In this virtual-meetup session held on 28th August, 2021 by Patryk Bandurski (MuleSoft Ambassador) we cover a detailed part of SLB, DLB and Web Sockets.

1. 28th August 2021
Calicut MuleSoft Meetup Group
#3 Understanding SLB, DLB and Web Sockets

2. Safe Harbour Statement
● Both the speaker and the host are organizing this meet-up in individual capacity only. We are
not representing our companies here.
● This presentation is strictly for learning purposes only. Organizer/Presenter do not hold any
responsibility that same solution will work for your business requirements.
● This presentation is not meant for any promotional activities.
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3. Organizers
Fathima Farzana John Mathew Philip
NJC Labs NJC Labs
MuleSoft / Integration Developer MuleSoft / Integration
Developer
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4. MuleSoft Developer Research Survey
● Have you done the survey yet?
● This will help MuleSoft to better the contents and materials making it more awesome!!
● Visit https://survey.developernation.net/name/mu_3q2021
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5. 5
● Introductions
● MuleSoft Load Balancers
● Demo
● Web Sockets
● Demo
● Trivia Quiz
● Wrap-Up
Agenda

6. ● Subject Matter Expert at PwC Poland
● MuleSoft Ambassador
● MuleSoft Meetup Leader for Warsaw, Poland
● Working with MuleSoft products for over 8 years now
● One of Salesforce Trailblazers
https://trailhead.salesforce.com/trailblazers/patryk-bandurski
Speaker
Check out my integration blog
https://ambassadorpatryk.com/blog
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7. All contents © MuleSoft, LLC
MuleSoft Load Balancers

8. All contents © MuleSoft, LLC
Shared Worker Cloud
<app-name>
<app-name>
Shared Load Balancer
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Public Internet
Shared Load Balancer
HTTP 8081 ~ 80
HTTPS 8082 ~ 443
http://<app-name>.<region>.cloudhub.io
http://mule-worker<app-
name>.<region>.cloudhub.io:<port>

9. All contents © MuleSoft, LLC
Private Worker Cloud
<app-name>
<app-name>
Shared Load Balancer with VPC
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Public Internet
HTTP 8091 ~ 80
HTTPS 8092 ~ 443
http://<app-name>.<region>.cloudhub.io
http://mule-worker<app-
name>.<region>.cloudhub.io:<port>
Shared Load Balancer

10. All contents © MuleSoft, LLC
Private Worker Cloud
<app-name>
<app-name>
Dedicated Load Balancer
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Public Internet Dedicated Load Balancer
VPC HTTP 8091 ~ 80
VPC HTTPS 8092 ~ 443
<lb-name>.lb.anypointdns.net/<app-name>
http://mule-worker<app-
name>.<region>.cloudhub.io:<port>
Mapping Rules <lb-name>.lb.anypointdns.net/<app-name>
<app-name>.<region>.cloudhub.io
http://mule-worker-internal-<app-name>.<region>.cloudhub.io:<port>

11. All contents © MuleSoft, LLC
Shared vs Dedicated Load Balancer
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Shared Load Balancer Dedicated Load Balancer
• OOB Basic load balancing functionality
• TCP load balancing
• No custom SSL certificates or proxy rules
• No Custom Domain Names
• Rate Limits: under 100 transactions per
second, exceed returns a service
unavailable response, MuleSoft
monitors/scales by region
• Supports TLS 1.1, 1.2
• Routes HTTPS traffic to port 8082
• Routes HTTP traffic to port 8081
• Configurable load balancing features within an
Anypoint VPC (Virtual Private Cloud)
• Handles load balancing between CloudHub workers
• Define TLS configurations to provide custom certs
• Optionally enforce two-way TLS client authentication
• Configure proxy rules that map applications to
custom domain
• Custom Domain Names
• Must create Anypoint VPC
• Associate multiple environments with same VPC
• Use same DLB for all environments

12. All contents © MuleSoft, LLC
Vanity or Custom Domain Names
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● You can create a mapping rule to rename a Mule application, so it can be
accessed through a different domain name within your corporate DNS domain
name.
○ Example: <my-app>-meetup-prod.cloudhub.io
● In addition, you can set a CNAME record in DNS nameserver to map the <lb-
name>.lb-anypointdns.net => to "vanity" domain.
○ Example: <lb-name>-meetup-prod.com

13. All contents © MuleSoft, LLC
Mapping Rules
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• Input Path: The URI the client requests (default) /{my-app}/
• Target App: The Name of the CloudHub application that processes the request {app}-example
• Output Path: The URI string to pass to the app (can not contain patterns)
• Protocol: http, https, WebSockets, WebSockets over SSL/TLS

14. All contents © MuleSoft, LLC
Mapping Rules using Patterns
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• Pattern is a string that defines a template for matching input text
• {pattern-value} where pattern-value is a variable
• Results of this mapping <lb-name>.lb.anypointdns.net/{app}
• Redirects to {app}.cloudhub.io
https://docs.mulesoft.com/runtime-manager/lb-mapping-rules

15. All contents © MuleSoft, LLC
DEMOS

16. WebSockets support in MuleSoft
What is a WebSocket?
● Duplex communication channel
● Single TCP connection
Supported operations
● Sending message
● Broadcasting
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17. All contents © MuleSoft, LLC
DEMOS

18. Trivia Quiz

20. 1. What is the default HTTP Mule Port used on CloudHub?
A. 8081
B. 80
C. 8082
D. 8091
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21. 2. DLB is located within VPC
A. TRUE
A. FALSE
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22. 3. Which prefix allow to connect to application using its private IP (from VPC)?
A. mule-worker-my-app.cloudhub.io
A. mule-worker-internal-my-app.cloudhub.io
A. my-app.cloudhub.io
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23. 23
● Share:
○ Tweet using the hashtag #MuleSoftMeetups and #CalicutMuleSoftMeetups
○ Invite your network to join: https://meetups.mulesoft.com/calicut/
● Feedback:
○ Fill out the survey feedback and suggest topics for upcoming events
○ Contact MuleSoft at meetups@mulesoft.com for ways to improve the program
What’s next?

24. Thank you