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Important DevOps Practices

DevOps /

Many corporations suffer due to a time-consuming product development cycle, slow response times, low-profit margins, and low agility in operations. DevOps is an environment where the developer and operations team within an organization work in collaboration with each other for the product development and support cycle. DevOps helps organizations overcome these issues with the use of specific principles and processes. The outcomes achieved with the correct implementation of DevOps are: DevOps is the answer to all the complexities of the application development process. Here are some of the best practices to adopt for DevOps Development: Consult the TeamITServe’s team today for help. If you are looking for experienced DevOps professionals for your organization, contact us at vic@teamitserve.com

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mining

Bitcoin Mining v/s Bitcoin Buying, What is more Profitable?

Bitcoin /

Bitcoin mining, while highly competitive, is a highly lucrative industry. With the advanced ASICs machines and intuitive mining software, miners can not only cover the initial costs of the equipment in a single year but also earn a significant profit. The popularity of Bitcoin mining has grown hand-in-hand with the acceptance of cryptocurrencies. Bitcoin mining uses ASIC computing power to solve complex equations, which earn the miners a reward in the cryptocurrencies. The evolution of DeFi technology has made Bitcoin mining more lucrative.  Here are few reasons why Bitcoin mining is more lucrative than buying. Money Money is undoubtedly the biggest lure for crypto investors. Cryptocurrency promises great rewards by holding and leveraging Bitcoin to grow more returns. However, considering 1 Bitcoin costs over $60,000, it might be unaffordable for maximum investors. Here’s where Bitcoin mining comes into play as users can not only earn their equipment cost in a year but also earn more Bitcoins over the year. Bitcoin mining is adaptive and will not harm the miners during fluctuations. If the price of Bitcoin drops or increases, Miners can switch between different currencies to adjust their profits. In contrast, the person who purchases a Bitcoin might face loss if the Bitcoin’s price drops.  Diversity Bitcoin, while being the most significant player in the cryptocurrency world, is not the only one. The Crypto market is unpredictable and is prone to severe fluctuations. In the past, several times, the price of Bitcoin dropped, unfortunately, and users had to switch to Ethereum. While switching from one cryptocurrency to another is easy for miners, it might not be as profitable for people buying the token. They might have to cut their losses and trade them for lower values, and face significant losses. Mining platforms can automatically shift the pool from one token to another, adjusting to the fluctuations and prevent any losses for miners. Safety There have been several cases where even the best crypto wallets were hacked, and users ended up losing their crypto assets. While holding assets in a digital wallet is risky, storing them in cold storage is not. The majority of mining platforms store their user’s crypto assets in cold storage, making them inaccessible to hackers. Conclusion Purchasing Bitcoin is not everyone’s cup of tea anymore, but that should not stop you from investing. Bitcoin mining is a more beneficial way of earning tokens without any risks, as stated above.

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How to Implement DevSecOps?

DevOps /

DevSecOps (Developer + Security + Operations) is a movement created to facilitate collaboration between IT security and operations teams and integrate the technology and processes they use to keep systems and data secure — all in an effort to reduce risk and improve business agility. Importance of DevSecOps In recent years, we have seen that cyber-attacks have increased many folds, and even the most prepared organizations can’t deny the risk of undergoing a cyber-attack. It came into notice in the past few days that zero-day attacks compromised more than 65% of the total attacks, and the threats to cloud-based applications have significantly increased, which were previously negligible as more organizations are shifting towards cloud environments. Incorporating security is essential to the DevOps process as security can no longer be neglected or underestimated. Further, this increased level of threat has given rise to DevSecOps. The Steps to Implement DevSecOps: Need help? Contact the TeamITServe team today. If you are looking for experienced DevOps professionals for your organization, contact us at vic@teamitserve.com

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AWS LAMBDA Setup Process with S3 Bucket

