Azure Service Fabric whats the purpose of different Services ,please give with examples and also step by step process for deployment
I think you need to take a look at the service fabric documentation.
Supported services
- Reliable Services, Reliable Actors, Guest Executable
Deployment - PowerShell, Visual Studio
Related
We have a Service Fabric cluster on-premise and would like to deploy code to it from Visual Studio Team Services. We use this cluster for testing and it does not have an endpoint exposed to the outside world. It is only accessible internally from inside our network.
From inside Team Services the normal way to deploy a Service Fabric application is with the "Service Fabric Application Deployment" task. This task requires a "Cluster Connection" parameter, or link to the Service Fabric Service endpoint that Team Services can access. On this cluster I can't provide an endpoint to the outside world, so this method won't work.
Is there a good, accepted way of accomplishing this? I'm considering looking at having an Agent on one of the Service Fabric nodes that can run a PowerShell script as part of the build process. I can kick off a PowerShell script on the node as part of the build process. If I could retrieve the artifacts from Team Services with this script I believe the rest of the release would be relatively straightforward.
Is this a good line of thought, or is there a more straightforward way to deploy to Service Fabric from Team Services without exposing an endpoint?
We have the same set up and using VSTS. We set up a On-Prem agent pool where agent is within our network. The agent is hook with VSTS so build and release can be trigger from VSTS. Agent have access to the artifact on VSTS and can download it for deployment. The different might be we set up a service fabric end point instead of using powershell.
Its a very simple set up and works well for us.Good luck
I have a bunch of services deploying as guest executables to service fabric and all seems fine. I was wondering if there was any point in porting the services to be native Fabric Service services.
Looking at the documentation I can't seem to find any benefits of having implementing them as such, am I missing something obvious?
If your services are stateless there is probably no compelling reason to migrate them into native stateless services. It could be different if your services were stateful; in this context I mean that they store some state inside the process.
The state in native stateful services is stored redundantly, so your services can cope with node failures. This could increase the resilience of your service. In general, you usually create native services in green field situations and rely on guest executables and containers in migration/hybrid situations.
Guest Executable is missing out on some advanced features but it is up to you to decide if you need them.
Benefits of running a guest executable in Service Fabric
There are several advantages to running a guest executable in a Service Fabric:
High availability. Applications that run in Service Fabric are made highly available. Service Fabric ensures that instances of an application are running.
Health monitoring. Service Fabric health monitoring detects if an application is running, and provides diagnostic information if there is a failure.
Application lifecycle management. Besides providing upgrades with no downtime, Service Fabric provides automatic rollback to the previous version if there is a bad health event reported during an upgrade.
Density. You can run multiple applications in a cluster, which eliminates the need for each application to run on its own hardware.
Discoverability: Using REST you can call the Service Fabric Naming service to find other services in the cluster.
I.e. There is something called Stateless Reliable Services - http://www.jamessturtevant.com/posts/Service-Fabric-Service-Types/
The above link will explain it more.
I have a series of WebApi self hostable services that I need to make available both on-premise and the internet. Currently they are only on-premise, but I was wondering will service fabric allow me to have an on premise cluster and azure hosted cluster connected and handle this hybrid scenario? Can I have a service fabric cluster with nodes both on premise and in azure?
I have it on my backlog to explore leveraging service fabric, but if this scenario was available we would bump up that priority.
Any details on implementing this or even an alternative solution would be greatly appreciated. We tried using Azure App Proxy as well for the internet exposure, but are having problems with the authentication headers going across as we are not using Azure AD.
It's possible to create a cluster that spans multiple locations. Like mentioned this article.
However you should realize that it's not a supported feature. If you make a mistake, loosing one of two locations will result in data loss.
I'd recommend using one cluster.
I found this from several months back on Application Insights and Service Fabric and I'm wondering if there is any new information.
I would really like to get CPU, Memory, Storage and other metrics out of service fabric and the reliable actors. Having it presented in a user friendly HUD like app insights provides would be awesome!
Thanks!
On the azure portal, you can now create a resource called 'Service Fabric Analytics' to create a nice dashboard for your cluster. Configure as cluster like described here. It's OMS based, not Appinsights though.
The Service Fabric Solution helps identify and troubleshoot issues
across your Service Fabric cluster, by providing visibility into how
your Service Fabric virtual machines are performing and how your
applications and micro-services are running. Available features
include: • Get insight into your Service Fabric framework • Get
insight into the performance of your Service Fabric applications and
micro-services • View events from your applications and micro-services
Data collected: Service Fabric Reliable Service Events, Service Fabric
Actor Events, Service Fabric Operational Events, Event tracing for
Windows events and Windows event logs. Requirements: This solution
will only work if you have set up Azure Diagnostics on your Service
Fabric VMs, and have configured OMS to collect data for your WAD
tables.
In service fabric with Eventflow https://github.com/Azure/diagnostics-eventflow you had a option to send the diagnostics data to multiple data stores like WAD Tables, OMS, elastic search and application insights.
Have a look at it. It is really straight forward and easily integrate with ETW events and will serve your purpose.
I have a bit of trouble finding differences about Azure and on-premise Service Fabric versions. I did read somewhere that on-premise version does not support auto-scaling, but this is easy to understand.
However, does on-premise version offer any type of operational capabilities such as resource managers, visual management of cluster, etc.?
The core Service Fabric platform is simply a runtime that gets installed on a set of virtual or physical machines. Once you tell those machines how to find each other, they form a cluster and provide a set of management capabilities that includes the Service Fabric Explorer UI, a REST API, and a TCP endpoint for PowerShell. All of that is common whether you're running on Azure, on-premises, or in another public cloud.
What's different in those environments is everything that lives outside of the machines that form the cluster. That includes:
Autoscaling
While Service Fabric can easily handle new machines being added and removed from the cluster, it has no knowledge of how that process actually works, so some external agent needs to handle it. In Azure, that's a virtual machine scale set.
Failure domain/Upgrade domain management
Good management of failure and upgrade domains is critical to ensuring availability and data reliability in Service Fabric. In Azure, clusters are automatically spread across FDs/UDs and maintenance is coordinated to avoid impact to your clusters. In other environments, this is your responsibility.
Cluster setup and management
In Azure, a Service Fabric cluster is a 1st class resource that can be created and managed through the Azure Resource Manager and the Azure portal. Outside of Azure, you must do that management using the cluster configuration JSON template.
Incidentally, just so there's no confusion since there are overloaded terms... you can't currently use the Azure Resource Manager (ARM) with Service Fabric outside of the Azure environment. However, Service Fabric's cluster resource manager is part of the core runtime and is available everywhere.
Diagnostics pipeline
By default, Service Fabric logging (on Windows) is done via ETW. However, without any component to pick up those events from the individual machines in the cluster and ship them somewhere for easy aggregation and inspection, the logs aren't very useful. In Azure, that process is handled by the Windows Azure Diagnostics (WAD) agent, whereas in other environments you are responsible for setting up that pipeline.
You don't get to use the resource manager on premises. You can access the Service Fabric Explorer at port 19080.
https://azure.microsoft.com/en-us/documentation/articles/service-fabric-deploy-anywhere/
https://azure.microsoft.com/en-us/documentation/articles/service-fabric-visualizing-your-cluster/
Powershell management & deployment will also work.