TL;DR You can share PV and PVC within the same project/namespace for shared volumes (nfs, gluster, etc…), you can also access your shared volume from multiple project/namespaces but it will require project dedicated PV and PVCs, as a PV is bound to single project/namespace and PVC is project/namespace scoped. Below I’ve tried to illustrate the … Read more
You need to do your changes in the deployment config but not in the pod. Because OpenShift treats pods as largely immutable; changes cannot be made to a pod definition while it is running. https://docs.openshift.com/enterprise/3.0/architecture/core_concepts/pods_and_services.html#pods If you make some changes in deployment config and save them, pod will restart and and your changes will take … Read more
I’m using this approach in OpenShift, so it should be applicable in Kubernetes as well. Try to put your script into a configmap key/value, mount this configmap as a volume and run the script from the volume. apiVersion: batch/v1 kind: Job metadata: name: hello-world-job spec: parallelism: 1 completions: 1 template: metadata: name: hello-world-job spec: volumes: … Read more
Yes there are This is a very good post I found on the subject Heroku Alternatives : For Deploying Rails Applications I went over the options there one by one and, to my humble opinion, OpenShift is the best option for a small-medium website, at least for the beginning of developing and creating a POC\Prototype … Read more
I used a middleware CorsMiddleware but forget to install it so after install, it works perfectly. pip install django-cors-headers So check something like it you may miss something like it.
if you are using Windows, you can try the following steps: look for your ssh public key usually you can find it at c:\\users\\YOUR_USERNAME\\.ssh copy your openshift public key to your git’s ssh-key folder suppose we have git in d:\\git then we need to copy the public key from c:\\users\\YOUR_USERNAME\\.ssh to d:\\git\\.ssh try if it … Read more
Solution 01) Sign up to cloudflare 02) Set these cname rules: mydomain.com > appname-username.rhcloud.com (this will utilise ‘cname flattening’) www > mydomain.com 03) Set page rules: http://www.mydomain.com/* > http://mydomain.com/$1 04) Set alias in OpenShift to mydomain.com 05) Make sure GoDaddy DNS record doesn’t have any conflicting cname or A record set up. 06) Let it … Read more
A DeploymentConfig (DC) in OpenShift is more or less equivalent to a Kubernetes Deployment, nowadays. Main difference (besides that one is using ReplicationController and the other using ReplicaSet as you rightly pointed out) is that there are a few things you can do with a DeploymentConfig (around triggers) that you can’t do with a Deployment. … Read more
You are gonna to dig yourself… deep 🙂 Simplest and most clean approach with no any doubt is creating a single application serving data for both, BE and FE, where you differ response (JSON vs HTML) by the URL, pseudo routes: GET /products/:id controllers.Frontend.productHtml(id) GET /backend/products/:id controllers.Backend.productJson(id) Benefits: single deployment (let’s say to Heroku) name … Read more
You can simply reference a ServiceAccount from another namespace in the RoleBinding: apiVersion: rbac.authorization.k8s.io/v1beta1 kind: Role metadata: name: pod-reader namespace: ns2 rules: – apiGroups: [“”] resources: [“pods”] verbs: [“get”, “list”, “watch”] — apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: name: pod-reader-from-ns1 namespace: ns2 roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: pod-reader subjects: – kind: ServiceAccount name: ns1-service-account namespace: … Read more