I have straight forward use case in which I have to migrate an web application running on redhat openshift cluster which needs to be migrated to Azure kubernetes Service.
I have experience working with AKS but not with Openshift cluster.
Can you guys give me any feedback on this, I am not sure of what I should be considering for this migration & there is no online resource I could find to study on it.
Please share your thoughts on this use case regarding any prerequisites that are required for this migration or anything else I should consider for this migration any resource would be highly appreciated.
Related
I am an IoT Infrastructure Engineer student at Howest Kortrijk. For a project in my final year I have to figure out the following question, "How to build a failover Kubernetes cluster between an on-premises and cloud environment using Rancher?".
I have sat up a k3s cluster myself and tried to install Rancher, but without success. So much for my problems with the technical solution. In fact, I am left with another question. Is it actually still relevant to set up everything yourself and dabble with this.
Wouldn't it be better to run everything in the cloud?
Surely there are plenty of solutions for this?
Are running things on-premises still pertinent?
I myself don't have much experience with this yet. But hopefully there are experts here with a bit more experience who can answer these questions.
I recently attended an Azure (for developers) session and it got me thinking.
I am in the process of migrating Atlassian Confluence from on-prem to Kubernetes. I found the official docker image for confluence and was able to spin up the application. I need to configure ssl and i already have the key and certificate. I tried to import the certificates and restarted the server.xml and it is not working. Has any worked on confluence migration from on-prem to kubernetes/docker and if any can provide a link/experience related to the same, it would be helpful.
Regards,
John
It's certainly possible, the healthcheck might be tricky and the reason for that is there is no automated install as far as I'm aware when it becomes live, meaning there will always been a manual configuration stage.
You're best looking at some package manager examples for this, which for Kubernetes is Helm. This allows you to iterate and rollback quickly.
Have a look at this example) which is for Jira, but the same flow should apply. Confluence and Jira are heavily related, so it should be relevant.
Need some suggestions & tips, Please let me know if anyone build the infrastructure on K8s with Oracle Weblogic, DB & SOA (OSB, BIPEL, B2B, BAM).
If anyone build the infrastructure please let me know the benefits & drawbacks. Is it recommended to build it.
Thanks
If you follow best practices; do not install these on Kubernetes. Kubernetes is very good at for micro-services and stateless applications. Of course Kubernetes support stateful applications like cassandra / nodejs ..etc applications you have a chance to deploy applications on Kubernetes using StatefullSets. Kubernetes treats statefull sets different than other resource objects. A StetfullSet Pod is always scheduled on the same machine as long as you do not delete them.Please take a look at the link https://kubernetes.io/docs/tutorials/stateful-application/cassandra/ You can deploy stateful applications on Kubernetes using the link above
https://blogs.oracle.com/weblogicserver/weblogic-on-kubernetes,-try-it
https://blogs.oracle.com/weblogicserver/automatic-scaling-of-weblogic-clusters-on-kubernetes-v2
We ran weblogic applications on docker swarm but not on kubernetes. All the configuration on kubernetes for stateful applications is pretty easy compared to docker swarm.
I have setup a Hyperledger Fabric V1.0 Network by following the Hyperledger-fabric docs and using fabric-sdk-java client I am able to communicate with the network from my java application. Now everything is working fine in the development setup. But still I am not getting the clear picture about its production level implemenation. Looking for some valuable suggestions for the following points to make it production live.
Will it be possible to use this setup for production? then how can I build my network using this docker-compose setup? Which are the options available for production hosting of the network?
If it is possible to setup in production, should I run this docker-compose set up and all in all the peer system's, then how will I configure the docker-compose.yaml to define each of the peers/organisations which are in different system?
I have found Bluemix Blockchain Service as an alternative, but it is having high monthly charges. So is there any alternative to deploy myown Hyperledger Fabric V1.0 network by defining myown peers and organization?
I think that for a production deployment, you'd likely want to implement Swarm or Kubernetes. See Hyperledger Cello for instance. You will also want to have a process and automation for managing the code going forward. Updating images, chaincode, etc. Further, you might want to further automate some of the on-boarding process which at present is rather bare bones.
As noted above, the Docker Compose is designed for a single system. You'd likely want to use Swarm or Kubernetes to manage nodes on different systems and you want decentralized operations when you are engaging multiple entities into a consortia where the members want to choose where they run their nodes.
There is a developer sandbox offering that you can deploy to IBM's Container service (Kubernetes) but you won't be getting the benefits of the crypto acceleration, HSM, and added security of the LinuxOne platform on which IBM deploys the IBM Blockchain Platform. The good things in life may be free, but I would want to have the added value of a vendor provided cloud offering like IBM Blockchain Platform for my production system. YMMV.
I am reading the docs about service fabric and was also interested to review how to setup a cluster with multiple VM's, but so far I can only guess based on the devclustersetup.ps1 / it's xml file, but I didn't see any docs on it which explains the various configurations and/or API's.
What I would need is how to set up a simple cluster, how to add/remove nodes, monitoring, setting up resource constraints per node etc so I can setup a sample cluster and test few things.
So far I've done these:
installed VC runtime ( as web pi installer fails without it )
installed service fabric and the SDK ( got the installer out of the web pi installers )
tried to change the sample xml, adding multiple hosts, but then with that I ran into the IPv6 only issue in my setup ( see my other question ), so it didnt work out
Thanks
We are working on NanoServer support for Service Fabric. (I am unable to respond to the comment asking about it because I apparently don't have enough points).
Setting up a multi-machine cluster is not supported at this time so you won't find any documentation explaining how to do it.
There will be a public preview of the service in Azure later this year and the platform will be available as part of Windows Server 2016 for on-premise deployments. As those options become available, there will be plenty of guidance explaining how to setup and manage your cluster.
UPDATE: 2016-03-31
Standalone installation on-prem or in another cloud is now available in public preview for Windows Server 2012 R2 and up.