kubernetes VS dapr

This is my first attempt to install and use Kubernetes. I am trying to install an environment on Mac for developing my own apps and deploying them for test locally with Kubernetes. I am familiar with using Vagrant, VirtualBox and Docker for the same purpose. When I saw this page https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/getting-started-guides/vagrant.md I assumed it would be trivial. I executed these lines:

I see in the docs how do do this for pods, but I want to use a replication controller to manage my pods, ensuring that there is always one up at all times.

kube-apiserver.service - Kubernetes API Server Loaded: loaded (/usr/lib/systemd/system/kube-apiserver.service; enabled) Active: active (running) since Mon 2015-08-24 15:03:07 UTC; 5min ago Docs: https://github.com/GoogleCloudPlatform/kubernetes Main PID: 13663 (kube-apiserver) CGroup: /system.slice/kube-apiserver.service └─13663 /usr/bin/kube-apiserver --logtostderr=true --v=0 --etcd\_servers=http://127.0.0.1:4001 --address=0.0.0.0 --port=8080 --kubelet\_port=10250 --allow\_privileged=false --service-cluster-ip-range=10.254.0.0/16 --admission\_control=NamespaceAutoProvision,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota --service\_account\_key\_file=/etc/kubernetes/certs/serviceaccount.key How can i fix this error?

I've read that AWS does not support Kubernetes and builds their own Docker orchestration engine EC2 Container Service. However, on Kubernetes getting-started -page there is a guide on how to run Kubernetes on AWS: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/getting-started-guides/aws.md

I heard here it may be https://github.com/kubernetes/kubernetes/blob/master/cluster/kube-push.sh. If that is the case how does kube-push.sh relate to https://github.com/GoogleCloudPlatform/kubernetes/blob/master/cluster/gce/upgrade.sh?

On this page in the Kubernetes docs Pods, it states

I am trying to consume an event stream provided by the Kubernetesapi using the requests module. I have run into what looks like abuffering problem: the requests module seems to lag by one event.

I read "In other words, the system's behavior is level-based rather than edge-based" from kubernetes documentation:https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/api-conventions.md

I am following the Fedora getting started guide (https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/getting-started-guides/fedora/fedora_ansible_config.md) and trying to run the pod fedoraapache. But kubectl always shows fedoraapache as pending:

systemctl status -l kubelet● kubelet.service - Kubernetes Kubelet Server Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled) Active: active (running) since lun 2016-04-04 08:08:59 CEST; 9min ago Docs: https://github.com/GoogleCloudPlatform/kubernetes Main PID: 2112 (kubelet) Memory: 39.3M CGroup: /system.slice/kubelet.service └─2112 /usr/bin/kubelet --logtostderr=true --v=0 --api-servers=http://kubernetes-master:8080 --address=0.0.0.0 --allow-privileged=false --pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure:latestapr 04 08:13:33 kubernetes-minion1 kubelet[2112]: W0404 08:13:33.877859 2112 kubelet.go:1690] Orphaned volume "167d0ead-fa29-11e5-bddc-064278000020/default-token-0dci1" found, tearing down volumeapr 04 08:13:53 kubernetes-minion1 kubelet[2112]: W0404 08:13:53.887279 2112 kubelet.go:1690] Orphaned volume "9f772358-fa2b-11e5-bddc-064278000020/default-token-0dci1" found, tearing down volumeapr 04 08:14:35 kubernetes-minion1 kubelet[2112]: I0404 08:14:35.341994 2112 provider.go:91] Refreshing cache for provider: *credentialprovider.defaultDockerConfigProviderapr 04 08:14:35 kubernetes-minion1 kubelet[2112]: E0404 08:14:35.397168 2112 manager.go:1867] Failed to create pod infra container: impossible: cannot find the mounted volumes for pod "wildfly-rc-oroab\_default"; Skipping pod "wildfly-rc-oroab\_default"apr 04 08:14:35 kubernetes-minion1 kubelet[2112]: E0404 08:14:35.401583 2112 pod\_workers.go:113] Error syncing pod 167d0ead-fa29-11e5-bddc-064278000020, skipping: impossible: cannot find the mounted volumes for pod "wildfly-rc-oroab\_default"apr 04 08:14:58 kubernetes-minion1 kubelet[2112]: E0404 08:14:58.076530 2112 manager.go:1867] Failed to create pod infra container: impossible: cannot find the mounted volumes for pod "wildfly-rc-1aimv\_default"; Skipping pod "wildfly-rc-1aimv\_default"apr 04 08:14:58 kubernetes-minion1 kubelet[2112]: E0404 08:14:58.078292 2112 pod\_workers.go:113] Error syncing pod 9f772358-fa2b-11e5-bddc-064278000020, skipping: impossible: cannot find the mounted volumes for pod "wildfly-rc-1aimv\_default"apr 04 08:15:23 kubernetes-minion1 kubelet[2112]: W0404 08:15:23.879138 2112 kubelet.go:1690] Orphaned volume "56257e55-fa2c-11e5-bddc-064278000020/default-token-0dci1" found, tearing down volumeapr 04 08:15:28 kubernetes-minion1 kubelet[2112]: E0404 08:15:28.574574 2112 manager.go:1867] Failed to create pod infra container: impossible: cannot find the mounted volumes for pod "wildfly-rc-43b0f\_default"; Skipping pod "wildfly-rc-43b0f\_default"apr 04 08:15:28 kubernetes-minion1 kubelet[2112]: E0404 08:15:28.581467 2112 pod\_workers.go:113] Error syncing pod 56257e55-fa2c-11e5-bddc-064278000020, skipping: impossible: cannot find the mounted volumes for pod "wildfly-rc-43b0f\_default" Could someone, kindly, help me?Thanks in advance.