AWS /

An articles on AWS Lambda setup process 2. Then click on create role and choose AWS service and in common use case u will see lambda select it and click on next: permissions. 3. Now we have to create a policy for DynamoDB. For this session I am taking DynamoDB full access and click on next. 4. Now in the next tab you can give tags. 5. After this enter the name for your role and click on create role. 6. Once a role is created now go to lambda in AWS services compute section. 7. Now first we need to create a function click on create function. 8. Now we have 3 options to create a function. I am choosing the Author from scratch option. 9. Now here we need to give our lambda name and runtime language in which we want to create our lambda. Also select the role which we created earlier and click on the create function. 10. Once lambda is created successfully you will receive a success message on the next window. 11. Now we need to add a python code in a function code section. import boto3 from uuid import uuid4 def lambda_handler(event, context):     s3 = boto3.client(“s3”)     dynamodb = boto3.resource(‘dynamodb’)     for record in event[‘Records’]:         bucket_name = record[‘s3’][‘bucket’][‘name’]         object_key = record[‘s3’][‘object’][‘key’]         size = record[‘s3’][‘object’].get(‘size’, -1)         event_name = record [‘eventName’]         event_time = record[‘eventTime’]         dynamoTable = dynamodb.Table(‘newtable’)         dynamoTable.put_item(             Item={‘unique’: str(uuid4()), ‘Bucket’: bucket_name, ‘Object’: object_key,’Size’: size, ‘Event’: event_name, ‘EventTime’: event_time}) 12. Rest of the settings you can choose default and click on deploy. 13. Now we have to add a trigger for this first we need to create a bucket .So go to S3 and create a bucket and allow public access of bucket. 14. Now go back to lambda and click on add trigger and choose S3. 15. Now select bucket name and event type as all object create events and click on Add. 16. Now on the next window it is visible to you that a bucket is added as a trigger. 17. Now we need to create a DynamoDB table so go to AWS services and create a DynamoDB table. 18. Now create a DynamoDB table by clicking create table and fill all the details like table name and primary key same as you used in your function code then click on create. 19. 20. Now check in items columns you will not find any entries. 21. Now go back to the s3 bucket and upload a file in your s3 bucket. 22. Once you upload a file go and check in the DynamoDB table you will find an entry of that image in the table. 23. In the DynamoDB table you will find all the entries related to uploaded file like file name, date & time etc. If you need help in configuring this cluster, feel free to email us vic@teamitserve.com or call us at +1 810 214 2572.

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AWS LAMBDA || A Beginner’s Guide on TeamITServe

AWS /

AWS Lambda details Running codes requires resources that can sometimes be inaccessible for many. AWS released Lambda in November 2014 to solve this problem. Lambda is a compute service that can run codes without any provisioning. Lambda by AWS is a server-less, event-driven computing platform. With the help of AWS Lambda, users can run code for applications and backend services with absolute zero administration and pay only for the compute time consumed. AWS Lambda manages all the below mentioned administrations: Features of Amazon Web Service Lambda:-

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Frequently Used DevOps Tools

DevOps /

DevOps tools is Frequently Used DevOps is a set of practices that combines software development (Dev) and IT operations (Ops). It aims to shorten the systems development life cycle and provide continuous delivery with high software quality.  Out of many tools available for DevOps, some of the most frequent tools are: Kubernetes: It is necessary to use an orchestration platform (the management of applications built using containers) to scale and manage your containers. Kubernetes is a popular open-source platform for container orchestration.  Docker: Docker is an open-source software development program that helps developers build portable software containers for faster application development and deployment. Docker uses the host’s OS kernel instead of requiring a special one to run the application. This results in both boosted performance and the application is lightweight. Docker is beneficial for both developers and operations. It helps developers code with ease without worrying about the machine on which it will ultimately run. As for the operations team, Docker gives them a lot of flexibility due to its small footprint and lower costs. Jenkins: Jenkins is an open-source CI/CD server that allows users to automate different parts of their delivery pipeline. The main reason for its popularity is the massive plugin ecosystem. With Jenkins, you can iterate and deploy new code as quickly as possible. It also allows you to measure the success of each step of your pipeline. Git: Git is a distributed SCM (source code management tool) and is one of the most used DevOps tools. Git allows you to track the progress of your development work. Users can save different versions of their source code and return to previous builds when necessary. To integrate Git with DevOps workflow, repositories should be hosted where the team members can push their work. Currently, the two best online Git repo hosting services are GitHub and Bitbucket. Bamboo: Bamboo is also a CI/CD server similar to Jenkins and developed by Atlassian. Both the tools allow users to automate their delivery pipeline, from builds to deployment. Bamboo saves a lot of configuration time and comes with an intuitive UI, auto-completion, and many other handy features. DevOps is the answer to all the complexities of the application development process. Consult the TeamITServe team today for help. If you are looking for experienced DevOps professionals for your organization, contact us at vic@teamitserve.com

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Docker Swarm

Uncategorized /

Docker Swarm is a container orchestration tool which allows users to manage multiple containers with ease. With its help containers can be easily deployed across various host machines. Docker swarm offers high level of availability for applications. Container Orchestration System If you need to run hundreds of containers a container orchestration system is required. You can easily see that if they are running in a distributed mode, there are multiple features that you will need from a management point of view to make sure that the cluster is up and running without errors. Some of these necessary features include: Setup a cluster with Docker Swarm We will use AWS ec2 for setting up the cluster, so we will launch 3 Ubuntu 18.04 machine from AWS marketplace, 1 will be master node and other 2 will be worker nodes. Each node must also be running Docker. Install Docker Curl -ssl https://get.docker.com | sh This will install the latest version of Docker engine. Create Swarm Manager Run the command below on the manager machine. sudo docker swarm init –advertise-addr 192.168.0.100 The output will be like: Save the token from the above output, this will be used to add the nodes to the cluster. You can see the nodes in the cluster with the command below: Add Nodes to cluster: SSh to you worker nodes and install Docker in them. Then you can join the cluster by entering the token we have saved above with swarm join command. Run this command in both the nodes. Then go back to the master node and run the following command to check how many nodes have joined. Deploy a sample service on cluster. It will create a service for the nginx web server. You can list and check the status of the service. Clustering made easy with Swarm That’s the gist of creating a Docker swarm and creating a service on your new cluster. To learn more about what Docker swarm can do, issue the command Docker swarm — help to see the other commands you can use for Docker swarm. If you need help in configuring this cluster, feel free to email us vic@teamitserve.com or call us at +1 810 214 2572

