ultimate guide to kubernetes deployment.pdf

E-book
The Ultimate
Guide to
Best Practices of
Kubernetes
Deployment
By BuildPiper
An Opstree Product

Table Of Contents
Kubernetes Demand ........................................................................................2
Challenges of Kubernetes Deployment ........................................,3
Security Challenges .........................................................................................4
Mitigating these Security Challenges ..............................................4.1
Best Security Practices ................................................................................4.2
Monitoring & Observability Challenges ...........................................5
Addressing Monitoring & Observability Challenges ............5.1
Best Monitoring & Observability Practices ...................................5.2
Networking Challenges .................................................................................6
Remediating Networking Challenges ..............................................6.1
Best Networking Practices ........................................................................6.2
General Best Practices of K8s deployment ...................................7
Introduction .............................................................................................................1
BuildPiper - By OpsTree

Introduction
01
Kubernetes is an open-source
platform for scheduling and
automating the deployment,
management and scaling of
containerized applications. Also
known as “k8s” or “kube” — this
container orchestration platform
enables cost-effective cloud-native
development. (Read this to know
more about Kubernetes, its
architecture and Kubernetes
components like nodes, pods,
containers and much.
Enterprises across the globe are
deploying Kubernetes via their
preferred choices. Based on the cloud
service, some choose to go for AKS
deployment on Azure, others prefer
to choose EKS deployment with AWS
or some others choose standalone
setup of Kubernetes for enabling
seamless container management.
Along with all the advantages that
come up with deploying
Kubernetes, there are many
challenges too. Engineering teams
can be seen exploring ways to
navigate through these complicated
and often overwhelming Kubernetes
challenges to get the most out of
their investments. This ebook
explains and walks you through the
best practices of Kubernetes
deployment.

Kubernetes Demand!
Kubernetes has quickly emerged as one of the leading
container orchestration platforms—and, no doubt, for the
good. It has become the de-facto standard for deploying
containerized applications at scale in private, public and
hybrid cloud environments in the market today.
02
Features of Kubernetes
Automated Scheduling Self Healing Capabilities
Automated Rollouts
& Rollback
Enterprise Ready Features Application Centric
Management
Improved Resource Utilization

Kubernetes Demand!
According to a new forecast from Gartner, Inc, the worldwide container
management revenue will grow strongly from a small base of $465.8 million
in 2020, to reach $944 million in 2024. Moreover, the report suggests, among
the various cloud technologies, public cloud container orchestration and
serverless container offerings will experience the most significant growth.

Challenges & Best Practices of
Kubernetes Deployment!
According to a survey, shifting hundreds or thousands of apps to Kubernetes
can be highly challenging. The survey suggests that initial deployment,
monitoring and alerting, complexity and increased cost, and reliability were the
major hurdles that enterprises faced during migration.
03

Challenges & Best Practices of
Kubernetes Deployment!
The major problem arises when organizations face a number of
complexities while running Kubernetes. Here we’ll explore three of the
primary barriers, along with some of the best practices
Security Challenges
Monitoring & Observability
Challenges
Networking
Challenges

Among the many challenges that enterprises have to handle with
Kubernetes deployment, security is one of them. In the current disruptive
and highly competitive market, Kubernetes-related security attacks and
incidents are on the rise. Many organizations are forced to hold back on
their business plans because of their Kubernetes-related security
concerns and partly for their inability to resolve them.
Security checks and addressing security issues can’t be an afterthought.
The security practices need to be embedded in the DevOps process -
generally referred to as “DevSecOps”. While talking about Kubernetes
challenges here, or Kubernetes DevSecOps, Product teams need to
plan for securing the containerized environment across the entire
DevOps life cycle, which includes the build, deploy and run phases of
an application.
Security Challenges
Lately, security concerns have come out as one of the significant
Kubernetes challenges for enterprises planning to deploy Kubernetes.
When it comes to single out significant security challenges, it won’t be
wrong to consider these as the major barriers for implementing
Kubernetes. Let’s hash these out.
- Communication between the pods
- Runtime security threats
04

The entire Kubernetes deployment comes down to pods or groups of one
or more containers. Pods are the smallest deployable units of computing
that can be created and managed within Kubernetes. A pod comprises the
shared storage and network resources, and a specification for how to run
the containers.
It makes sense that enterprises’ efforts for resolving Kubernetes-related
security concerns should begin here. Pod communication is an issue. Since
all pods are non-isolated by default and accept traffic from any source.
Thus, the intrusion of external malicious entities can take advantage of the
fact and use the communication properties of the pod to contaminate the
remaining pods.
This creates a problem in access control. Access control is determining who
gets what kind of access to particular data. Restricting access to
confidential systems or data helps in preventing risks associated with data
exposure.
Communication Between the Pods