Diagrid Catalyst is a Developer API platform providing a brand-new approach to distributed application development. Using the Catalyst APIs, powered by the Dapr open source project, developers can overcome the complexity of rewriting common software patterns and achieve higher productivity by offloading infrastructure concerns from their code to Catalyst.

The following two examples are open-source projects maintained by Fermyon with contributions from companies like Microsoft and SUSE. The first is Spin, which allows us to use WebAssembly to create Serverless applications. The second, SpinKube, combines some of the topics I'm most excited about these days: WebAssembly and Kubernetes Operators :) The official website says, "By running applications in the Wasm abstraction layer, SpinKube offers developers a more powerful, efficient, and scalable way to optimize application delivery on Kubernetes." By the way, this post shows how to integrate SpinKube with Dapr, another technology I'm very interested in, and I should write some posts soon.

Speaking of this has anyone had much experience with Dapr (https://dapr.io/) before?

I always thought this was a particularly interesting approach from Microsoft where they use this pattern to essentially take the complexity of micro services and instead try and keep it as simple as a normal .NET application but (and I think this is the clever part) in both a vendor and language neutral way.

But all of a sudden it means you can start removing all kinds of cruft and random SDKs from your codebase and push almost all of your interactions with the outside world into something like this .

Azure Container Apps hosting of Azure Functions is a way to host Azure Functions directly in Container Apps - additionally to App Service with and without containers. This offering also adds some Container Apps built-in capabilities like the Dapr microservices framework which would allow for mixing microservices workloads on the same environment with Functions.

Having containers is nice but everything (well ... nearly everything 😉) gets better with Dapr as an outstanding tool for app development in the container-based area. Here we go what might be worth a look:

Anyone using or planing to use darp Distributed application platform runtime as a microservices platform? https://dapr.io/

A CNCF project, the Distributed Application Runtime (Dapr) provides APIs that simplify microservice connectivity. Whether your communication pattern is service to service invocation or pub/sub messaging, Dapr helps you write resilient and secured microservices. Essentially, it provides a new way to build microservices by using the reusable blocks implemented as sidecars.

Dapr is a runtime that implements common patterns such as pub/sub, state storage, etc. It runs as a sidecar to your app. Your app then interfaces with it using an sdk or http calls to use said patterns instead of implementing those patterns directly yourself. Seems pretty cool to me, but you can find out more at https://dapr.io/.

- Over 21k stars on GitHub, see the core repo and devstats.