Readme and Docker samples

Docker/al2/Dockerfile

@@ -0,0 +1,8 @@
+FROM amazonlinux:latest
+
+RUN yum install python3 pip pip3 git -y
+RUN  pip3 install git+https://github.com/centriascolocation/packages-prom-exporter.git
+
+EXPOSE 8000
+
+CMD ["/usr/local/bin/packages-prom-exporter"]

Docker/ubuntu/Dockerfile

@@ -0,0 +1,8 @@
+FROM ubuntu:20.04
+
+RUN  apt-get update && apt-get install python3 pip python3-apt git -y
+RUN  pip3 install git+https://github.com/centriascolocation/packages-prom-exporter.git
+
+EXPOSE 8000
+
+CMD ["/usr/local/bin/packages-prom-exporter"]

README.md

@@ -0,0 +1,114 @@
+# Packages prom exporter
+
+This Prometheus Exporter informs you about the current Yum and APT updates.
+
+## Requirements
+
+The exporter requires Python3 and pip3 for installation.
+
+### Ubuntu / Debian
+
+```shell
+apt-get update && apt-get install python3 pip python3-apt git -y
+```
+
+### Red Hat based
+
+```shell
+yum install python3 pip3 git -y
+```
+
+## Installation
+
+```shell
+pip3 install git+https://github.com/centriascolocation/packages-prom-exporter.git
+```
+
+### systemd
+
+Create this file ```/etc/systemd/system/packages-prom-exporter.service```:
+
+```shell
+Unit]
+Description=This Prometheus Exporter informs you about the current Yum and APT updates.
+
+[Service]
+ExecStart=/usr/local/bin/packages-prom-exporter
+
+[Install]
+WantedBy=multi-user.target
+```
+
+And run this command to enable und start the service:
+```shell
+sudo systemctl enable --now packages-prom-exporter.service
+```
+
+## Let's see
+
+
+For local testing, there are two Docker files in the Docker directory.
+
+### Ubuntu
+
+```shell
+cd Docker/ubuntu
+docker build -t ubuntu20:latest .
+docker run --rm -p 8000:8000 ubuntu20
+```
+
+### Amazon Linux
+
+```shell
+cd Docker/al2
+docker build -t al2:latest .
+docker run --rm -p 8000:8000 al2
+```
+
+### get results
+
+```shell
+➜ curl http://localhost:8000/
+# HELP python_gc_objects_collected_total Objects collected during gc
+# TYPE python_gc_objects_collected_total counter
+python_gc_objects_collected_total{generation="0"} 22076.0
+python_gc_objects_collected_total{generation="1"} 3640.0
+python_gc_objects_collected_total{generation="2"} 0.0
+# HELP python_gc_objects_uncollectable_total Uncollectable object found during GC
+# TYPE python_gc_objects_uncollectable_total counter
+python_gc_objects_uncollectable_total{generation="0"} 0.0
+python_gc_objects_uncollectable_total{generation="1"} 0.0
+python_gc_objects_uncollectable_total{generation="2"} 0.0
+# HELP python_gc_collections_total Number of times this generation was collected
+# TYPE python_gc_collections_total counter
+python_gc_collections_total{generation="0"} 93.0
+python_gc_collections_total{generation="1"} 8.0
+python_gc_collections_total{generation="2"} 0.0
+# HELP python_info Python platform information
+# TYPE python_info gauge
+python_info{implementation="CPython",major="3",minor="7",patchlevel="10",version="3.7.10"} 1.0
+# HELP process_virtual_memory_bytes Virtual memory size in bytes.
+# TYPE process_virtual_memory_bytes gauge
+process_virtual_memory_bytes 3.02481408e+08
+# HELP process_resident_memory_bytes Resident memory size in bytes.
+# TYPE process_resident_memory_bytes gauge
+process_resident_memory_bytes 2.8905472e+07
+# HELP process_start_time_seconds Start time of the process since unix epoch in seconds.
+# TYPE process_start_time_seconds gauge
+process_start_time_seconds 1.65062351567e+09
+# HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.
+# TYPE process_cpu_seconds_total counter
+process_cpu_seconds_total 0.25
+# HELP process_open_fds Number of open file descriptors.
+# TYPE process_open_fds gauge
+process_open_fds 6.0
+# HELP process_max_fds Maximum number of open file descriptors.
+# TYPE process_max_fds gauge
+process_max_fds 1.048576e+06
+# HELP packages_updates Number of available apt updates
+# TYPE packages_updates gauge
+packages_updates 0.0
+# HELP packeges_security_updates Number of available apt security updates
+# TYPE packeges_security_updates gauge
+packeges_security_updates 0.0
+```