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I have an EKS node group with 2 nodes for compute workloads. I use a taint on these nodes and tolerations in the deployment. I have a deployment with 2 replicas I want these two pods to be spread on these two nodes like one pod on each node.

I tried using:

I have master-slave (primary-standby) streaming replication set up on 2 physical nodes. Although the replication is working correctly and walsender and walreceiver both work fine, the files in the pg_wal folder on the slave node are not getting removed. This is a problem I have been facing every time I try to bring the slave node back after a crash. Here are the details of the problem:

postgresql.conf on master and slave/standby node

The wordpress service is running confirmed by docker service ls and the blog is up when visiting the blog url (which gets taken down after executing docker stack rm wordpress).

Once wordpress is deployed using docker stack deploy the stack looks like this:

We have setup Redis with sentinel high availability using 3 nodes. Suppose fist node is master, when we reboot first node, failover happens and second node becomes master, until this point every thing is OK. But when fist node comes back it cannot sync with master and we saw that in its config no "masterauth" is set.
Here is the error log and Generated by CONFIG REWRITE config:

I am working on setting up a three node Docker swarm for a web application I support. Initially, we have Traefik setup as a reverse proxy. Traefik and the web app both run on the same web server and the web server is in a single node docker swarm. We are trying to add two additional nodes for application stability.

At the moment, I'm simply trying to understand Traefik load balancing along with Docker Swarm. I am deploying a Traefik v1.7 stack and including the whoami application. The docker-compose file for this first past looks like:

I am trying to connect to Firestore from code running on GKE Container. Simple REST GET api is working fine, but when I access the Firestore from read/write, I am getting Missing or insufficient permissions.

I have a secret:

i'm working on a new idea for which I've created a setup as follows on Azure Kubernetes:

1. 1 cluster
2. 1 node pool in said cluster
3. 1 deployment which creates 2 pods in the pool
4. 1 load balancer service balancing requests between the 2 pods

I'm trying to submit a json request into the loadbalancer from outside the cluster with an AKS IP, to which i encounter 502 Bad Gateway issues.

This is my deployment file

I am trying to have 1 redis master with 2 redis replicas tied to a 3 Quorum Sentinel on Kubernetes. I am very new to Kubernetes.

My initial plan was to have the master running on a pod tied to 1 Kubernetes SVC and the 2 replicas running on their own pods tied to another Kubernetes SVC. Finally, the 3 Sentinel pods will be tied to their own SVC. The replicas will be tied to the master SVC (because without svc, ip will change). The sentinel will also be configured and tied to master and replica SVCs. But I'm not sure if this is feasible because when master pod crashes, how will one of the replica pods move to the master SVC and become the master? Is that possible?

The second approach I had was to wrap redis pods in a replication controller and the same for sentinel as well. However, I'm not sure how to make one of the pods master and the others replicas with a replication controller.

Would any of the two approaches work? If not, is there a better design that I can adopt? Any leads would be appreciated.