health | A library for marshaling and unmarshaling various EDI | Parser library

Is there a way of joining two dataframes via where a row in the first dataframe is joined with every row in the second dataframe if they share a word in common?

For example:

Since @nestjs/terminus doesn't provide a health check for Prisma, I'm trying to create it based on their Mongoose health check.

When I try:

I've been trying to get over this but I'm out of ideas for now hence I'm posting the question here.

I'm experimenting with the Oracle Cloud Infrastructure (OCI) and I wanted to create a Kubernetes cluster which exposes some service.

The goal is:

• A running managed Kubernetes cluster (OKE)
• 2 nodes at least
• 1 service that's accessible for external parties

The infra looks the following:

• A VCN for the whole thing
• A private subnet on 10.0.1.0/24
• A public subnet on 10.0.0.0/24
• NAT gateway for the private subnet
• Internet gateway for the public subnet
• Service gateway
• The corresponding security lists for both subnets which I won't share right now unless somebody asks for it
• A containerengine K8S (OKE) cluster in the VCN with public Kubernetes API enabled
• A node pool for the K8S cluster with 2 availability domains and with 2 instances right now. The instances are ARM machines with 1 OCPU and 6GB RAM running Oracle-Linux-7.9-aarch64-2021.12.08-0 images.
• A namespace in the K8S cluster (call it staging for now)
• A deployment which refers to a custom NextJS application serving traffic on port 3000

And now it's the point where I want to expose the service running on port 3000.

I have 2 obvious choices:

• Create a LoadBalancer service in K8S which will spawn a classic Load Balancer in OCI, set up it's listener and set up the backendset referring to the 2 nodes in the cluster, plus it adjusts the subnet security lists to make sure traffic can flow
• Create a Network Load Balancer in OCI and create a NodePort on K8S and manually configure the NLB to the ~same settings as the classic Load Balancer

The first one works perfectly fine but I want to use this cluster with minimal costs so I decided to experiment with option 2, the NLB since it's way cheaper (zero cost).

Long story short, everything works and I can access the NextJS app on the IP of the NLB most of the time but sometimes I couldn't. I decided to look it up what's going on and turned out the NodePort that I exposed in the cluster isn't working how I'd imagine.

The service behind the NodePort is only accessible on the Node that's running the pod in K8S. Assume NodeA is running the service and NodeB is just there chilling. If I try to hit the service on NodeA, everything is fine. But when I try to do the same on NodeB, I don't get a response at all.

That's my problem and I couldn't figure out what could be the issue.

What I've tried so far:

• Switching from ARM machines to AMD ones - no change
• Created a bastion host in the public subnet to test which nodes are responding to requests. Turned out only the node responds that's running the pod.
• Created a regular LoadBalancer in K8S with the same config as the NodePort (in this case OCI will create a classic Load Balancer), that works perfectly
• Tried upgrading to Oracle 8.4 images for the K8S nodes, didn't fix it
• Ran the Node Doctor on the nodes, everything is fine
• Checked the logs of kube-proxy, kube-flannel, core-dns, no error
• Since the cluster consists of 2 nodes, I gave it a try and added one more node and the service was not accessible on the new node either
• Recreated the cluster from scratch

Edit: Some update. I've tried to use a DaemonSet instead of a regular Deployment for the pod to ensure that as a temporary solution, all nodes are running at least one instance of the pod and surprise. The node that was previously not responding to requests on that specific port, it still does not, even though a pod is running on it.

Edit2: Originally I was running the latest K8S version for the cluster (v1.21.5) and I tried downgrading to v1.20.11 and unfortunately the issue is still present.

Edit3: Checked if the NodePort is open on the node that's not responding and it is, at least kube-proxy is listening on it.

So this seems to be an issue talked about here and there on StackOverflow with no real solution. So I have a bunch of tests that all pass when run individual. They even pass when run as a full test suite, EXCEPT when I add in my TestCase ExploreFeedTest. Now ExploreFeedTest passes when run by itself and it actually doesn't fail when run in the full test suite as in running python manage.py test, it causes another test HomeTest to fail, which passes on it's own and passes when ExploreFeedTest is commented out from the init.py under the test folder. I hear this is an issue with Django not cleaning up data properly? All my TestCase classes are from django.test.TestCase, because apparently if you don't use that class Django doesn't teardown the data properly, so I don't really know how to solve this. I'm also running Django 3.2.9, which is supposedly the latest. Anyone have a solution for this?

ExploreFeedTest.py

We've had a working Ansible AWX instance running on v5.0.0 for over a year, and suddenly all jobs stop working -- no output is rendered. They will start "running" but hang indefinitely without printing out any logging.

