healthy | rack app for monitoring application health | Monitoring library

I am trying to create a class that can be use to serialize and deserialize JSON. One of the elements that I need to represent is a list of pairs where the first is a string and the second is a boolean. The class should read/write the following JSON snippet:

I applied case_when to a text data of thousands of rows to detect strings with multiple conditions and replace them but got a wrong result because case_when doesn't execute the remaining conditions once a condition is met. I have seen a solution in How to detect more than one regex in a case_when statement, but the solution does not have multiplicity of multiple conditions such as in my data.

Any alternative to case_when will be is appreciated.

This is the dummy data:

I have the minikube environment as the following: -

• Host OS: CentOS Linux release 7.7.1908 (Core)
• Docker: Docker Engine - Community 20.10.7
• minikube: minikube version: v1.20.0

I would like to add some additional host mapping (5+ IP and name) to the /etc/hosts inside the minikube container. Then I use the minikube ssh to enter to the shell and try to echo "172.17.x.x my.some.host" >> /etc/hosts. There is an error as -bash: /etc/hosts: Permission denied since the user who login to this shell is a docker, not a root.

I also found that at the host machine there is a docker container named minikube running, by using the docker container ls. Even I can go to this container with root by using docker exec -it -u root minikube /bin/bash. I understand that it is a kind of tweak and may be a bad practice. Especially it is too much tasks.

Regarding to the docker and docker-compose which provides the --add-host and extra_hosts respectively to add hostname mappings, Does the minikube provide it? Is there any good practice to achieve this within the minikube and/or system administrator point-of-view good practice?

After echo 172.17.x.x my.some.host > ~/.minikube/files/etc/hosts and start the minikube, there are some error as the following: -

I am trying to create a ec2 instance but I am facing a problem where I am totally unable to ssh inside even if my security group has port 22 opened.

My terraform looks like this.

My project is a simple agent based simulation that models the spread of disease. The simulation consists of agents and map, the classes that belong to agents are: Civil, Medic and Animal. Currently I'm trying to fill the map according to the size of populations: noMedics, noCivils, noAnimals and amount of healthy, ill, and immune agents that should add up to total population of both humans and animals. The way that health status of an agent is determined is simple - random.nextInt(3), 0 being healthy, 1 ill and 2 immune. The way that I would usually fill the map with one of the agent class is as follows:

I am trying to set up a Hyperledger Fabric Network with Hyperledger Explorer. I spin up a VM on the digital ocean cloud with ubuntu OS. From there, I spin up 3 orderers node, and 2 peers node. Which result in total of 5 nodes. (I am using RAFT setup).

However, I encounter the error as below when trying to start the hyperledger fabric explorer docker-container images.

I'm currently struggeling with my BibLaTeX file. I wanna separate the bibtex entries which are connected by the last name of the author (as you can see with the first and second entry). Also i wanna turn the (Hrsg.) Tag like the rest of the author information in bold.

below you can find a mre where the magic happens.

regards and stay healthy!

I have a dataframe which looks like this and i would like to calculate the percentage of the columnB comparing to columnA. In this example in columnB i have 3 values which are identic to the values of columnA

I have a deployment with scale=1 but when I run get pods, i have 2/2... When I scale the deployment to 0 and than to 1, I get back 2 pods again... how is this possible? as i can see below prometeus-server has 2: