networking | Networking for kubernetes | Networking library

Took my laptop out of house for a couple of days, didn't even get to turn it on during that time. Came back, ready to keep fiddling with my project but the page stopped working all of a sudden. I started getting ERR_ADDRESS_UNREACHABLE in the browser.

I've uninstalled homestead box, vagrant, virtualbox, with restart after each, re installed everything, same issue.

I can not ping the 192.168.10.10 address but I can SSH into the box no problem.

Running MacOS Big Sur, VirtualBox 6.1, Vagrant 2.2.18 and whatever the latest homestead version is. Really about quit programming altogether, this is super frustrating. I'd really appreciate any help. Thank you

Homestead.yaml

What I'm trying is to use Postgres and access it from DBeaver.

• Postgres is installed into wsl2 (Ubuntu 20)
• DBeaver is installed into Windows 10

According to this doc, if you access an app running on Linuc from Windows, localhost can be used.

However...

Connection is refused with localhost. Also, I don't know what this message means: Connection refused: connect.

Does anyone see potential cause for this? Any advice will be appreciated.

Note:

• The password should be fine. When I use psql in wsl2 and type in the password, psql is available with the password
• I don't have Postgres on Windows' side. It exists only on wsl2

I have a simple ingress configuration file-

I am amazed at how many topics on StackOverflow deal with finding out the endianess of the system and converting endianess. I am even more amazed that there are hundreds of different answers to these two questions. All proposed solutions that I have seen so far are based on undefined behaviour, non-standard compiler extensions or OS-specific header files. In my opinion, this question is only a duplicate if an existing answer gives a standard-compliant, efficient (e.g., use x86-bswap), compile time-enabled solution.

Surely there must be a standard-compliant solution available that I am unable to find in the huge mess of old "hacky" ones. It is also somewhat strange that the standard library does not include such a function. Perhaps the attitude towards such issues is changing, since C++20 introduced a way to detect endianess into the standard (via std::endian), and C++23 will probably include std::byteswap, which flips endianess.

In any case, my questions are these:

1. Starting at what C++ standard is there a portable standard-compliant way of performing host to network byte order conversion?

2. I argue below that it's possible in C++20. Is my code correct and can it be improved?

3. Should such a pure-c++ solution be preferred to OS specific functions such as, e.g., POSIX-htonl? (I think yes)

I think I can give a C++23 solution that is OS-independent, efficient (no system call, uses x86-bswap) and portable to little-endian and big-endian systems (but not portable to mixed-endian systems):

I need to configure the proxy manually in my emulator through Android Studio. From the official Android documentation, it is suggested that this change can be made in the "settings" tab of the emulator's extended controls. The problem is that it seems to me that this documentation is outdated, as this setting is no longer displayed in the "settings" tab of the Android Studio emulators' extended controls.

I am following this guide.

Ingress requests are getting logged. Egress traffic control is working as expected, except I am unable to log egress HTTP requests. What is missing?

I am running DynamoDB locally using the instructions here. To remove potential docker networking issues I am using the "Download Locally" version of the instructions. Before running dynamo locally I run aws configure to set some fake values for AWS access, secret, and region, and here is the output:

I have a networking layer that currently uses completion handlers to deliver a result on the operation is complete.

As I support a number of iOS versions, I instead extend the network layer within the app to provide support for Combine. I'd like to extend this to now also a support Async/Await but I am struggling to understand how I can achieve this in a way that allows me to cancel requests.

The basic implementation looks like;

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: