Lab 9.1: Workaround Instrumentation Exercise in Python and Go

For those of you who didn't get the 9.2 lab to work for me, I've found a workaround in Python:
- Change to instrumentation code working branch:
git checkout instrumented
- Check if python2 is installed with pip:
python2 --version
if python2 is no installed:
sudo apt-get install python2.7
if pip points to python3-pip and pip2.7 is no installed:
wget https://bootstrap.pypa.io/pip/2.7/get-pip.py
pip2.7 install prometheus-client
Or
pip install prometheus-client -> only if pip points to a python2 version
- Then run the server:
python2 server.py
That worked for me
It would be nice if the examples were updated to python3...
Comments
-
For go I've tried this with no luck.
go env -w GO111MODULE=off
go get -d
go run main.goBut found this error:
github.com/prometheus/common/expfmt
../../go/src/github.com/prometheus/common/expfmt/decode.go:89:38: cannot use v (variable of type *io_prometheus_client.MetricFamily) as protoreflect.ProtoMessage value in argument to pbutil.ReadDelimited: *io_prometheus_client.MetricFamily does not implement protoreflect.ProtoMessage (missing method ProtoReflect)
../../go/src/github.com/prometheus/common/expfmt/encode.go:120:40: cannot use v (variable of type *io_prometheus_client.MetricFamily) as protoreflect.ProtoMessage value in argument to pbutil.WriteDelimited: *io_prometheus_client.MetricFamily does not implement protoreflect.ProtoMessage (missing method ProtoReflect)It would be fine if examples were updated and fixed...
0 -
You can also run the python script with python3. But you have to change the imports to this:
from http.server import BaseHTTPRequestHandler
from http.server import HTTPServer
from socketserver import ThreadingMixIn0
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