 'http://127.0.0.1:8000/redis-queue-test' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'name=anish'

## check laravel_app/app/Http/Controllers/RedisTestQueueController.php

## Php Controller for REDIS Job Controller

class RedisTestQueueController extends Controller
{
        public function store(Request $request)
        {
            $data = $request->all();
            $json_encode = json_encode($data);
            RedisTestJob::dispatch($json_encode);
            return response()->json(['message'=>'data successfully submitted']);
        }
}

## Laravel Job 

## check laravel_app/app/Http/Jobs/RedisTestJob.php

class RedisTestJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
    protected $data;

    /**
     * Create a new job instance.
     *
     * @return void
     */
    public function __construct($data)
    {
        $this->data = $data;
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        DB::table('redis_logs')->insert(['data' => $this->data]);
    }
}

## Queue job output

mysql> select * from redis_logs \G;
*************************** 1. row ***************************
        id: 1
      data: {"name":"anish"}
created_at: NULL
updated_at: NULL
1 row in set (0.00 sec)