Enterprises need to be aware of runtime security threats for a secured and
hassle-free Kubernetes deployment. The runtime phase of Kubernetes
deployment exposes containerized applications to a chunk of security threats
that happen in real-time. As a result, a compromised container can execute a
malicious process that ultimately affects the other containers in the environment.
Runtime Security Threats
A survey shows that 94% of organizations have experienced a serious security
issue in the last 12 months in their container environment, with
69%
27% 24%
having detected
misconfigurations
experiencing runtime
security incidents
discovering significant
vulnerabilities to remediate.

Runtime Security Threats
Comprehensive Kubernetes monitoring and checking container activities can help
organizations tackle these security-related Kubernetes challenges. Enterprises
should primarily focus on network traffic in order to restrict and prevent
unnecessary or insecure communication, as specified by their network policies.
They can then use this data to harden the conditions of their network policies even
further. Leveraging popular Kubernetes DevSecOps approaches can help in
overcoming these challenges.
Mitigating these Security
Challenges
Security has been the first concern when it comes to deploying and running
Kubernetes for container orchestration. Combining the latest Kubernetes
DevSecOps approaches along with the best security practices, BuildPiper helps
with secure, scalable and seamless K8s cluster management and deployment. Here
is how BuildPiper commits to make your life easier.
4.1

BuildPiper allows cluster creation backed by RBAC based safe &
compliant interface, enabling secured K8s operations and access
control management
RBAC
Mitigating these Security
Challenges
Secret Management
with Hashicorp Vault:
Enables seamless secrets management within the same platform by
default integration with Hashicorp Vault, thus providing the platform
operations team with the ability to manage security from a centralised
console with a Key-Value pair.
Access
Management
With a ‘Security - First’ mindset, BuildPiper offers multiple options to
securely manage access with custom ingress rules for the public,
protected and private traffic flowing through the services.

Best Security Practices
Integrate an image-scanning process to prevent vulnerabilities in the
applications. Include the process as a part of the continuous
integration/continuous delivery (CI/CD). Doing this makes sure that all the
enterprise applications are scanned during the build and run phases of
the software development life cycle.
To restrict exposure of containerized applications from security threats and
malicious attacks, considering Kubernetes DevSecOps practices can be
leveraged. Here are a few recommended approaches and best practices to adopt
in order to resolve security issues and extract the most out of the Kubernetes
advantages and quick delivery of applications.
Image Scanning
Process
CIS Benchmarks
Tighten the configurations for Kubernetes monitoring and detecting
threats and vulnerabilities by using Center for Internet Security (CIS)
benchmarks, which are available for Kubernetes, to enable a strong
security system.
Access Control
Restrict access to confidential systems or data. It helps to mitigate
potential threats and risks associated with data exposure.
4.2

Deploy tools and methods for managing digital authentication credentials
(known as secrets), including passwords, keys, APIs, and tokens for getting
access to applications, services, and other sensitive parts of the enterprise.
Best Security Practices
Enable Kubernetes role-based access control (RBAC). Kubernetes RBAC
controls the access authorization and also restricts the access to a cluster’s
Kubernetes API servers, both for service accounts and for users in the
cluster.
Secrets
Management
RBAC
Security is an important aspect that needs to be taken care of right from the start.
Ignoring potential security risks can expose applications to damaging threats
leading to serious consequences. Considering effective security practices can
fasten the delivery process and help businesses with enhanced agility and greater
ROI. Platforms like BuildPiper can enable this out of the box and make your
Kubernetes & Microservices Journey, hugely rewarding!
Key Takeaway:

Enterprises deploying Kubernetes clusters across on-premises, multiple
public clouds, or hybrid clouds introduce a lot of fragmentation and
complexity. To leverage the maximum value from the Kubernetes and to
avoid overhead expenditure, security risks and performance issues,
organizations need to have a complete view of the cluster components
including pods, nodes, applications, namespaces etc and how they interact
with each other.
Engineering teams struggle in gaining deep insights and detailed
observability into the cluster environment, which delays the process
of identifying failures and increases the MTTR (Mean Time to
Resolution) for any production outage. Due to a large number of
connected services and components within a cluster, monitoring
needs special attention.
Monitoring and Observability
Moreover, since the environment is constantly changing, Kubernetes
monitoring gets too complicated. As a result, platform teams fail to figure out
what is actually happening and what resources are being utilized, and even
the cost implications of the actions being taken on the cluster environment.
This is why finding the right cluster management platform that supports
deep insights and comprehensive observability is essential.
Challenges
05