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AWS SNS (Simple Notification Service)

AWS /

SNS is Simple Notification Service. SNS is an AWS managed web service which is easy to set up, operate, and send a notification from the cloud platform like AWS. It provides developers with the highly scalable, cost-effective, and flexible capability to publish messages from an application and send them to other applications. Feature of SNS: → Messages published to an SNS topics will be delivered to the    subscriber immediately → Inexpensive, pay as-you-go model with no upfront cost. Amazon SNS is a web service that manages sending messages to the subscribing endpoint. In AWS SNS we have two clients: Publisher: Publisher are also known as producers that produce and send the message to the SNS. Publisher is the one who has all privileges which can manage who can send messages on topic. Subscribers: Subscribers are those who receive the messenger notifications from AWS SNS (Webservers, email address, Amazon SQS Queues, AWS Lambda). SNS TOPIC Delivery Formats/Transport protocols (Endpoints) Limitations of AWS SNS: Supported Push Notification Platforms: SNS Topic can have subscribers from any supported push notification platform as well as any other endpoint type such as SMS or Email. When you publish a notification to a topic, SNS will send identical copies of that message to each endpoint subscribed to the topic. Amazon SNS alternatives: Amazon Simple Notification Service Pricing Lambda roles AWS Simple Notification Service SETUP 2. Now we need to create a topic. Basically it is a message channel when you publish a message to a topic it fans-out the message to all subscribed endpoints. 3. After the topic is created it will be shown to you in your next tab and the rest of the basic details you can set as default. 4. Now in the access policy section we need to define who can publish the topic. In my case I am taking default only the topic owner can publish option. 5. Now define who can subscribe to this topic in my case I am taking everyone can subscribe. 6. Now in section delivery retry policy I am using the default options. 7. Now in delivery status logging I am using default options because we don’t want to collect logs and the tags this time we are not giving any tag to this service. Once it is done click create topic. 8. Once it is created you will see a successful message that topic is created successfully now you can create subscription and send messages to them from this topic. 9. Now click on create subscription to create subscription. 10. Now create a subscription select protocol which you want to choose. In my case I am taking email. 11. In the endpoint enter your email on which we want a message. And rest of the options use default. Once it is done click create subscription. 12. Now on your email you will receive a mail for subscription. So click on confirm subscription. 13. Once subscription is confirmed the status will be changed to confirm. 14. Now select subscription and then click on publish message to send messages. 15. Now fill the subject and message body whatever message we want to send to our subscribers. 16. Once all the details fill click on publish message. 17. Once you receive a message published to a topic successfully then we will receive mail in your inbox. So in this way we can send messages to our subscribers. Send text messaging from Simple Notification Service Amazon SNS lets you send SMS text messages to any phone number. 2. In the next tab you will have to choose message type (i.e. Transactional & promotional) I am using promotional messages for now. 3. After this fill the mobile number and message you want to deliver to your customer. 4. Once you click publish message it will send a message on your phone number. If you need help in configuring this cluster, feel free to email us vic@teamitserve.com or call us at +1 810 214 2572

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DevOps with TeamITServe

DevOps /

DevOps is an environment wherein developers and operations work together throughout the entire service lifecycle, from designing and development to product support. DevOps has become essential for growth and survival, but protecting the software delivery and deployment pipeline has become more critical than ever before. DevSecOps has become more essential now than ever before. Many corporations suffer due to a time-consuming product development cycle, slow response times, low-profit margins, and low agility in operations. DevOps is an environment where the developer and operations team within an organization work in collaboration with each other for the product development and support cycle. DevOps helps organizations overcome these issues with the use of specific principles and processes. The outcomes achieved with the correct implementation of DevOps are: In this fast moving and competitive world, the newbies have to maintain, cope, and compete with the pace of existing companies and thus, the best possible service to help them is DevOps. It does not just maintain and increase the pace but also provides security and increases the reliability of the developed application and DevOps consulting services DevOps. Thus, attracting more and more customers and helping to establish the start-ups against the multinational existing enterprises. DevOps is the answer to all the complexities of the application development process. Consult the TeamITServe team today for help. If you are looking for experienced DevOps professionals for your organization, contact us at vic@teamitservecom

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