Prashant Shahi prashant-shahi

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🇫🇷 Cette liste en français

How to cross compile Go with CGO programs for a different OS/Arch

It is possible to compile Go programs for a different OS, even though go build says otherwise.

You'll need:

a valid toolchain for the platform/os you're targetting
Go Tip (works on 1.1 and 1.2rc1 but you might as well be on tip)
golang-crosscompile helper script https://github.com/davecheney/golang-crosscompile
the patch provided

I have created a local Kubernetes cluster with kind. Following are changes you need to get metric-server running on Kind.

Deploy latest metric-server release.

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.5.0/components.yaml

Within existing arguments to metric-server container, you need to add argument --kubelet-insecure-tls.

CPU: percentage of limit

A lot of people land when trying to find out how to calculate CPU usage metric correctly in prometheus, myself included! So I'll post what I eventually ended up using as I think it's still a little difficult trying to tie together all the snippets of info here and elsewhere.

This is specific to k8s and containers that have CPU limits set.

To show CPU usage as a percentage of the limit given to the container, this is the Prometheus query we used to create nice graphs in Grafana:

sum(rate(container_cpu_usage_seconds_total{name!~".*prometheus.*", image!="", container_name!="POD"}[5m])) by (pod_name, container_name) /

	#
	# CORS header support
	#
	# One way to use this is by placing it into a file called "cors_support"
	# under your Nginx configuration directory and placing the following
	# statement inside your location block(s):
	#
	# include cors_support;
	#
	# As of Nginx 1.7.5, add_header supports an "always" parameter which

	import com.sun.net.httpserver.HttpExchange;
	import com.sun.net.httpserver.HttpHandler;
	import com.sun.net.httpserver.HttpServer;

	import java.io.IOException;
	import java.io.OutputStream;
	import java.net.InetSocketAddress;

	public class SimpleHttpServer {
	public static void main(String[] args) throws IOException {

	[
	"alice",
	"bob",
	"charlie",
	"david",
	"eve",
	"frank",
	"grace",
	"heidi",
	"ivan",

	[
	"akash",
	"bharat",
	"chandu",
	"dinesh",
	"ekta",
	"farhan",
	"gaurav",
	"harish",
	"isha",

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