Addressing Monitoring &
Observability Challenges
BuildPiper provides a 360-degree view of the cluster with out-of-the-box
microservice and cluster observability capabilities allowing users to view and
monitor the performance, health status, availability, logs and other important
metrics. To carry out concrete and comprehensive Kubernetes monitoring,
BuildPiper has -
With Managed Kubernetes as one of the core features, BuildPiper
aims to make Kubernetes- Microservices Application ready,
enabling highly intuitive cluster management with features like -
Managed Kubernetes
5.1

The dashboard gives complete
visibility into the service details in
Kubernetes.
Service Kubernetes
Dashboard
Infrastructure Monitoring Tools
BuildPiper enables hassle-
free integration and setup
of infrastructure monitoring
tools such as Prometheus,
Grafana, Alert Manager for
event monitoring and
alerting.
BuildPiper supports easy
configuration of log management
tools such as ElasticSearch,
Fluentd, and Kibana to manage
logs in Microservices architecture.
Log Management Tools
Addressing Monitoring &
Observability Challenges

Best Monitoring &
Observability Practices
Monitoring & Observability plays an important part in empowering
production-grade Kubernetes clusters. Here are a few practices to
leverage comprehensive monitoring & clear observability of the
cluster components.
Focus to gain deep insights into the
cluster components by monitoring at
a container granularity and across
containers at a service level.
Granular View Real-time details
Prioritize tools that have automated
service discovery, can perform detailed
application monitoring and provide
action-oriented recommendations in real-
time, using analytics and machine
learning.
Build & Deploy Logs
Get complete details of the Build
& deploy logs and events to
troubleshoot issues for seamless
deployment.
Monitoring Tools
Leverage infrastructure monitoring tools such
as Prometheus & Grafana and log
management tools Kibana & Fluentd, that
offer complete visibility into the cluster
environment.
5.2

Key Takeaway:
Tracing changes, monitoring health status and logging events in a large
K8s cluster come with its own sets of added complexity. In such a complex
system, monitoring is difficult but important to manage the complete
lifecycle of applications. It helps in identifying issues that arise when the
cluster is operational.
Best Monitoring &
Observability Practices

Kubernetes networking can be complicated and managing these can take
a toll on the productivity of the DevOps team. Troubleshooting typical
Kubernetes networking issues for large-scale production deployments
often becomes quite challenging for enterprises.
- Network Communication Reliability
- Combining Virtual Machine Networking
Network Communication Reliability
Service-to-service communication in a Microservice
architecture gets convoluted. As the number of services (and
containers and Kubernetes pods) increases, the complexity of
service communication increases, and so does the significance
of reliable communications.
Networking Challenges
This is why enterprises often have to face communication
reliability issues. Tightening the Kubernetes network policies
(and other configurations) can help in making network
communications reliable and more effective.
06

Combining Virtual Machine Networking
While talking about the different challenges of Kubernetes networking,
enterprises often have to face a common yet significant challenge. It is the
need of combining the management and monitoring of VM-based
deployments and Kubernetes-based deployments. Enterprises look for
ways to manage both types of deployments.
Since there are many differences between the VMs and containers that
results in organizations failing to overcome the issue. There arises a need
for a platform that can offer an API to address the needs of development
teams that have adopted Kubernetes for containers, along with the ability
to carry out deployments based on virtual machines.
Since there are many differences between the VMs and containers that
results in organizations failing to overcome the issue. There arises a need
for a platform that can offer an API to address the needs of development
teams that have adopted Kubernetes for containers, along with the ability to
carry out deployments based on virtual machines.

Remediating Networking
Challenges
Adopt some of the following ways with a custom setup or
leverage comprehensive platforms like BuildPiper.
ISTIO:
BuildPiper allows extremely easy setup and integration of ISTIO, which is an
open-source service mesh, to manage the traffic flow across microservices.
It checks and monitors the communication between microservices and
helps in preventing internal and external threats spanning across the data,
endpoints, communication, and platform.
Public & Protected Ingress:
Deploying the “convention over configuration” approach to make
Kubernetes cluster management extremely simple and highly secure,
BuildPiper provides an option to create Public and Protected Ingress.
6.1

Best Networking Practices
Using these practices can help organizations overcome the
Kubernetes networking challenges.
Identify whether your Kubernetes distribution platform or software-defined
networking (SDN) solution supports Kubernetes networking. If it does not, then
choose a Container Networking Interface. A CNI plugin helps in inserting a
network interface into the container network namespace.
Container
Networking
Interface
6.2