The AWX instance is running in a docker compose container setup as defined here: https://github.com/ansible/awx/blob/5.0.0/INSTALL.md#docker-compose

Standard troubleshooting such as restarting of containers, host OS, etc. hasn't helped. No configuration changes in either environment.

Upon debugging an actual playbook command, we observe that the command to run a playbook from the UI is like the below:

ssh-agent sh -c ssh-add /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data && rm -f /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data && ansible-playbook -vvvvv -u ubuntu --become --ask-vault-pass -i /tmp/awx_11021_0fmwm5uz/tmppo7rcdqn -e @/tmp/awx_11021_0fmwm5uz/env/extravars playbook.yml

That's broken down into three commands in sequence:

1. ssh-agent sh -c ssh-add /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data
2. rm -f /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data
3. ansible-playbook -vvvvv -u ubuntu --become --ask-vault-pass -i /tmp/awx_11021_0fmwm5uz/tmppo7rcdqn -e @/tmp/awx_11021_0fmwm5uz/env/extravars playbook.yml

You can see in part 3, the -vvvvv is the debugging argument -- however, the hang is happening on command #1. Which has nothing to do with ansible or AWX specifically, but it's not going to get us much debugging info.

I tried doing an strace to see what is going on, but for reasons given below, it is pretty difficult to follow what it is actually hanging on. I can provide this output if it might help.

So one natural question with command #1 -- what is 'ssh_key_data'?

Well it's what we set up to be the Machine credential in AWX (an SSH key) -- it hasn't changed in a while and it works just fine when used in a direct SSH command. It's also apparently being set up by AWX as a file pipe:

prw------- 1 root root 0 Dec 10 08:29 ssh_key_data

Which starts to explain why it could be potentially hanging (if nothing is being read in from the other side of the pipe).

Running a normal ansible-playbook from command line (and supplying the SSH key in a more normal way) works just fine, so we can still deploy, but only via CLI right now -- it's just AWX that is broken.

So the question then becomes "why now"? And "how to debug"? I have checked the health of awx_postgres, and verified that indeed the Machine credential is present in an expected format (in the main_credential table). I have also verified that can use ssh-agent on the awx_task container without the use of that pipe keyfile. So it really seems to be this piped file that is the problem -- but I haven't been able to glean from any logs where the other side of the pipe (sender) is supposed to be or why they aren't sending the data.

I have an application running on my local machine that uses React -> gRPC-Web -> Envoy -> Go app and everything runs with no problems. I'm trying to deploy this using GKE Autopilot and I just haven't been able to get the configuration right. I'm new to all of GCP/GKE, so I'm looking for help to figure out where I'm going wrong.

I was following this doc initially, even though I only have one gRPC service: https://cloud.google.com/architecture/exposing-grpc-services-on-gke-using-envoy-proxy

From what I've read, GKE Autopilot mode requires using External HTTP(s) load balancing instead of Network Load Balancing as described in the above solution, so I've been trying to get that to work. After a variety of attempts, my current strategy has an Ingress, BackendConfig, Service, and Deployment. The deployment has three containers: my app, an Envoy sidecar to transform the gRPC-Web requests and responses, and a cloud SQL proxy sidecar. I eventually want to be using TLS, but for now, I left that out so it wouldn't complicate things even more.

When I apply all of the configs, the backend service shows one backend in one zone and the health check fails. The health check is set for port 8080 and path /healthz which is what I think I've specified in the deployment config, but I'm suspicious because when I look at the details for the envoy-sidecar container, it shows the Readiness probe as: http-get HTTP://:0/healthz headers=x-envoy-livenessprobe:healthz. Does ":0" just mean it's using the default address and port for the container, or does indicate a config problem?

I've been reading various docs and just haven't been able to piece it all together. Is there an example somewhere that shows how this can be done? I've been searching and haven't found one.

My current configs are:

We have a bunch of health checks against third-party services. We want them to run periodically because when they go down it affects our app just like a bug in our code. Knowing that "it's them not us" reduces significant troubleshooting time.

We've set this health check up via github actions with a scheduled run, but we want a HealthCheck per third-party service. That way, the slack message on failure will be very specific of what is down. But that is going to create a lot of duplicated yml content.

I discovered something called github composite actions and it seems to be intended for solving this problem, but I can't find information about whether or not a composite action can live in a private repository.

The documentation of the uses key only mentions public repositories when it mentions repositories at all. Is there a way to make a composite action in a private repository and use it?

I tried making their hello world example, ran it, and it ran correctly. Then I made the action repo private, and the repo using the action's build failed saying:

Gist: Trying to write a custom filter on nested documents using painless. Want to write error checks when there are no nested documents to surpass null_pointer_exception

I have a mapping as such (simplified and obfuscated)

I am using actuator and in the application.properties file i have the following fields