Best Networking Practices
Key Takeaway
Reliable and secured network communication is a must for smooth
application delivery. Restricting the traffic flow and access control
through Ingress can help in safe and secure communication between the
services.
Deploy a service mesh. A service mesh integrates with the infrastructure layer
of the application. It helps in making the communications between services
over the network secure and reliable.
Service Mesh
Networking
Tools
Provide the networking team with hands-on training on the latest Linux
networking and network automation tools to enhance agility.
Ensure that the Kubernetes platform you’ve chosen provides ingress controller
support for load balancing across hosts in the cluster.
Ingress

O
p
t
i
m
i
z
a
t
i
o
n
General Best Practices of
Kubernetes Deployment
Here are some of the general practices preferred by leading enterprises
for smooth, secure and compliant Kubernetes deployment. Let’s explore
these!
C
o
s
t
A majority of organizations have some workloads that are
mission-critical and other workloads that are not nearly as
important. It is possible to reduce the cost of these less-
important workloads by taking advantage of Spot instances.
Spot Instances let enterprises to take advantage of the
unused EC2 capacity in the cloud. Through these spot
instances, cloud providers offer excess capacity at a massive
discount to drive usage and to nullify the loss of idle
infrastructure.
BuildPiper enables software teams to use spot instances for
running various stateless, fault-tolerant, or flexible
applications such as containerized workloads, CI/CD, web
servers, high-performance computing (HPC), and test &
development workloads.
Cost Optimization with Spot Instances
07

Start/Stop/Cloning an Environment
Clone
Build with a developer-friendly mindset, BuildPiper allows
quick and hassle-free cloning of the environment details.
While BuildPiper makes adding a new environment to the
service extremely simple and easy, it also enables seamless
modification and cloning of the build & deploy details from an
already created environment.
This ability to clone environment details and makes the entire
process of creating a new environment extremely smooth and
painless. Unlike BuildPiper, not all management platforms
available in the market have this out-of-the-box functionality
to support trouble-free configuration of build &deploy details
from an existing environment.
Replica Sets
ReplicaSet’s objective is to maintain a stable set of replica Pods
that are running at any point in time. It is used to ensure and
guarantee the availability of a specified number of identical
Pods.

A ReplicaSet is defined with fields that mainly include,
Selector
for specifying how
to identify Pods that
it can acquire.
Number of replicas
hat indicates how
many Pods should
be maintained,
specifying the data of new
Pods that should be created
to meet the number of
replicas criteria.
A ReplicaSet completes its task by creating and deleting Pods as needed to
reach the desired number. A ReplicaSet uses its Pod template when it needs to
create new Pods.
Managed Services (Like ECS) vs Native
Kubernetes Setup
Leveraging Managed Kubernetes services such as Amazon’s ECS, Microsoft’s AKS,
and Google’s GKE can help enterprises in solving security, observability &
monitoring and networking challenges. Using a native Kubernetes setup with
baked-in features like security, compliance and observability is an alternative too.
BuildPiper is one such K8s deployment platform that helps in making Kubernetes-
Microservices application ready along with the ability to run zero-touch, fully -
automated & secured CI/CD pipelines.
Pod template

A Unified approach to Kubernetes &
Microservices Application
Management
BuildPiper emerges from our
cumulative experience of
managing platforms and
DevSecOps for 100+ microservices
journeys and making Kubernetes
simple & effective for application
developers. With Managed
Kubernetes, BuildPiper solves
cluster management issues and
enables secure and hassle-free
cluster creation or onboarding and
with its capabilities, help
enterprises in mitigating internal &
external security threats and
security risks within the cloud
environment. It provides real-time
insights into data and helps in
automating compliance and
security management.
With best-in-class capabilities for
Ingress & Namespace Management,
360-degree cluster view, use of
monitoring & log management tools,
extensive focus on Cost Optimisations,
BuildPiper brings in a holistic and
proactive approach to observability
spanning infrastructure, environments,
data, and applications. It empowers
the product and engineering teams to
derive value with 10X reduced time &
investments required on your
Kubernetes & microservices Journey.
Explore its functionalities like
Microservices Management, Security,
Compliance & Observability and
Secure CI/CD Pipelines setup along
with Managed Kubernetes. for your
use cases. Take a demo today!

ultimate guide to kubernetes deployment.pdf

Recommended

More Related Content

Similar to ultimate guide to kubernetes deployment.pdf (20)

More from Anshulkichara3 (7)

Recently uploaded (20)

ultimate guide to kubernetes deployment.pdf